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 :What are the types of trenchless repair technologies for steel pipelines Update : 2022-04-01 View(s) : 811
There are 3 categories of trenchless repair technologies for steel pipelines (including more than 10 process technologies) First is to use the resin curing method to form a new drainage steel pipeline inside the steel pipeline , such as CIPP, on-site curing, and other processes; The secon...
Keywords :Application of spiral steel pipe in the urban pipeline Update : 2022-03-30 View(s) : 809
Spiral steel pipe is usually used in urban drainage pipelines. The use of spiral steel pipes in urban drainage pipeline systems is the comprehensive arrangement of urban water supply, water supply, water use, drainage, sewage treatment, and other pipeline systems and their various components w...
Keywords :Analysis of Corrosion Causes of Steel Pipes Update : 2022-03-28 View(s) : 922
Corrosion of steel pipes is mainly divided into two categories: internal corrosion and external corrosion. External corrosion is mainly due to the corrosion caused by the connection between the pipeline material and the external environment such as soil, seawater, atmosphere, and other corr...
Keywords :The welding process of thick-walled steel pipe Update : 2022-03-24 View(s) : 865
Welding method: When welding thick-walled steel pipes , first clean the oil, paint, water, rust, etc. of the welding joints, and then open the grooves according to the wall thickness. It is the gap of the product, which is generally 1-1.5 times the diameter of the electrode or wire. If the groove...
Keywords :What is the difference between the surface processing of spiral steel pipe and stainless steel pipe Update : 2022-03-22 View(s) : 1076
Let's first talk about the original surface of the stainless steel tube: NO.1 The surface that is subjected to heat treatment and pickling after hot rolling. Generally used for cold-rolled materials, industrial tanks, chemical industry equipment, etc., the thickness is thicker from 2.0MM-8.0MM. Dull...