Method and apparatus for dual coat thermal spraying cylindrical

Electric heating – Metal heating – For deposition welding

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219 7615, 21912147, B23K 904

Patent

active

057960640

ABSTRACT:
Disclosed are a method and apparatus for coating the interior surface of a cylinder wherein separate consumable electrodes are fed to an arc formed between a rotating non-consumable electrode and directing an atomizing gas through the arc formed to carry the molten metal of the consumable electrode to the cylinder wall to coat the wall and wherein a first consumable electrode in introduced in the cylinder bore with a rotating thermal spray head and a second consumable electrode is introduced into the cylinder from an end opposite the rotating non-consumable electrode and wherein either or both consumable electrodes may be utilized to form deposits on the cylinder of mixed or alternative composition.

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patent: 5321224 (1994-06-01), Kamimura et al.
patent: 5442153 (1995-08-01), Marantz et al.
patent: 5466906 (1995-11-01), McCune, Jr. et al.

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