Application method of precision and complex mold for heat treatment

There are many precise and complicated molds in the heat-treated molds, so it is necessary for the processor to have the correct method.
     1. Reasonable selection. For the molds with complex density, micro-deformation abrasive steel with good quality should be selected, abrasive steel with severe segregation of carbide is forged and quenched and tempered, and solid or double-refined heat treatment is performed on abrasive steels with large or inability to forge.
     2. The design of the mold should be reasonable, the shape is symmetrical, the deformation of the larger mold should be well grasped, and machining allowances should be reserved. Large and precise molds can adopt combined structures.
     3. This mold should be heat treated in advance.
     4. Reasonable selection of heating temperature and control temperature. Slow heating, preheating and other balanced heating methods can be adopted to reduce the heat treatment deformation of the mold.
     5. Where conditions permit, vacuum heating quenching and cryogenic treatment after quenching should be used as far as possible.
       In addition, the correct heat treatment process operation and reasonable tempering heat treatment process are also limited measures to reduce the deformation of precision and complex molds.