Method for mfg. aluminium alloy wheel hub

A technology of an aluminum alloy wheel hub and a manufacturing method, which is applied to the manufacturing field of the aluminum alloy wheel hub, can solve the problems that the density and strength of the aluminum alloy wheel hub cannot be further improved, the investment cost of low-pressure casting equipment is high, and the power of the hydraulic pump is large, and the equipment investment cost is reached. and maintenance costs are reduced, surface treatment workload is small, and energy consumption is small.

Inactive Publication Date: 2007-04-18
黄伟锋
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

But its disadvantage is that the investment cost of low-pressure casting equipment is high. At present, the investment of a low-pressure casting equipment for aluminum alloy wheels is about 2 million yuan.
Due to the pressure limit of equipment such as holding furnace and liquid riser, the density and strength of low-pressure cast aluminum alloy w

Method used

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  • Method for mfg. aluminium alloy wheel hub
  • Method for mfg. aluminium alloy wheel hub
  • Method for mfg. aluminium alloy wheel hub

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Embodiment Construction

[0021] As shown in Figure 1: the manufacturing method of the aluminum alloy wheel hub of the present embodiment, comprises the following steps:

[0022] 1. Heat the aluminum alloy material to make the aluminum alloy material melt;

[0023] 2. The molten aluminum alloy material is poured into the casting mold from the gate of the casting mold. There is a feeding allowance area in the casting mold, and the molten aluminum alloy material fills the casting mold under the action of gravity;

[0024] 3. After the molten aluminum alloy material fills the casting mold, the molten aluminum alloy material is left in the feeding allowance area, and external pressure is applied to the feeding allowance area, and the external pressure exerts pressure on the molten aluminum alloy in the casting mold;

[0025] 4. Cool the casting mold and the aluminum alloy in the casting mold to form the rough blank of the wheel hub;

[0026] 5. Process the rough blank of the wheel hub to make the finished...

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Abstract

A technology for casting an Al-alloy wheel hub includes such steps as smelting Al alloy, pouring the molten Al alloy into a mould with a shrink allowance region, applying an external pressure to said shrink allowance region, and cooling. Its product has high strength.

Description

Technical field: [0001] The invention relates to a method for manufacturing an aluminum alloy wheel hub. Background technique: [0002] At present, domestic aluminum alloy wheels are usually manufactured by gravity casting or low pressure casting. [0003] Gravity casting is a casting method in which molten aluminum alloy is filled into the casting cavity by gravity to obtain castings, and the casting mold can be reused. The advantages of gravity casting are: simple process, low equipment investment cost. At present, the investment of a set of equipment for gravity casting aluminum alloy wheels is about 100,000 yuan. Since the aluminum alloy hub will shrink when it cools, generally a feed allowance area greater than 15% of the workpiece weight should be reserved in the gravity casting mold. The aluminum alloy material in the feed allowance area can compensate for the cooling of the aluminum alloy hub. Shrinkage during solidification. And remove the feeding allowance area...

Claims

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Application Information

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IPC IPC(8): B22D27/13B22D21/04B22D18/04
Inventor 黄伟锋项振双
Owner 黄伟锋
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