ws250300400 electric welding argon arc welding and arc plate high frequency circuit board repair parts



NEJE Solar Auto Darkening UV/IR Protection Welding Helmet Goggles - Black NEJE Solar Auto Darkening UV/IR Protection Welding Helmet Goggles - Black Новинка

NEJE Solar Auto Darkening UV/IR Protection Welding Helmet Goggles - Black

Function features: 1. Completely protect your eyes when welding. 2. Release handsthen reduce the time of welding machine. 3. Solar power and special lithium battery power supply no need any replacement. 4.You can adjust the dark state according to the external adjustable knob. 5. It can be widely used in the mainstream way of spot welding argon arc welding carbon dioxide gas shielded arc welding plasma welding etc.
NEJE Solar Auto Darkening UV/IR Protection Welding Helmet Welder Mask - Black + Yellow NEJE Solar Auto Darkening UV/IR Protection Welding Helmet Welder Mask - Black + Yellow Новинка

NEJE Solar Auto Darkening UV/IR Protection Welding Helmet Welder Mask - Black + Yellow

Function features: 1. Completely protect your eyes when welding. 2. Release handsthen reduce the time of welding machine. 3. Solar power and special lithium battery power supply no need any replacement. 4.You can adjust the dark state according to the external adjustable knob. 5. It can be widely used in the mainstream way of spot welding argon arc welding carbon dioxide gas shielded arc welding plasma welding etc.
Anti-arc Light Safety Goggles for Electrowelding / Burn-in / Argon Arc Welding - Bright Black Anti-arc Light Safety Goggles for Electrowelding / Burn-in / Argon Arc Welding - Bright Black Новинка

Anti-arc Light Safety Goggles for Electrowelding / Burn-in / Argon Arc Welding - Bright Black

It can cover the eyes from the both side; Protects your eyes during electrowelding; Optical glass lens dual connections between the legs and the frame; Stylish and durable
FEA of Residual Stresses in Butt Welding of Two Stainless Steel Plates FEA of Residual Stresses in Butt Welding of Two Stainless Steel Plates Новинка

FEA of Residual Stresses in Butt Welding of Two Stainless Steel Plates

One of the most widely used permanent joining processes is welding. Welding results in a very complex thermal cycle which results in irreversible elastic-plastic deformation and residual stresses in and around fusion zone and heat affected zone (HAZ). Residual stresses may be an advantage or disadvantage in structural components depending on their nature and magnitude. Due to these residual stresses produced in and around the weld zone the strength and life of the component is reduced. In present study a commercially available finite element code was used to model and analyze a three dimensional model of the butt welded joint of two AISI 304 stainless steel plate used for manufacturing sugar hoppers. Butt welding simulations were performed by four different welding techniques - submerged arc welding (SAW), manual metal arc welding (MMAW), gas metal arc welding (MIG) and gas tungsten arc welding (TIG). Analysis of butt welded joint showed that butt welds produced by MIG resulted in lowest value of residual stress in plates. Critical analysis of butt welded joint by MIG and TIG showed that by increasing plate thickness, the residual stresses also increases.
Characterization and Quality Control of TIG Spot Welding Characterization and Quality Control of TIG Spot Welding Новинка

Characterization and Quality Control of TIG Spot Welding

This book deals with the TIG spot welding in specialist side. Gas tungsten arc welding is an arc welding process that uses an arc between a tungsten electrode (non-consumable) and the weld pool. The process is used with shielding gas and without the application of pressure and is used with or without a filler metal. GTAW is often used for an application that demand high quality welding such as the offshore industry, combined heat and power plant industry, the petrochemical industry, the food industry, the chemical industry and the nuclear industry. An investigation is made to study the effect of welding parameters such as welding current,voltage and time on the weld quality of a thin plate of similar and dissimilar carbon steel and stainless steel. A numerical analysis of TIG spot welding process using finite element method was performed to establish the temperature distributions for similar and dissimilar carbon steel and stainless steel thin plate. Non-linear transient heat analysis using welding parameters such as heat generation and free convection with ambient temperature was performed in order to obtain the temperature.
PLC Controlled Automatic Robotic Arc Welding System PLC Controlled Automatic Robotic Arc Welding System Новинка

PLC Controlled Automatic Robotic Arc Welding System

Robot have become common place in industrial environment mainly in the automobile industries, allowing task from the most repetitive to the most complex and hazardous to be automated. The purpose of this work is to study the behavior of the automated arc welding system using 6-axis vertically articulated arc welding robotic arm and Programmable Logic Controller. The actuators, controllers and driver hardware systems have been introduced. The system has been designed keeping in mind the size of the jigs/fixtures, robotic arm and accordingly the selection of the controller and servo motor to control the system in auto/manual mode. This work presents an automatic arc welding system used for the welding of steel pipes with the help of a six axes vertically articulated robot and Programmable Logic Controller (PLC). Electrical control panel has been used to control the arc welding robot and jigs/fixtures. The design of jigs/fixtures has been carried out and selection of servo motors/drives, arc welding robot, PLC has been made. In this work, a system has been presented and demonstrated to assist and simplify industrial welding procedures.Today it is called Green Welding Technology
Effect of heat Input on Residual Stress in Submerged Arc welding Effect of heat Input on Residual Stress in Submerged Arc welding Новинка

Effect of heat Input on Residual Stress in Submerged Arc welding

Submerged arc welding generates high amount of heat and due to continuous heat and cooling the residual stress developed in weldment. This book is an effort to understand the temperature distribution and residual stress development in welding. The thermocouples are used to online measurement of temperatures and XRD technique for the residual stress measurements. Control of residual stress development can improve the weld strength and reduce distortion.
50pcs/lot NEW SLA-24VDC-SL-A SLA-24VDC 30A 250VAC SONGLE DIP4 Power supply board relay welding inverter repair parts 50pcs/lot NEW SLA-24VDC-SL-A SLA-24VDC 30A 250VAC SONGLE DIP4 Power supply board relay welding inverter repair parts Новинка

50pcs/lot NEW SLA-24VDC-SL-A SLA-24VDC 30A 250VAC SONGLE DIP4 Power supply board relay welding inverter repair parts

