Component with cladding surface and method of applying same

Abstract

A slurry pump component is disclosed. The slurry pump component may have a base member fabricated from white iron, and a cladding surface made of a wear resistant material disposed in a tool steel matrix on the base member. The wear resistant material may have a melting point of greater than about 3000° C.

What is claimed is: 
     
         1 . A slurry pump component, comprising:
 a base member fabricated from white iron; and   a cladding surface on the base member,   wherein the cladding surface includes a wear resistant material disposed in a tool steel. matrix, and the wear resistant material has a melting point greater than about 3000° C.   
     
     
         2 . The component of  claim 1 , Wherein the slurry pump component is a throat bush, including:
 a ring-like base with an inner annular surface and an outer annular surface;   a cylindrical collar extending away from the inner annular surface of the ring-like base; and   a conical end opposite the cylindrical collar, wherein the conical end slopes axially inward from the outer annular surface to the inner annular surface,   wherein the cladding surface covers the conical end; and   the cladding surface has a thickness of between about 4 and 12 mm in an area adjacent to the inner annular surface and between about 2 and 8 mm in an area adjacent to the outer annular surface.   
     
     
         3 . The component of  claim 2 , wherein an inner annular surface of the cylindrical collar extends about 1 to 12 inches from the inner annular surface of the ring-like base. 
     
     
         4 . The component of  claim 1 , wherein:
 the slurry pump component is a frame plate liner, including a ring-like base member with an inner annular surface and an outer annular surface;   the cladding surface covers an axial end between the inner annular surface and the outer annular surface of the ring-like base member on one side of the frame plate liner; and   the cladding surface has a thickness of between about 2 and 12 mm.   
     
     
         5 . The component of  claim 1 , wherein the wear resistant material includes at least one of titanium carbide, zirconium carbide, hafnium carbide, or titanium diboride. 
     
     
         6 . The component of  claim 1 , wherein the cladding surface includes titanium carbide disposed in a tool steel matrix. 
     
     
         7 . The component of  claim 6 , wherein the titanium carbide is spherical or crushed. 
     
     
         8 . The component of  claim 1 , wherein the tool steel matrix includes iron and one or more of carbon, manganese, chromium, cobalt, vanadium, tungsten, silicon, sulfur, nickel, or molybdenum. 
     
     
         9 . The component of  claim 1 , wherein a morphology of the wear resistant material is one of agglomerated, agglomerated and sintered, water atomized, gas atomized, or mechanically coated. 
     
     
         10 . The component of  claim 6 , wherein the titanium carbide is present in an amount between about 30 and 70 percent by volume with a remainder being tool steel matrix. 
     
     
         11 . A method of manufacturing a slurry pump component, comprising: laser cladding a base member fabricated from white iron with a cladding material including a wear resistant material and a tool steel matrix, wherein the wear resistant material has a melting point greater than about 300 0 ° C. 
     
     
         12 . The method of manufacturing of  claim 11 , wherein
 the slurry pump component is a throat bush; and   laser cladding the base member includes laser cladding a conical end between an inner annular surface and an outer annular surface of a ring-like base on an opposite side of a cylindrical collar extending away from the inner annular surface of the ring-like base with a cladding thickness of between about 4 and 12 mm in an area adjacent to the inner annular surface and between about 2 and 8 mm in an area adjacent to the outer annular surface.   
     
     
         13 . The method of manufacturing of  claim 12 , wherein laser cladding the base member further includes laser cladding an inner annular surface of the cylindrical collar extending about 1 to 12 inches from the inner annular surface of the ring-like base. 
     
     
         14 . The method of manufacturing of  claim 11 , wherein the slurry pump component is a frame plate liner; and
 laser cladding the base member includes laser cladding an axial end between an inner annular area and an outer annular area of a ring-like member on one end of the frame plate liner.   
     
     
         15 . The method of manufacturing of  claim 11 , wherein the wear resistant material includes at least one of titanium carbide, zirconium carbide, hafnium carbide, or titanium diboride. 
     
     
         16 . The method of manufacturing of  claim 11 , wherein the cladding material consists of titanium carbide and a tool steel matrix. 
     
     
         17 . The method of manufacturing of  claim 16 , wherein the titanium carbide is spherical or crushed. 
     
     
         18 . The method of manufacturing of  claim 11 , wherein the tool steel matrix includes iron and one or more of carbon, manganese, chromium, cobalt, vanadium, tungsten, silicon, sulfur, nickel, or molybdenum. 
     
     
         19 . The method of manufacturing of  claim 16 , wherein the titanium carbide is present in an amount between about 30 and 70 percent by volume with a remainder being tool steel matrix. 
     
     
         20 . A slurry pump, comprising:
 a pump housing;   a throat bush including the slurry inlet inside the pump housing;   a volute located inside pump housing;   an impeller located in an open inner radius of the volute;   a frame plate liner located between the volute and pump housing; and   at least one cladding surface on at least one of the throat bush, volute, impeller, or frame plate liner,   wherein the cladding surface includes a wear resistant material disposed in a tool steel. matrix and having a melting point greater than about 3000° C.   
     
     
         21 . A component, comprising:
 a base member fabricated from white iron; and   a cladding surface on the base member,   wherein the cladding surface includes a wear resistant material disposed in a tool steel matrix, and the wear resistant material has a melting point greater than about 3000° C.   
     
     
         22 . The component of  claim 21 , wherein the component is a slurry pump component.