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Electric resistance welding  (ERW) refers to a method in which electric current passes through the weldment and the resistance heat generated at the contact point as a heat source to locally heat the ...

High-frequency welding originated in the 1950s. It is a new type of welding process that uses the skin effect and proximity effect produced by high-frequency current to connect steel plates and other ...

Common problems in high frequency welding and their causes and solutions: ⑴ Weak welding, desoldering, cold folding; Reasons: 1. Mismatch between output power, pressure and speed. 2. The edge of...

There are many causes of gas pipeline leakage accidents. In an industrial system dominated by persified mechanisms, management and maintenance and construction quality are the main causes of gas pipel...

Electric resistance welding (ERW) was invented at the end of the 19th century. It is a method of welding by applying pressure to the assembled weldment through electrodes and using the resistance heat...

According to a Rigzone report on January 1, LNG traders expect that LNG demand will recover rapidly in 2021 after the 2019 new crown pneumonia epidemic has caused significant price fluctuations. Due ...