共查询到19条相似文献,搜索用时 109 毫秒
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在压力膨胀仪和Gleeble—1500试验机上对25SiMn钢和AY3F钢进行了不同温度,不同变形速率和不同变形程度时变形抗力的模拟,并与实验室相应条件下测定的轧制压力进行了比较。同时测定了加热和轧制所需的能耗。试验了热轧工艺润滑对降低变形抗力的效果。结果表明,降低加热温度可大大节省加热和轧制所需的总能耗;采用热轧工艺润滑可以补偿由于低温轧制所增加的部分轧制能耗。 相似文献
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本文对太钢热连轧厂热轧工艺润滑项目进行了全面阐述,对热轧工艺润滑的机理、特点以及在开发过程中所遇到的问题进行了说明,对热轧工艺润滑在普通钢、硅钢和不锈钢上的试验,从轧制力下降、公里数延长和轧辊磨损情况等方面进行了较详尽地描述。太钢热连轧厂成为国内首家在不锈钢和硅钢上应用该项技术的生产厂家。 相似文献
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针对在铝板带热轧中有重要作用的乳化液,在介绍其成分、性能和润滑效果的基础上,对其管理、维护进行深入分析,旨在为铝板带热轧过程中选择适宜的乳化液,使乳化液发挥出应有作用效果提供可靠参考依据. 相似文献
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本文对太钢1549mm热连轧厂热轧工艺润滑开发过程中所遇到的问题进行了详尽的分析,并阐明了具体采取的措施。热轧工艺润滑技术的成功开发,使该厂成为国内首家在不锈钢、硅钢上应用该项技术的生产厂家。 相似文献
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深入分析热轧工艺润滑的机理与关键技术,介绍热轧工艺润滑在宽带钢上应用的良好效果,为在即将建成的莱钢1500mm热轧带钢上应用热轧工艺润滑做好技术准备。 相似文献
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随着全球对新能源技术和节能技术的日益重视,各种节能减排技术得到了充分应用。本文论述了钢铁业重要节能技术热轧轧制润滑的基本原理、设备布置、系统构成等,以及该技术在国内热轧带钢生产线的应用情况,包括使用该项技术的生产线,各生产线使用的实际效果等,对国内新建或改造热连轧生产线具有一定的参考作用。 相似文献
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热轧时采用工艺润滑,不仅能改善钢板的表面质量,减少辊耗,而且对后续的冷轧工序也有明显的改善,分析了热轧工艺润滑对轧辊磨损及对热轧钢板表面质量的影响,并计算了热轧工艺润滑的经济效益。 相似文献
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《钢铁研究学报(英文版)》2016,(12):1268-1276
A mathematical model of friction coefficient was proposed for the roll force calculation of hot-rolled strips. The online numerical solving method of the roll force calculation formula based on the proposed friction model was developed and illustrated by the practical calculation case.Then,the friction coefficient during hot strip rolling was estimated from the measured roll force by force model inversion.And then,the expression of friction model was pro-posed by analyzing the calculation process of stress state coefficient,and the model parameters were determined by the shared parameter multi-model nonlinear optimization method.Finally,the industrial experiments demonstrated the feasibility and effectiveness of the related models.The accuracy of the new roll force model based on the built friction model was much higher than that of the traditional Sims model,and it could be applied in the online hot roll-ing process control. 相似文献
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An optimization solution to roll shifting strategy for alternately rolling campaign is presented. All the strips in a rolling campaign are divided into narrow strips and wide ones, and shifting position of narrow strips is obtained by the recursive method, and then shifting position of wide strips is optimized by NSGA-II which is a multi-objective genetic algorithm. For wide strips, a multi-objective optimization model of roll shifting strategy is proposed, which takes 3 wear contour factors including edge smoothness, body smoothness and edge drop as optimization objectives. The Pareto optimal front of roll shifting strategy can be gained quickly by NSGA-II, which suggests a series of alternative solutions to roll shifting strategy. Analysis shows that the conflict exists among the 3 objectives. The final optimal solution is selected from the Pareto optimal solutions by the weighted-sum decision-making method. Industrial production proves the validity of the solution, and it can improve strip profile of alternately rolling, reduce strip edge wave, and extend the rolling miles of rolling campaigns. 相似文献
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鞍钢热带连轧轧辊的现状和前景 总被引:2,自引:0,他引:2
随着热带连轧技术的发展,热轧条件发生变化,轧辊的使用条件更加苛刻,对轧辊的强韧性,耐磨性,耐表面粗糙性和耐热裂性提出了更高的要求,本文在解国内外发展动态的基础上,结合目前鞍钢的的实际情况,对鞍钢热带连轧辊现状问题的解决和发展前景提出一此想法和建议。 相似文献