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What is the difference between the structure of die casting mold and plastic mold

What is the difference between the structure of die casting mold and plastic mold

(Summary description)The injection pressure of the die-casting mold is large, so the template is required to be relatively thick to prevent deformation

What is the difference between the structure of die casting mold and plastic mold

(Summary description)The injection pressure of the die-casting mold is large, so the template is required to be relatively thick to prevent deformation

1. The injection pressure of the die-casting mold is large, so the template is required to be relatively thick to prevent deformation
2. The gate of the die-casting mold is different from that of the injection mold, and the high pressure of the split cone is required to decompose the flow.
3. The die-casting mold core does not need to be quenched, because the temperature in the mold cavity exceeds 700 degrees during die-casting. Therefore, each molding is equivalent to quenching once. The cavity will become harder and harder. The general injection mold should be quenched to above HRC52.

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4. Die-casting molds generally need nitriding in the cavity to prevent the alloy from sticking to the cavity.
5. Generally, the die-casting mold is relatively corroded, and the outer surface is generally blued.
6. Compared with the injection mould, the fitting clearance of the movable fitting part (such as the core-pulling slider) of the die-casting mould is larger, because the high temperature of the die-casting process will cause thermal expansion. If the gap is too small, the mold will be stuck.
7. The parting surface of the die-casting mold has higher requirements, because the fluidity of the alloy is much better than that of the plastic. It is very dangerous for the high temperature and high pressure material to fly out of the parting surface
8. The injection mold can be exhausted by the thimble, the parting surface, etc., and the die-casting mold must have an exhaust slot and a slag collection bag (collect the cold material head).

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