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Centrifugal composite, normal ductile iron rolls and roll rings

Adding more Ni and Mo alloy to ductile cast iron can obtain excellent pearlite, bainite and martensite matrix structure, while graphite is spherical in shape, with good thermal conductivity and high tensile strength. By changing the chemical composition and heat treatment process of bainite, martensite and needle-like ductile iron, very dense network primary cementite can be obtained to improve wear resistance.

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  • Product Description
    • Commodity name: Centrifugal composite, normal ductile iron rolls and roll rings
    • Commodity ID: 1242871222186430464

    Adding more Ni and Mo alloy to ductile cast iron can obtain excellent pearlite, bainite and martensite matrix structure, while graphite is spherical in shape, with good thermal conductivity and high tensile strength. By changing the chemical composition and heat treatment process of bainite, martensite and needle-like ductile iron, very dense network primary cementite can be obtained to improve wear resistance.

    Adding more Ni and Mo alloy to ductile cast iron can obtain excellent pearlite, bainite and martensite matrix structure, while graphite is spherical in shape, with good thermal conductivity and high tensile strength. By changing the chemical composition and heat treatment process of bainite, martensite and needle-like ductile iron, very dense network primary cementite can be obtained to improve wear resistance.
     
     

    Mechanical properties

    centrifugal compounding

    normal law

    roll surface hardness

    HSD 50-80

    HSD 45-70

    roll neck hardness

    HSD 35-48

    HSD 35-55

    core tensile strength

    ≥ 450MPa

    ≥ 300MPa

    Category

    Hardness (HSD)

    C

    Si

    Mn

    Ni

    Cr

    Mo

    Mg

    Ductile I

    50-65

    2.9/3.4

    1.2/1.8

    0.4/1.0

    0.5/1.0

    0.2/0.6

    0.2/0.6

    ≥ 0.04

    Ductile II

    50-70

    2.9/3.4

    1.2/1.8

    0.4/1.0

    1.0/3.0

    0.2/1.2

    0.2/0.6

    ≥ 0.04

    bainite

    60-80

    3.0/3.5

    1.2/1.8

    0.4/1.0

    3.0/4.5

    0.2/1.2

    0.6/1.0

    ≥ 0.04

    For all kinds of continuous rolling mill roughing, rolling, bar finishing, profile mill, strip mill finishing two roll and support roll, can also be used for the production of stainless steel hot strip mill.

     

    Key words:
    • 离心复合、常法球墨铸铁轧辊和辊环

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