✔ 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
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