Cable with low structural elongation

Abstract

A cable ( 211 ) is provided comprising a steel cord ( 212 ) and a polymer material ( 215 ). The steel filaments ( 213 ) of the steel cord ( 212 ) are coated with an adhesive before the penetration of the polymer material ( 215 ). The cable ( 211 ) has a structural elongation less than 0.025% and an E module 4% greater than the E module of the steel cord ( 212 ). These two improvements further decrease the total elongation of the cable at certain load.

1 . A cable comprising a steel cord and a polymer material, wherein the structural elongation of said cable is less than 0.025%. 
   
   
       2 . A cable as claimed in  claim 1 , wherein the E module of said cable is 4% greater than the E module of said steel cord. 
   
   
       3 . A cable as claimed in  claim 1 , wherein characterized in that the polymer filling rate is more than 70%. 
   
   
       4 . A cable as claimed in  claim 3 , wherein the polymer filling rate is more than 90%. 
   
   
       5 . A cable as claimed in  claim 1 , wherein the thickness of the polymer coating is less than 100 μm. 
   
   
       6 . A cable as claimed in  claim 5 , wherein the thickness of polymer coating is less than 100 μm. 
   
   
       7 . A cable as claimed in  claim 1 , wherein said polymer material is a thermoplastic polymer. 
   
   
       8 . A cable as claimed in  claim 7 , wherein said thermoplastic polymer is polyurethane. 
   
   
       9 . A rope comprising at least one cable as claimed in  claim 1 .