50pcs/lot NEW SLA-24VDC-SL-A SLA-24VDC 30A 250VAC SONGLE DIP4 Power supply board relay welding inverter repair parts
10pcs/lot NEW SLA-24VDC-SL-A SLA-24VDC 30A 250VAC SONGLE DIP4 Power supply board relay welding inverter repair parts 10pcs/lot NEW SLA-24VDC-SL-A SLA-24VDC 30A 250VAC SONGLE DIP4 Power supply board relay welding inverter repair parts Новинка

10pcs/lot NEW SLA-24VDC-SL-A SLA-24VDC 30A 250VAC SONGLE DIP4 Power supply board relay welding inverter repair parts

10pcs/lot NEW SLA-24VDC-SL-A SLA-24VDC 30A 250VAC SONGLE DIP4 Power supply board relay welding inverter repair parts
Rex Miller Audel Welding Pocket Reference Rex Miller Audel Welding Pocket Reference Новинка

Rex Miller Audel Welding Pocket Reference

Featuring updated charts dealing with the most common situations welding workers face on the job , this comprehensive, pocket-sized reference is based on recommendations from working professionals and covers welding symbols and definitions, types of joints and welds, typical welding station configurations, oxygen cylinders, arc-welding charts, U.S metric measures, and more.
NEJE SH0003-1 Solar Auto Darkening Electric Welding Helmet / Cap Len Filter - Black + Purple NEJE SH0003-1 Solar Auto Darkening Electric Welding Helmet / Cap Len Filter - Black + Purple Новинка

NEJE SH0003-1 Solar Auto Darkening Electric Welding Helmet / Cap Len Filter - Black + Purple

1 Security architecture design international pop style ergonomics ample interior space easy to operate comfortable to wear full protection of the face neck and ears; 2 Using high-quality LCD and optical coatings shielded permanent UV / IR protection (protection class 15 #) protecting operator from the harmful rays of UV / IR injury; 3 The new optical control of liquid crystal light valve auto-dimming technology multi-layer LCD and coated glass effectively block the ultraviolet infrared visible light is more easy to pass thereby protecting the welders eyes so the clearly observe the welding object reducing the repeated welding improving welding efficiency; 4 The automatic change of the original light control circuit the goggles on the arc of the response time of less than 1/10000 seconds from the bright state level into a dark state level thereby reducing the unexpected moments arc damage to the eyes; 5 The original anti-interference switch design to prevent the side near the complex environment to see clearly the welding object; 6 The arc disappears goggles flip to the time of the bright state-level protection by the dark state level be set according to demand within 0.1 seconds / 1.2 seconds; 7 With manual level setting function automatically change light welding goggles bright state level DIN4 dark state level DIN9 ~ DIN13Darkening welding cap. Item Parameter: Light Shade: DIN4; Dark Shade: DIN9~13; Way to shift Dark State:Outer Control stepless shift; Switching Time:1/10000s; Sensitivity Adjustment:Stepless Control; Delay Time:0.1S~0.6S; Power Supply: lithium battery / Solar powered; Rated Capacity of Lithium Barrtery:1200mAh; Operating Temperature:-10~65'C Sensors to Weld Arc: 2; Mask Material:PA/PP; Protect Grade against UVB: DIN15.
Pro'skit S1-B161 Portable Wireless Handheld Electric Soldering Iron - Blue + Black Pro'skit S1-B161 Portable Wireless Handheld Electric Soldering Iron - Blue + Black Новинка

Pro'skit S1-B161 Portable Wireless Handheld Electric Soldering Iron - Blue + Black

Can up to 185°C/365°F during 12s; Soldering tip max. temperature is 9W(450°C/840°F); Convenient to carry suitable for precision welding. - Application range: ordinary circuit board welding precision tiny parts welding automotive electronics repair communication electronic maintenance shipping electronic equipment maintenance metal screws(nuts). - Operating time: 30minutes about 160 soldering points; Max. continuous solder joints: about 160.
Solar Power Auto Darkening Welding Helmet Mask Adjustable Welding Hood Shield Solar Power Auto Darkening Welding Helmet Mask Adjustable Welding Hood Shield Новинка

Solar Power Auto Darkening Welding Helmet Mask Adjustable Welding Hood Shield

The solar power auto-darkening welding helmet is just one of the many necessary safety tools for welders.This welding helmet is designed for Arc welding or cutting processes such as MIG, MAG, TIG, SMAW and Plasma Arc. The welding mask is designed to protect the eyes and faces from spark, spatter, and harmful radiation under normal welding conditions. Suitable for high welding operation temperature. Features Adjustable headband size Adjustable headband size (52-61cm) to fit most users. UV / IR radiation protection With high-level UV / IR protection, you will weld safely without damaging. More protection Protect the eyes and faces from spark, spatter, and harmful radiation under normal welding conditions. Auto darkeningThe lenses darken automatically when bright arcs are present, freeing the welder's hands from manually lowering the eye shield when ready to weld. Specifications Name Auto Darkening Welding Helmet Material PP Features UV / IR protection Adjustable Headband Size 52-61cm Headband Height 8.5-11.5cm View Size 11.5 x 5.5cm Response time 1/25000-30000s UV Penetration Rate 313nm
NEJE Flame Skeleton Solar Auto Darkening UV/IR Protection Welding Helmet Goggles - Black + Orange NEJE Flame Skeleton Solar Auto Darkening UV/IR Protection Welding Helmet Goggles - Black + Orange Новинка

NEJE Flame Skeleton Solar Auto Darkening UV/IR Protection Welding Helmet Goggles - Black + Orange

