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русскийEvaluation of Annealed Microstructure
The purpose of annealing is to reduce the hardness of the steel, facilitate machining, and also prepare the structure for subsequent heat treatment.
The annealed structure of carbon tool steel is evaluated according to the first-level rating chart of GB1298.
Carbide inhomogeneity
Cr12 type ledeburite steel contains a large amount of eutectic carbides in the structure, and the inhomogeneity of carbides has a very important influence on the performance, so the distribution of its carbides must be strictly controlled.
All in all, due to the cumbersome production objects of mold factories and workshops, and more or less single pieces and small batches, it brings certain difficulties to the formulation and management of mold production quotas. The equipment and technical quality are not the same, so when setting the quota, it is necessary to find an appropriate method to formulate an advanced and reasonable working hour quota according to the actual situation of the factory and the workshop, so as to improve the labor productivity.
