共搜索到1808条信息，每页显示10条信息，共181页。用时：0小时0分0秒277毫秒
钻机转盘用大型推力轴承淬火工艺分析及改进 关蜀军1 (1.天津探矿机械总厂,天津 300221) 摘要:工程钻机及水井钻机转盘用大型推力轴承的加工比较困难,存在淬火变形问题,分析了轴承圈的淬火工艺及淬火变形产生的主要原因,通过设计专用简易淬火压床,改进淬火工艺,减小了轴承圈的变形,提高了制造质量. 关键词:钻机转盘; 推力轴承; 回火整形; 淬火压床; drill rig rotary table; thrust bearing; temper dressing; quenching press; [全文内容正在添加中] ......
碳和硅对Mn系空冷贝氏体钢回火韧性的影响王勇围1,刘东雨1,桂洲1,白秉哲1,方鸿生1(1.北京市清华大学材料科学与工程系)摘 要:研究了碳的质量分数低于0.3%,不同硅含量的Mn系贝氏体钢的冲击韧性随回火温度的变化,结果表明,随着Si含量的提高,低温回火阶段出现韧性峰值的温度由220℃提高至340℃,韧性出现低谷的温度由340℃提高至520℃,这与Si抑制碳化物析出,稳定残余奥氏体有关.低Si钢一般适合高温回火后使用,高Si钢一般适合低温回火后使用;但碳的质量分数低于0.08%时,无论Si含量如何,低温或高温......
Simulation-based multi-objective optimization for roll shifting strategy in hot strip millLI Wei-gang(李维刚)1,2(1. College of Information Science and Engineering, Northeastern University, Shenyang 110819, China;2. Automation Division, Central Research Institute, Baosteel Group Corporation, Shanghai 20......
Comprehensive contour prediction model of work rolls in hot wide strip millXiaodong Wang, Quan Yang, Anrui He, and Renzhong Wang National Engineering Research Center for Advanced Rolling Technology, University of Science and Technology Beijing, Beijing 100083, China摘 要: Effect of temper rolling on the bake-hardening behavior of low carbon steelChun-fu Kuang1,2,Shen-gen Zhang1,Jun Li2,Jian Wang2,Pei Li31. School of Materials Science and Engineering,University...="ChDivSummary">In a typical process,low carbon steel was annealed at two different temperatures(660℃ and 750℃),and then was temper rolled to improve the mechanical properties.Pre-straining and baking treatments......Effect of temper rolling on the bake-hardening behavior of low carbon steel
来源： 《International Journal of Minerals Metallurgy and Materials2015年第1期》——Chun-fu Kuang Shen-gen Zhang Jun Li Jian Wang Pei Li
平整机上工作辊边部擦伤原因及防止措施 李江1,刘春富1,徐江1 (1.攀枝花钢铁集团公司冷轧厂罩平车间,) 摘要:针对攀钢冷轧机组平整机上工作辊边部擦伤现象,分析了其产生原因和危害,并提出了防止措施. 关键词:平整机; 工作辊; 擦伤; 预防; [全文内容正在添加中] ......
平整液综合评价实验研究 张晓明1,王国栋1,刘相华1,邸洪双1 (1.东北大学轧制技术及连轧自动化国家重点实验室,辽宁,沈阳110006) 摘要:采用平整轧制实验和理化性能指标的测试方法,对不同平整液的平整效果及性能指标进行了对比研究.依据实验研究结果,得出了平整液的主要评价指标和综合评价方法. 关键词:冷轧; 平整; 平整液; [全文内容正在添加中] ......
Effect of Temper Temperature on Microstructures and Wear Resistance of Surfacing Deposits of Ferro-Base with Cr-W-MO Alloy刘建华,徐亮,杨庆祥,张瑞军摘 要:In the paper, the effect of temper temperature on microstructures and wear resistance of surfacing deposits of Ferro-base with Cr-W-MO alloy were investigated. The results show that the secondary hardening can......
Correlation of surface features with corrosion behaviors of interstitial free steel processed by temper rollingHeng Chen1,Zebang He1,Lin Lu1,21. Institute for Advanced Materials and Technology, University of Science and Technology Beijing2. State Key Laboratory of Metal Material for Marine Equipment and Application摘 要:Temper rolling,as a final......
热轧宽带钢精轧机组机架振动分析及抑制措施李振兴1,2,刘相华1(1.辽宁省沈阳市东北大学轧制技术及连轧自动化国家重点实验室2.北京市北京首钢自动化信息公司)摘 要:以某热连轧生产线主传动F1~F4机架增容改造为背景,对交交变频主传动的控制系统进行了设计,装置制造,调试及新功能开发.从传动系统的稳态分析及轧制过渡过程入手,推导了交交变频传动系统带负荷观测器和不带负荷观测器的传递函数,利用MATLAB进行稳定性分析,找到了轧机振动的原因,提出了抑制措施.投入负荷观测器后,对抑制轧机振动起到了良好的实际效果.
