Process and apparatus for continuous surface treatment

Details Process and apparatus for continuous surface treatment Process and apparatus for continuous surface treatment

1995-10-16

1998-02-10

Valentine, Donald R.

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

134 15, 134 34, 134 41, 134122R, C03C 2300, B08B 102, B08B 304, C23G 102

Patent

active

057164550

ABSTRACT:
A process for continuous surface treatment, in particular for pickling and cleaning of metal strip in a treatment chamber through which the strip runs in a roughly horizontal path and to which a treatment liquid, in particular pickling liquid, is fed. An increased local shearing force is applied between the surface to be treated and the treatment liquid, by passing the strip through a constriction. In addition the invention is directed to a device for implementation of the process, characterized by, in particular, several processing stations such as venturi modules being provided in the treatment chamber which cause an increase in the shearing force between the strip and the treatment liquid.

REFERENCES:
patent: 4270317 (1981-06-01), Kurie
patent: 4388169 (1983-06-01), Nagira et al.
patent: 4807653 (1989-02-01), Cipriano et al.
patent: 4920995 (1990-05-01), Seiz et al.
patent: 4996998 (1991-03-01), Seiz et al.
patent: 5179967 (1993-01-01), Mattiussi

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