| 发明名称 |
PROCEDURE FOR CHEMICAL-THERMAL TREATMENT OF STEEL ITEMS |
| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention refers to metallurgy, particularly to chemical-thermal treatment of steel items and be implemented for protection of pins of gas shut-off accessories from corrosion. There are performed hardening, tempering, oxidising and oxide formation in salt bath containing 10 % of NaOH, 45% NaNO2, 45% KNO3 at temperature 450C and time of conditioning 30 minutes. ^ EFFECT: increased wear and surface corrosion resistance of items. |
| 申请公布号 |
RU2390582(C2) |
申请公布日期 |
2010.05.27 |
| 申请号 |
RU20080131185 |
申请日期 |
2008.07.28 |
| 申请人 |
GOSUDARSTVENNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA "ORENBURGSKIJ GOSUDARSTVENNYJ UNIVERSITET" |
发明人 |
BOGODUKHOV STANISLAV IVANOVICH;PROSKURIN ALEKSANDR DMITRIEVICH;ZLOBIN MAKSIM SERGEEVICH;PUNDIKOV VLADIMIR VITAL'EVICH;MOSENZ MIKHAIL IGOREVICH |
| 分类号 |
C21D1/78;C23C8/10;C23F17/00 |
主分类号 |
C21D1/78 |
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