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Medium-strength super-hard aluminum alloy and manufacturing process thereof

A hard aluminum alloy and manufacturing process technology, which is applied in the field of aluminum alloy, can solve the problems of failing to realize the short process of lightweight processing of auto parts, and achieve the effect of enhancing the solid solution effect, increasing the strength, and improving the ductility

Inactive Publication Date: 2020-08-07
苏州撼力合金股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The Chinese patent application number is CN201880012293.1, which discloses high-strength aluminum alloy and high-strength aluminum alloy castings. By using the high-strength aluminum alloy to produce high-strength aluminum alloy castings, it can be used in casting products such as die-casting, gravity casting and low-pressure casting. (squeeze casting, wax baking, thixotropic casting) or powder form casting, so that it can be applied in the field of coating or 3D printing, failing to realize the lightweight of auto parts and the realization of short processing process

Method used

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  • Medium-strength super-hard aluminum alloy and manufacturing process thereof
  • Medium-strength super-hard aluminum alloy and manufacturing process thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The medium-strength superhard aluminum alloy is composed of the following components in terms of mass percentage: Si 15%, Cu 12%, Zn 4%, Fe 0.5%, Mg 0.5%, Ni 0.4%, Mn 0.3%, Co 0.2%, La0.1%, Al remainder.

[0033] The manufacturing process of the medium-strength superhard aluminum alloy includes batching, smelting, and casting in sequence;

[0034] Ingredients: According to the formula, the ingredients are washed with alkaline solution until the defects such as alumina and slag on the surface are removed, and then baked to remove the contained water

[0035] Described smelting, comprises the following steps:

[0036] (1) Aluminum: the matrix is ​​placed in a natural gas furnace at a temperature of 750°C, and an intermediate alloy is added, and alloyed in the following order: Al-Si alloy, Cu-Zn alloy, Fe-Ni alloy, Al-Mg alloy, Co-La alloy;

[0037] (2) Detection: get the above-mentioned melt in the natural gas furnace and carry out spectral test to obtain the informati...

Embodiment 2

[0045] The medium-strength superhard aluminum alloy is composed of the following components in terms of mass percentage: 16% Si, 12% Cu, 5% Zn, 0.7% F, 0.5% Mg, 0.5% Ni, 0.4% Mn, 0.3% Co %, La0.2%, Al balance.

[0046] The manufacturing process of the medium-strength superhard aluminum alloy includes batching, smelting, and casting in sequence;

[0047] Ingredients: According to the formula, the ingredients are washed with alkaline solution until the defects such as alumina and slag on the surface are removed, and then baked to remove the contained water

[0048] Described smelting, comprises the following steps:

[0049] (1) Aluminum: the matrix is ​​placed in a natural gas furnace at a temperature of 760°C, and an intermediate alloy is added, and alloyed in the following order: Al-Si alloy, Cu-Zn alloy, Fe-Ni alloy, Al-Mg alloy, Co-La alloy;

[0050] (2) Detection: get the above-mentioned melt in the natural gas furnace and carry out spectral test to obtain the informatio...

Embodiment 3

[0058] The medium-strength superhard aluminum alloy is composed of the following components in terms of mass percentage: Si 18%, Cu 10%, Zn3%, Fe 0.8%, Mg 0.6%, Ni-0.6%, Mn 0.5%, Co 0.3% , La0.4%, Al balance.

[0059] The manufacturing process of the medium-strength superhard aluminum alloy includes batching, smelting, and casting in sequence;

[0060] Ingredients: According to the formula, the ingredients are washed with alkaline solution until the defects such as alumina and slag on the surface are removed, and then baked to remove the contained water

[0061] Described smelting, comprises the following steps:

[0062] (1) Aluminum: the matrix is ​​placed in a natural gas furnace at a temperature of 730°C, and an intermediate alloy is added, and alloyed in the following order: Al-Si alloy, Cu-Zn alloy, Fe-Ni alloy, Al-Mg alloy, Co-La alloy;

[0063] (2) Detection: get the above-mentioned melt in the natural gas furnace and carry out spectral test to obtain the information...

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Abstract

The invention relates to a medium-strength super-hard aluminum alloy and a manufacturing process thereof. The aluminum alloy is composed of, by weight, 8%-18% of Si, 8%-15% of Cu, 3%-6% of Zn, 0.3%-0.8% of Fe, 0.3%-0.6% of Mg, 0.3%-0.6% of Ni, 0.2%-0.5% of Mn, 0.1%-0.3% of Co, 0.1%-0.4% of La and the balance Al. According to the medium-strength super-hard aluminum alloy and the manufacturing process thereof, the proportion is reasonable, all elements in the formula act synergistically, the medium-strength super-hard aluminum alloy has excellent strength and hardness, and the manufacturing process is short in flow, low in cost, higher in material utilization efficiency, low in pressure casting and free of pollution and has better cost and performance compared with 7-series aluminum alloy; and the medium-strength super-hard aluminum alloy can replace cast iron and powder metallurgy locomotive parts and replace high-speed rotation, friction pairs and meshing steel parts, the requirement for light weight is met, the strength, the abrasion resistance and the impact resistance of conventional high-strength aluminum alloy plate sleeve parts and shell parts are improved, and the application prospect is wide.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloys, and in particular relates to a medium-strength superhard aluminum alloy and a manufacturing process thereof. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in the industry. Its density is low, but its strength is relatively high, which is close to or exceeds that of high-quality steel. It has good plasticity and can be processed into various profiles. It has excellent electrical conductivity, thermal conductivity and Corrosion resistance, widely used in industry, the amount of use is second only to steel. The types of aluminum alloys include 1-series, 2-series, 3-series, 4-series, 5-series, 6-series, 7-series, 8-series, and 9-series, and the commonly used ones are 1-7 series. Among them, Series 1, Series 3, Series 5, Series 6, and Series 7 are deformed aluminum alloys, which are often used as rods, plate tubes, profiles, etc., w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/03
CPCC22C1/026C22C1/03C22C21/02
Inventor 赵祥伟
Owner 苏州撼力合金股份有限公司
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