System for phosphating of objects to be treated

Details System for phosphating of objects to be treated System for phosphating of objects to be treated

1983-01-05

1984-09-04

Silverberg, Sam

Metal treatment

Compositions

Heat treating

118423, 118429, C23F 710

Patent

active

044695314

ABSTRACT:
A system for phosphating objects, such as automobile bodies, having bottom portions of complicated configuration, the system including a tank for holding a phosphating liquid, a mechanism for generating recirculation of the fluid in the tank, a conveyor mechanism for continuously conveying the objects from an inlet side to an outlet side in such a manner that the objects are fully dipped into the fluid, the tank having a sloped bottom in the inlet side and the conveyor mechanism having the same inclination of that of the sloped bottom of the tank, a gush-type spraying nozzle mechanism arranged on the sloped bottom portion of the tank and connected to the recirculation mechanism for generating a flow of fluid from the sloped bottom of the tank towards the bottom portions of each object conveyed, the direction of the flow being inclined rearwardly with respect to a vertical line in the direction of movement of the objects by the conveyor mechanism at an inlet side portion thereof and also inclined upwardly with respect to the surface of the sloped bottom of the tank.

REFERENCES:
patent: 4196023 (1980-04-01), Rowe
patent: 4287004 (1981-09-01), Murakami

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