Method and apparatus for producing high porosity through hole multi-hole aluminum alloy

A technology with high porosity and aluminum alloy, which is applied in the field of metal material processing to achieve the effect of uniform skeleton, high through-hole degree and increased uniformity
CN1232665CInactive Publication Date: 2005-12-21SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHEAST UNIV
Publication Date
2005-12-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for manufacturing a high-porosity through-hole porous aluminum alloy. First, the aluminum alloy is heated to melt, and the temperature of the aluminum alloy melt is kept at 660°C to 750°C. Keep warm at ℃~660℃ until the temperature of the filler particles is uniform, and the balance accounts for 5%~20% of the theoretical aluminum alloy casting amount, then place the mold on the suction cup base of the negative pressure device, and then cast the aluminum alloy melt after heat preservation into the mold, and connect the mold to a negative pressure device with a pressure of -2KPa to -40KPa. After the aluminum alloy is solidified, take out the composite of filler particles and aluminum alloy, and remove the filler particles. The invention also discloses a high-porosity through-hole porous aluminum alloy, the porosity of which is 70%-95%. The invention also discloses a high-porosity through-hole porous aluminum alloy manufacturing device. The through hole of the 70%-95% porous aluminum alloy obtained by the invention reaches 20%-35%.
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Description

1. Technical field

[0001] The invention relates to the field of metal material processing, in particular to a method and device for manufacturing high-porosity through-hole porous aluminum alloys. 2. Background technology

[0002] In the process of preparing porous aluminum alloy by the negative pressure infiltration method, due to the limitation of the bulk volume fraction of filler particles (45%-60%), the additional porosity (Pr< 5%) and the porosity (Pr<5%) produced by the solidification and shrinkage of the aluminum alloy, the porosity of the obtained porous aluminum alloy is 55% to 70%. So far there is no reliable method for preparing porous aluminum alloys with high porosity (70%-95%). 3. Contents of the invention

[0003] Technical Problem The present invention provides a method and device for manufacturing a high-porosity through-hole porous aluminum alloy.

[0004] Technical solution A method for manufacturing high-porosity through-hole porous aluminum al...

Claims

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