Improved nickel chromium molybdenum inlimited cold hard cast-iron for roller and its compound roller
An infinitely chilled cast iron, nickel-chromium-molybdenum technology, applied in the field of composite rolls, can solve the problems of affecting the surface quality of rolled strips, poor thermal crack resistance, and affecting the production efficiency of rolling mills, achieving improved thermal crack resistance, The effect of reducing the labor intensity of operation and improving the surface quality
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Embodiment 1
[0016] Embodiment 1: In GB / T1504-91 nickel-chromium-molybdenum infinite chilled cast iron (IV) molten iron, add 0.05wt% (in pure substance) of boron-iron alloy and 0.8% (in pure substance) of niobium-iron alloy.
Embodiment 2
[0017] Example 2: As in Example 1, 0.07wt% (in pure matter) of boron-iron alloy and 1wt% (in pure matter) of niobium-iron alloy were added respectively.
Embodiment 3
[0018] Embodiment 3: As in Embodiment 1, 0.09wt% (calculated as pure substance) of boron-iron alloy and 1.3wt% (calculated as pure substance) of ferroniobium alloy were added respectively.
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