Function features: 1.Completely protect your eyes. when welding the red/uv and strong light. 2.Release handsthen reduce the time of welding machine 3.Solar power and special lithium battery power supply Do not any replacement. 4.You can according to adjust the dark state through the external adjustment knob.No need to pick up the hat for adjustment. 5.It can be widely used in the mainstream way of spot welding argon arc welding carbon dioxide gas shielded arc welding plasma welding etc Description: Shade Adjustment Features a shade adjustment for light or dark settings. This feature allows you to set the helmet to a lighter shade when welding thin material and a darker shade for welding heavier material. Sensitivity Adjustment The sensitivity adjustment adjusts for ambient lighting and the arc brightness. This will compensate when you walk outside in the bright sun light. Adjustable Shade Delay This is how long the helmet takes to from the light state to the dark state. This setting comes in handy when welding heavy material and compensates for the bright molten metal left over after your done welding. Plasma Cutting Allows you to use the helmet locked in the light state (shade 4) which gives you full UV and IR protection . Plasma cutting has a limited arc but still requires protection. This setting lets you see what you are cutting while providing maximum protection. Oxygen Acetylene Torch Cutting This setting is perfect for torch cutting with an oxygen acetylene torch. Offers full face protection while cutting. Grinding Setting mode This setting you to see what you are grinding while allowing full face protection. Fully Adjustable Head Gear Features fully adjustable ratcheting headgear. Also includes a very comfortable sweat band. The head gear allows you to position the helmet further or closer away from your face. This feature is only found on $400 welding helmets. Super Light Weight Helmet is extremely light-weight to prevent user fatigue. Flame Skull Look Finished in a very cool Flame Skull look. There no other welding helmets on the market with this new Flame Skull finish.
6-in-1 Carbon Fiber Synthetic Plastics Anti-static Tweezers 6-in-1 Carbon Fiber Synthetic Plastics Anti-static Tweezers Новинка

6-in-1 Carbon Fiber Synthetic Plastics Anti-static Tweezers

Type: 07510 (standard) to cooperate with integrated circuit chip welding install or replace components and parts; Type: 07511 precision electronic parts operation; Type: 07512 (thicken and lengthen) will not bend when clamp circuit board with strong force the parts will not fall off; Type: 07513 (round flat head) avoid components damaged suitable for extract circuit wafer; Type: 07514 suitable for high density integrated circuit wafer; Type: 07515 to extract components in narrow place
Transforme Solar Auto Darkening Welding Helmet TIG MIG Welder Lens Mask Transforme Solar Auto Darkening Welding Helmet TIG MIG Welder Lens Mask Новинка

Transforme Solar Auto Darkening Welding Helmet TIG MIG Welder Lens Mask

Description : Transforme Solar Auto Darkening Welding Helmet TIG MIG Weld Welder Lens Skull Mask Features : High strong materials and fire retardant, can prevent resistance, anti-aging. High definition protective filter, you can see the welding conditions clearly when weling the goods. Welding luminosity is soft and comfortable. It works the moment you start work, this products adopts advanced circuit design. Striking the arc, the observing window darkens immediately. Permanent UV/IR protection. Fashion appearance. ultra light designing, wearing comfortable. High performance solar cells and lithium battery. Sensitivity and delay time can be adjustable. Grinding and weling mode can be chosen. Specification : Masks materials : PP Light states : DIN 4 Dark states : DIN9-13 free adjustment(Outside Variable) View Area : 9.2 x 4.2cm/3.62 x 1.65 inch Response time(bright to dark) :
60W Electronics DIY Welding Soldering Iron - Black + Blue (AC 220V) 60W Electronics DIY Welding Soldering Iron - Black + Blue (AC 220V) Новинка

60W Electronics DIY Welding Soldering Iron - Black + Blue (AC 220V)

Material: high temperature-resistant plastic - Power: 60W - Voltage: AC 220V (2-flat-pin plug type) - High quality durable soldering iron - Perfect for all types of general purpose soldering work including printed circuit boards electronic kits electronic parts/wire repair and more - Ideal for electronic technicians hobbyists and craftsmen etc. - Power cable length: 135.5cm
The Effect of Artisan's and Business Attributes on Arc Welding Quality The Effect of Artisan's and Business Attributes on Arc Welding Quality Новинка

The Effect of Artisan's and Business Attributes on Arc Welding Quality

ABSTRACT The quality of products from the MSE sector is affected by both the artisan’s and business attributes. Although many studies have been conducted to establish the constraints to business growth in the MSE sector, no specific study has been conducted to find out how the artisan’s and business attributes affect the quality of arc welding in the metalwork sub-sector. This study was, therefore, designed to investigate the relationship between the effect of the selected factors on the quality of arc welding in the small-scale metalwork sub-sector. Eight groups with a total of 72 artisans (36 with secondary education and 36 with primary education) were selected for evaluation. A structured questionnaire and a product design to be fabricated were used in the study. The questionnaire was used to get information regarding the artisan’s attributes and business characteristics. The fabricated product was assessed and scores awarded based on the quality of arc welding. The data collected was analyzed using the Statistical Analysis System (SAS) and excel spreadsheet. The analysis of variance (ANOVA) for comparisons of means using the LSD method at an alpha level of 5% were done.
Universal Soldering Holder Stand For Welding With Magnifier Universal Soldering Holder Stand For Welding With Magnifier Новинка

Universal Soldering Holder Stand For Welding With Magnifier

Universal Soldering Holder Stand For Welding With Magnifier Description: Item:Solder Holder Magnification: 3X Lens diameter: about 9cm Max width of Clamping frame: 13.5cm Max height of stand: 14.5cm Material: cast iron for base, metal pipe for support Usage:For Welding RC Model Parts Features: Welding auxiliary bracket, clamp to weld small parts, such as small circuit boards, small plugs, wires and so on. Security firm welding. Comes with a magnifying glass, you can observe the operation of welding small parts. With stainless steel tray. Package Included: 1 x Universal Solder Holder With Magnifier
JR - 16 mm Aluminum Circuit Board Cooling Plate - White + Silver (100 PCS) JR - 16 mm Aluminum Circuit Board Cooling Plate - White + Silver (100 PCS) Новинка

JR - 16 mm Aluminum Circuit Board Cooling Plate - White + Silver (100 PCS)

Brand No Material Aluminum alloy + Color White + silver Quantity 100 Power 0 W Color BIN No Rate Voltage 0 V Connector Type Welding Application Suitable for welding of 1W / 3W / 5W flashlight spotlight Packing List 100 x Aluminum plate
30W Electronics DIY Welding Soldering Iron - Yellow (220~240V) 30W Electronics DIY Welding Soldering Iron - Yellow (220~240V) Новинка

30W Electronics DIY Welding Soldering Iron - Yellow (220~240V)

