News
-
Quality inspection, pipe cutting, and connection methods of stainless steel water supply pipes
1. The quality inspection of stainless steel water supply pipes can be summarized as follows: check whether the inner and outer walls of the pipe are smooth and flat, whether there are cracks and trachoma, whether the welding parts are smooth, and whether there are signs of depression. At the sam...Read more -
Heating requirements for spiral steel pipe
Before the steel is hot rolled, heating the raw material not only improves the plasticity of the metal, reduces the deformation force, but also facilitates rolling. In addition, during the heating process of steel, some structural defects and stress caused by Tao ingots can also be eliminated for...Read more -
Cause Analysis of Continuous Pores and Iron Beans in Spiral Submerged Arc Welded Steel Pipes
If there is no influence of factors such as the extrusion thickness of the forming vertical roll on the shape of the edge of the plate, the ideal forming seam state 3, but due to the extrusion of the forming roll or the improper pressure of the crimping roll, the disc shear blade is not perpendic...Read more -
Galvanized steel pipe painting production process
A continuous galvanized steel pipe painting production process and its equipment, the process includes the following steps: passivation step, cleaning step; painting step; curing step, before the painting step is provided with a drying preheating step, and drying The intervening heat temperature ...Read more -
Application of ERW straight seam welded steel pipe and straight seam double-sided submerged arc welded steel pipe in urban gas pipeline
City gas pipelines include main gas transmission pipelines, distribution pipelines, user introduction pipes, and indoor gas pipelines, each of which has a different purpose. According to the different gas transmission pressure, it can be divided into low pressure (not higher than 0.01MPa), medium...Read more -
30 years anniversary activity in Bestar Steel
30 years anniversary activity in Bestar Steel. Here is the first part in Beijing. to be continued. Here is the part of our member in the Beijing station. For the next part, we wait and see more activities.Read more