Repairing apparatus for furnace wall

Details Repairing apparatus for furnace wall Repairing apparatus for furnace wall

1985-10-09

1987-03-17

Beck, Shrive P.

Coating apparatus

Program, cyclic, or time control

Having prerecorded program medium

118696, 118713, 118308, 118317, 219121PL, 219121PU, 219121PV, 427 34, 427423, 264 30, 239 81, 239227, B05B 720, B05B 722

Patent

active

046498583

ABSTRACT:
This invention relates to a repairing apparatus for an industrial furnace wall using a plasma spray gun. The plasma flame of the gun traces the damaged part to be repaired by moving the gun in three-dimensional directions (up-and downwardly, right-and leftwardly, and forwardly and backwardly) relative to the furnace wall to be repaired. Furthermore, the optimum spray distance of the plasma flame follows the unevenness of the furnace wall and the depression extent of a damaged part to be repaired from the sound surface of a furnace wall by changing the mixture ratio of the operation gas for the gun to control the length of the plasma flame.

REFERENCES:
patent: 4107244 (1978-08-01), Ochiai
patent: 4187409 (1980-02-01), Slater
patent: 4218989 (1980-08-01), Fujita
patent: 4291217 (1981-09-01), Braun
patent: 4301998 (1981-11-01), Rodway
patent: 4337897 (1982-07-01), Hoffken

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