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Research and Application of Non-symmetrical Roll Bending Control of Cold Rolling Mill 被引量:4
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作者 WANG Pengfei ZHANG Dianhua +2 位作者 LI Xu LIU Jiawei WANG Junsheng 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2012年第1期122-127,共6页
The existing research of the flatness control for strip cold rolling mainly focuses on the calculation of the optimum adjustment of individual flatness actuator in accordance with the flatness deviation, which can be ... The existing research of the flatness control for strip cold rolling mainly focuses on the calculation of the optimum adjustment of individual flatness actuator in accordance with the flatness deviation, which can be used for general flatness control. However, it does not work for some special rolling processes, such as the elimination of ultra single side edge-waves and the prevention of strip break due to tilting roll control overshooting. For the purpose of solving these problems, the influences of non-symmetrical work roll bending and intermediate roll bending on flatness control were analyzed by studying efficiencies of them. Moreover, impacts of two kinds of non-symmetrical roll bending control on the pressure distribution between rolls were studied theoretically. A non-symmetrical work roll bending model was developed by theoretical analysis in accordance with practical conditions. The model was applied to the revamp of a 1250 6-H reversible universal crown mill (UCM) cold mill. Theoretical study and practical applications show that the coordination utilization of the non-symmetrical work roll bending control and tilting roll control was effective in flatness control when there appeared bad strip single side edge waves, especially when the incoming strip was with a wedge shape. In addition, the risk of strip break due to tilting control overshooting could be reduced. Furthermore, the non-symmetrical roll bending control can reduce the extent of uneven distribution of pressure between rolls caused by intermediate roll shifting in flatness control and slow down roll wear. The non-symmetrical roll bending control technology has important theoretical and practical significance to better flatness control. 展开更多
关键词 non-symmetrical roll bending flatness control cold rolling actuator efficiency roll wear strip break
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Fuzzy Control System of Hydraulic Roll Bending Based on Genetic Neural Network 被引量:2
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作者 JIAChun-yu LIUHong-min ZHOUHui-feng 《Journal of Iron and Steel Research International》 SCIE CAS CSCD 2005年第3期22-27,共6页
For nonlinear hydraulic roll bending control, a new fuzzy intelligent control method was proposed based on the genetic neural network. The method taking account of dynamic and static characteristics of control system ... For nonlinear hydraulic roll bending control, a new fuzzy intelligent control method was proposed based on the genetic neural network. The method taking account of dynamic and static characteristics of control system has settled the problems of recognizing and controlling the unknown, uncertain and nonlinear system successfully, and has been applied to hydraulic roll bending control. The simulation results indicate that the system has good performance and strong robustness, and is better than traditional PID and neural-fuzzy control. The method is an effective tool to control roll bending force with increased dynamic response speed of control system and enhanced tracking accuracy. 展开更多
关键词 genetic algorithm neural network fuzzy control hydraulic roll bending SHAPE
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Bending analysis and control of rolled plate during snake hot rolling 被引量:6
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作者 张涛 吴运新 +2 位作者 龚海 郑细昭 蒋绍松 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第7期2463-2469,共7页
In order to study the bending behavior of aluminum alloy 7050 thick plate during snake hot rolling, several coupled thermo-mechanical finite element(FE) models were established. Effects of different initial thicknesse... In order to study the bending behavior of aluminum alloy 7050 thick plate during snake hot rolling, several coupled thermo-mechanical finite element(FE) models were established. Effects of different initial thicknesses, pass reductions, speed ratios and offset distances on the bending value of the plate were analyzed. ‘Quasi smooth plate' and optimum offset distance were defined and quasi smooth plate could be acquired by adjusting offset distance, and then bending control equation was fitted. The results show that bending value of the plate as well as the extent of the increase grows with the increase of pass reduction and decrease of initial thickness; the bending value firstly increases and then keeps steady with the ascending speed ratio; the bending value can be reduced by enlarging the offset distance. The optimum offset distance varies for different rolling parameters and it is augmented with the increase of pass reduction and speed ratio and the decrease of initial thickness. A proper offset distance for different rolling parameters can be calculated by the bending control equation and this equation can be a guidance to acquire a quasi smooth plate. The FEM results agree well with experimental results. 展开更多
