The key to the long life of die casting die
1. High quality mold material
2. Reasonable design of die wall thickness and other die sizes
3. Use the insert as much as possible
4, the possible selection of a large R angle under the possible conditions
5. The distance between the cooling water channel and the surface and the corner must be large enough
6. Stress tempering should be removed after rough machining
7. Correct heat treatment, quenching and cooling must be fast enough
8, thoroughly grinding and removing the EDM metamorphic layer
9. Non highly polished surface
10. The mould surface should be treated by oxidation
11. If nitriding, the layer can not be too deep
12. Preheat the mold to the recommended temperature in the correct way
13. The slow speed of the hammerhead should be used for 5~10 pieces of die-casting
14. To minimize the temperature of aluminum liquid on the premise of getting the qualified products
15. No high injection rate of aluminum
16, ensure that the mold is properly cooled, the temperature of the cooling water should be kept at 40~50 C
17, temporary shutdown, the cooling water should be reduced and the cooling water should be reduced to avoid the heat shock of the die when the machine is reopened.
18. When the surface of the model is at the highest temperature, the coolant should be closed
19, but more than the spray demoulding agent
20. Stress tempering after a certain number of die-casting