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Porous aluminum sintered body and method for producing porous aluminum sintered body

A manufacturing method and sintered body technology, which is applied in transportation and packaging, coating, thin material processing, etc., can solve problems such as strength reduction, and achieve the effects of small shrinkage, excellent dimensional accuracy, and high-quality strength

Active Publication Date: 2016-11-09
MITSUBISHI MATERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, in the porous aluminum sintered body having a high porosity, there is a tendency for the strength to further decrease

Method used

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  • Porous aluminum sintered body and method for producing porous aluminum sintered body
  • Porous aluminum sintered body and method for producing porous aluminum sintered body
  • Porous aluminum sintered body and method for producing porous aluminum sintered body

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Embodiment

[0136] Hereinafter, the results of confirmation experiments conducted to confirm the effects of the present invention will be described.

[0137] According to the method shown in the above-mentioned embodiment, using the raw material shown in Table 1, the aluminum raw material for sintering was produced. In addition, as the aluminum substrate, aluminum fibers having a fiber diameter of 20 μm to 1000 μm and aluminum powder having a particle diameter of 5 μm to 500 μm were used.

[0138] Using these aluminum raw materials for sintering, a porous aluminum sintered body having a width of 30 mm x a length of 200 mm x a thickness of 5 mm was produced according to the production method shown in the above-mentioned embodiment. In addition, the temperature conditions in the sintering process are shown in Table 1. The sintering temperature holding time was performed at 15 minutes.

[0139] The obtained porous aluminum sintered body was evaluated for apparent porosity and tensile stren...

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Abstract

Provided are: a high-quality porous aluminum sintered body which is able to be efficiently produced at low cost and exhibits excellent dimensional accuracy due to small shrinkage during sintering, while having sufficient strength; and a method for producing a porous aluminum sintered body. A porous aluminum sintered body (10) which is obtained by sintering a plurality of aluminum bases (11), and wherein a Ti-Al compound and a eutectic element compound containing a eutectic element that undergoes a eutectic reaction with Al are present in bond portions (15) where the aluminum bases (11) are bonded with each other. In this connection, it is preferable that the outer surface of each aluminum base (11) is provided with a plurality of columnar projections that protrudes outwardly and the columnar projections have the bond portions (15).

Description

technical field [0001] The invention relates to a porous aluminum sintered body formed by sintering a plurality of aluminum substrates and a method for manufacturing the porous aluminum sintered body. Background technique [0002] The above-mentioned porous aluminum sintered body can be used, for example, as electrodes and current collectors in various batteries, parts for heat exchangers, sound-absorbing parts, filters, impact-absorbing parts, and the like. [0003] Conventionally, such porous aluminum sintered bodies have been produced by methods disclosed in Patent Documents 1 to 5, for example. [0004] In Patent Document 1, a mixture formed by mixing aluminum powder, paraffin wax particles, and a binder is molded into a sheet, dried naturally, immersed in an organic solvent to remove wax particles, and dried, degreased, and sintered. A porous aluminum sintered body is produced. [0005] In addition, in Patent Documents 2 to 4, aluminum powder, sintering aid powder con...

Claims

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Application Information

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IPC IPC(8): B22F3/11B22F1/00B22F1/02C22C1/04C22C1/08C22C21/00B22F1/062B22F1/10B22F1/16B22F1/17
CPCB22F3/11C22C1/08C22C21/00B22F3/1118C22C49/06Y10T428/12479B22F3/1103B22F2998/10C22C1/0416C22C21/06C22C32/0089B22F1/17B22F1/16B22F1/10B22F1/062B22F9/04B22F2301/052B22F2301/058B22F2301/15B22F2301/205B22F2302/45
Inventor 杨积彬喜多晃一幸俊彦星野孝二加藤纯
Owner MITSUBISHI MATERIALS CORP