发明名称 |
METHOD FOR THE PRODUCTION OF ARTICLES MAINLY CONSISTING OF SPHEROIDAL GRAPHITE CAST IRON |
摘要 |
1. Process for producing castings, especially in spherical graphite moulds, of the kind in which the molten metal is poured from a ladle into a mould, characterised in that on the one hand, the magnesium content of the molten metal is between 0.03 and 0.07% and the aluminium content thereof is at least 0.1% and, on the other hand, that whilst pouring the molten metal the already known technique of pouring into a mould in which the atmosphere has previously been rendered inert by pouring liquid nitrogen into the bottom of the mould is utilised. |
申请公布号 |
DE3060003(D1) |
申请公布日期 |
1981.10.22 |
申请号 |
DE19803060003 |
申请日期 |
1980.02.25 |
申请人 |
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE |
发明人 |
DEFRANCQ, CHARLES;ROUHIER, JACQUES |
分类号 |
B22D1/00;B22D23/00;B22D27/20;C21C1/08;C21C1/10;(IPC1-7):B22D1/00 |
主分类号 |
B22D1/00 |
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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