发明名称 |
FOERFARANDE OCH ANORDNING FOER FRAMSTAELLNING AV GJUTJAERM MED VERMIKULAERGRAFIT |
摘要 |
A process for the manufacture of cast iron containing vermicular graphite is described, in which nodular cast iron (GGG) is used as a starting melt. The GGG melt can be produced in a converter in a precise and reproducible way, whereby the sulphur and oxygen contents of the GGG melt are limited within narrow ranges. Additional sulphur is added to the GGG melt in an amount determined by an empirical formula depending on the magnesium and sulphur contents of the GGG melt to produce cast iron containing vermicular graphite (GGV). The GGV is produced by the present process with precision and in a reproducible manner. |
申请公布号 |
SE462621(B) |
申请公布日期 |
1990.07.30 |
申请号 |
SE19850001814 |
申请日期 |
1985.04.12 |
申请人 |
GEORG FISCHER AG |
发明人 |
W * MENK;U * BRANDENBERGER |
分类号 |
C21C1/08;C21C1/10;C22C33/10 |
主分类号 |
C21C1/08 |
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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