High impact tough alloy material containing Al, Si, Mgi used for making automobile hub and its producing method

A technology for alloy materials and automobile wheel hubs, applied in the field of metal-based functional materials and manufacturing, can solve the problems of alloy silicon segregation, affecting the impact toughness of alloys, etc., and achieve the effects of improving mechanical properties, improving yield, and preventing component segregation.

Inactive Publication Date: 2008-07-23
YUNNAN METALLURGICAL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high silicon content in its composition, the stirring and ingot casting methods are simple during processing, which can easily cause serious silicon segregation in the alloy and affect the impact toughness of the alloy.

Method used

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  • High impact tough alloy material containing Al, Si, Mgi used for making automobile hub and its producing method
  • High impact tough alloy material containing Al, Si, Mgi used for making automobile hub and its producing method

Examples

Experimental program
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Effect test

Embodiment 1

[0027] 1. First, according to the quality of industrial pure silicon 9%, aluminum-magnesium alloy 0.5%, aluminum-copper alloy 0.2%, aluminum rare earth (60%La+40%Ce) master alloy 0.2%, titanium powder 0.2%, aluminum-strontium alloy 0.03% The percentage is added to the melting furnace, and then 89.8% of the electrolytic pure aluminum liquid is added to the melting furnace;

[0028] 2. Use the high temperature (880°C) of electrolytic aluminum liquid to melt industrial pure silicon, aluminum-magnesium alloy, aluminum-copper alloy, aluminum rare earth intermediate alloy, aluminum-strontium alloy and titanium powder;

[0029] 3. When the temperature of the aluminum alloy liquid in the furnace reaches 760°C, use ultrasonic waves for homogenization treatment for 15 minutes, then let it stand for 20 minutes, and then introduce the aluminum alloy liquid into the degassing box;

[0030] 4. Use high-purity nitrogen to degas the aluminum alloy liquid in the degassing box;

[0031] 5. The...

Embodiment 2

[0035] 1. First, according to the quality of industrial pure silicon 7%, aluminum-magnesium alloy 0.4%, aluminum-copper alloy 0.05%, aluminum rare earth (60%La+40%Ce) master alloy 0.05%, titanium powder 0.08%, aluminum-strontium alloy 0.03% The percentage is added to the melting furnace, and then 92.39% of the electrolytic pure aluminum liquid is added to the melting furnace;

[0036] 2. Use the high temperature (880°C) of electrolytic aluminum liquid to melt industrial pure silicon, aluminum-magnesium alloy, aluminum-copper alloy, aluminum rare earth intermediate alloy, aluminum-strontium alloy and titanium powder;

[0037] 3. When the temperature of the aluminum alloy liquid in the furnace reaches 760°C, use electromagnetic waves for homogenization treatment for 15 minutes, let it stand for 20 minutes, and then introduce the aluminum alloy liquid into the degassing box;

[0038] 4. Use high-purity nitrogen to degas the aluminum alloy liquid in the degassing box;

[0039] 5....

Embodiment 3

[0044] 1. First, according to the quality of industrial pure silicon 12%, aluminum-magnesium alloy 1.0%, aluminum-copper alloy 0.4%, aluminum rare earth (60%La+40%Ce) master alloy 0.3%, titanium powder 0.5%, aluminum-strontium alloy 0.06% The percentage is added to the melting furnace, and then 92.39% of the electrolytic pure aluminum liquid is added to the melting furnace;

[0045] 2. Use the high temperature (880°C) of electrolytic aluminum liquid to melt industrial pure silicon, aluminum-magnesium alloy, aluminum-copper alloy, aluminum rare earth intermediate alloy, aluminum-strontium alloy and titanium powder;

[0046] 3. When the temperature of the aluminum alloy liquid in the furnace reaches 760°C, use electromagnetic waves for homogenization treatment for 15 minutes, let it stand for 20 minutes, and then introduce the aluminum alloy liquid into the degassing box;

[0047] 4. Use high-purity nitrogen to degas the aluminum alloy liquid in the degassing box;

[0048] 5. T...

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Abstract

The invention relates to a vehicle hub using high impact toughness Al-Si-Mg alloy new material and the manufacture method. It uses Al, industrial pure Si, Al-Mg alloy, Al- Cu alloy, Al-Sr alloy, Al-rare earth intermediate alloy, and Ti power as raw material and taking smelting, ultrasonic, electromagnetic wave to whisking equally, degassing by nitrogen, filtering by double stage multi hole ceramic, and casting by water cooling crystallizer. The invention could improve impact toughness, and improve the casting capability.

Description

technical field [0001] The invention relates to a metal-based functional material and its manufacturing technology, which is especially suitable for manufacturing high-impact toughness automobile aluminum alloy wheel hubs. Background technique [0002] Automobiles have strict requirements on the properties of wheel hub materials, such as light weight, high strength, wear resistance, and good impact toughness. At present, most high-end cars in developed countries and China have adopted aluminum alloy wheels, and the production process of aluminum alloy wheels has become mature. Meet the higher requirements of the development of the automobile industry. The alloy grades of aluminum alloy wheels that have been publicly reported at home and abroad are: [0003] The United States: A356; Japan: Ac4C, Ac4A, ADC3, DX30; China: ZL101A, etc., its composition is shown in Table 1. [0004] Table 1 Chemical composition of domestic and foreign automotive aluminum wheel alloys [0005]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/02C22C1/03
Inventor 杨钢起华荣王吉坤袁崇胜
Owner YUNNAN METALLURGICAL GROUP
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