Material: Plastic handle + Metal - Power: 30W - Voltage: 220~240V (2-flat-pin plug) - High quality durable soldering iron - Perfect for all types of general purpose soldering work including printed circuit boards electronic kits electronic parts/wire repair and more - Ideal for electronic technicians hobbyists and craftsmen etc. - Power cable length: 140cm
60W Electronics DIY Welding Soldering Iron (220~240V) 60W Electronics DIY Welding Soldering Iron (220~240V) Новинка

60W Electronics DIY Welding Soldering Iron (220~240V)

Material: Plastic handle + Metal - Power: 60W - Voltage: 220~240V (2-flat-pin plug) - High quality durable soldering iron - Perfect for all types of general purpose soldering work including printed circuit boards electronic kits electronic parts/wire repair and more - Ideal for electronic technicians hobbyists and craftsmen etc. - Power cable length: 120cm
50W Electronics DIY Welding Soldering Iron - Yellow (220~240V) 50W Electronics DIY Welding Soldering Iron - Yellow (220~240V) Новинка

50W Electronics DIY Welding Soldering Iron - Yellow (220~240V)

Material: Plastic handle + Metal - Power: 50W - Voltage: 220~240V (2-flat-pin plug) - High quality durable soldering iron - Perfect for all types of general purpose soldering work including printed circuit boards electronic kits electronic parts/wire repair and more - Ideal for electronic technicians hobbyists and craftsmen etc. - Power cable length: 140cm
50W Electronics DIY Welding Soldering Iron (220~240V) 50W Electronics DIY Welding Soldering Iron (220~240V) Новинка

50W Electronics DIY Welding Soldering Iron (220~240V)

Material: Plastic handle + Metal - Power: 50W - Voltage: 220~240V (2-flat-pin plug) - High quality durable soldering iron - Perfect for all types of general purpose soldering work including printed circuit boards electronic kits electronic parts/wire repair and more - Ideal for electronic technicians hobbyists and craftsmen etc. - Power cable length: 120cm
Jtron Universal Double-Sided PCB Board - Green (2 x 8cm) Jtron Universal Double-Sided PCB Board - Green (2 x 8cm) Новинка

Jtron Universal Double-Sided PCB Board - Green (2 x 8cm)

Brand Jtron Model 03100390 Quantity 1 Color Green Material Glass fiber Specification Layers: Double; Layout: 2.54 standard layout; Sheet: Duplex full fiberglass sheet manufacturers: International material; Board process: spray tin plate; Thickness 1.6; white green oil Features 1 An easy welding easily oxidized and difficult to deformation high temperature; 2 Pin hole components are designed to King Kong (1.0mm) almost all conventional pin components can be installed Application 1 The plate edge duplex were increased signal access pads to facilitate the production of certain projects with a signal input or engineering prototype model; 2 Using the universal board made a prototype or project board has high mechanical strength welding firm etc. English Manual/Spec Yes Other 1 This section is double-sided green oil NC 2.54 HASL process to facilitate welding easily oxidized and difficult to deformation high temperature; 2 Pin hole components are designed for large holes (1.0mm) almost all conventional pin components can be installed; 3 Plate edge duplex were increased signal access pads to facilitate the production of certain projects with a signal input or engineering prototype model; 4 Using the entire FR4 fiberglass sheet can effectively prevent the pad off; 5 The use of universal board made a prototype or project board has high mechanical strength welding firm etc. Packing List 1 x Double-sided PCB board
Few Second UV Light Liquid Quick Fix Glass Welding Compound Repair Glue Pen Tool Few Second UV Light Liquid Quick Fix Glass Welding Compound Repair Glue Pen Tool Новинка

Few Second UV Light Liquid Quick Fix Glass Welding Compound Repair Glue Pen Tool

Description: Few Second UV Light Liquid Quick Fix Glass Welding Compound Repair Glue Pen Tool Features: A super powered liquid plastic welding compound that you can use to quickly and easily make permanent seals and repairs Fast and strong. Create an everlasting bond in just few seconds Only cures with UV light so you can position and re-position your repair Permanently repair plastic, metal, wood, glass, aluminum, elastic, fiberglass, vinyl, leather and more Specification: Case Material: Plastic Power Supply: 2 x CR1620 3V Betteries (Included) Size: Approx. 135x28mm/ 5.31x1.1" Package includes: 1 x UV Light Liquid Quick Fix Glue Pen Details pictures:
Process Variables And Post Weld Heat Treatment Effects On Steel Weld Process Variables And Post Weld Heat Treatment Effects On Steel Weld Новинка

Process Variables And Post Weld Heat Treatment Effects On Steel Weld

This monograph presents the outcome of our investigation that was conducted to correlate process variables in shielded metal-arc welding and post weld heat treatment on some mechanical properties of low carbon steel weld. From the results obtained we observed that welding current and post weld heat treatment temperatures influences the tensile strength, impact strength and hardness of welded low carbon steel. As the welding current increases the hardness and strength increases but impact strength reduces, while hardness and strength continuously reduces but impact strength increases as post weld heat treatment temperatures increases. This outcome will help to eliminate much of the “guess work” often employed by welders to specify welding parameters and help them to properly select them for a given task to provide a good weld quality. With this finding welder can now adequately select welding currents and post weld heat treatment temperatures for low carbon steel that will yield quality weld in shielded metal-arc welding without guess work.
Welding of Aluminium Welding of Aluminium Новинка

Welding of Aluminium

The welding of aluminium is most complicated because of its inherent thermo-physical properties like high thermal and electrical conductivity, coefficient of thermal expansion, low melting point,low strength,excellent ductility & oxide layer etc.There are so many welding processes which can be used for aluminium. Keeping in mind the potential capabilities of Metal Inert Gas (MIG) welding process in today’s fabrication industry like sound and consistent weld quality,all positional capabilities etc.and selecting aluminium as base metal due to its increased demand in aerospace and automotive industries,a study is undertaken for welding 6mm thick aluminium alloy plates. Three primary welding parameters viz. welding current, arc voltage, welding speed are selected for this study and the investigations are carried out to study their cumulative effect on the ultimate tensile strength, micro hardness and micro structure of these welding joints.The most important point is the presentation of material in clear and simplified way so that readers don't find any difficulty in its clear understanding.
JR-20MM-3W-RGB LED 25-in-1 Aluminum Substrate Board - White JR-20MM-3W-RGB LED 25-in-1 Aluminum Substrate Board - White Новинка

