Posts by wilson

1. Basic requirements for the appearance of lsaw welds Before the non-destructive testing of lsaw steel pipes, the inspection of the weld appearance shall meet the requirements. The general requiremen...

The bearing capacity of a lsaw steel pipe is related to two points. One point is the mechanical properties of the steel, which is related to the commonly stated yield point, tensile strength, elongati...

The role of cold expansion of lsaw steel pipe: (1) Improve the geometrical dimensional accuracy of the pipe body and pipe end of the lsaw steel pipe, so that the diameter and roundness of the pipe bod...

According to different production methods, seamless steel pipe production process can be pided into hot rolled pipe, cold rolled pipe, cold drawn pipe and extruded pipe. 1. Hot-rolled seamless pipes ...

JCOE lsaw steel pipe manufacturing process is a new type of welded steel pipe forming technology that was developed in the 1990s. The main forming process of this technology is to mill the edge (or pl...

LSAW steel pipes have several flaw detection tests. LSAW steel pipes are now used more and more widely. According to different projects, the standards for using steel pipes are also different. General...

The main types of lsaw steel pipes for automobiles include automobile automobile silencer pipes, transmission shaft pipes, thrust pipes, condenser pipes, exhaust pipes, steering shaft pipes, and shock...

1. Comparison of wall thickness tolerance between erw steel pipe and seamless steel pipe ERW steel pipe: hot-rolled coil is used as raw material, the thickness limit of modern hot-joining can be contr...

In recent years, there has been a trend in the world to replace high-cost seamless steel pipes with high-quality welded pipes. This is mainly due to the continuous breakthrough in the production techn...

When the hydraulic test of the erw steel pipe is carried out, it is often found that the bursting opening is cracked from the weld of the erw steel pipe, which indicates that the strength of the welde...