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珠钢薄规格热轧钢板生产技术 总被引:4,自引:1,他引:3
介绍了2006年珠钢薄规格热轧板的生产情况.通过对薄规格热轧板轧制技术的研究,进而开发了薄规格热轧板生产的成套技术,实现了薄规格热轧板的高比例、高质量、高效化的生产,普通碳素结构钢板厚度≤2.0 mm的比例达到70%以上,≤1.5 mm的比例达到35%以上;集装箱用钢板厚度≤2.0 mm的比例达到70%以上,≤1.6 mm的比例达到40%以上;屈服强度345 MPa级的集装箱用钢板极限厚度为1.4 mm,屈服强度550 MPa级的高强汽车结构钢板极限厚度为1.8 mm,屈服强度700 MPa级的超高强耐候钢板极限厚度为2.0 mm. 相似文献
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介绍了珠钢原CVC辊形工作辊与平辊形支撑辊配置使用存在的问题,分析并指出平辊形支撑辊应用辊端部应力过于集中.研究和开发了与CVC辊形工作辊相配套的支撑辊CVC辊形技术,降低了辊耗,增强带钢板形控制能力,促进了薄规格热轧板的生产. 相似文献
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珠钢薄规格热轧带钢轧制技术研究 总被引:1,自引:0,他引:1
介绍了珠钢薄板坯连铸连轧生产线薄规格的生产情况,分析了影响薄规格生产的主要因素.通过对薄规格轧制技术的研究,开发了批量生产薄规格的技术措施,实现了高比例的薄规格带钢生产. 相似文献
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超薄规格热轧带钢生产技术 总被引:1,自引:0,他引:1
薄规格热轧宽带钢以热带冷的趋势正逐渐扩大,具有广阔的应用前景,但生产难度大。珠钢通过严格控制钢水成分、温度的波动变化范围,定期检测铸坯对中、楔形、镰刀弯、温度均匀性来促进连铸、加热炉工序工艺及设备精度的持续改进,解决铸坯楔形、镰刀弯、变形抗力不均等问题;通过优化加热炉炉膛气氛、改善炉辊运行状况,调整工作辊冷却,合理设计轧制计划,解决过早发生麻面质量缺陷问题;发明预调板带对中度的轧钢操作法,大幅降低卡钢、甩尾事故和浪形缺陷;通过设计花纹辊新花形、选用合适轧辊材质及轧辊凸度,解决超薄花纹板生产难脱槽、易崩口和易中间浪的问题;最终实现了超薄规格热轧宽带钢大批量生产,h=1.0mm~1.35mm普通碳素结构钢超薄规格热轧板比例达到30%,h=1.0mm~2.0mm 超薄规格热轧花纹板比例达到74%,h=1.0mm~1.8mm超薄规格热轧花纹板比例达到28%。 相似文献
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介绍了珠钢电炉-CSP流程的主要设备性能、工艺特点和薄规格产品的生产情况,并结合生产的实际,从多个方面详细论述了珠钢采取一系列控制技术和措施后,实现了大批量、高品质的薄规格产品生产。 相似文献
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热轧轧制润滑在珠钢CSP的应用 总被引:4,自引:0,他引:4
介绍在珠钢CSP生产线上应用轧制润滑的情况,可以降低轧制力和辊耗,改善带钢表面和板形质量及辊面质量,增加薄规格比例,取得了较好的经济效益。 相似文献
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随着结构件减量化的推进,市场对高强度、薄规格的热轧板材需求量持续增加,尤其是在以热代冷方面应用较为广泛,同时对板形、表面质量和尺寸精度的要求更高。涟钢CSP线发挥生产薄规格板材优势,近年来在设备精度管理、控制系统优化和精整工艺参数优化等方面开展研究和技术提升,成功解决了高强度薄规格钢轧制力偏大,轧制板形差等技术难题。可稳定批量生产强度大于600MPa、厚度1.2mm的薄规格产品,且板形和表面质量良好,完全满足客户使用要求,广泛应用于车辆、家电、集装箱等领域。 相似文献
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介绍了薄规格热轧板生产过程中存在的问题,阐述了板带热轧润滑机理及作用。分别研究了单机架工作辊润滑技术、支撑辊润滑技术和工作辊与支撑辊复合润滑技术。比较了三种润滑方式的试验效果,得出支撑辊润滑技术应用效果最佳的结论。 相似文献
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《钢铁冶炼》2013,40(3):163-170
AbstractIn order to improve the flatness of hot rolled thin gauge steel strip, a new type of roll contour configuration was developed for a four-high temper rolling mill based on the finite element method analysis. The roll contour configuration consists of a variable contact back-up roll contour and a positive crown work roll contour. Both can be described as sixth order polynomial functions. The variable contact back-up roll not only reduces the roll stack deflection and contact stress concentration between work and back-up rolls, but also increases the control capability of the bending force of the work roll. Positive crown work roll contour is utilised to compensate roll wear and in turn the length of temper rolling schedule can be prolonged. After this roll contour configuration was applied on the temper rolling mill of Qiangang Company of Shougang Group, the flatness of hot rolled thin gauge strip was improved by 10% and the working efficiency was also increased as the length of temper rolling schedule was increased. 相似文献
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In a conventional production of deep‐drawable sheets of steel, a hot rolling in austenite and a cold rolling at room temperature together with a subsequent recrystallization annealing are applied with a cold strip as a final product. As a cost saving replacement for this, a thin‐gauge hot strip with a required deep‐drawability can be employed. A conventionally (in austenite) hot rolled strip is hardly applicable for this because of its unsatisfactory texture as well as because of the technical difficulties to produce hot strips with sufficiently small thicknesses. As a promising realization of cost saving thin‐gauge deep‐drawable hot strips of steel, a warm rolling can be applied with reduced finish rolling temperatures. In this practice the finish rolling is shifted down into the temperature region of ferrite. In the present work extensive laboratory tests on IF‐ and ELC‐steel were carried out by using the hot deformation simulator Wumsi. By the measurements of the texture development as well as by the computing of r‐values, the process parameters of ferritic rolling and a subsequent direct recrystallization in the coil of these steels could be optimized. 相似文献