Die-casting die for rear plate of right front longitudinal beam

Through the horizontal die-casting method and complex flow channel design, the pressure loss and temperature drop problems caused by the single flow path of the molten metal were solved, and high-precision, low-defect die-casting of the rear plate of the right front longitudinal beam was achieved, thereby improving the density and mechanical properties of the product.

CN120679971APending Publication Date: 2025-09-23GUANGDONG WENCAN FOUNDRY RES INST CO LTD
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Patent Information

Application Number
CN202511112147.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-08
Publication Date
2025-09-23

AI Technical Summary

Technical Problem

When the existing die-casting mold is used to manufacture the rear plate of the right front longitudinal beam, the metal liquid flow path is single, resulting in excessive pressure loss and rapid temperature drop, resulting in defects such as undercasting and cold shut, making it difficult to meet the requirements of high precision and high reliability.

Method used

The die-casting method is placed horizontally with respect to the direction of product use, combined with the design of horizontal and vertical bend runners and double-diversion gate runners. The first and second overflow exhaust runners are set up, and a vacuum valve system is equipped to ensure that the molten metal fills the mold cavity from different positions and directions and fully exhausts the gas.

Benefits of technology

It reduces the flow resistance of molten metal, significantly reduces defects such as undercasting and cold shut, improves the density and mechanical properties of the product, and meets the high-precision die-casting needs of thin-walled special-shaped structures.

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Abstract

The invention relates to the technical field of die-casting dies, and discloses a die-casting die for a right front longitudinal beam rear plate, which comprises a fixed die frame, a fixed die core, a movable die frame, a movable die core, a core-pulling sliding block and a core-pulling driving structure, and a die cavity comprises a sprue runner, a rear plate body runner, a front plate body runner, a transverse extending and longitudinal turning runner, a first overflow exhaust runner and a second overflow exhaust runner, the sprue runner comprises a longitudinal flow main pouring section, a first flow dividing section and a second flow dividing section, the first flow dividing section is communicated with the left end of the rear plate body runner, and the second flow dividing section is connected with the bottom of the transverse-extending longitudinal-turning runner. A die-casting mode which is transverse to the use direction of a product is adopted, and the design of the transverse-extending and longitudinal-turning runners is combined, so that a cavity flowing path corresponding to the longitudinal-extending curved wall is smoother, the flowing resistance of molten metal in the filling process is reduced, and the die-casting requirement of a right front longitudinal beam rear plate of a thin-wall special-shaped structure is better met; the strength and the stability of connection among the lower beam plate body, the upper beam plate body and the longitudinal extending curved wall are guaranteed.
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