Posts by wilsonpipeline

Straight seam steel pipe is a steel pipe whose weld seam is parallel to the longitudinal direction of the steel pipe. The production process of straight seam steel pipe is simple, with high production...

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 ...

Seamless steel pipe has better pressure capacity, strength is higher than ERW welded pipe. So it is widely applied in high pressure equipment, and thermal, boiler industries. Generally the welding sea...

The vast majority of oil and gas pipelines in the world require the use of longitudinal submerged arc welded pipes (LSAW). Canada and other western developed countries have improved the technology of ...

Petroleum casing pipe is an important device for petroleum drilling, and its main components also include drill pipes, core tubes and casings, drill collars, and small-diameter drilling steel pipes. ...