The strength of the spheroidal graphite(SG) or nodular cast  iron is a result of a change in morphoglgy of flake graphite into  graphite spheroids. The lower surface area to volume of the spheroids increases its fracture toughness and hence reduces  crack propagation. SG iron is an excellent conductor of heat  and increases the resistance to fire-cracks by reducing the  locally induced thermal stresser. The impact resistance is also  increased to that of flake graphite iron.

HSS rolls working layer is a high carbon alloy steel containing Cr,Mo,W,V,Nb.The rolls have high hardness and good wear resistance.

The composition and subsequent heat treatment ensure the hardness of the working layer will reach to 80/85 hsc with uniform hardness throughout the working layer. This type of rolls is used in finishing applications for increased campaign times and better surface finish.

Cemented carbide rolls have good heat conductivity and they are featured by small hardness decrease under high temperature condition, thermal fatigue resistance, good wear resistance and high strength etc., which are not possessed by other materials. The rolls are primarily applied in high speed wire line, Kocks three roll mill, seamless pipe stretch reducing mill, three dimensional rolls for cold-rolled ribbed steel bar, and composite roll for hot-rolled bar screw thread steel etc.

Our ceramic roll choosing the high purity fused quartz as material, on the basis of introduction the foreign advanced molding and processing manufacturing line, our quartz ceramic roller may be used as the key part component of the floating glass furnace which may bear and transit the glass.