Mold and production process of gas-assisted electroplated product

Abstract

The invention relates to a mold and a production process of a gas-assisted electroplated product. The mold comprises a female mold and a male mold matched with each other; a male mold insert is mounted on one side of a molding cavity at the upper end of the male mold; a gas needle is vertically mounted in the male mold insert; the head part of the gas needle extends into the molding cavity; a ventilation hole is vertically formed in the middle part of the gas needle; the upper end of the ventilation hole communicates with the molding cavity, and the lower end of the ventilation hole communicates with a gas way formed in the male mold; a sprue is formed in an L-shaped gap in one side of the male mold insert; and one end of the sprue is connected with the molding cavity. A glue inlet is subjected to thickness and glue reduction to effectively prevent gas marks and punching marks on the glue inlet. An intake position is selected at a most sharp end of a product, that is, at one side of a product sharp end forming part, so that the punching marks generated on the surface of the product due to feeding inert gas in the molding cavity of the mold are prevented; and the shape of an intake port facilitates to simplify subsequent hot melting process and keep gas pressure of the product so as to prevent shrinkage of the product. A hot melting plug and the product are convenient to position, so that the hot melting is simpler.

Description

technical field [0001] The invention relates to the technical field of production of gas-assisted electroplating products, in particular to a mold for gas-assisted electroplating products and a production process thereof. Background technique [0002] Gas-assisted electroplating products are obtained by surface electroplating after the gas-assisted process of the product is formed. During this process, a series of problems will occur in the injection molded parts, such as shrinkage, air marks, and unreasonable selection of air intake methods and positions, which may easily cause product surface damage. Defects, as well as the hot melt process before the product is electroplated. At present, most of the methods to solve the product shrinkage are to increase the gas pressure, but increasing the gas pressure will cause the product to flash. During the hot-melt process, because the shape and method of the hot-melt plug are not good, it will cause difficulty in hot-melt. Conte...

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Problems solved by technology

[0002] Gas-assisted electroplating products are obtained by surface electroplating after the gas-assisted process of the product is formed. During this process, a series of problems will occur in the injection molded parts, such as shrinkage, air marks, unreasonable selection of air intake mode and position, which may easily cause product surface damage. Defects, as well as the hot melt process before the product is electroplated

At present, most of the methods to solve the product shrinkage are to increase the gas pressure, but increasing the gas pressure will cause the product to flash

During the hot-melt process, because the shape and method of the hot-melt plug are not good, it will cause difficulty in hot-melt

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