Plugs for use in piercing and elongating mills

Details Plugs for use in piercing and elongating mills Plugs for use in piercing and elongating mills

B - Operations, Transporting

32

B

80/13, 117/58

B32B 15/01 (2006.01) B21B 19/04 (2006.01) B21B 25/00 (2006.01) B21B 17/02 (2006.01)

Patent

CA 1147615

ABSTRACT OF THE DISCLOSURE A plug for use in a piercing and elongating mill characterized in that a layer of powder consisting essentially of iron oxides, such as Fe0, Fe304, Fe203 or mixtures thereof is formed on the surface of the plug by spraying said powder in a molten state. The powder may also contain oxides of chromium, nickel, cobalt, copper, manganese and alloys thereof. This plug has excellent durability and better insulating and lubricating properties than those of the prior art plug.

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