SINTERED ALUMINUM ALLOY AND ITS PRODUCTION

PURPOSE:To produce a new sintered aluminum alloy having high reliability of sintering and excellent in sintering strength. CONSTITUTION:A green compact of Al is prepared. The green compact contains Si and fluoride flux and further contains Al and inevitable impurities. In the green compact, Si conte...

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Hauptverfasser: IWAI ICHIRO, FUKUI KOICHIRO
Format: Patent
Sprache:eng
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Zusammenfassung:PURPOSE:To produce a new sintered aluminum alloy having high reliability of sintering and excellent in sintering strength. CONSTITUTION:A green compact of Al is prepared. The green compact contains Si and fluoride flux and further contains Al and inevitable impurities. In the green compact, Si content is regulated to 1-5wt.% based on the total content of the elements excluding the fluoride flux. Moreover, they are blended so that the total content of the elements excluding the fluoride flux and the content of the fluoride flux form a weight ratio of (99.9:0.1) to (90:10), and density is regulated to >=50% of the theoretical value. The green compact is heated and formed into a sintered aluminum alloy. It is preferable to regulate heating temp. to 577-600 deg.C.