Pairs of valve members for sliding gate valves for...

Details Pairs of valve members for sliding gate valves for... Pairs of valve members for sliding gate valves for...

B - Operations, Transporting

22

D

39/113

B22D 41/08 (2006.01) B22D 41/28 (2006.01) F16K 27/04 (2006.01)

Patent

CA 1239539

ABSTRACT The two valve members of a sliding gate valve for pouring metal melts are made of abrasion-proof material and material which is relatively subject to abrasion, at least on its sliding surface, respectively. In use, wear grooves or recesses are formed in the sliding surface of the valve member, which is subject to abrasion and these grooves are filled with a mixture of abraded particles and metal particles or droplets which form a lasting seal between the sliding surfaces of the two valve members. The valve members according to this invention provide an improved seal along the sliding surfaces of the valve over an extended period of time. As well, this invention provides a method of producing such a sealing arrange- ment between the valve members.

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