Method for producing pieces having a modified surface
AssigneeBehr GmbH & Co.
InventorsSnjezana Boger, Peter Englert, Mathias Pfitzer, Ingo Trautwein, Sabine Sedlmeir
Life of this patent
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Abstract
The invention relates to a method for modifying piece surfaces consisting in bringing pieces into contact with at least one type of a modifying agent in such a way that the modification of the surface is carried out.
Claims5
A surface-modified workpiece, made from a metal and/or one or more alloys, produced by the process comprising the steps of:
- providing the workpiece which is to be modified, and treating this workpiece with at least one modifying agent to obtain the surface-modified workpiece, the workpiece to be modified which is provided being at a temperature of from 40 to 700° C., in particular from 80 to 550° C., and the at least one modifying agent being at a temperature of at least −200° C., in particular at least 0° C., and at most 100° C., in particular at most 80° C.
An apparatus for cohesively joining at least two workpieces, having a temperature-control chamber and a device arranged in or on the temperature-control chamber for applying a surface-modifying agent to at least one workpiece, wherein the apparatus is configured to operate including the steps of:
- a) providing the workpieces,
- b) cohesively joining the workpieces to one another, and
- c) surface-modifying at least one of the workpieces, in which steps b) and c) are carried out together, and
- wherein step c) is carried out by:
- providing the workpiece which is to be modified and treating this workpiece with at least one modifying agent to obtain the surface-modified workpiece, the workpiece to be modified which is provided being at a temperature of from 40 to 700° C., in particular from 80 to 550° C., and the at least one modifying agent being at a temperature of at least −200° C., in particular at least 0° C., and at most 100° C., in particular at most 80° C.
Dependencies are inferred from the claim text.