Porous body of aluminum or its alloy and a manufacturing method

Details Porous body of aluminum or its alloy and a manufacturing method Porous body of aluminum or its alloy and a manufacturing method

1978-08-23

1981-08-11

Hunt, Brooks H.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

428567, 75200, 75222, 75224, 75214, 181294, H01F 302

Patent

active

042834651

ABSTRACT:
A porous sintered material of good permeability and effective sound absorbability, being formed by combining between particles of aluminum or aluminum alloy powder into a body by means of sintering and having connecting pores among the particles of said aluminum or aluminum alloy powder. Said porous sintered material is obtained by mixing aluminum or an aluminum alloy with a low melting point aluminum alloy, forming the mixture into the predetermined shape and sintering it at a temperature which is at least 10.degree. C. lower than the melting point of the base material and higher than that of the low melting point material.

REFERENCES:
patent: 3728089 (1973-04-01), Segawa et al.
patent: 3961945 (1976-06-01), Sanders et al.
patent: 4039298 (1977-08-01), Anthony et al.
patent: 4177069 (1979-12-01), Kobayashi et al.

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