Manufacturing process of combined injection mold

Abstract

The invention relates to the technical field of mold production and discloses a manufacturing process of a combined injection mold. The manufacturing process comprises the following steps: (1) coat preparation, (2) weighing, (3) fusion, (4) material addition, (5) blending, (6) stirring, (7) thermal insulation, (8) pouring and (9) combination. According to the manufacturing process, the problems that the production cost of the injection mold is high, and the operation is troublesome in the prior art are solved. According to the scheme, different materials are sequentially added, are stirred ina vacuum environment and are subjected to an thermal insulation operation, obtained mixed liquid is poured into a mold so as to obtain an injection mold inner sleeve, the obtained injection mold innersleeve is embedded into an injection mold outer sleeve so as to obtain the injection mold, the melting and remelting operations of the materials are omitted, so that the operation is simplified, andthe production cost is lowered.

Description

technical field [0001] The invention relates to the technical field of mold making, in particular to a manufacturing process of a combined injection mold. Background technique [0002] The injection molding of engineering plastics needs to be carried out under high temperature and high pressure. The material used as the inner sleeve of the injection mold generally needs to be resistant to high temperature, high pressure, impact resistance, high hardness, and not easy to deform. In the prior art, alloy steel is generally used directly as the injection mold. The material of the inner sleeve, alloy steel needs to be made of a large amount of metal, and its cost is generally high. It needs to be made through steps such as smelting, electroslag remelting, forging and heat treatment. Slag remelting requires a lot of power and energy consumption, and the smelting needs to cast the liquid mixture into electrode rods, and cooling is required during the casting process. Electroslag re...

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Problems solved by technology

[0002] The injection molding of engineering plastics needs to be carried out under high temperature and high pressure. The material used as the inner sleeve of the injection mold generally needs to be resistant to high temperature, high pressure, impact resistance, high hardness, and not easy to deform. In the prior art, alloy steel is generally used directly as the injection mold. The material of the inner sleeve, alloy steel needs to be made of a large amount of metal, and its cost is generally high. It needs to be made through

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