JR-20MM-3W-RGB LED 25-in-1 Aluminum Substrate Board - White

Brand N/A Model Material Aluminum alloy with copper and platinum circuit board Color White Quantity 1 Power 3 W Color BIN NO Rate Voltage NO V Connector Type Welding Application LED parts Packing List 1 x Aluminum substrate board
Pulsed self-regulation of electrode melting process Pulsed self-regulation of electrode melting process Новинка

Pulsed self-regulation of electrode melting process

The principles of phenomenon of a pulsed self-regulation of the arc melting process of a metal electrode, fed at a constant speed, are described. The process has an oscillating nature at the controlled values of welding current in a pulse and pause and, respectively, at a variable rate of the electrode melting. After decrease in arc length below the definite value, which corresponds to the preset “reference” value of the arc voltage, the power source increases spontaneously the current in a pulsed mode and its value becomes several times higher than the mean weighted value. It is result in increase the arc length and voltage. Then, when this voltage increases the “reference” value, the power source will “reset” the current to the level, being significantly lower than its weighted mean value. As a result, the electrode melting rate becomes much lower than its feed speed and the arc length is decreased. After the voltage decrease below its “reference” value, the values of the welding current are increased again. The cycle of the oscillating process of electrode melting is repeated. The spontaneous reaction of the power source is provided by a shape of its volt-ampere characteristic.
Kester-186 Pen With Rosin flux FPC PCB Plate Welding Repair Kester-186 Pen With Rosin flux FPC PCB Plate Welding Repair Новинка

Kester-186 Pen With Rosin flux FPC PCB Plate Welding Repair

Description: Kester-186 Pen With Rosin flux FPC PCB Plate Welding Repair This is Kester Rosin Pen. Designs for easier soldering of tab wire to solar cells. Superior fluxing ability. Flux flows smoothly and evenly for consistently secure and uniform solder connections with no mess. Rosin residue is non-corrosive, non-conductive, moisture resistant, and fungus resistant. Use For : Xbox 360 with reflow to fix the Red Ring of Death Playstation 3 with reflow to fix the Yellow Ring of Death Easier soldering of tab ribbons / wires to solar panel cells Other BGA, CPU, GPU reflow / reball / rework applications Features: Improves soldering performance. Eliminates the need and expense of cleaning. Non-corrosive tack-free residues. Low Solid and No-Clean Flux No offensive odors are given off during soldering. There are no residues to interfere with electrical testing. Ideal for foam and spray application. No-clean fluxes provide good activity, are halogen-free and non-corrosive, and don't degrade surface insulation resistance. Package Includes : 1 x Kester Rosin Flux 186 PEN Details Pictures :
BEST 333 Solder Tip Refresher - Black Grey BEST 333 Solder Tip Refresher - Black Grey Новинка

BEST 333 Solder Tip Refresher - Black Grey

A bottle of repairable pointed welding head around 50 times blunt type such as horseshoe/knife type can also be used at least 30 times. Remove the black layer welding mouth. And butt welding mouth tin plating welding nozzle regeneration; For advanced electric welding machine to weld quality this product can make all kinds of welding head raised; Electric soldering iron head can't use how long will be oxidized oxidation after the welding head is not easy to welding components but can only be replaced; Through science and technology research developed economy and is simple easy to make your welding head for a new life; Win the time and improve the efficiency.
Charles McConnell N. Audel Pipefitter's and Welder's Pocket Manual Charles McConnell N. Audel Pipefitter's and Welder's Pocket Manual Новинка

Charles McConnell N. Audel Pipefitter's and Welder's Pocket Manual

This little book is big on answers Whether you're an apprentice in the piping trades or a seasoned tradesperson, you'll find this completely revised and updated guide has answers to the questions you'll encounter on the job. Get current, concise facts on * Metrics and conversions * Tungsten inert gas welding and arc welding * Steam heating, hot water, refrigeration, and air conditioning systems * Grooved end/plain end piping systems * Process piping using plastics * Automatic fire protection systems * Terms, BTU fuel values, abbreviations, angle calculations, and more
60W Rubber Handle Electronics DIY Welding Soldering Iron (220~240V AC) 60W Rubber Handle Electronics DIY Welding Soldering Iron (220~240V AC) Новинка

60W Rubber Handle Electronics DIY Welding Soldering Iron (220~240V AC)

Long-lasting heater and durable steel tip this 60 Watt welding iron is an essential addition to any workshop or home. Fast heating and high quality 60W soldering iron so you can start working instantly. Plastic hand grip protects hand from heat. It is great for safely repair delicate electronic equipment such as PC boards connectors etc. - 60 Watt power soldering iron - Perfect for all types of general purpose soldering work including printed circuit boards electronic kits electronic parts/wire repair and more - Ideal for electronic technicians hobbyists craftsmen etc. - 60 Watt power - 220~240 Volt AC (EU plug) - Power cable length: 140cm
Welding Metallurgy Welding Metallurgy Новинка

Welding Metallurgy

The premier reference for welding metallurgy, completely revised and expanded Since its initial publication in 1987, Welding Metallurgy has been the standard text for the instruction of welding in technical schools and as a reference for professional welders. Updating the existing material and adding a substantial amount of new content, the Second Edition expands the scope of the first and remains the benchmark resource in its field. Metallurgical phenomena are explained with the help of illustrations that integrate the phase diagram, thermal cycle, kinetics, microstructure, and physical properties. More exercise problems are provided in the Second Edition, and a Solutions Manual is available upon request. Examples of updated features include: ? Much sharper photomicrographs and line drawings ? Updated heat–source efficiency and melting efficiency ? Updated and expanded chemical reactions in welding ? Turbulence (now included in weld pool convection), flow visualization, and arc–plasma dragging ? Solute redistribution and microsegregation have been expanded and the solidification path added ? Solidification modes are explained with more illustrations ? Ferrite formation mechanisms, new ferrite prediction methods, the effect of cooling rate, and factors affecting the austenite–ferrite transformation ? Six different liquation mechanisms in the partially melted zone, the direction and modes of grain boundary (GB) solidification, and the resultant GB segregation Practitioners, researchers, and students will find Welding Metallurgy, Second Edition to be an invaluable, one–stop resource on the science of welding.
Some Studies on Friction Stir Welding of Stainless Steel 304 Some Studies on Friction Stir Welding of Stainless Steel 304 Новинка

