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公开(公告)号：US3752712A
公开(公告)日：1973-08-14
申请号：US3752712D
申请日：1971-06-07
Applicant: DOMTAR LTD
Inventor： HOLCOMB R
CPC classification number: B22F9/082 , B22F2009/0828 , C22C33/0257
Abstract: A PREALLOYED IRON-COPPER POWDER WHICH HAS HIGH COMPRESSIBLIITY AND SHRINKS UPON SINTERING IS PREPARED BY MELTING A CHARGE OF IRON AND COPPER, ATOMIZING THE CHARGE WITH WATER JETS UNDER PRESSURE, FURTHER COMMINUTING THE PARTICLES IF DESIRED, AND SUBJECTING THE FORMED POWDER TO A HEAT TREATMENT BETWEEN 1400*F. AND 1800*F. IN A REDUCING ATMOSPHERE FOLLOWED BY A CONTROLLED COOLING.
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