Threeway Steel Co., Ltd
E-mail: sales@srtsteelpipe.com
Address: 22nd Floor, Royal Wing Tower, Long Champ International Building, No.9 Xiangfu Road, Changsha, Hunan, China, PC: 410116Phone:0086-731-8873-9521
Keywords :Rust removal and maintenance method of straight seam welded pipe Update : 2022-06-14 View(s) : 796
The maintenance of straight seam welded pipe equipment has become a headache. Straight seam welded pipe equipment plays an important role in life and work. It is generally required that the surface of the straight seam welded pipe fittings reach a near-white level (Sa2.5). The practice has pro...
Keywords :Eddy's current non-destructive testing method for welding seam of spiral steel pipe Update : 2022-06-13 View(s) : 700
As an efficient special means of transportation, pipeline transportation has played an increasingly important role in the fields of oil and natural gas transportation. At present, domestic large-diameter transportation pipelines are mainly constructed with spiral welded steel pipes . To ensure the ...
Keywords :Three welding techniques for stainless steel welded pipes Update : 2022-06-10 View(s) : 790
Stainless steel welded pipe technology - argon arc welding Stainless steel welded pipes require deep penetration, no oxide inclusions, and as small a heat-affected zone as possible. Tungsten inert gas shielded argon arc welding has good adaptability, high welding quality, and good penetratio...
Keywords :How is the spiral seam submerged arc welded steel pipe used for anti-corrosion Update : 2022-06-09 View(s) : 663
1. Mainly use tools such as wire brushes to grind the surface of the steel. The cleaning and preheating of the spiral welded steel pipe can remove the loose or warped scale, rust, welding slag, etc. The rust removal of hand tools can reach the Sa2 level, and the rust removal of power tools can...
Keywords :What are the factors that cause horizontal stripes in spiral seam submerged arc welded steel pipes Update : 2022-06-08 View(s) : 811
The first may be due to the stress of the spiral seam submerged arc welded steel pipe . That is, the residual stress and welding stress after the steel pipe is formed. Secondly due to the presence of hydrogen. If the flux is not dried enough, the preheating temperature is not sufficient or the pr...