Wide and thin specification NM450 wear-resistant steel plate and fabrication method
A manufacturing method and thin gauge technology, applied in the field of metallurgy, can solve the problems of difficulty in meeting large-scale, lightweight and long-life, not wide width, not thin thickness, etc., and achieve good development value and market prospects, good unevenness. , the effect of high wear resistance
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Embodiment 1
[0022] This embodiment takes the manufacture of a wide and thin wear-resistant steel plate with a thickness of 6mm, a width of 2600-3100mm, and a Brinell hardness of 450HB as an example. Its chemical composition and mass percentage are as follows: C: 0.19%, Si: 0.33%, Mn: 1.10%, P : 0.011%, S: 0.0020%, Cr: 0.34%, Ti: 0.015%, B: 0.0016%, and the rest are Fe and unavoidable impurities.
[0023] The manufacturing method includes hot metal desulfurization pretreatment-converter smelting-LF+RH refining-continuous casting-slab heating-phosphorus removal-rolling-air cooling-flaw detection-shot blasting-quenching-tempering-strong straightening-cutting-sampling-spraying Print logo-inspection-warehousing.
[0024] The molten steel smelted according to the above ratio is vacuum degassed and then continuously cast. The thickness of the continuous casting slab is 150mm. The steel slab is heated to a furnace temperature of 1220°C. The final rolling thickness of the steel plate is 6mm and t...
Embodiment 2
[0026] This embodiment takes the manufacture of a wide and thin wear-resistant steel plate with a thickness of 6mm, a width of 2600-3100mm, and a Brinell hardness of 450HB as an example. Its chemical composition and mass percentage are as follows: C: 0.20%, Si: 0.34%, Mn: 1.08%, P : 0.010%, S: 0.0015%, Cr: 0.35%, Ti: 0.018%, B: 0.0015%, and the rest are Fe and unavoidable impurities.
[0027] The manufacturing method includes hot metal desulfurization pretreatment-converter smelting-LF+RH refining-continuous casting-slab heating-phosphorus removal-rolling-air cooling-flaw detection-shot blasting-quenching-tempering-strong straightening-cutting-sampling-spraying Print logo-inspection-warehousing.
[0028] The molten steel smelted according to the above ratio is vacuum degassed and then continuously cast. The thickness of the continuous casting slab is 150mm. The steel slab is heated to a furnace temperature of 1230°C. The final rolling thickness of the steel plate is 6mm and t...
Embodiment 3
[0030]This embodiment takes the manufacture of a wide and thin wear-resistant steel plate with a thickness of 6mm, a width of 2600-3100mm, and a Brinell hardness of 450HB as an example. Its chemical composition and mass percentage are as follows: C: 0.19%, Si: 0.34%, Mn: 1.09%, P : 0.010%, S: 0.0020%, Cr: 0.33%, Ti: 0.017%, B: 0.0017%, and the rest are Fe and unavoidable impurities.
[0031] The manufacturing method includes hot metal desulfurization pretreatment-converter smelting-LF+RH refining-continuous casting-slab heating-phosphorus removal-rolling-air cooling-flaw detection-shot blasting-quenching-tempering-strong straightening-cutting-sampling-spraying Print logo-inspection-warehousing.
[0032] The molten steel smelted according to the above ratio is vacuum degassed and then continuously cast. The thickness of the continuous casting slab is 150mm. The steel slab is heated to a furnace temperature of 1220°C. The final rolling thickness of the steel plate is 6 mm and t...
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