✔ Small roll centrifugal casting producer mostly use horizontal spun cast, why?

• Equipment maintenance cost lower than vertical equipment

• Lead time is shorter

• More flexible, can produce a variety of rolls

• Operation tools applied to both static and horizontal spun cast can be shared.

✔ Horizontal Spun Working Process:

• Chill mold inner wall is covered by silica or aluminum refractory coatings

• Chill mold keeps rotating; inner pull achieves multiple gravity value

• The pre-calculated volume of molten iron is poured into mold

• By measurement of infrared thermometer, machine stops as soon as molten iron of outer shell is solidified

• Casting shell together with chill mold removed from casting machine

• Barrel chill mold is assembled with roll neck sand mold

• Core filling

✔ The edges of spun cast roll

• Various outer shell of barrel is available: AIC, HiCr, TSS, HSS, CE

• Higher hardness can be achieved

• Better wear resistance

• Fast solidification, fine grain structure

• Hardness drop of work layer smaller

• Better strength of core material, better mechanical properties

• Core material (SG) bending strength & tensile strength increased

✔ Comparison of work layer drop