Method of manufacturing a rocket combustion chamber

Details Method of manufacturing a rocket combustion chamber Method of manufacturing a rocket combustion chamber

1983-06-01

1985-04-02

Sebastian, Leland A.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making composite or hollow article

419 8, B22F 700

Patent

active

045086800

ABSTRACT:
The present invention is directed particularly to an improved method using owder metallurgy for the manufacture of the grooved cooling wall of a liquid-propellant rocket combustion chamber. The surface of an inner cylinder constituting the cooling wall is formed with cooling grooves, and these grooves are densely filled up with a filler such as paraffin wax. Thereafter, metal powder which will provide an outer cylinder is compression-molded to a predetermined thickness around the inner cylinder. This metal powder is the same material as the material of the inner cylinder. After the paraffin wax which is the filler is evaporated and removed, the compression-molded metal powder body is sintered in a furnace. During this sintering heat treatment, the inner and outer cylinders are rigidly joined together by the sintering reaction between the atoms of the inner cylinder and the atoms of the metal powder.

REFERENCES:
patent: 3531848 (1970-10-01), Gripshover et al.
patent: 3549357 (1970-12-01), Osborne
patent: 4431449 (1984-02-01), Dillon et al.

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