321 stainless steel seamless tube

Compared with the welded stainless steel pipe, the performance of the stainless steel seamless pipe is more good, and the welding and other steps can be reduced in the process of use, and the effect of use is not reduced. Stainless steel seamless pipe has several production methods?

1, cold processing

Stainless steel is 50 to 80 percent, using cold processed products. There are basically three kinds of low processing technology. Cold-processed stainless steel seamless pipes are roughly cold rolling and co-production skills, and then cold as the main supplement cold. The advantages of Kuhl rolling technology are that the stainless steel seamless pipe is of good quality, the steel pipe wall thickness is of high precision, the surface quality is relatively good, and the cold is to ensure the outer diameter of the steel pipe. Cooling machine, cooling machine high speed, high precision, long line degree, multi-line direction development. Modern coolers, large diameter reduction and large wall reduction are completed, and 80% of the deformation is completed. Cooling wall supplement specifications and operating outside diameters, select different varieties and specifications to meet the selection.

2. Hot rolling

In China, stainless steel seamless pipe in the white spread, choose two roller type inclined piercing machine, not only the general OSI stainless steel, not easy to deform two-phase stainless steel seamless pipe and high temperature alloy can also be mass produced by roller inclined hole machine. Choose two drum type cone drum machine, the type of iron produced, stainless steel seamless pipe there are several production methods? The defects of the wool surface are the defects of the surface, the internal fractures are less, and the hair wall produced together is thinner, and the machine of various pipes reduces the cold road by one step, the productivity and the yield rate are moving forward, and the economic benefits are significantly increased.

3. Hot kneading

Thermal technology is the main production process of stainless steel seamless pipe. Under this optimal condition, the stainless steel seamless pipe has good surface quality and metallographic structure, and has deformation ability and thermal aberration ability. By improving the vertical water perforation process, the thickness of the thick wall pipe can reach 5 to 7 percent. The casting mold of the casting machine is easily interchangeable with the manufacturer. It can be produced on a small scale. Can produce various specifications of stainless steel pipe. Especially suitable for the production of hard high alloy steel.