High-perforance compression casting aluminium alloy

An aluminum alloy, high-performance technology, applied in the field of aluminum alloy materials, can solve the problems of poor cutting performance and low elongation, and achieve the effects of simple and easy smelting process, good cutting performance, good fluidity and mechanical properties

Inactive Publication Date: 2005-02-23
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the commonly used Al-Si-Cu-Mg series die-casting aluminum alloys are generally composed of Al, Si, Cu, Mg and other components, such as ZL112Y, ZL113Y in my country, ADC10, ADC12, ADC14 in Japan, etc. Although this type of aluminum alloy It has good casting performance and high tensile strength, but it has the disadvantages of low elongation, especially poor cutting performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The materials used for smelting are: crystalline silicon, Al-10% RE, Al-10% Mn, Al-10% Fe, Al-50% Cu master alloy, 99.5% zinc ingot, aluminum ingot for remelting, magnesium ingot for remelting

[0012] Raw material ratio (weight percentage) is: Si: 11.0, Cu: 2.0, Mg: 0.3, RE: 0.1, Zn: 0.8, Mn: 0.4, Fe: 1.0, and the rest is Al.

[0013] Prepare the alloy according to the above ingredients, first add about 2 / 3 of the aluminum material into the crucible to melt, when the aluminum material becomes a paste, press the crystalline silicon into the aluminum liquid, and add the remaining aluminum material into the crucible, cover and add The crystalline silicon should not be allowed to float, otherwise the burning loss will be serious. When Si is completely melted, stir evenly, and add Al-50% Cu, Al-10% Mn, Al-10% Fe master alloy and zinc. When the temperature reaches 710°C, remove the slag, add 0.3% of the total weight of the furnace material to the sodium-free refining agent ...

Embodiment 2

[0015] Materials and equipment used for smelting are the same as in Example 1.

[0016] The composition (percentage by weight) of the alloy is: Si: 11.0, Cu: 2.5, Mg: 0.4, RE: 0.2, Zn: 0.8, Mn: 0.4, Fe: 1.0, and the rest is Al.

[0017] Prepare the alloy according to the above ingredients, first add about 2 / 3 of the aluminum material into the crucible to melt, when the aluminum material becomes a paste, press the crystalline silicon into the aluminum liquid, and add the remaining aluminum material into the crucible, cover and add The crystalline silicon should not be allowed to float, otherwise the burning loss will be serious. When Si is completely melted, stir evenly, and add Al-50% Cu, Al-10% Mn, Al-10% Fe master alloy and zinc. When the temperature reaches 720°C, remove the slag, add 0.3% of the total weight of the charge to the sodium-free refining agent for refining and degassing, after refining, let it stand for 10 minutes, remove the slag, then press the magnesium int...

Embodiment 3

[0019] Materials and equipment used for smelting are the same as in Example 1.

[0020] The composition (percentage by weight) of the alloy is: Si: 11.5, Cu: 3.0, Mg: 0.4, RE: 0.3, Zn: 0.8, Mn: 0.4, Fe: 1.0, and the rest is Al.

[0021] Prepare the alloy according to the above ingredients, first add about 2 / 3 of the aluminum material into the crucible to melt, when the aluminum material becomes a paste, press the crystalline silicon into the aluminum liquid, and add the remaining aluminum material into the crucible, cover and add The crystalline silicon should not be allowed to float, otherwise the burning loss will be serious. When Si is completely melted, stir evenly, and add Al-50% Cu, Al-10% Mn, Al-10% Fe master alloy and zinc. When the temperature reaches 730°C, remove the slag, add 0.3% of the total weight of the charge to the sodium-free refining agent for refining and degassing, after the refining is completed, let it stand for 5 minutes, remove the slag, then press t...

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Abstract

A aluminum alloy material consists of Si 9.5-11.5wt%, Cu 2.0-3.0wt%, Mg 0.3-0.4wt%, mixed rare earth RE 0.1-0.3wt%, Mn is less than or equal to 0.5, Zn is less than or equal to 1.0, Fe is less than or equal to 1.0, Al residue. The mixed rare earth RE consists of La 5-80wt%, Ce 5-40wt%, Nd 1-20wt%, Y 1-20wt%, Pr 1-20wt%. It achieves good flowing, mechanical and cutting machining performance.

Description

technical field [0001] The invention relates to an aluminum alloy material, in particular to a high-performance die-casting aluminum alloy material. Background technique [0002] At present, the commonly used Al-Si-Cu-Mg series die-casting aluminum alloys are generally composed of Al, Si, Cu, Mg and other components, such as ZL112Y, ZL113Y in my country, ADC10, ADC12, ADC14 in Japan, etc. Although this type of aluminum alloy It has good casting performance and high tensile strength, but it has the disadvantages of low elongation, especially poor cutting performance. Contents of the invention [0003] The object of the present invention is to propose a high-performance die-casting aluminum alloy with good casting performance and high tensile strength, high elongation and good cutting performance. [0004] The high-performance die-casting aluminum alloy involved in the technical solution of the present invention adopts a conventional aluminum alloy smelting process, and adds...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/04
Inventor 李华基薛寒松
Owner CHONGQING UNIV
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