合肥精密零件加工和合肥精密零件加工厂推荐东莞德文电子科技

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Internal model overview

In order to save material, make the process convenient and simple, and ensure the mold have enough life, a set of mould should have internal model. Internal model is in addition to the outer part of the die set and other features, and internal model on general embedded in the die set board.

Internal model generally adopts cold working steel, hot steel, high speed steel or plastic die steel and other alloy materials. Other such as alloy steel, aluminum alloy, graphite and other new materials are used.

On large mould in order to streamline mould specification, general model cavity directly on the upper die template.

Some of the internal model design requirements.

With sufficient strength, stiffness, with plastic melt under high pressure.

With sufficient rigidity and wear resistance to withstand material flow of grinding; Usually within the mold material hardness should be above HRC35. Special requirements for occasions are HRC50 - more than 52.