Method for producing steam generator tubes

Abstract

A method for producing steam generator tubes is provided. The method is intended to allow a technically particularly simple production process and at the same time allow particularly high flexibility with regards to the materials that may be used to achieve a particularly high efficiency of a steam generator. For this purpose, an insert is fixed in slots of a former shaft, the former shaft with the insert is introduced into a steam generator tube, the fixing of the insert on the former shaft is released and the former shaft is removed again from the steam generator tube.

1 - 8 . (canceled) 
     
     
         9 . A method for producing steam generator tubes, comprising:
 fixing an insert in a plurality of grooves of a former shaft;   introducing the former shaft with the insert into a steam generator tube;   releasing the fixing of the insert to the former shaft; and   removing the former shaft again from the steam generator tube.   
     
     
         10 . The method as claimed in  claim 9 , wherein the insert is fixed to the former shaft with a pretension. 
     
     
         11 . The method as claimed in  claim 9 , wherein the plurality of grooves are introduced in a helical shape into the former shaft. 
     
     
         12 . The method as claimed in  claim 11 , wherein the former shaft is rotated out of the steam generator tube. 
     
     
         13 . The method as claimed in  claim 9 , wherein the plurality of grooves are implemented as conical. 
     
     
         14 . The method as claimed in  claim 9 , wherein the insert comprises a plurality of wires. 
     
     
         15 . A steam generator tube, comprising:
 a steam generator tube produced by means of the method as claimed in  claim 9 .   
     
     
         16 . A steam generator, comprising:
 a steam generator tube as claimed in  claim 15 .