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A stirring method for preparing a crucible for particle reinforced metal matrix composites

A particle-reinforced and composite material technology, which is applied in the preparation of particle-reinforced aluminum-based composite materials, the preparation of crucibles for particle-reinforced metal-based composite materials by stirring method, and the field of vacuum air-conditioned pressure casting, which can solve the problem of high crucible replacement and maintenance costs, and external connections. Avoid problems such as road temperature rise and alloy liquid spillage, and achieve the effects of low cost, prevention of spillage, and improved utilization

Active Publication Date: 2018-05-01
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The technology to be solved by the patent of the present invention is that during the preparation process of particle-reinforced metal matrix composites, particle powder sticks to the inner wall of the crucible and the surface of the agitator and is difficult to remove. Problems such as rising, alloy liquid overflow during vacuuming, and high crucible replacement and maintenance costs, provide a crucible for preparing particle-reinforced metal matrix composites by stirring method

Method used

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  • A stirring method for preparing a crucible for particle reinforced metal matrix composites
  • A stirring method for preparing a crucible for particle reinforced metal matrix composites
  • A stirring method for preparing a crucible for particle reinforced metal matrix composites

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing, the patent of the present invention is further described.

[0023] A crucible for preparing particle-reinforced metal matrix composites by stirring method, such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 As shown, the middle plate 1 of the crucible is welded by pipe and plate, and the material is stainless steel 304. The materials of the outer packing 2 and the inner packing 4 are asbestos and tetrafluoroethylene. The crucible body 3 is welded by stainless steel 304. Packing I5 and Packing II6 material is silicone rubber.

[0024] The intermediate plate 1 consists of an upper cover plate, a lower base plate, 3 layers of intermediate support plates, 9 water baffles, 2 thickened water baffles, water inlet pipe 10, return water pipe 13, air pipe 11, flange plate 12 and 4 positioning Block 9 is welded. The upper cover plate and the lower bottom plate are made of plates with a thickness of 10m...

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Abstract

The invention relates to a crucible for preparing a particle reinforced metal base composite material by a stirring method. The crucible comprises a middle disc (1), an outer pack (2), a crucible body (3) and an inner pack (4). A groove and a thread blind hole are formed in the middle disc (1), are sealed by packs and stirring devices, are provided with cooling water ways and air ways inside for exhausting and supplying air to the crucible body (3), and are provided with positioning blocks on the outer edges for realizing horizontal positioning with the crucible body (3); the crucible body (3) is convenient for production and manufacturing; the disc is provided with the groove and the thread blind hole; and the outer pack (2), the inner pack (4) and the middle disc (1) are used for sealing. The middle disc (1), the outer pack (2), the crucible body (3) and the inner pack (4) realize axial pressing through external weight and tightening force. The air way in the middle disc (1) can blow air to clean particles attached on the inner wall of the crucible body (3) and a stirrer; and the cooling water way is positioned in the middle disc (1) for preventing transfer of the temperature to a stirring device and performing effective cooling in hot air exhausting.

Description

technical field [0001] The invention belongs to the field of composite material preparation, and in particular relates to a crucible for preparing particle-reinforced metal-matrix composite materials by a stirring method, and is particularly suitable for the preparation of particle-reinforced aluminum-matrix composite materials and the vacuum air-pressure casting technology thereof. Background technique [0002] Metal Matrix Composites (MMC) appeared in the late 1970s, because of its good specific strength, specific stiffness, high temperature strength, wear resistance, corrosion resistance and other comprehensive mechanical properties, more flexible designability , has been rapidly developed and applied. Particle-reinforced metal matrix composites, especially SiCp / Al composites, have good economics and become the most studied metal matrix composites. The more mature preparation methods of SiCp / Al composite materials include: powder metallurgy method, stirring casting metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B14/10B22D18/06
CPCB22D18/06F27B14/10
Inventor 杨智勇韩建民李卫京陈怀军李志强潘利科
Owner BEIJING JIAOTONG UNIV
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