关键词 snake hot rolling bending analysis quasi smooth plate optimum offset distance bending control equation
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Analysis of bending on the front end of sheet during hot rolling 被引量:2
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作者 Jiquan Sun Haibin Zhang Quancheng Yu 《Journal of University of Science and Technology Beijing》 CSCD 2006年第1期54-59,共6页
The analysis of bending in finishing rolling was performed. An asymmetrical rolling force model was established, and the upper and lower neutral points were determined. Thc bending which resulted from the asymmetrical... The analysis of bending in finishing rolling was performed. An asymmetrical rolling force model was established, and the upper and lower neutral points were determined. Thc bending which resulted from the asymmetrical rolling force at the roll gap was studied and related flexibility equations were proposed according to elastic mechanics. Moreover, material mechanics was used to analyze the effects of temperature difference and self-weight on the bending out of the roll gap, and the flexibility equations were constructed. The main factors on bending were summed up, and the bending rule in the rolling could be obtained. In addition practical calculation was made with the production data of ribbon steel from Laiwu Iron & Steel Group Co. Ltd. 展开更多
关键词 steel sheet hot rolling asymmetrical rolling force model bendING
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Study of the Characteristics of Large-Diameter Iron Bars Obtained by Rolling at the ODHAV Foundry in the Republic of Guinea
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作者 Alpha Issa Diallo Jean Ahmadou Kourouma +3 位作者 Adama Moussa Sakho Younoussa Moussa Baldé Mamadou Madaniou Sow Alexandre Lucien Richard 《Journal of Materials Science and Chemical Engineering》 2024年第6期43-54,共12页
This work consists of evaluating the quality of the mechanical parameters of large-diameter steels, i.e. 20, 25, 28 and 32, through a process of recycling scrap metal that fills garages, rubbish dumps, gutters and oth... This work consists of evaluating the quality of the mechanical parameters of large-diameter steels, i.e. 20, 25, 28 and 32, through a process of recycling scrap metal that fills garages, rubbish dumps, gutters and other abandoned sites, as well as imported concrete reinforcing steel sold in the Republic of Guinea. To carry out this important work, a number of mechanical tensile and bending tests and a microscopic analysis combining two devices, an electron microscope and a photographic camera, were carried out. The samples were taken from sampling areas in the major communes of Conakry, namely: Casse Sonfonia, Matoto and Kagbélen. The tensile strength values of the large dimensions 20, 25, 28 and 32 are given in the tables. 展开更多
关键词 Recycled Scrap Large Diameter rollING Tensile Testing bendING
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Improvement on strip flatness of cold temper mills by modifying roll contour shape 被引量:3
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作者 Xiaoyan Li Jie Zhang +2 位作者 Xianlin Chen Jianguo Cao Haixia Li Mechanical Engineering School, University of Science and Technology Beijing, Beijing 100083, China 《Journal of University of Science and Technology Beijing》 CSCD 2004年第3期251-255,共5页
A study on roll gap profile (strip profile) control was accomplished in a1700 mm single-stand temper mill. Some critical problems such as the deviation of work roll contourcaused by grinding and wear, the effectivenes... A study on roll gap profile (strip profile) control was accomplished in a1700 mm single-stand temper mill. Some critical problems such as the deviation of work roll contourcaused by grinding and wear, the effectiveness of work roll bending were discussed. Using a finiteelement model, the effects of roll contours (ground and wear) on strip profile were investigated.The roll bending effect on strip thickness was also analyzed. It is pointed out that there are somespecial features of flatness control in the temper mill: during temper rolling, roll deformation isslight due to small rolling load, and the loaded roll gap profile mainly depends on work rollcontour, while the backup roll has a little effect on gap crown; the effect of bending force ongauge can not be ignored due to the coupling between flatness control and gauge control. A new rollcontour arrangement adaptable to the mill was presented and has been put into practical production.The application of the new set of rolls showed some good results: larger crown control range of workroll bender, higher rolling stability, better strip profile and flatness quality. 展开更多
