Industry News
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Advantages of straight seam steel pipes and steel structures applications
Straight seam steel pipe is a steel pipe welding process that is opposite to spiral steel pipe. The welding process of this kind of steel pipe is relatively simple, the cost of welding is relatively low, and it can achieve high efficiency during production, so it is relatively common in the marke...Read more -
20Cr precision steel pipe has superior performance
As a high-quality steel pipe material, 20Cr precision steel pipe has good processing performance and high strength and wear resistance and is widely used in mechanical processing and automobile manufacturing fields. Let us take a closer look at the relevant knowledge of 20Cr precision steel pipes...Read more -
What issues should we pay attention to when welding galvanized steel pipes
1. The premise must be polished The galvanized layer at the welding joint must be polished off, otherwise, bubbles, trachoma, false welding, etc. will occur. It will also make the weld brittle and reduce its rigidity. 2. Welding characteristics of galvanized steel Galvanized steel is generally co...Read more -
What precautions should be taken during the processing of channel steel
During the processing of channel steel, some important matters need to be paid attention to ensure processing quality and operating safety. Here are some things to note: 1. Safe operation: Before performing channel steel processing, you must be familiar with and comply with the relevant safety op...Read more -
Painting construction of pressure steel pipe walls of large-diameter internal and external plastic-coated steel pipes
1. Spray painting construction procedures: Manually remove oil stains and welding slag burrs on the pipe wall → sandblast and rust removal Sa2.5 level/Ra60-100μm → spray paint according to the drawing requirements → Quality inspection → Acceptance. 2. Spray painting construction process requireme...Read more -
What are the factors that cause horizontal stripes in spiral seam submerged arc welded steel pipe
First of all, it may be due to the stress of spiral submerged arc welded steel pipes. That is, the residual stress and welding stress after the steel pipe is formed. Secondly due to the presence of hydrogen. For example, the flux is not dried enough, the preheating temperature is insufficient pre...Read more