发明名称 |
METHOD OF PRODUCING FIBRE-REINFORCED HIGH-NITROGENOUS AUSTENITE STEEL POWDER OF NANOCRYSTALLINE STRUCTURE |
摘要 |
FIELD: metallurgy.SUBSTANCE: mix of chromium, nickel, magnesium and iron powders is placed into reactor equipped with gas continuous-flow system and grinding balls are added in amount of 30-50% of reactor volume. Thereafter, reactor is sealed to perform the preliminary blowing of said mix by nitrogen-bearing gas at the rate of 2-16 l/h for 10-20 minutes and to decrease gas flow rate to 0.2-0.3 l/h. Said mix is subjected to mechanical doping with energy doze of 150 to 720 kJ/g. Then, metal-nonmetal powder composition is added into reactor in amount not exceeding 50% of steel weight for 10-60 minutes.EFFECT: better steel mechanical properties, fast doping.1 dwg, 1 tbl |
申请公布号 |
RU2513058(C1) |
申请公布日期 |
2014.04.20 |
申请号 |
RU20130110241 |
申请日期 |
2013.03.06 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE BJUDZHETNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA "SANKT-PETERBURGSKIJ GOSUDARSTVENNYJ POLITEKHNICHESKIJ UNIVERSITET (FGBOU VPO "SPBGPU") |
发明人 |
RUDSKOJ ANDREJ IVANOVICH;POPOVICH ANATOLIJ ANATOL'EVICH;RAZUMOV NIKOLAJ GENNAD'EVICH |
分类号 |
C22C33/02;B22F1/00;B82Y30/00 |
主分类号 |
C22C33/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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