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High-toughness non-heat treatment strengthened die-casting aluminum alloy and preparation method thereof

A casting aluminum alloy, high-strength technology, applied in the field of high-strength non-heat treatment strengthened die-casting aluminum alloy and its preparation, can solve the problems of complex preparation process and high production cost, and achieve the effects of strong chemical activity, increased strength, and refined grains

Inactive Publication Date: 2019-08-09
江苏双梦源精密成型科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process is complicated and the production cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 30 kilograms of Al-8Ce-0.25Mg-0.1Ti high strength and toughness non-heat treatment strengthened die-casting aluminum alloy (that is, the composition content of the aluminum alloy is: 8wt% Ce, 0.25wt% Mg, 0.1wt% Ti, the rest is Al element and unavoidable impurity element) and its preparation method.

[0030] (1) Material preparation: use pure aluminum ingot as the raw material of Al element in the alloy, use pure magnesium ingot as the raw material of Mg element in the alloy, use Al-Ti master alloy as the raw material of Ti element in the alloy, and use Al-Ce master alloy as the raw material of the alloy The raw material of the Ce element is prepared according to the mass percentage considering the burning loss rate of the alloy, so as to ensure that the mass percentage of each component of the final aluminum alloy is within the range of the element ratio required by the invention patent.

[0031] (2) Preheating: Put pure aluminum ingots, pure magnesium ingots, Al-Ti mas...

Embodiment 2

[0039] 30 kilograms of Al-4Ce-4La-0.25Mg-0.1Ti high strength and toughness non-heat treatment strengthened die-casting aluminum alloy (that is, the composition content of the aluminum alloy is: 4wt% Ce, 4wt% La, 0.25wt% Mg, 0.1wt% Ti and the rest are Al and unavoidable impurities) and its preparation method.

[0040] (1) Material preparation: use pure aluminum ingot as the raw material of Al element in the alloy, use pure magnesium ingot as the raw material of Mg element in the alloy, use Al-Ti master alloy as the raw material of Ti element in the alloy, and use Al-Ce master alloy as the raw material of the alloy The raw material for the Ce element is to use the Al-La master alloy as the raw material for the La element in the alloy. Considering the burning loss rate of the alloy, the raw material is prepared according to the mass percentage, so as to ensure that the mass percentage of each component of the final aluminum alloy is within the range of the element ratio required b...

Embodiment 3

[0049] 30 kilograms of Al-5Ce-5La-0.1Mg-0.1Ti high strength and toughness non-heat treatment strengthened die-casting aluminum alloy (that is, the composition content of the aluminum alloy is: 5wt% Ce, 5wt% La, 0.1wt% Mg, 0.1wt% Ti and the rest is Al and unavoidable impurities) and its preparation method.

[0050] (1) Material preparation: use pure aluminum ingot as the raw material of Al element in the alloy, use pure magnesium ingot as the raw material of Mg element in the alloy, use Al-Ti master alloy as the raw material of Ti element in the alloy, and use Al-Ce master alloy as the raw material of the alloy The raw material for the Ce element is to use the Al-La master alloy as the raw material for the La element in the alloy. Considering the burning loss rate of the alloy, the raw material is prepared according to the mass percentage, so as to ensure that the mass percentage of each component of the final aluminum alloy is within the range of the element ratio required by t...

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Abstract

The invention discloses a high-toughness non-heat treatment strengthened die-casting aluminum alloy and a preparation method thereof. The aluminum alloy comprises, by weight: RE: 7-10%, Mg: 0.05-0.5%,Ti: 0.05-0.1%, inevitable impurity elements: less than or equal to 0.1%, and the balance Al. The component of RE is one or any combination of Ce and La. A pure aluminum ingot, a pure magnesium ingot,Al-Ti master alloy, Al-Ce master alloy and Al-La master alloy are used as raw materials, the preparation process of the aluminum alloy is pressure casting, and the alloy does not need to be subjectedto subsequent heat treatment; the yield strength is more than 150 MPa, the tensile strength is more than 200 MPa and the elongation rate is more than 10% in an as-cast state; and the high-toughness non-heat treatment strengthened die-casting aluminum alloy can be used for structural members with high requirements on mechanical properties in the industries of automobiles and the like, steel structural members are replaced, and the light weight development requirements of automobiles are met.

Description

technical field [0001] The invention relates to the technical field of metal materials, in particular to a high-strength non-heat-treated reinforced die-casting aluminum alloy and a preparation method thereof. Background technique [0002] With the rapid development of the automobile industry, energy saving and emission reduction has become a major trend in the development of automobiles. Relevant data show that for every 100kg reduction in automobile weight, fuel consumption can be reduced by 0.7L / 100km. Therefore, automobile lightweight is an important aspect of the development of the automobile industry. important technical approach. As a common structural material in automobiles, aluminum alloy has many advantages over steel. If the original steel is replaced by light aluminum alloy, the weight can be reduced by 30% to 40%. While reducing the weight, because the aluminum alloy has high strength and good shock absorption performance, it can also bring higher safety perf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/03C22C1/06B22D17/00
CPCB22D17/00C22C1/026C22C1/03C22C1/06C22C21/00
Inventor 李德江权北北朱文杰曾小勤应韬
Owner 江苏双梦源精密成型科技有限公司
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