| 发明名称 |
METHOD OF PRODUCING MULTILAYER INVESTMENT SHELL CASTING MOULDS |
| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: proposed method comprises layer-by-layer application of refractory suspension on pattern and coating by granular material. Starting from second layer to granular material added are oxygen-containing substance in amount of 5-10 wt % and boric acid in amount of 2-3 wt %. Patterns are rendered by hot water for shells to be calcinated. ^ EFFECT: higher efficiency and quality. ^ 2 cl, 2 tbl, 1 ex |
| 申请公布号 |
RU2433013(C1) |
申请公布日期 |
2011.11.10 |
| 申请号 |
RU20100137431 |
申请日期 |
2010.09.08 |
| 申请人 |
GOSUDARSTVENNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA NIZHEGORODSKIJGOSUDARSTVENNYJ TEKHNICHESKIJ UNIVERSITET IM. R.E. ALEKSEEVA (NGTU) |
发明人 |
LEUSHIN IGOR' OLEGOVICH;LEUSHINA LJUBOV' IGOREVNA;NISHCHENKOV ALEKSANDR VLADIMIROVICH;SMYSLOV SERGEJ BORISOVICH;SUBBOTIN ANDREJ JUR'EVICH |
| 分类号 |
B22C9/04 |
主分类号 |
B22C9/04 |
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