POWDER MATERIAL FOR SPRAYING COATINGS AND RE-USABLE CASTING MOULD Russian patent published in 1994 - IPC

FIELD: casting of aluminum alloys. SUBSTANCE: powder material has, in % by mass, : 15-30 of chrome, 0.1-1.0 of yttrium , and 69,9-84,9 of nickel and/or cobalt. The re-usable casting mould has multi- layered covering with nickel layer provided by spraying powder material containing, in % by mass,: 15-30 of chrome, 0.1-1.0 of yttrium, 69.9-84.9 of nickel and/or cobalt, and ceramic layer containing 98-85 of zirconium oxide and 2-15 of yttrium oxide. The mould is made of copper, copper alloy or pig iron, steel or special ferrum based alloy. EFFECT: improved functional capabilities. 3 cl, 1 tbl