Die-casting die

By designing the material channel and exhaust groove structure in the die-casting mold, the problems of molten metal eddy current and impurity accumulation are solved, high-quality molding and aesthetics of the workpiece are achieved, and production costs are reduced.

CN223394289UActive Publication Date: 2025-09-30NINGBO MINGXIN ELECTRONICS MACHINERY MFGCO
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Patent Information

Application Number
CN202422854019.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-09-30
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

In the existing die-casting process, the eddy current of the metal solution prevents bubbles and impurities from being discharged in time, affecting the density and strength of the workpiece. The side injection method requires additional fine processing, which increases costs and prolongs the production cycle.

Method used

A die-casting mold is designed with a feed channel structure and exhaust components. The molten metal enters the feed channel through a feed sleeve, disperses the initial kinetic energy in the flow direction, and enters the mold cavity evenly. Impurities and air are discharged through the exhaust groove to avoid the formation of vortexes and material heads.

Benefits of technology

Improve workpiece quality, reduce the need for fine processing, reduce production costs, and ensure workpiece beauty and consistency.

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Abstract

The utility model relates to the technical field of die-casting processes, and provides a die-casting die which comprises a fixed die assembly, a movable die assembly and a movable die assembly. The movable mold assembly abuts against the fixed mold assembly to form a product cavity; the material channel is provided with a first part, a second part and a third part; the exhaust assembly is provided with a first exhaust groove and a second exhaust groove; during liquid injection, a metal solution flows into the first part in the material channel from the feeding sleeve and then flows into the second part in the direction perpendicular to the first part, then the metal solution flows into the third part from the second part in the direction parallel to the first part, and finally, the metal solution flows into the bottom from the third part along the top of the product cavity and flows into the third part along with the entering of the metal solution. Air and impurities in the product cavity are discharged into the first exhaust groove from the bottom, upwards flow into the second exhaust groove and are finally discharged to the outside; the mode of injecting the metal solution from the top of the product cavity reduces vortex formation, and no stub bar is formed on the side face of the workpiece.
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