| 发明名称 |
POWDER ADDITIVE FOR EARLY STAGE OF CASTING |
| 摘要 |
PURPOSE:To provide the title additive decreasing the occurrence of recesses on ingots in the early stage of casting, obtd. by adding a small amt. of carbon fine powder as aggregate to a base material of a specified compsn. and a specified grain size contg. CaO, SiO2 and NaF specifying the ratio of CaO/SiO2. |
| 申请公布号 |
JPS53146912(A) |
申请公布日期 |
1978.12.21 |
| 申请号 |
JP19770062151 |
申请日期 |
1977.05.30 |
| 申请人 |
NIPPON STEEL CORP |
发明人 |
TAKEDA MASAO;KOMANO TADAAKI;YANAI TAKASHI;NISHIDA TOSHIAKI |
| 分类号 |
C21C7/076;B22D11/10;B22D11/108;B22D11/111;C21C7/00 |
主分类号 |
C21C7/076 |
| 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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