Water Cooled Roll with Heat Resistant Arbor Design

Abstract

A water-cooled furnace roll has a hollow rotating arbor, having cooling fluid passages formed therein, wherein the arbor is formed from a heat resistant centrifugally cast alloy, and a plurality of annular tires spaced along said arbor and secured to the arbor, wherein the spaces between the tires is adapted to receive refractory material to insulate the arbor.

1 . A water-cooled furnace roll comprising: 
 a hollow rotating arbor, having cooling fluid passages formed therein, wherein the arbor is formed from a heat resistant centrifugally cast alloy; and    a plurality of annular tires spaced along said arbor and secured to the arbor, wherein the spaces between the tires is adapted to receive refractory material to insulate the arbor.    
   
   
       2 . The roll of  claim 1  wherein each annular tire has an outer work contacting surface and an inner bore sized to receive the arbor, and a plurality of recesses adjacent said inner bore on opposite sides of the tire, wherein each recess is adapted to receive a locking member therein for securing the tire to the arbor  
   
   
       3 . The roll of  claim 2  wherein each tire recess has a pair of planar abutment walls adapted to abut against the locking member and a back wall extending between the abutment walls, each said abutment wall extending in a radial direction and extending parallel to a longitudinal axis of the tire and to a longitudinal axis of the work transporting roll.  
   
   
       4 . The roll of  claim 1  further including refractory material connected to the arbor between the tires.  
   
   
       5 . The roll of  claim 1  wherein each said tire is tapered inwardly from an outermost work contacting surface toward the arbor.  
   
   
       6 . The roll of  claim 1  wherein the arbor is formed from a heat resistant centrifugally cast high performance alloy under the ASTM A297 and ASTM A608 standard.  
   
   
       7 . The roll of  claim 1  wherein the arbor is formed from one of grades HH, HK and HF alloy material.  
   
   
       8 . The roll of  claim 1  wherein the arbor is formed from HF grade alloy material.  
   
   
       9 . The roll of  claim 1  wherein the arbor is formed from at least one of a Heyer '801 alloy, an English '107 alloy, an Avery'265 alloy, an Ornitz '594 alloy, and an Ornitz '998 alloy.  
   
   
       10 . An arbor for a water cooled roll of a roller hearth furnace, the arbor configured to have a plurality of spaced tires with refractory insulation there between, and including internal passages for cooling fluid, the improvement comprising wherein the arbor is formed from a heat resistant centrifugally cast alloy.  
   
   
       11 . The arbor of  claim 10  wherein the arbor is formed from a heat resistant centrifugally cast high performance alloy under the ASTM A297 and ASTM A608 standard.  
   
   
       12 . The arbor of  claim 10  wherein the arbor is formed from one of grades HH, HK and HF alloy material.  
   
   
       13 . The arbor of  claim 10  wherein the arbor is formed from HF grade alloy material.  
   
   
       14 . The roll of  claim 1  wherein the arbor is formed from at least one of a Heyer '801 alloy, an English '107 alloy, an Avery'265 alloy, an Ornitz '594 alloy, and an Ornitz '998 alloy.  
   
   
       15 . A water-cooled roll for transporting material through a furnace, the roll comprising: 
 a hollow rotating arbor, wherein the arbor is formed from a heat resistant centrifugally cast alloy;    a water supply pipe positioned within said arbor spaced from the inner walls thereof by a plurality of spacers on an outer periphery of said pipe to create an annular space there between;    a plurality of annular tires spaced along said arbor, each said tire including an annular body having an outer work contacting surface and an inner bore sized to receive said arbor therein; and    a plurality of locking bars attached to said arbor, each said locking bar extending into one said recess of one said tire.    
   
   
       16 . The roll of  claim 15  wherein the arbor is formed from a heat resistant centrifugally cast high performance alloy under the ASTM A297 and ASTM A608 standard.  
   
   
       17 . The roll of  claim 15  wherein the arbor is formed from one of grades HH, HK and HF alloy material.  
   
   
       18 . The roll of  claim 15  wherein the arbor is formed from HF grade alloy material.  
   
   
       19 . The roll of  claim 15  wherein the arbor is formed from at least one of a Heyer '801 alloy, an English '107 alloy, an Avery'265 alloy, an Ornitz '594 alloy, and an Ornitz '998 alloy.  
   
   
       20 . The roll of  claim 1  wherein the arbor is formed from a MO RE 1 alloy.