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Method for manufacturing high-strength light alloy products with hot tearing tendency

A high-strength, light alloy technology, applied in the field of manufacturing high-strength light alloy products with a tendency to hot cracking, can solve the problems of easy thermal cracking, aluminum-silicon alloy hubs that cannot meet its requirements, etc., achieve small deformation and solve hot cracking , high-strength effect

Pending Publication Date: 2018-03-06
荣泽发动机零部件(常熟)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, the high-speed automobile hub requires the fast braking function, so the material of the hub needs to use a light alloy with fast heat dissipation and high strength. The aluminum-silicon alloy hub cannot meet its requirements, and high-strength aluminum-copper alloy casting is used.
However, some light alloy products are prone to thermal cracking and cannot be cast with traditional metal molds, especially thin-walled products

Method used

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Examples

Experimental program
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Embodiment Construction

[0019] Below in conjunction with embodiment the present invention is described in further detail:

[0020] A method of manufacturing a high-strength light alloy product prone to hot cracking, the method comprising the steps of:

[0021] 1) Mold making: According to the casting structure and technical requirements, the mold pieces are analyzed, the mold cavity is designed, and the mold is made according to the characteristics of the lost foam casting;

[0022] 2) Mold beam shape design: analyze the pouring process, design the mold beam shape, and ensure that the top of the mold beam has a processing allowance for setting process ribs. The surface is close to the lower surface of the outer edge of the process rib, and the center of the mold bundle is evenly distributed with multiple runners along the circumference;

[0023] 3) Bundle production: After loading the mold into the die forming machine, inject the pre-foamed beads into the die forming machine to form, cool and hold t...

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Abstract

The invention discloses a method for manufacturing high-strength light alloy products with hot tearing tendency. The method comprises the following steps: firstly, template component pieces are analyzed according to casting structures and technology condition requirements; molding cavities of molds are designed and manufactured; a pouring process is analyzed; shapes of mold bundles are designed; the mold bundles are manufactured; and then, finished products are finished through sand filling compaction, smelting and refining of alloy liquid, pouring, casting obtaining and primary machining of castings. The method effectively solves the hot tearing problems of the castings, and meanwhile, guarantees the alloying effects of the castings; and the manufactured casting products are low in deformation, excellent in quality and high in strength.

Description

technical field [0001] The invention relates to the field of casting, in particular to a method for manufacturing a high-strength light alloy product prone to thermal cracking. Background technique [0002] Automobile lightweight is a major task for my country and the world's automobile industry. Some high-strength light alloys continue to replace ferrous metal parts. For example, the high-speed automobile hub requires the function of fast braking, so the material of the hub needs to be a light alloy with fast heat dissipation and high strength. The aluminum-silicon alloy hub cannot meet its requirements, and high-strength aluminum-copper alloy casting is used. However, some light alloy products are prone to thermal cracking and cannot be cast with traditional metal molds, especially thin-walled products. Contents of the invention [0003] The object of the present invention is to provide a method for manufacturing high-strength light alloy products prone to hot cracking,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/04B22C9/08
CPCB22C9/04B22C9/082
Inventor 沈筱娴疏达郑灵森
Owner 荣泽发动机零部件(常熟)有限公司
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