Steam turbine rotor shaft

Details Steam turbine rotor shaft Steam turbine rotor shaft

1983-04-12

1986-01-28

Watkins, Donald

Bearings

Rotary bearing

Plain bearing

384276, 384295, 384912, F16C 3304, F16C 3308, F16C 3314

Patent

active

045668108

ABSTRACT:
A steam turbine rotor shaft made of precipitation-hardened forged austenite steel, comprising first, second and succeeding layers of build-up welding provided on an outer surface of a bearing portion of a journal section in the rotor shaft, the first layer being provided by use of a welding rod of Ni base alloy, the second and succeeding layers being provided by use of a welding rod of low alloy steel which layers have better bearing characteristics than those of the austenite steel.

REFERENCES:
patent: 4426162 (1984-01-01), Tsuchiya et al.

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