Valve closure gate assembly for foundry ladles

Details Valve closure gate assembly for foundry ladles Valve closure gate assembly for foundry ladles

B - Operations, Transporting

22

D

22/85

B22D 41/28 (2006.01)

Patent

CA 1217916

ABSTRACT The present invention relates to the foundry industry and solves the problem of extended service life of valve closure gate assemblies for foundry ladies. The valve closure gate assembly of the present invention comprises two mutually slidable heat-resistant gates (12,16) furnished with a pro- tecting layer (22) of an oxide refractory material and having flow-through rings (18,20) made from an oxide refractory material disposed in the openings of the gates. The respective upper and lower surfaces of the rings are coated with a layer of refractory material.

458713

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