The welded steel pipe is also called a welded pipe. It is a steel pipe made of steel plate or steel belt and welded after curling.Welding steel pipe production technology is simple
The straight seam steel pipe is a general name of high -frequency straight seams, buried arc straight seams, straight welding stitches, and pipeline straight seams. The high -frequ
The welding process of straight seam can be divided into resistance welding straight steel pipes and buried arc welded straight seam steel pipes. Among them, resistance welded stra
In order to control the quality of straight welded pipes in order to safely carry out production operations, it is also an inevitable element of ensuring the personal safety of the
The pre -welding preparation of galvanized steel is the same as the general low -carbon steel. It should be noted that the size of the slope and the nearby galvanized layer should
According to the welding method, it can be divided into arc welded pipes, high -frequency or low -frequency resistance welded pipes, gas welding pipes, furnace welding pipes, and B
1. The power supply with vertical characteristics is used, and the positive polarity (welding wire is connected to the negative pole) during DC. 2. Stainless steel steel pipes are
The spiral tube is a saw section of the steel plant tube, and then heated in the ring furnace-perforation-fixed diameter-school straight-cooling-drama head-packaging becomes a qual
1. Because there is fat on the outer tube wall of the base tube, the fat on the wall of the steel pipe will increase the appearance tension, and the pickling steps before galvanize
The standard name of the hot -dip galvanized steel pipe product is "low -voltage fluid transportation of hot -dip galvanized welding steel pipe". It is the inner and oute
Welding technology adopted by straight welding steel pipes: The use of small specifications can avoid stress corrosion, thermal cracks and deformation, and the welding welding volu
Galvanizing (Galvanizing) is also called hot -soaked zinc and hot -dip galvanizing: It is an effective metal anticorrosive method, which is mainly used for metal structure faciliti