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1.How to weld mild steel? Low carbon steel has low carbon content and good plasticity, and can be prepared into various forms of joints and components. In the welding process, it is not easy to produce hardened structure, and the tendency to produce cracks is also small. At the same time, it is ... Read more »

Harmful factors of welding materials (1) The main research object of welding labor hygiene is fusion welding, and among them, the labor hygiene problems of open arc welding are the biggest, and the problems of submerged arc welding and electroslag welding are the least.   (2) The main harmful fa... Read more »

Ⅰ. Start up   1. Turn on the power switch on the front panel and set the power switch to the “ON” position. The power light is on. The fan inside the machine starts to spin.    2. The selection switch is divided into argon arc welding and manual welding.   Ⅱ. Argon arc weld... Read more »

1. What is the purpose of steel annealing? Answer: ①Reduce the hardness of steel and improve plasticity, so as to facilitate cutting and cold deformation processing; ②Refine the grain, uniform the composition of steel, improve the performance of steel or prepare for future heat treatment; ③Elimin... Read more »

The so-called welding skills are simple welding methods, correct electrode angle and operation, and your welds will not be too bad. At the beginning of welding, due to the lack of mastery of the welding rhythm and unskilled handling techniques, it will cause pauses. If it is deeper and shallower,... Read more »

Welding can use AC or DC welding machine. When using a DC welding machine, there are positive connection and reverse connection. Factors such as the electrode used, the condition of the construction equipment, and the welding quality should be considered. Compared with AC power supply, DC power s... Read more »

Welding current, voltage and welding speed are the main energy parameters that determine weld size. 1. Welding current When the welding current increases (other conditions remain unchanged), the penetration depth and residual height of the weld increase, and the melting width does not change much... Read more »

Red head thoriated tungsten electrode (WT20) Currently the most stable and widely used tungsten electrode is mainly used in the welding of carbon steel, stainless steel, silicon copper, copper, bronze, titanium and other materials, but it has slight radioactive pollution. Gray head cerium tungst... Read more »

Argon tungsten arc welding uses argon as a shielding gas to heat and melt the welding material itself (it is also melted when the filler metal is added) by means of the arc generated between the tungsten electrode and the weld body, and then forms the welding of the weld metal Way. The tungsten e... Read more »

What is flux-cored arc welding? Flux-cored wire arc welding is a welding method that uses the arc between flux-cored wire and workpiece to heat, and its English name is simply FCAW. Under the action of arc heat, welding wire metal and workpiece are connected by melting, forming a weld pool, arc f... Read more »