Semi-solid die-casting device and method for sheet aluminum alloy profiles

By designing the long-shaped feed port and two-stage neck structure in the die-casting molding device of aluminum alloy profiles, the problem of uniform distribution of aluminum alloy paste in the mold cavity is solved, and the density and consistency after molding is improved. Avoid perforation.

CN118385521BActive Publication Date: 2025-01-14GUANGZHOU ZHONGSHAN FASTENER CO LTD +1
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Patent Information

Application Number
CN202410628737.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-05-21
Publication Date
2025-01-14
Estimated Expiration
2044-05-21

AI Technical Summary

Technical Problem

During the die-casting process of aluminum alloy profiles, semi-solid aluminum alloy paste is difficult to be evenly distributed inside the mold cavity, resulting in inconsistent density after molding and even possible perforation problems.

Method used

A semi-solid die-casting molding device for sheet aluminum alloy profiles is designed. By forming a third pair of long strip-shaped interfaces at the feed port of the mold cavity, the aluminum alloy paste can be evenly distributed and in the feed channel. Two-stage necking structures are provided in the flow channel to increase the flow rate and pressure to prevent diffusion and air discharge.

Benefits of technology

The uniform distribution of aluminum alloy paste inside the cavity is achieved, the density and consistency after molding is improved, and the problem of perforation is avoided.

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Abstract

The invention discloses a semi-solid die-casting molding device and method for sheet aluminum alloy profiles. The molding device includes an upper mold and a lower mold; a feed channel, a flow channel, and a cavity are formed between the upper mold and the lower mold; a feed port is set in the cavity; a second pairing interface and a third pairing interface are formed at both ends of the flow channel; the outer contour of the first pairing interface forms a first projection on the YZ plane, the outer contour of the second pairing interface forms a second projection on the YZ plane, and the outer contour of the third pairing interface forms a third projection on the YZ plane; the first projection falls inside the projection of the outer contour of the connection port on the YZ plane, and the second projection falls inside the first projection; the height of the third projection is less than the height of the second projection, and the width of the third projection is greater than the width of the second projection; the inner wall of the flow channel forms a curved surface that smoothly transitions from the second pairing interface to the third pairing interface. The invention enables aluminum alloy slurry to be evenly distributed inside the cavity, and the formed aluminum alloy profile has higher density and more uniform density.
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Citation Information

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