A method for strengthening cast iron rolls
A cast iron roll and roll surface technology, which is applied in the strengthening field of cast iron rolls, can solve the problems of large heat input, incomplete strengthening, poor appearance, etc.
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Embodiment 1
[0039] Use absolute ethanol to clean the surface of the angle steel roll to remove impurities such as oil stains; degrease the surface of the angle steel roll; prepare the first alloy powder and the second alloy powder respectively, and the components of the first alloy powder are respectively according to mass percentage: C : 0.30%, Si: 0.95%, Cr: 5.05%, Mo: 1.35%, the balance is Fe, the particle size of the first alloy powder is 135-325 mesh; the components of the second alloy powder are respectively : C: 0.30%, Si: 0.95%, Cr: 5.05%, Mo: 1.35%, V: 0.93%, the balance is Fe, the particle size of the second alloy powder is 135 ~ 325 mesh; adopt coaxial powder feeding to cast iron The angle steel roll is subjected to the first laser cladding, and the first alloy layer is formed on the roll surface. The parameters of the first laser cladding are: the laser spot is a rectangular spot of 2×14mm, the scanning power is 3800W, and the scanning speed is 1000mm / min, the overlapping rat...
Embodiment 2
[0042] Use absolute ethanol to clean the surface of the angle steel roll to remove impurities such as oil stains; degrease the surface of the angle steel roll; prepare the first alloy powder and the second alloy powder respectively, and the components of the first alloy powder are respectively according to mass percentage: C : 0.35%, Si: 1.05%, Cr: 5.20%, Mo: 1.50%, the balance being Fe, the particle size of the first alloy powder is 135-325 mesh; the components of the second alloy powder are respectively : C: 0.35%, Si: 1.05%, Cr: 5.20%, Mo: 1.50%, V: 1.16%, the balance is Fe, the particle size of the second alloy powder is 135 ~ 325 mesh; adopt coaxial powder feeding to cast iron The angle steel roll is subjected to the first laser cladding, and the first alloy layer is formed on the roll surface. The parameters of the first laser cladding are: the laser spot is a rectangular spot of 2×14mm, the scanning power is 4000W, and the scanning speed is 1200mm / min, the overlap rate...
Embodiment 3
[0044] Use absolute ethanol to clean the surface of the angle steel roll to remove impurities such as oil stains; degrease the surface of the angle steel roll; prepare the first alloy powder and the second alloy powder respectively, and the components of the first alloy powder are respectively according to mass percentage: C : 0.30%, Si: 0.95%, Cr: 5.05%, Mo: 1.35%, the balance is Fe, the particle size of the first alloy powder is 135-325 mesh; the components of the second alloy powder are respectively : C: 0.35%, Si: 1.05%, Cr: 5.20%, Mo: 1.50%, V: 1.16%, the balance is Fe, the particle size of the second alloy powder is 135 ~ 325 mesh; adopt coaxial powder feeding to cast iron The angle steel roll is subjected to the first laser cladding, and the first alloy layer is formed on the roll surface. The parameters of the first laser cladding are: the laser spot is a rectangular spot of 2×14mm, the scanning power is 4000W, and the scanning speed is 1200mm / min, the overlap rate is...
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