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...
Analysis of Factors Affecting Welding Quality of High Frequency Welded Pipe
The factors affecting the welding quality of high-frequency welded pipes mainly include the following aspects:
(1) Welding pressure
It is one of the main parameters of the welding process and affects ...
Advantages of Spiral Pipes
Spiral pipe has the following advantages:
(1) Steel pipes of the same width can be used to produce steel pipes of different diameters. In particular, large diameter steel pipes can be produced from bi...
