1. Reasonable material selection. Fine quality micro-deformation grinding tool steel should be selected for the dies of pipe fittings mould with complex density, the grinding tool steel with severe carbide segregation should be subjected to forging and tempering heat treatment, and the grinding tool steel with larger or unforgeable size should be subjected to solid solution double refining heat treatment.
2. The design of pipe fittings mould should be reasonable and symmetrical in shape. The deformation rule should be mastered for larger moulds, and machining allowance should be reserved. Large and precise complex moulds can adopt combined structure.
3. The pipe fittings mould shall be heat treated in advance.
4. Reasonable choice of heating temperature and control temperature can... less