Method for producing a welded-brazed combustion chamber

Details Method for producing a welded-brazed combustion chamber Method for producing a welded-brazed combustion chamber

1999-09-08

2000-08-22

Mills, Gregory

Electric heating

Metal heating

By arc

2989001, B23K 1504

Patent

active

061075965

ABSTRACT:
A combustion chamber for a liquid-propellant rocket engine includes an injector head jointed to a combustion chamber casing having an exhaust head on a nozzle output. The casing is made of a steel jacket and a bronze-steel internal fire wall, which are joined with each other and contain shells connected in series. The exhaust head with shells of the casing, jointed to the exhaust head, are brazed using a solder on the basis of nickel, chromium and manganese. Parts of the injector head and other members of the combustion chamber casing are brazed using a copper-silver solder. Shells of the fire wall are connected by an electron-beam welding, directing an electron beam into axial gaps left while brazing between shells of the jacket. The shells of the jacket are then sequentially connected by an automatic gas-shielded arc welding through corresponding ring spacers.

REFERENCES:
patent: 3224678 (1965-12-01), Rosman
patent: 3418707 (1968-12-01), Emerson
patent: 5786559 (1998-07-01), Ottino et al.
G.G. Gakhun et al, "Liquid-Propellant Rocket Engine Design and Engineering", Moscow, 1989, p. 114, Fig. 6,23.
I.I. Gorev, "Outlines of Liquid-Propellant Rocket Engine Production", Mashinostroyeniye, Moscow, 1969, pp. 10-13, 50-58, 61-62, 68-69, 81, 91.

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