METHOD OF MANUFACTURING ABRADABLE MATERIAL Russian patent published in 1995 - IPC

Abstract RU 2039631 C1

FIELD: powder metallurgy. SUBSTANCE: method of manufacturing abradable material for sealing radial gaps of gas turbines includes mixing components, granulating on a binder, nickel plating till receiving granules of 0,25-0,8 mm filling up cellular nucleus with further sintering in vacuum or protecting agent. Granules are composed of (mass per cent) chrome 1,5-4,5, iron 0,01-0,1, nickel the rest. Method permits to receive material of abradability 3,4-4,5 times higher and erosion resistance 30-40 per cent higher than outstanding material. EFFECT: enhanced quality. 1 tbl

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RU 2 039 631 C1

Authors

Televnyj S.T.

Varfolomeeva R.T.

Migunov V.P.

Dates

1995-07-20Published

1993-08-27Filed