Industrial News
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Welding treatment of thick-walled spiral steel pipe
Thick-walled spiral steel pipe is a method of arc welding under the flux layer. It is formed by using the heat generated by the arc burning between the flux and the welding wire under the flux layer, the base metal, and the melted welding wire flux. During use, the main stress direction of thick-...Read more -
Seamless steel pipe quality inspection methods
1. Chemical composition analysis: chemical analysis method, instrumental analysis method (infrared C-S instrument, direct reading spectrometer, zcP, etc.). ① Infrared C-S meter: Analyze ferroalloys, steelmaking raw materials, and C and S elements in steel. ②Direct reading spectrometer: C, Si, Mn,...Read more -
The difference between galvanized steel pipe and hot-dip galvanized steel pipe
A galvanized steel pipe is generally called a cold-plated pipe. It adopts an electroplating process and only the outer wall of the steel pipe is galvanized. The inner wall of the steel pipe is not galvanized. Hot-dip galvanized steel pipes use a hot-dip galvanizing process, and the inner and oute...Read more -
The problem of uneven thickness of anti-corrosion coating on spiral steel pipes and how to deal with it
Spiral steel pipes are mainly used as fluid pipes and piling pipes. If the steel pipe is used for water drainage, it will generally undergo anti-corrosion treatment on the inner or outer surface. Common anti-corrosion treatments include 3pe anti-corrosion, epoxy coal tar anti-corrosion, and epoxy...Read more -
Anti-corrosion painting and development analysis of straight seam steel pipes
The performance and functions of the original color straight seam steel pipe in the specific use process fully demonstrate the operational contribution and usability. After painting and spraying white letters, the straight seam steel pipe also looks very energetic and beautiful. Now Pipe fittings...Read more -
What are the differences between the surface processing of spiral steel pipe and stainless steel pipe
Let’s first talk about the original surface of the stainless steel pipe: NO.1 The surface that is heat treated and pickled after hot rolling. Generally used for cold-rolled materials, industrial tanks, chemical industry equipment, etc., with thicker thicknesses ranging from 2.0MM-8.0MM. Blunt sur...Read more