Product Information
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What are the heat treatments of stainless steel welded pipes
During the production process of stainless steel welded pipe, intermediate heat treatment and finished heat treatment can be carried out. Because a bright surface without oxidation can be obtained, the traditional pickling process is canceled. The use of this heat treatment pr...Read more -
Is there any difference between HFW steel pipe and ERW steel pipe
The difference between ERW steel pipe (straight seam electric resistance welded steel pipe) and HFW steel pipe (high frequency welded steel pipe) is mainly the principle. As the name implies, resistance welding is a method in which pressure is applied through electrodes after ...Read more -
Several common anti-corrosion processes for spiral steel pipe anticorrosion
Anti-corrosion spiral steel pipe plays an important and different role in people’s daily life. Anti-corrosion spiral steel pipe generally refers to the use of special technology to treat ordinary spiral steel pipe with anti-corrosion treatment, so that the spiral steel p...Read more -
Thick-wall straight seam steel pipe production process and content of inspection standards
Thick-walled straight seam steel pipe is a steel pipe made by rolling the long steel strip of the specification into a round pipe through a high-frequency welding unit and welding the straight seam. The shape of the steel pipe can be round, square or irregular, depending on th...Read more -
Several common defects and effects of straight seam steel pipes
1. How does the gnawing of straight seam steel pipe happen? What is the effect on welded pipes? The gnawing edge of the straight seam steel pipe usually occurs on the slitting strip coil. The gnawing edge of the straight seam steel pipe is a jagged appearance at the edge of th...Read more -
Stages and standard parameters of mechanical expansion process for large diameter steel pipes
The stages of the mechanical expansion process of large-diameter steel pipes: The steel plate is first pressed into a U shape in the forming die, and then pressed into an O shape, and then internal and external submerged arc welding is performed. After welding, the diameter is...Read more -
Maintenance method of large diameter straight seam steel pipe
In the process of manufacturing straight seam steel pipes, straight seam steel pipe manufacturers need to have very good control of the extrusion force. This is because, during the welding process, when the temperature of the edges of the two tube embryos reaches the welding t...Read more -
How to solve the phenomenon of spiral steel pipe “goose head bend”
If the large-diameter spiral steel pipe is processed to a certain length, there must be bending, which is a phenomenon and situation that is often encountered in steel pipes. The large-diameter spiral steel pipe is commonly called “goose head bend” due to the uneve...Read more -
Surface treatment of thick-wall straight seam steel pipe
The uniformity of the pipe wall of the thick-walled straight seam steel pipe will directly affect the post-processing parts. The pipe wall of the thick-walled straight seam steel pipe cannot be controlled, and the overall steel pipe cannot be strictly controlled. Small and med...Read more