Welding current In the multi -wire buried arc welding of straight seam welded pipes, the welding current of all wires increases, the remaining height of the weld will increase, but
Hot -dip galvanizing is one of the most effective means to delay the environmental corrosion of steel materials. Compared with other metal protection methods, it is based on the pr
In order to improve the corrosion resistance of the steel pipe, the average steel pipe is galvanized. Galvanized steel pipes are divided into two types: hot, galvanized and electro
1. Tungsten can improve the redness and heat of the spiral steel pipe, and can improve the wear resistance of the spiral steel pipe. 2. Silicon; it can improve the hardness of the
Welding steel pipe slag is a residue left inside the weld.In theoretical analysis, the main reasons for the automatic welding seams of buried arcs are mainly the following 3 points
1. Overview of galvanized pipe In order to improve the corrosion resistance of the steel pipe, galvanized the general steel pipe. Galvanized pipes (galvanized steel pipes) are divi
The development of steel pipe production technology began in the rise of the bicycle manufacturing industry, the development of oil in the early 19th century, the manufacturing of
There are many types of spiral steel pipes produced by spiral steel pipe manufacturers. The steel pipe damage is inevitable during the loading and unloading process. The specific m
1. The geometric characteristics of the cross section of the pipe are good, the tube wall is generally thin, the section materials are distributed around the shape, the cross -sect
3PE anticorrosive steel pipe refers to the 3 -layer structure of polyolefin coating (MAPEC) external anticorrosive steel pipes. It is a commonly used anticorrosive pipe in China. A
As an important part of steel products, steel pipes are divided into two categories: seamless steel pipe (round) and welded steel pipe (board, band) due to the different manufactur
The spiral steel pipe uses a steel roll plate as the raw material, which is often squeezed warmly, and the spiral -shaped bending is formed. The spiral steel pipe made of inner and