Some Studies on Friction Stir Welding of Stainless Steel 304

Stainless steel is the most versatile and widely used material in the industries.It is used in each and every aspects of life like infrastructure development, defense,heavy machinery industries, automobile etc.Industries use conventional welding processes to weld stainless steel. The basic problems that are associated with those conventional welding processes like GMAW, GTAW and arc welding of stainless steel are hydrogen embrittlement, distortion and non ecofriendly nature.Friction stir welding(FSW) being a solid state welding process is free from most of defects usually produced in fusion welding processes (because of considerably lower heat input and absence of melting) . Apart from this, it has many advantages like improved mechanical properties of weldment, graining refining, and improves corrosion resistance, improved productivity and no requirement of filler material. In this book,feasibilty of welding of Stainless Steel 304 using FSW has been attempted using innovative fixture design. FSW operation is performed on retrofitted vertical milling machine. Classification of Stainless steels, their properties and applications has also explained in depth.
REWIN 40W Electronics DIY Welding Soldering Iron - Yellow (AC 220~240V) REWIN 40W Electronics DIY Welding Soldering Iron - Yellow (AC 220~240V) Новинка

REWIN 40W Electronics DIY Welding Soldering Iron - Yellow (AC 220~240V)

Model: NH-3240A - Material: Plastic handle + high manganese copper tip - Power: 40W - Voltage: AC 220~240V (2-flat-pin plug) - High quality durable soldering iron - Perfect for all types of general purpose soldering work including printed circuit boards electronic kits electronic parts/wire repair and more - Ideal for electronic technicians hobbyists and craftsmen etc. - Power cable length: 124cm
Tin Lead 0.8mm Rosin Core Solder Soldering Welding Iron Wire - Silver Tin Lead 0.8mm Rosin Core Solder Soldering Welding Iron Wire - Silver Новинка

Tin Lead 0.8mm Rosin Core Solder Soldering Welding Iron Wire - Silver

Color: Silver - 60/40 rosin core solder - Wire diameter: 0.8mm - Melting point: 185'C - Good solderability insulation resistance no spattering and non-corrosive. - Widely used in solder parts like circuit board electronics devices and others.
Скамья для пресса Winner/Oxygen Arc Sit Up Board Скамья для пресса Winner/Oxygen Arc Sit Up Board Новинка

Скамья для пресса Winner/Oxygen Arc Sit Up Board

Изогнутая скамья для всесторонней проработки мышц пресса. За счет дугообразной формы мышцы живота и другие сопутствующие мышцы прокачиваются более эффективно. Имеет складную конструкцию, в собранном виде занимает минимум места. Регулируется по высоте (5 положений). Профиль металла станины - 40*40 мм., сидение двухцветное, прошитое по канту. Удобные валики-держатели для ног. Технические характеристики Тип скамья для пресса Упражнения пресс Рама устойчивая, с однослойной покраской (40*40 мм.) Нагрузка собственный вес Регулировка положения сидения есть Размер в рабочем состоянии (Д*Ш*В) 122*34*78 см. Вес нетто 8.5 кг. Макс. вес пользователя 120 кг. GmbH, Германия
Enhancement of a Fault Analysis Method Using Arc Resistance Formula Enhancement of a Fault Analysis Method Using Arc Resistance Formula Новинка

Enhancement of a Fault Analysis Method Using Arc Resistance Formula

Generally there are two different methods in calculating short-circuit currents in power system networks in terms of considering arc resistance in calculations, the first method is based on considering the value of the arc resistance as a constant value (usually 0.5?) or neglecting this value. By introducing some formulae for the arc resistance like the Warrington formula which is one of the most well-known formulae, second method could be applied. Second method is based on considering the value of the arc resistance in short-circuit calculation. To calculate the short-circuit current in power system networks our model should be accurate enough, to have an accurate model in theses studies the value of the arc resistance should be considered. The problem here is the non-linear relationship between fault current and arc resistance. In this study by using ETAP software for fault analysis, Microsoft visual studio 2010 (C++) for the related iteration, short-circuit studies based on symmetrical components has been investigated on two different IEEE networks. Results show the efficiency of the arc resistance formula which has been used in this study in special range of fault currents.
30W Rubber Handle Electronics DIY Welding Soldering Iron (220~240V AC) 30W Rubber Handle Electronics DIY Welding Soldering Iron (220~240V AC) Новинка

30W Rubber Handle Electronics DIY Welding Soldering Iron (220~240V AC)

30 Watt power soldering iron - Perfect for all types of general purpose soldering work including printed circuit boards electronic kits electronic parts/wire repair and more - Ideal for electronic technicians hobbyists craftsmen etc. - 30 Watt power - 220~240 Volt AC (EU plug) - Power cable length: 140cm
YIHUA 908+ 220V 60W Electric Iron Soldering Station Thermostat for SMT SMD Welding Rework Repair YIHUA 908+ 220V 60W Electric Iron Soldering Station Thermostat for SMT SMD Welding Rework Repair Новинка

YIHUA 908+ 220V 60W Electric Iron Soldering Station Thermostat for SMT SMD Welding Rework Repair

YIHUA 908+ 220V 60W Electric Iron Soldering Station Thermostat For SMT SMD Welding Rework Repair Station Traditional Soldering Station - Expensive? Bulky and heavy? inconvenient to carry-out?. Now, you can get rid of this trouble, As long as you have one YIHUA 908+ It's very portable, with high performance, 220-480 temperature adjustable . Also comes with 5 irons + Tips Cleaner + Holder for you. 110V Using Country? [Click here to find AC110V with US Plug Version] Easy and precisely to adjust the temperature. Small size, easy to carry, powerful functions. High quality heater, use time longer. Handle adopts imported special material, high temperature resistance and strong flexibility. Suitable for most soldering work, such as : SOIC, CHIP, QFP, PLCC, etc. Specification: Voltage: AC 220V/50Hz Temperature range: 220 - 480 adjustable Plug Type: EU Plug Operating temperature: 0 - 40 Storage temperature: - 20 - 80 Storage hmidity: 35% - 45% Package includes: 1 x Yihua 908+ Soldering Iron (We will send you a plug adapter according to your country.) 5 x Iron Tips 1 x Cleaning ball 1 x Holder Details pictures:
60W Rubber Handle Electronics DIY Welding Soldering Iron - Blue + Silver (250V AC) 60W Rubber Handle Electronics DIY Welding Soldering Iron - Blue + Silver (250V AC) Новинка

