Cryogenic Health Treatment which is also known as cryotherapy is a cold therapy in which low temperature is used for treating the patient. It is a popular Japanese technique which is being adopted in different parts of the country for treatment of various health problems.
The forming technology methods for manufacturing large-diameter straight seam steel pipes include UOE forming method, row roll forming method (CFE), CE forming and so on.
Diameter expansion has become a very important process in the production of large-diameter longitudinally welded pipes that can ensure the finished pipe.
The process: use mechanical expansion to divide the diameter section of the side portion to radially expand along the pipe in a stepwise manner along the longitudinal direction, and plastic deformation is achieved during the entire length of the pipe section.
Let me introduce to you the method of treating heat treatment of straight seam steel pipe.First of all, the mold planning must be reasonable, the thickness should not be too large, the shape should be symmetrical, the deformation rules should be mastered for the larger deformation mold, and the processing allowance should be reserved.
For some messy precision molds, heat treatment, aging heat treatment, nitriding heat treatment and quenching and mold control accuracy can be selected in advance.
When repairing defects such as blisters, pores, abrasion, etc., cold welders and other correction technology equipment with low thermal influence are used to avoid deformation during the repair process.
