Industrial News
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Steel Tube Weld Cold Crack
Cold crack reasons: the person to be subjected to welding when a large tensile force can be easily torn in the process of cooling the welding material hardenability; welding cooling rate was too late to escape the residual hydrogen in the weld, a hydrogen atom bonded to a hydrogen molecules to a ...Read more -
How to check the quality of galvanized seamless steel pipe?
There are two types of galvanized seamless steel pipes, hot-dip galvanizing (hot-dip galvanizing) and cold-dip galvanizing (electro-galvanizing). Hot-dip galvanizing has a thick galvanized layer, which has the advantages of uniform coating, strong adhesion, and long service life. However, the cos...Read more -
What are the application fields of welded steel pipe?
Welded steel pipes are widely used in the structural parts of bicycles, motorcycles, tractors, automobiles and large buses. The pipe has a large forging coefficient, strong bending and torsion resistance, smooth surface and light weight. Variable cross-section tubes are used to make collector pol...Read more -
Treatment method for damage of parts of cold drawn welded pipe
The maintenance of cold drawn welded pipe requires regular maintenance according to the corresponding maintenance standards. Even if the working condition is good, it is necessary to carry out all-round maintenance on the welded pipe unit to fundamentally avoid mechanical failure and ensure smoot...Read more -
Identification method of welded pipe and seamless pipe
There are three main ways to identify welded pipes and seamless pipes (smls): 1. Metallographic method Metallographic method is one of the main methods to distinguish welded pipes and seamless pipes. High-frequency resistance welded pipe (ERW) does not add welding materials, so the weld seam in t...Read more -
Steel Pipe Uses in Gas Project
Steel pipe is the most widely used gas pipe project. Its main advantages are: high strength, good toughness, bearing stress, impact resistance and tight, good plasticity, easy welding and thermal processing, the wall thickness is thinner, saving metal. But its poor corrosion resistance, need to h...Read more