发明名称 THE METHOD OF STEAM-OXIDATION OF THE SINTERED ITEMS MADE OUT OF THE IRON POWDERS
摘要 FIELD: powder metallurgy; steam treatment of the sintered items made out of the iron powders. SUBSTANCE: the invention presents the method of the steam treatment of the sintered items made out of the iron powders and may be used in the powder metallurgy. The method provides for heating of the sintered items up to the temperature of 400-550 C and their oxidation by steam. At that the process of pseudo-fluidization and oxidation is carried out simultaneously with water delivery directly into the working space of the furnace. Technical result is the increase of the items rust resistance and decrease of the production power consumption at the expense of decrease at the steam transportation losses. EFFECT: the invention allows to increase the items rust resistance, to decrease production process power consumption. 1ex
申请公布号 RU2222411(C2) 申请公布日期 2004.01.27
申请号 RU20020110081 申请日期 2002.04.16
申请人 发明人 BOBOK A.N.;GVOZDEV E.A.;GRACHEV S.V.;KIRJUKHIN P.M.;KOLPAKOV A.S.;MAL'TSEVA L.A.;PAVLOVA A.V.;SHAVELKIN A.D.
分类号 B22F3/24;C23C8/16 主分类号 B22F3/24
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