News
Cold Expansion of LSAW Steel Pipe
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...
Seamless Steel Pipe Production Process
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 ...
What Are the JCOE LSAW Steel Pipe Forming Processes?
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...
Flaw Detection Tests of LSAW Steel Pipe
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...
Application and Introduction of LSAW Steel Pipe in The Automotive Field
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...
ERW Steel Pipe Vs Seamless Steel Pipe
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...
The Application of ERW Steel Pipe in Oil and Chemical Industry
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...
Notes of ERW Steel Pipe When Testing Water Pressure
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...
Advantages and Disadvantages of High Frequency Welding Machine Welding Methods
High-frequency welding machine welding uses the unique skin effect and proximity effect of high-frequency current, so that the welding current is concentrated on the surface of the contact, the temper...
How to Prevent Seamless Steel Pipe Crack
Domestic high-precision seamless steel pipes generally improve the properties of materials by adding alloys to metals. After cold drawing, seamless steel pipes need to be subjected to stress relief an...
