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High-hardness wear-resistant aluminum alloy material and preparation method thereof

A technology of aluminum alloy materials and high hardness, which is applied in the field of material manufacturing, can solve problems such as difficult to find materials, and achieve the effects of product performance assurance and accurate and reliable heat treatment process

Pending Publication Date: 2022-07-15
南通鸿劲金属铝业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to find suitable materials among the existing die-casting aluminum alloys.

Method used

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  • High-hardness wear-resistant aluminum alloy material and preparation method thereof
  • High-hardness wear-resistant aluminum alloy material and preparation method thereof
  • High-hardness wear-resistant aluminum alloy material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]Embodiment 1: The present invention relates to a high-hardness wear-resistant aluminum alloy material, including the elements in mass percentage: Cu3.5%, Si13.5.%, Mn0.35%, Mg0.55%, Fe≤0.75%, Zn ≤1.3%, Ca≤30ppm, P≤20ppm, Ti0.060%, P0.0065%, Cr0.075%, La+Ce 0.015%, the balance is Al and impurities, of which the total content of impurities is not more than 0.15%.

[0039] A method for preparing a high-hardness wear-resistant aluminum alloy material, comprising the following steps:

[0040] S1. Prepare raw materials according to the percentage of each element in the formula of the aluminum alloy material;

[0041] S2, melting;

[0042] S3, the first slag and degassing;

[0043] S4, remove the scum, and deal with the deterioration;

[0044] S5, the second deslagging and degassing;

[0045] S6, remove the scum, close the furnace door, and carry out a standing treatment, and the standing time is controlled at 20min;

[0046] S7, refinement treatment to form aluminum alloy...

Embodiment 2

[0059] Embodiment 2: a high-hardness wear-resistant aluminum alloy material, including mass percentage of each element: the Cu4.5%, Si15.5%, Mn0.45%, Mg0.75%, Fe≤0.75%, Zn≤ 1.3%, Ca≤30ppm, P≤20ppm, Ti0.1%, P0.01%, Cr0.1%, La+Ce 0.025%, the balance is Al and impurities, of which the total content of impurities is not more than 0.15%.

[0060] The present invention also relates to a method for preparing a high-hardness wear-resistant aluminum alloy material, comprising the following steps:

[0061] S1. Prepare raw materials according to the percentage of each element in the formula of the aluminum alloy material;

[0062] S2, melting;

[0063] S3, the first slag and degassing;

[0064] S4, remove the scum, and deal with the deterioration;

[0065] S5, the second deslagging and degassing;

[0066] S6, remove the scum, close the furnace door, and carry out a standing treatment, and the standing time is controlled at 30min;

[0067] S7, refinement treatment to form aluminum al...

Embodiment 3

[0080] Embodiment 3: a high-hardness wear-resistant aluminum alloy material, including mass percentage of each element: Cu5.5%, Si18.5%, Mn0.55%, Mg0.95%, Fe≤0.75%, Zn≤1.3%, Ca≤30ppm, P≤20ppm, Ti0.15%, P0.013%, Cr0.15%, La+Ce 0.035%, the balance is Al and impurities, and the total content of impurities is not more than 0.15%.

[0081] The present invention also relates to a method for preparing a high-hardness wear-resistant aluminum alloy material, comprising the following steps:

[0082] S1. Prepare raw materials according to the percentage of each element in the formula of the aluminum alloy material;

[0083] S2, melting;

[0084] S3, the first slag and degassing;

[0085] S4, remove the scum, and deal with the deterioration;

[0086] S5, the second deslagging and degassing;

[0087] S6, remove the scum, close the furnace door, and carry out a standing treatment, and the standing time is controlled at 40min;

[0088] S7, refinement treatment to form aluminum alloy liq...

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Abstract

The high-hardness wear-resistant aluminum alloy material comprises the following elements in percentage by mass: 3.5%-5.5% of Cu, 13.5%-18.5% of Si, 0.35%-0.55% of Mn, 0.55%-0.95% of Mg, less than or equal to 0.75% of Fe, less than or equal to 1.3% of Zn, less than or equal to 30 ppm of Ca, less than or equal to 20 ppm of P, 0.060%-0.15% of Ti, 0.0065%-0.013% of P, 0.075%-0.15% of Cr, 0.015%-0.035% of La + Ce and the balance of Al and impurities, and the total content of the impurities is less than or equal to 0.15%. The method has the advantages that after the aluminum alloy is fully modified and refined, effective alloy elements Ti, P and Cr do not have burning loss and specific gravity segregation, the long-acting and stable effect is achieved, meanwhile, the heat treatment process is accurate, reliable and efficient, the product performance is effectively guaranteed, and the excellent characteristics of being efficient and rapid are achieved.

Description

technical field [0001] The invention relates to a high-hardness wear-resistant aluminum alloy material and a preparation method thereof, and relates to the technical field of material manufacturing. Background technique [0002] In recent years, with the rapid development of industries such as automobiles, the performance requirements for automotive materials have become more stringent. In addition, due to social pressures such as energy saving, emission reduction and environmental pollution, lightweight has become a strategic development demand. Therefore, the automotive industry requires higher strength and higher hardness in order to achieve the goal of high wear resistance when designing high-hardness wear-resistant parts. Most die-casting aluminum alloys have a moderate tensile strength of 280-300MPa, a yield strength of 110-130MPa, an elongation after fracture of 2-4%, and low hardness (<80HBW) resulting in poor wear resistance, such as ADC12, A380, A360 and other...

Claims

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Application Information

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IPC IPC(8): C22C21/04C22C1/03C22C1/06B22D17/00C22F1/043
CPCC22C21/04C22C1/03C22C1/026C22C1/06B22D17/00C22F1/043
Inventor 程汉明姜鹏飞陆梁张达成
Owner 南通鸿劲金属铝业有限公司
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