Preparation process for steel-cast roller
A roll and process technology, which is applied in the field of steel casting roll configuration technology, can solve problems such as spalling, increased roll manufacturing cost, and low production rate, and achieves good wear resistance and toughness, strong accident resistance, and reduced manufacturing costs. Effect
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[0009] A configuration process for cast steel back-up rolls, wherein the material of the working layer of the back-up roll is high-alloy steel, and the core material of the roll is graphite steel; the high-alloy steel in the working layer of the roll is completely metallurgically bonded to the graphite steel at the core of the roll;
[0010] The chemical composition weight percent of the high alloy steel is: C0.5%, Si0.5%, Mn0.5-0.6%, Cr4.5%, Ni1.1%, Mo0.7%, Re0.04%, P≤0.03%, S≤0.03%, the balance is Fe;
[0011] The chemical composition weight percent of described graphite steel is: C1.5%, Si1.8%, Mn0.5%, Ni0.6%, Cr<0.2%, Mo<0.3%, P<0.03%, S<0.03 %, the balance is Fe.
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