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Aluminum wheel extrusion casting process and device thereof

一种挤压铸造、车轮的技术，应用在制造工具、铸造设备、铸造成型设备等方向，能够解决充型速度难以控制平稳、辋气孔缺陷比例多、易发生卷气等问题，达到延伸率提升、改善材料力学性能、屈服强度提升的效果

Active Publication Date: 2018-07-03
CITIC DICASTAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the filling process of aluminum liquid, the aluminum liquid is driven by the hydraulic pressure of the extrusion rod, the filling speed is difficult to control and stable, and it is easy to cause gas trapping and other phenomena, especially the aluminum wheel rim has a large proportion of air hole defects, which seriously affects the yield

Method used

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  • Aluminum wheel extrusion casting process and device thereof

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Embodiment Construction

[0013] A extrusion casting process for aluminum wheels, using a U-shaped tube 8, the aluminum liquid is poured into the material barrel of the U-shaped tube 8 on one side under the control of the quantitative pump 13, and injected into the cavity from the bottom of the mold through the U-shaped tube 8, and the U-shaped The liquid surface of the mold tube 8 poured into the aluminum liquid end is equal to the highest end of the aluminum wheel casting in the mold cavity, that is, the filling of the aluminum liquid is completed.

[0014] A pressure barrel 10 is set above the barrel of the U-shaped tube 8 at the pouring end of the aluminum liquid to apply pressure to the aluminum liquid, so that the aluminum liquid in the mold cavity crystallizes and solidifies layer by layer under high pressure; At the same time of high pressure, the clamping ring 5 is set outside the side mold of the mold to apply force to the aluminum wheel casting, causing the solidified casting shell to undergo...

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Abstract

The invention discloses an aluminum wheel extrusion casting process and a device thereof. A U-shaped pipe is adopted to realize injection of molten aluminum into a molding cavity of a mold at a low-pressure lower bottom part, so that the mold filling is stable, and the quality problem of the rim air hole defect caused by extrusion casting is solved; through application of a mold locking ring, therim extrusion deformation effect is improved; and through a secondary pressing process of center parts of aluminum wheels, internal structure dendritic crystal gaps of aluminum wheel castings are reduced, the yield strength and the ductility index in the mechanical performances of casting materials are improved, and necessary technical basis is provided for overall lightening of the aluminum wheels.

Description

technical field [0001] The present invention relates to the field of casting. Background technique [0002] At present, the traditional extrusion casting of aluminum wheels uses aluminum liquid directly into the central quantitative barrel, and the aluminum liquid is pushed into the mold cavity from bottom to top through the extrusion rod, and then high pressure is applied to cause plastic deformation of the solidified metal shell , the unsolidified metal is subjected to isostatic pressure, and high-pressure solidification occurs at the same time, and finally the finished casting is obtained. During the filling process of aluminum liquid, the aluminum liquid is driven by the hydraulic pressure of the extrusion rod, the filling speed is difficult to control and stable, and it is easy to cause gas trapping and other phenomena, especially the aluminum wheel rim has a large proportion of air hole defects, which seriously affects the yield . Contents of the invention [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D18/02
CPCB22D18/02B22C9/28B22D18/04B22D27/11B22D35/04B22D25/02
Inventor 杜德喜李昌海赵永旺
Owner CITIC DICASTAL
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