Method for producing a liquid guidance device

Abstract

A method for producing a liquid-conducting device made of aluminum including a functional surface made of anodized aluminum. A surface of a strip- or layer-shaped aluminum sheet is provided with a masking during a masking phase for producing a processing on the surface of the aluminum sheet and in its structure. The aluminum sheet is processed in an electrolytic process for realizing a functional surface, which is provided with an aluminum oxide layer, on the processing surface, a body surface of the liquid-conducting device, which includes at least one processing surface or one functional surface, being sized as a component of the aluminum sheet during a sizing phase, the liquid-conducting device being separated from the strip- or layer-shaped aluminum sheet during a separating phase.

1 . A method for producing a liquid-conducting device made of aluminum sheet, in particular as a component of containers or container parts, the liquid-conducting device comprising a functional surface made of anodized aluminum,
 wherein   a surface of a strip- or layer-shaped aluminum sheet is provided with a masking during a masking phase for producing a processing surface defined in its position on the surface of the aluminum sheet and in its structure,   the aluminum sheet being processed during a processing phase in an electrolytic process for realizing a functional surface, which is provided with an aluminum oxide layer, on the processing surface,   a body surface of the liquid-conducting device which comprises at least one processing surface or one functional surface, being sized as a component of the aluminum sheet during a sizing phase,   the liquid-conducting device being separated from the strip- or layer-shaped aluminum sheet during a separating phase.   
     
     
         2 . The method according to  claim 1 , wherein the masking is realized as a permanent or temporary masking. 
     
     
         3 . The method  claim 1 , wherein the processing phase is performed before or after the sizing phase. 
     
     
         4 . The method  claim 1 , wherein the sizing phase is performed simultaneously with the separating phase. 
     
     
         5 . The method  claim 1 , wherein the body surface is sized by realizing a formed area comprising the processing surface or the functional surface. 
     
     
         6 . The method according to  claim 1 , wherein the separating phase is performed after the sizing phase. 
     
     
         7 . The method according to  claim 6 , wherein the separating phase is performed after the sizing phase and before the processing phase. 
     
     
         8 . A liquid-conducting device made of aluminum sheet comprising a functional surface made of anodized aluminum, the functional surface forming merely a partial surface of a body surface of the liquid-conducting device. 
     
     
         9 . The liquid-conducting device according to  claim 8 , wherein the functional surface is asymmetric. 
     
     
         10 . The liquid-conducting device according to  claim 8 , wherein the liquid-conducting device is produced by forming a sheet blank. 
     
     
         11 . The liquid-conducting device according to  claim 8 ,
 wherein the liquid-conducting device is realized as a container part.   
     
     
         12 . The liquid-conducting device according to  claim 8 , wherein the liquid-conducting device ( 14 ) forms a component of a container part. 
     
     
         13 . The liquid-conducting device according to  claim 12 , wherein the liquid-conducting device is realized as a container closing device disposed on a container lid. 
     
     
         14 . The liquid-conducting device according to  claim 8 , being realized as a container.