We know that in stainless steel processing, stainless steel is a kind of material with a variety of excellent properties, and the products made of it will have a good performance in the use effect and service life. Therefore, this kind of material is welcomed in many fields. However, if we want to process it into the products we need, it needs to deal with many kinds of craft seriously in the production process, in order to achieve the goal. Now we mainly want to know about the purpose of preheating stainless steel pipe.
The purpose of preheating treatment of stainless steel tube is to eliminate the inhomogeneity of microstructure caused by ingot and forging, improve the morphology and distribution characteristics of carbide, and make necessary preparation for the final heat treatment. In the cold milk roller, if the carbide particle size is too large, the morphology is bad or the segregation is serious, the matrix structure and hardness will be uneven after the final heat treatment, which will increase the probability of the work layer peeling off and reduce the thermal impact resistance of the cold milk roller.
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