Acceptance check of raw materials for the through-hardened stainness steel balls is important
Through-hardened stainness steel balls are a special type of steel. If severe segregation remains in the raw material, it is difficult to homogenize the structure by means of heat treatment.Therefore, no matter how good the heat treatment is performed, better performance will not be obtained. Therefore, the acceptance of its raw materials is very important.
When referring to relevant materials, it is also necessary to consider that the size effect is different from the field operating conditions, otherwise an error will occur.In particular, the data obtained from small samples in the laboratory may not be suitable for the parts in the field. For the data such as creep rupture or impact value, the sample selection method and the size of the workpiece have a great influence. Of course, the data itself is inevitably subject to errors.
Therefore, using only one data to determine the performance it needs will cause a large error.The heat treatment can be carried out correctly only on the basis of the basic concept of heat treatment and the combination of field experience.
The heat treatment is, in the final analysis, heating and cooling. If the heat is not properly measured and the temperature is controlled, a good heat treatment effect is not obtained.
The quality of the heat treatment of the hardened stainless steel ball must be strictly controlled, so it is necessary to know which process should be used and the point of quality assurance.