B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
39/113
B22D 41/08 (2006.01) B22D 41/28 (2006.01)
Patent
CA 1242881
ABSTRACT A valve plate of refractory material for a sliding gate valve for the outlet of a metallurgical vessel comprises a plate body in which a first flow opening is formed through which molten metal may flow. The plate body is also provided with a second flow opening which is closed by a plug of refractory material. When the first flow opening is worn the plug is removed and the second flow opening may then be used.
470125
Didier-Werke A.g.
Fetherstonhaugh & Co.
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