Stainless steel tube production process is what?
Sep 08, 2022
Stainless steel tube production process brief description:
1. Waste pipe (pipe blank) :
The raw material of stainless steel round tube blank used in production is called waste tube.
2. Pipe cutting:
When producing stainless steel pipe, it is necessary to cut the head and tail, including cutting the flat head and intermediate products at both ends of the waste pipe and the finished product. Steel pipe waste will be produced when cutting steel pipe.
3, pickling, oil removal:
To remove the oxide sheet produced by high temperature heating on the surface of stainless steel pipe, so as to meet the requirements of steel pipe production and finished products. The engineering acid is mixed acid (HNO3+HF).
4. Inspection and grinding:
Check and grind the defects of stainless steel seamless steel pipe to clean up the unfavorable defects.
5. Cold drawing (rolling) :
The steel pipe is deformed to reach the required specifications, and the steel pipe of different specifications needs to undergo pickling and solution treatment for many times back and forth.
6, solid solution:
The stainless steel seamless tube produced metal work hardening after cold drawing (rolling). In order to eliminate work hardening and facilitate reprocessing, the broken grains should be recovered by solution treatment. At the same time, the mechanical properties of the finished steel pipe are guaranteed.
7. Straightening:
After solution (annealing) treatment of steel pipe due to thermal deformation of steel pipe bending, in order to reach the factory straightness of steel pipe standards to straighten the steel pipe.
8. Lubrication:
Before the steel pipe is cold-drawn, in order to avoid direct friction between the metal of the steel pipe and the metal of the tube drawing die during the deformation process, a layer of lubricant made of high temperature naji grease and lime is coated on the inner and outer surface of the steel pipe after drying to form an isolation layer.
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