Method for Producing Carbon Fibers

Abstract

A method for producing a carbon fiber bundle includes the acts of: providing at least one precursor, mechanically stabilizing the at least one precursor, and subsequently introducing the mechanically stabilized precursor into at least one thermal treatment device for converting the at least one precursor into at least one carbon fiber bundle. A device for producing a carbon fiber bundle has at least one oxidation furnace and a downstream carbonizing device for carbonizing a precursor to form the carbon fiber bundle, wherein a stabilizing device for mechanically stabilizing the precursor, which is introduced into the oxidation furnace, is connected upstream of the at least one oxidation furnace.

What is claimed is: 
     
         1 . A method for producing a carbon fiber bundle, the method comprising the acts of:
 a) providing at least one precursor;   b) mechanically stabilizing the at least one precursor; and   c) subsequently introducing the mechanically stabilized precursor into at least one heat treatment device in order to convert the at least one precursor into at least one carbon fiber bundle.   
     
     
         2 . The method according to  claim 1 , wherein the providing act comprises the act of unwinding the at least one precursor from at least one package. 
     
     
         3 . The method according to  claim 1 , wherein the mechanically stabilizing act takes place immediately before the subsequent introduction into the at least one heat treatment device. 
     
     
         4 . The method according to  claim 2 , wherein the mechanically stabilizing act takes place immediately before the subsequent introduction into the at least one heat treatment device. 
     
     
         5 . The method according to  claim 1 , wherein the mechanically stabilizing act comprises the act of entangling individual filaments of the precursor. 
     
     
         6 . The method according to  claim 4 , wherein the mechanically stabilizing act comprises the act of entangling individual filaments of the precursor. 
     
     
         7 . A device for producing a carbon fiber bundle, comprising:
 at least one oxidation furnace;   a downstream carbonizing device for carbonizing a precursor to form the carbon fiber bundle; and   a stabilizing device for mechanically stabilizing the precursor introduced into the oxidation furnace, the stabilizing device being connected upstream of the at least one oxidation furnace.   
     
     
         8 . The device according to  claim 7 , wherein the stabilizing device is arranged immediately upstream of the at least one oxidation furnace.