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 :Spiral steel pipe dredging common problems Update : 2023-07-07 View(s) : 1
When the spiral steel pipe is blocked, it will not only affect our use, but also have a certain corrosion effect on some materials inside the spiral steel pipe, so if it is not dredged in time, it will have a very bad effect after a long time. First is to wash with water and use the pressur...
Keywords :Manufacturing Technology of Large Diameter Longitudinal Submerged Arc Welded Steel Pipe Update : 2023-07-06 View(s) : 699
Large-diameter straight seam submerged arc steel pipes are mainly responsible for pipeline transportation of marine and land oil and gas, oil and natural gas, coal and ore pulp, etc., especially suitable for the "West-to-East Gas Transmission" project currently under construction in my country, ...
Keywords :Causes of rust and corrosion of spiral steel pipes Update : 2023-07-05 View(s) : 734
Because spiral steel pipes are stacked outdoors, and most of them are buried in the ground when they are in use, they are easy to corrode and rust. To ensure the smooth flow of the pipes, spiral steel pipe manufacturers must have strong corrosion resistance. Once the pipeline is corroded, it wil...
Keywords :Comparison of technical characteristics of spiral welded pipe and straight seam welded pipe Update : 2023-07-04 View(s) : 994
1. Metallurgical properties of materials Longitudinal submerged arc welded pipes are produced from steel plates, while spiral welded pipes are produced from hot rolled coils. The rolling process of the hot-rolled strip mill has a series of advantages and can obtain the metallurgical process fo...
Keywords :Steel pipe pressure processing method Update : 2023-07-03 View(s) : 855
Fundamentally speaking, the measures to prevent the formation of pores in the weld are to limit the dissolution or generation of gas in the molten pool and to exclude the gas present in the molten pool. (1) Eliminate gas sources: ①Surface treatment Before welding the steel weldment, the oxide fi...