60W Rubber Handle Electronics DIY Welding Soldering Iron - Blue + Silver (250V AC)

60 Watt power soldering iron - Perfect for all types of general purpose soldering work including printed circuit boards electronic kits electronic parts/wire repair and more - Ideal for electronic technicians hobbyists craftsmen etc. - 250 Volt AC (Flat plug) - Power cable length: 110cm
30W Rubber Handle Electronics DIY Welding Soldering Iron (250V AC) 30W Rubber Handle Electronics DIY Welding Soldering Iron (250V AC) Новинка

30W Rubber Handle Electronics DIY Welding Soldering Iron (250V AC)

30 Watt power soldering iron - Perfect for all types of general purpose soldering work including printed circuit boards electronic kits electronic parts/wire repair and more - Ideal for electronic technicians hobbyists craftsmen etc. - 250 Volt AC (Flat plug) - Power cable length: 110cm
60W Rubber Handle Electronics DIY Welding Soldering Iron - Yellow + Silver (250V AC) 60W Rubber Handle Electronics DIY Welding Soldering Iron - Yellow + Silver (250V AC) Новинка

60W Rubber Handle Electronics DIY Welding Soldering Iron - Yellow + Silver (250V AC)

60 Watt power soldering iron - Perfect for all types of general purpose soldering work including printed circuit boards electronic kits electronic parts/wire repair and more - Ideal for electronic technicians hobbyists craftsmen etc. - 250 Volt AC (Flat plug) - Power cable length: 140cm
30W Rubber Handle Electronics DIY Welding Soldering Iron (110V AC) 30W Rubber Handle Electronics DIY Welding Soldering Iron (110V AC) Новинка

30W Rubber Handle Electronics DIY Welding Soldering Iron (110V AC)

30 Watt power soldering iron - Perfect for all types of general purpose soldering work including printed circuit boards electronic kits electronic parts/wire repair and more - Ideal for electronic technicians hobbyists craftsmen etc. - 110 Volt AC (Flat plug) - Power cable length: 140cm - Comes with iron stand
3M Speedglas 100V Auto-Darkening Welding Helmet 3M Speedglas 100V Auto-Darkening Welding Helmet Новинка

3M Speedglas 100V Auto-Darkening Welding Helmet

This Speedglas 100V welding helmet is lightweight and easy to use, suitable for various welding processes, such as MMA, MIG/MAG and TIG. It inherits Speedglas brand’s high-end quality as well as classic streamline appearance, frees your hands when providing protection to your face, no need to repeat masking action, effectively improve welding precision to largely improve work efficiency. Selectable Dark Shades 8 to 12 for optional, you are free to set the dark shades. Three Selectable Sensitivity Levels Users can free set three selectable sensitivity levels. Classic Speedglas Appearance Design Lightweight and durable to use. Wide Applications Applicable for MMA, MIG/MAG, TIG ≥20A, etc. arc welding processes. Ergonomic Design Features adjustable knob button for comfortable wearing. Sweat Absorbing Band No need to worry about sweating any more. Specifications Name100V Auto-Darkening Welding Helmet Expiratory VentNo Heat Reflecting SurfaceNo Adflo/Fresh Air-CNo Side WindowNo Viewing Area44 x 93 mm Light StateShade 3 Dark StateShade 8-12 (variable) UV/IR ProtectionShade 12 (permanent) Battery LifetimeApprox. 1500 hours Switching Time, Light-DarkApprox. 0.1 ms Switching Time, Dark-LightApprox. 40-250 ms Suitable for MMA, MIG/MAG, TIG ≥20A, etc. Product Weight440g Product Size27 x 24.5 x 29 cm Package Contents 1 x 100V Auto Darkening Welding Helmet
FT009-9 Circuit Board Box Spare Parts For Feilun FT009 RC Boat FT009-9 Circuit Board Box Spare Parts For Feilun FT009 RC Boat Новинка

FT009-9 Circuit Board Box Spare Parts For Feilun FT009 RC Boat

FT009-9 Circuit Board Box Spare Parts For Feilun FT009 RC Boat
FeiXiang DIY-SW1 Digital Power Amplifier Board w/ Tuning Volume Adjuster - Blue FeiXiang DIY-SW1 Digital Power Amplifier Board w/ Tuning Volume Adjuster - Blue Новинка

FeiXiang DIY-SW1 Digital Power Amplifier Board w/ Tuning Volume Adjuster - Blue

Innovation by a single power supply can share power with power amplifier board is very convenient use NE5532 op-amp welding has op-amp IC easy to change the op-amp improve playability all the CBB capacitor for Philips capacitance potentiometer is made of high quality production airtight potentiometer. With full frequency signal volume potentiometer very convenient to 2.1 power amplifier stage in front of the plate With LED lights real-time monitor the power status. Adopt double panel design makes every effort to signal transmission is concise signal-to-noise ratio is very high. Can be single/double sound channel input mono output. PCB is made of super hardness FR - 4 glass fiber board the board size: 82 x30mm excluding highlights thickness: 1.6 mm. 22Hz~300Hz frequency range the frequency range is no vocals the so-called low pass only the low frequency output after the need to add amplifier power amplifier plate can be used. Low frequency performance strength related to power amplifier board and speakers matching according to different situations please choose a different power amplifier board and bass speaker (passive subwoofer).
FT007-05 Circuit Board Box RC Boat Spare Parts for Feilun FT007 FT007-05 Circuit Board Box RC Boat Spare Parts for Feilun FT007 Новинка

FT007-05 Circuit Board Box RC Boat Spare Parts for Feilun FT007

FT007-05 Circuit Board Box RC Boat Spare Parts for Feilun FT007 - Yellow
FT007-05 Circuit Board Box RC Boat Spare Parts for Feilun FT007 FT007-05 Circuit Board Box RC Boat Spare Parts for Feilun FT007 Новинка

