Aluminum-based composite material and semi-solid preparation method thereof

An aluminum-based composite material and a technology for composite materials, which are applied in the field of aluminum-based composite materials and their semi-solid preparation, can solve the problems of high cost, low production efficiency, and cumbersome solutions, and achieve low cost, high yield and low cost. Effect

Active Publication Date: 2022-08-02
福建祥鑫轻合金制造有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the disadvantage is that this method is too cumbersome. In particular, the treatment of the powder must not only be washed with water, but also heated at a specific temperature. The production efficiency is low, and further extrusion deformation is required after the composite material is prepared during the preparation process. processing, the cost is slightly higher

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  • Aluminum-based composite material and semi-solid preparation method thereof
  • Aluminum-based composite material and semi-solid preparation method thereof

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preparation example Construction

[0029] A semi-solid preparation method of an aluminum-based composite material, the steps comprising:

[0030] (1) Powder surface modification treatment: put the ceramic particle powder and ball milling ball in a ball mill, wherein the ball-to-material ratio of the ball milling ball and the ceramic particle powder is 1-2:10, and the rotation speed of the ball mill is kept at 90-120 rpm / min, the time is 5-15min, to obtain powder A;

[0031] (2) Preparation of molten alloy liquid: according to the requirements of alloy mass percentage, put Al-20Si master alloy, Al-10Mn master alloy, Al-Ti master alloy and pure aluminum ingot into the crucible at the same time, and set the heating temperature to 715~735 ℃, continue to heat the crucible, when the solid in the crucible is completely melted into a liquid, add the Mg ingot, and keep the temperature until the Mg ingot is completely melted into the alloy liquid to obtain a molten alloy liquid;

[0032](3) Semi-solid slurry preparatio...

Embodiment 1

[0038] The aluminum-based composite material of this embodiment includes, by volume percentage: 6% of ceramic particles and 94% of aluminum alloy. The ceramic particle material is boron carbide. The average size of the ceramic particles was 5 μm. The aluminum alloy is a 6-series aluminum alloy, and includes the following components by mass percentage: Si1.32%, Fe0.20%, Mn0.86%, Mg1.10%, Ti0.12%, and the rest are Al. The composite material in this embodiment is carried out according to the following steps:

[0039] (1) Powder surface modification treatment: the ceramic particle powder and the ball mill ball are placed in a ball mill, wherein the ball-to-material ratio of the ball mill ball and the ceramic particle powder is 1:10, and the rotational speed of the ball mill is kept at 90 rpm, and the time For 5min, powder A was obtained;

[0040] (2) Preparation of molten alloy liquid: According to the requirements of the mass percentage of aluminum alloy, put the Al-20Si maste...

Embodiment 2

[0045] The aluminum-based composite material of this embodiment includes, by volume percentage, 14% of ceramic particles and 86% of aluminum alloy. Wherein, the material of the ceramic particles is boron carbide. The average size of the ceramic particles was 15 μm. The aluminum alloy is a 6-series aluminum alloy, and includes the following components by mass percentage: Si1.35%, Fe0.25%, Mn0.96%, Mg1.15%, Ti0.15%, and the rest are Al. The composite material in this embodiment is carried out according to the following steps:

[0046] (1) Powder surface modification treatment: the ceramic particle powder and the ball mill ball are placed in a ball mill, wherein the ball-to-material ratio of the ball mill ball and the ceramic particle powder is 2:10, and the rotation speed of the ball mill is kept at 120 rpm, and the time For 15min, powder A was obtained;

[0047] (2) Preparation of molten alloy liquid: According to the requirements of the mass percentage of aluminum alloy, pu...

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Abstract

The invention discloses an aluminum-based composite material and a semi-solid preparation method thereof. The composite material comprises the following components in percentage by volume: 6-14% of ceramic particles and 86-94% of aluminum alloy. The preparation method comprises the steps of powder surface modification treatment, molten alloy liquid preparation, semi-solid slurry preparation, composite material blank preparation and composite material blank heat treatment. According to the method, the high-quality and low-cost composite material and the semi-solid near-net forming preparation thereof can be realized, the preparation of the high-quality aluminum-based composite material is realized through powder surface modification treatment, molten alloy liquid component design and a composite material heat treatment process, and the technological process is simple in flow, low in cost and high in yield.

Description

technical field [0001] The invention relates to the technical field of aluminum-based composite materials, in particular to an aluminum-based composite material and a semi-solid preparation method thereof. Background technique [0002] With the rapid development of the national industry, especially the automotive and transportation industries, higher requirements have been placed on the comprehensive quality, lightweight, and cost of materials. The strength of the traditional 6-series aluminum alloys used in the new energy vehicle industry has reached more than 300MPa. To achieve higher performance materials, on the one hand, the comprehensive quality of the existing 6-series alloys can be improved, but this also means an increase in the degree of alloying. On the other hand, the alloy series can be replaced, such as 2 series and 7 series aluminum alloys, but these two series alloys belong to high-strength aluminum alloys, and the production and manufacturing costs for autom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C32/00C22C1/05B22D17/00B22F9/04C22F1/043
CPCC22C21/02C22C32/00C22C1/051B22D17/007C22F1/043B22F9/04B22F2009/043Y02P10/25
Inventor 池海涛张建雷黄铁明
Owner 福建祥鑫轻合金制造有限公司
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