| 发明名称 |
Improvements in the introduction of substances into molten metal. |
| 摘要 |
<p>A valve assembly for insertion into the bottom of a ladle for molten metal 2 comprises refractory upper and lower parts 8 and 9 defining a flow passage 10,13 with an enlarged central region containing a valve head 17,18, 19. The valve head is moved by a spindle 21 to control the flow of gas injected through the valve into the metal.</p> |
| 申请公布号 |
EP0087261(A1) |
申请公布日期 |
1983.08.31 |
| 申请号 |
EP19830300745 |
申请日期 |
1983.02.15 |
| 申请人 |
ZIRCONAL PROCESSES LIMITED |
发明人 |
SHAW, RICHARD DUDLEY;DAVIS, RICHARD PETER BERNARD |
| 分类号 |
B22D1/00;B22D41/42;C21C5/48;C22B9/10;(IPC1-7):21C7/072;22B9/10;22D41/08;21C5/48 |
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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