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Preparation method of forging aluminum alloy for wheel hub swaging

An aluminum alloy, forging and spinning technology, applied in the field of aluminum alloy, can solve the problems of low mechanical properties and achieve the effects of beautiful appearance, long service life and high wear resistance

Active Publication Date: 2012-03-14
秦皇岛开发区美铝合金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The aluminum alloy wheels produced by this method are one-time casting without reprocessing, the metal texture does not change, and there is a problem of low mechanical properties.
There is a big difference in performance between the aluminum alloy wheels produced by die casting and the forged wheels produced by forging aluminum alloy casting rods.

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0031] A kind of special forged aluminum alloy for swivel hub, its composition and its weight percentage are as follows:

[0032] Si 0.705~0.795%, Mg 0.905~1.005%, Fe 0.2163%, Mn 0.0705%, the rest is Al;

[0033] Preparation method of wrought aluminum alloy:

[0034] (1) Ingredients

[0035] Si, Mg, Fe, Mn, Al are weighed and prepared according to the above weight ratio;

[0036] (2) Alloying

[0037] Put the weighed Si, Mg, Fe, Mn, Al into the smelting furnace for smelting, when the temperature reaches 750°C±5°C, stir evenly through the stirring device, and then use the metallurgical slag removal device to remove the slag, that is, Aluminum alloy liquid;

[0038] (3) Refining

[0039] Lead the molten aluminum alloy in the smelting furnace into the static furnace, then add No. 2 flux powder to the molten aluminum alloy and then refine. The amount of No. 2 flux powder added is 1.5‰ of the weight of the molten aluminum alloy;

[0040] After the refining process is complete...

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PUM

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Abstract

The invention discloses a preparation method of a forging aluminum alloy for wheel hub swaging. The forging aluminum alloy comprises 0.705-0.795 wt% of Si, 0.905-1.005 wt% of Mg, 0.2163 wt% of Fe, 0.0705 wt% of Mn, and the balance consisting of Al. The preparation method comprises the following steps: weighing and putting Al, Si, Mg, Fe and Mn in a melting furnace for melting, removing slag with a metallurgical slag removal device when the temperature reaches to 745-755 DEG C to obtain an aluminium alloy liquid; introducing the aluminium alloy liquid in a standing furnace, adding No.2 ground flux and refining, then standing the aluminium alloy liquid in the standing furnace for 30 min at the standing temperature of 735-745 DEG C; carrying out casting and molding on the aluminium alloy liquid through a hot-top casting machine, keeping the temperature of the aluminium alloy liquid within 735-745 DEG C, putting the molded aluminium alloy rods in a 800 kw homogenization furnace for homogenizing with controlling the temperature within 566-574 DEG C, keeping warm for no shorter than 8 h; putting the homogenized aluminium alloy rods in a cooling chamber, and cooling through a blower fan to obtain the forging aluminum alloy for wheel hub swaging.

Description

technical field [0001] The invention relates to a method for preparing a special forged aluminum alloy for a forged wheel hub, in particular to a method for preparing a forged aluminum alloy specially used for manufacturing an automobile forged wheel hub, and belongs to the technical field of aluminum alloys. Background technique [0002] The wheel hub is an important part of the car, and its quality directly affects the performance and aesthetics of the car. The production process of automobile wheels requires very strict requirements on the performance of the wheel materials. The produced wheels must not only have good rotational bending performance, but also have excellent impact toughness and good wear resistance. In recent years, most of the wheels of high-end cars at home and abroad are made of aluminum alloy materials. [0003] At present, automobile hubs are generally made of aluminum alloy materials through die casting. The aluminum alloy wheel hub produced by thi...

Claims

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Application Information

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IPC IPC(8): C22C21/06B22D17/00C22F1/05
Inventor 毛贻国臧立根甄跃军蔡振斌郭银河王大龙高海涛李景山赵新建杨明娟
Owner 秦皇岛开发区美铝合金有限公司
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