Industry News
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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 -
Materials and characteristics of H beam steel Q355
When we talk about H-beam steel Q355, we are talking about steel with specific materials and properties. H beam steel, as a high-efficiency profile with an economical cross-section, is named after its cross-section is the same as the English letter “H”. It is widely used in large stee...Read more -
What are the maintenance methods for galvanized steel sheets
1. Prevent scratches: The surface of the galvanized steel plate is covered with a layer of zinc. This layer of zinc can effectively prevent oxidation and corrosion on the surface of the steel plate. Therefore, if the surface of the steel plate is scratched, the zinc layer will lose its protective...Read more -
Large-diameter seamless steel pipe details
Large-diameter seamless steel pipes can be divided into straight seam arc welded steel pipes and straight seam submerged arc welded steel pipes according to traditional processes. The production process of straight seam welded pipe is simple, low cost, rapid development, and high production effic...Read more -
Detail of epoxy powder anti-corrosion spiral steel pipe
TPEP anti-corrosion spiral steel pipe manufacturer, 3PE outer 3PE inner sintered epoxy composite steel pipe (also known as TPEP anti-corrosion pipe) is an upgraded product based on outer polyethylene inner sintered epoxy composite steel pipe. It is currently the most advanced buried long-distance...Read more