METHOD OF PRODUCING BRAKE SHOES WITH LINED WORKING SURFACES Russian patent published in 2011 - IPC B22D19/00

Abstract RU 2427445 C1

FIELD: process engineering.

SUBSTANCE: invention relates to metallurgy. Water-cooled metal mould cavity houses 10 mm-thick plug-in rods made from cold hardening carbamide furan or phenol furan composition. Molten cast iron is filled in metal mould cavity. In 20-30 seconds, after primary crystallised crust on hard metal is formed, split mould halves are moved apart by 2-3 mm. Air gap formed allows heating brake shoe surface to be heated to 850-950°C. Curing at said temperature eliminates formation of chill spot on shoe non-working surfaces.

EFFECT: higher quality of casting with surface corresponding to 4^th-5^th finishing class.

3 cl, 1 dwg, 1 ex

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RU 2 427 445 C1

Authors

Dukovskij Lev Matveevich

Dates

2011-08-27—Published

2010-05-20—Filed