FT007-05 Circuit Board Box RC Boat Spare Parts for Feilun FT007

FT007-05 Circuit Board Box RC Boat Spare Parts for Feilun FT007
Electro-thermal Capillary Plasma Technique Electro-thermal Capillary Plasma Technique Новинка

Electro-thermal Capillary Plasma Technique

A confined capillary electrothermal plasma discharge is a type of plasma formation produced by an arc through a high current electric pulsed discharge in the range of several kilo amperes. The discharge forms an arc that generates a hot, high pressure, low molecular weight plasma source. The high temperature plasma in the interior of the capillary causes ablation and vaporization of surrounding insulation, which is enveloped by hot gaseous material and sustains the original plasma arc. Pulsed plasma jet from the electrothermal gun technology possesses a great potential to be an efficient source for production of novel materials such as ceramic and metal nanopowder or the thermal plasma spray coatings. Electrothermal plasma discharges have uses in many applications such as space satellite thrusters, high velocity launchers, fusion reactor pellet accelerators and as high heat flux sources.
L501882 1600W 2-Mode Electric Hot Air Heat Gun - Yellow (AC 220V) L501882 1600W 2-Mode Electric Hot Air Heat Gun - Yellow (AC 220V) Новинка

L501882 1600W 2-Mode Electric Hot Air Heat Gun - Yellow (AC 220V)

Brand: Lodestar - Model: L501882 - Quantity: 1 - Color: Yellow - Material: Stainless steel + plastic - US plug voltage: AC 220V - Temperature range: 120~590'C - Wind quantity: 300ml /min 480 ml / min - Power: 1600W - Suitable for plastic repair and welding; pipeline processing mechanical maintenance; paint removing welding(dry) etc - 2-Mode wind and temperature adjustment (High/Low) - Packing list: - 1 x Heat gun (US plug cable length: 120cm) - 1 x Gun month - 1 x Chinese user manual
110V/220V 60W Adjustable Electric Temperature Gun Welding Soldering Iron Tool with Tin Wire & 5Tips 110V/220V 60W Adjustable Electric Temperature Gun Welding Soldering Iron Tool with Tin Wire & 5Tips Новинка

110V/220V 60W Adjustable Electric Temperature Gun Welding Soldering Iron Tool with Tin Wire & 5Tips

Description: 110V/220V 60W Adjustable Electric Temperature Gun Welding Soldering Iron Tool with Tin Wire & 5Tips Features: Fever fast, handle lightweight, elegant. New design, stable performance, stainless steel housing, fast heat dissipation. Unique structure, handle low temperature, feel comfortable. High insulation, long life, fast heating heat, not easy to damp leakage, handle lightweight. Specifications: Product name: Electric Soldering Iron Material: Plastic handle electric iron Color: Black and blue Length: Approx. 18.5cm/7.08" Specifications: 220V EU Plug, 110V US Plug, 230V UK Plug optional~ Power: 60W Temperature range: 200-450 Package Included: 1 x Electric Soldering Iron 1 x Tin wire 1 x Iron Stand 5 x Environmental protection heads Details pictures:
Metal Inert Gas Welding of Mild Steel (IS 5986 Fe 410) Metal Inert Gas Welding of Mild Steel (IS 5986 Fe 410) Новинка

Metal Inert Gas Welding of Mild Steel (IS 5986 Fe 410)

The aim of this research is to investigate the optimization process parameters for Metal inert gas welding (MIG). This investigation presents the influence of welding parameters like welding current, welding voltage, welding speed and gas flow rate on weld bead geometry of MS 5986 Fe 410 carbon steel sheets during welding. The GMA welding parameters are the most important factors affecting the quality, productivity and cost of welding. A mixture of argon-carbon dioxide was employed for shielding purposes. Taguchi Technique is applied to plan the experiments. An Orthogonal array, signal to noise (S/N) ratio and analysis of variance (ANOVA) are employed to investigate the welding characteristics of MS 5986 Fe 410 carbon steel sheets & optimize the welding parameters. From the present study it was found that weld bead geometry plays an important role in determining the mechanical properties of a weld joint.
JXD 509G  RC Quadcopter Spare Parts Circuit Board JXD 509G  RC Quadcopter Spare Parts Circuit Board Новинка

JXD 509G RC Quadcopter Spare Parts Circuit Board

JXD 509G RC Quadcopter Spare Parts Circuit Board

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Function features: 1.Completely protect your eyes. when welding the red/uv and strong light. 2.Release handsthen reduce the time of welding machine 3.Solar power and special lithium battery power supply Do not any replacement. 4.You can according to adjust the dark state through the external adjustment knob.No need to pick up the hat for adjustment. 5.It can be widely used in the mainstream way of spot welding argon arc welding carbon dioxide gas shielded arc welding plasma welding etc Description: Shade Adjustment Features a shade adjustment for light or dark settings. This feature allows you to set the helmet to a lighter shade when welding thin material and a darker shade for welding heavier material. Sensitivity Adjustment The sensitivity adjustment adjusts for ambient lighting and the arc brightness. This will compensate when you walk outside in the bright sun light. Adjustable Shade Delay This is how long the helmet takes to from the light state to the dark state. This setting comes in handy when welding heavy material and compensates for the bright molten metal left over after your done welding. Plasma Cutting Allows you to use the helmet locked in the light state (shade 4) which gives you full UV and IR protection . Plasma cutting has a limited arc but still requires protection. This setting lets you see what you are cutting while providing maximum protection. Oxygen Acetylene Torch Cutting This setting is perfect for torch cutting with an oxygen acetylene torch. Offers full face protection while cutting. Grinding Setting mode This setting you to see what you are grinding while allowing full face protection. Fully Adjustable Head Gear Features fully adjustable ratcheting headgear. Also includes a very comfortable sweat band. The head gear allows you to position the helmet further or closer away from your face. This feature is only found on $400 welding helmets. Super Light Weight Helmet is extremely light-weight to prevent user fatigue. Flame Skull Look Finished in a very cool Flame Skull look. There no other welding helmets on the market with this new Flame Skull finish.
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