Coated textile machinery parts

Abstract

Disclosed is a method for the coating of textile machinery parts with a composite coating bearing finely divided particles dispersed within a metallic matrix.

What I claim is:  
     
         1 . A textile machinery part having a metallic substrate and a coating formed thereon, said coating consisting essentially of finely divided wear resistant particulate matter with an average particle size of less than one micron dispersed within a metal matrix.  
     
     
         2 . The machinery part according to  claim 1 , wherein said particulate matter is diamond.  
     
     
         3 . The machinery part according to  claim 1 , wherein said machinery part is useful in open-end spinning processing.  
     
     
         4 . The machinery part according to  claim 1 , wherein said machinery part is a combing roll useful in open-end spinning processing.  
     
     
         5 . The machinery part according to  claim 1 , wherein said machinery part is a rotor useful in open-end spinning processing.  
     
     
         6 . The machinery part according to  claim 1 , wherein said machinery part is a rotor shaft useful in open-end spinning processing.  
     
     
         7 . The machinery part according to  claim 1 , wherein said machinery part is useful in ring spinning operations.  
     
     
         8 . The machinery part according to  claim 1 , wherein said machinery part is a ring useful in ring spinning operations.  
     
     
         9 . The machinery part according to  claim 1 , wherein said machinery part is a traveler useful in ring spinning operations.  
     
     
         10 . The machinery part according to  claim 1 , wherein said metal matrix is a nickel alloy.  
     
     
         11 . The machinery part according to  claim 1 , wherein said metal matrix has a hardness value of at least 700 Hv.  
     
     
         12 . The machinery part according to  claim 1 , wherein said wear resistant particulate matter is selected from the group consisting of silicon carbide, boron carbide, aluminum oxide, tungsten carbide, and mixtures thereof.  
     
     
         13 . The machinery part according to  claim 1 , wherein said wear resistant particulate matter is selected from the group consisting of diamond, silicon carbide, boron carbide, aluminum oxide, tungsten carbide, and mixtures thereof in addition to a lubricating particulate matter.  
     
     
         14 . The machinery part according to  claim 1 , wherein said metal matrix is a nickel-phosphorous alloy.  
     
     
         15 . The machinery part according to  claim 14 , wherein said nickel-phosphorous alloy is deposited by an electroless method of deposition.  
     
     
         16 . The machinery part according to  claim 1 , wherein said coating has a portion thereof for contacting a textile yarn during use of said textile machinery part.  
     
     
         17 . A textile machinery part for contacting yarn during processing thereof, said machinery part having a metallic substrate and a coating formed thereon, said coating consisting essentially of finely divided wear resistant particulate matter dispersed within a metal matrix, said particulate matter having an average particle size of less than one micron.  
     
     
         18 . The machinery part according to  claim 17 , wherein said particulate matter is diamond.  
     
     
         19 . The machinery part according to  claim 17 , wherein said diamond has an average particulate size of 75 to 250 nanometers.  
     
     
         20 . The machinery part according to  claim 18 , wherein said nickel-phosphorous alloy is deposited by an electroless method of deposition.  
     
     
         21 . The machinery part according to  claim 17 , wherein said wear resistant particulate matter is selected from the group consisting of diamond, silicon carbide, boron carbide, aluminum oxide, tungsten carbide, and mixtures thereof.  
     
     
         22 . The machinery part according to  claim 17 , wherein said metal matrix is a nickel-phosphorous alloy.  
     
     
         23 . The machinery part according to  claim 17 , wherein said coating has a portion thereof for contacting a textile yarn during use of said textile machinery part.  
     
     
         24 . The machinery part according to  claim 17 , wherein said coating has been subjected to heat treatment at a temperature of at least 200.degree. C.