Method for passivating a surface of a workpiece and apparatus for passivating workpieces
OwnerHermann-Josef David, Fabio Cordaroinventors
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Abstract
In order to create a method for passivating a surface of a workpiece, said method enabling a complete and sufficient passivation of the surface of the workpiece in narrow cavities of the workpiece, even in the case of workpieces with complex geometry, it is proposed that the method comprises the following: introducing at least one workpiece into a treatment chamber; providing a passivating agent in the treatment chamber; cyclically changing the pressure in the treatment chamber while the passivating agent is located in the treatment chamber.
Claims15
A method for passivating a surface of a workpiece, comprising the following:
- introducing at least one workpiece into a treatment chamber;
- providing a passivating agent in the treatment chamber;
- cyclically changing the pressure in the treatment chamber while the passivating agent is located in the treatment chamber.
An apparatus for passivating workpieces, comprising
- a treatment chamber for accommodating at least one workpiece and a bath of a passivating agent;
- and
- a pressure changing apparatus for cyclically changing the pressure in the treatment chamber while passivating agent is located in the treatment chamber.
Dependencies are inferred from the claim text.