High Frequency Welded Steel Pipe and Straight Arc Welded Seam Steel Pipe
1. High frequency welding process of straight seam steel pipe: according to the way in which the high frequency current generates heat in the workpiece can be pided into high frequency welding by cont...
Online Heat Treatment and Offline Heat Treatment of Seamless Square Tubes
The overall heat treatment process and overall heat treatment of the seamless square tube are characterized in that there is no temperature difference in the pipe wall during the treatment process, no...
Application of Boiler Tubes
The boiler tube is a type of seamless tube. The manufacturing method is the same as that of the seamless pipe, but there are strict requirements for the steel used in the manufacture of the steel pipe...
How is the Welded Square Tube Shaped
There are two main methods for forming welded square tubes: solid bending and hollow bending.
1. solid bending
It means that the bending is compacted, and the inner and outer rollers and the inner ...
How to Prevent Rust the Elbow
Apart from the factors such as coating variety, coating quality and construction condition, the surface treatment of elbow has an effect on the service life of the coating, which accounts for about 50...
ERW Straight Seam Steel Pipe is One of the Important Welding Processes
1. The welded pipe is made of steel plate welded by high-frequency electric resistance welded pipe (ERW welded pipe), straight seam electric welded pipe (LSAW), spiral welded pipe.In electrical engine...
