Ultra-fine grain high-nickel-chromium molybdenum infinitely chilled ductile cast iron and composite roll thereof
A technology of infinite chilled cast iron and ultra-fine grains, applied in the direction of rolling, metal rolling, metal rolling, etc., can solve the problems of insufficient heat crack resistance and other problems, and achieve the benefits of improving surface quality, rolling volume, and reducing The effect of rolling costs
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Embodiment 1
[0015] Example 1: Ultra-fine grain high nickel-chromium-molybdenum infinite chilled cast iron, adding 3% by weight (calculated as pure substance) of antimony to the molten iron composed of nickel-chromium-molybdenum infinite chilled cast iron GB / T1504-91.
Embodiment 2
[0016] Embodiment 2: ultrafine-grained high nickel-chromium-molybdenum infinite chilled cast iron, in GB / T1504-91 nickel-chromium-molybdenum infinite chilled cast iron composition iron liquid, add the vanadium of 2% by weight (in terms of pure matter) and 0.5% by weight of Vanadium (as pure substance).
Embodiment 3
[0017] Embodiment 3: Referring to Example 2, the added weight of antimony is 1% (in pure matter), and the added weight of vanadium is 0.8% (in pure matter).
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