关键词 cold rolling temper mill strip shape control roll contour arrangement bendING
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Study on the Interface Bonding and Bending Fatigue Properties of Aluminum Alloy Foam Sandwich 被引量:1
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作者 Zhang Min Chen Changjun Chang Qingming 《稀有金属材料与工程》 SCIE EI CAS CSCD 北大核心 2009年第A03期119-122,共4页
Foam materials have many attractive properties because of their low-weight and cell structure. By sandwiches with an aluminum-foam core, it is possible to obtain higher structural stiffness and rigidity, maintain stab... Foam materials have many attractive properties because of their low-weight and cell structure. By sandwiches with an aluminum-foam core, it is possible to obtain higher structural stiffness and rigidity, maintain stability against buckling and additionally make use of the high energy dissipation capability of the bare foams. The most obvious and straightforward one is adhesive bonding of pre-fabricated aluminum foams and metal face sheets. A new manufacture processing is proposed for preparation of aluminum alloy foam sandwich, ie., Al-plate/mixed element powder/ Al-plate are sandwich rolled together by a large reduction in pass, which is then foamed in heating furnace to manufacture end-use product. Aluminum alloy foam sandwich is obtained in this experiment. The experimental results showed that the process of rolling interface belongs to mechanical bonding, whose mechanism is film theory. While interface bonding belong to metallurgy bonding in the process of foaming, Al atom interdiffused in the interface, and no new phase was generated in the foaming process of aluminum face sheet/powders precursor. Bending fatigue test results showed that the bonding force of the foamed sandwich interface is very high, in fatigue test fracture occurred in the whole foam aluminum sandwich panels and Al/foam core interface was not laminated. 展开更多
关键词 泡沫材料 复合材料 泡沫塑料 物理性能
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Microstructural evolution of lamellar cementite in eutectoid steels by cold rolling
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作者 王莉 梅本实 《材料与冶金学报》 CAS 2005年第2期155-158,共4页
The pearlitic transformation and the deformation behavior of lamellar cementite after cold rolling in eutectoid steels Fe-0.76%C-0.137%Mn(mass fraction) were studied by means of Formastor-F (Full Automatic Transformat... The pearlitic transformation and the deformation behavior of lamellar cementite after cold rolling in eutectoid steels Fe-0.76%C-0.137%Mn(mass fraction) were studied by means of Formastor-F (Full Automatic Transformation Testing Instrument) and field emission scanning electronic microscopy (FESEM) observation. Fine and coarse pearlite were obtained in the eutectoid steels austenitized at 900℃ for 15min, then hold at 620℃ for 90 s and 690℃ for 7 h, respectively. The deformation behavior of cold rolled lamellar cementite could be classified as: cleavage fracture, inhomogeneous slip, fragmentation, thinning or necking, and homogeneous bending. The cementite lamellae with the thickness of more than 100 nm could be deformed plastically. 展开更多
关键词 共析钢 片层状渗碳体 冷轧 形态变化 显微结构
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冷连轧弯辊力精度改进PSO-SVM预测及补偿分析
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作者 白跃辉 《锻压装备与制造技术》 2024年第2期132-135,共4页
为了进一步控制冷连轧弯辊力精度,构建改进PSO-SVM预测模型。利用包含压缩因子的粒子群算法完成支持向量机参数的更高效寻优处理,对回归轧制参数实施反归一化获得弯辊力模型。根据现场实际轧制结果完成预测模型的验证过程。研究结果表明... 为了进一步控制冷连轧弯辊力精度,构建改进PSO-SVM预测模型。利用包含压缩因子的粒子群算法完成支持向量机参数的更高效寻优处理,对回归轧制参数实施反归一化获得弯辊力模型。根据现场实际轧制结果完成预测模型的验证过程。研究结果表明:采用改进PSO-SVM模型获得的预测性能指标在上述优化方法中达到了最低,改进PSO-SVM模型具备最优预测效果。设置可靠补偿后大幅降低了AFC系统工作量,促进了带钢板形效率的显著提升。弯辊力补偿值形成了与弯辊力几乎相同的变化规律,具备优异预测性能。 展开更多
关键词 冷轧 板形控制 弯辊力 粒子群算法 支持向量机
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2205/Q420/2205蛇形轧制复合变形规律研究
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作者 杨超 赵海峰 +2 位作者 乔福振 王利军 江连运 《太原科技大学学报》 2024年第3期229-235,共7页
为研究三层不锈钢复合板在不同工艺参数下轧制复合的变形规律,采用ANSYS有限元软件模拟了2205/Q420/2205三层复合板轧制复合过程,研究了同步轧制、同速异径轧制和同速异径蛇形轧制三种不同工艺下,复合板结合界面等效塑性应变和弯曲曲率... 为研究三层不锈钢复合板在不同工艺参数下轧制复合的变形规律,采用ANSYS有限元软件模拟了2205/Q420/2205三层复合板轧制复合过程,研究了同步轧制、同速异径轧制和同速异径蛇形轧制三种不同工艺下,复合板结合界面等效塑性应变和弯曲曲率的变化规律,分析了不同压下率、初始厚度比和错位量对轧后板形的影响规律,并进行了轧制复合实验。研究结果表明,蛇形轧制通过调整错位量,能有效提高轧后板材界面结合强度并降低轧后弯曲。轧后弯曲曲率随着压下率的增大呈现出先减小后增大的趋势。等效塑性应变随着错位量的增加先增大后减小,轧后弯曲曲率随着错位量的增加逐渐降低,这表明通过适当调整错位量可以使轧后板材同时达到优良的结合强度和平直度。 展开更多
关键词 蛇形轧制 有限元 等效塑性应变 弯曲曲率
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基于改进的MOGWO高强度钢辊弯成形工艺的多目标优化
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作者 赵彬荐 李兆军 +2 位作者 蒋春玲 刘忆恒 黄伟 《塑性工程学报》 CAS CSCD 北大核心 2024年第7期89-99,共11页
为了探究成形参数对高强度钢辊弯件成形质量的影响,并对工艺参数进行优化,提出了一种辊弯成形工艺优化方法。首先,应用LS-DYNA有限元软件模拟LG700高强度钢U型辊弯件的成形过程。然后,通过Box-Behnken响应面设计对高强度钢U型辊弯件进... 为了探究成形参数对高强度钢辊弯件成形质量的影响,并对工艺参数进行优化,提出了一种辊弯成形工艺优化方法。首先,应用LS-DYNA有限元软件模拟LG700高强度钢U型辊弯件的成形过程。然后,通过Box-Behnken响应面设计对高强度钢U型辊弯件进行仿真试验,分析辊弯道次、过弯角、辊站间距和辊缝间距等成形工艺参数以及厚度、法兰高度、圆角半径等几何参数对辊弯件偏差角和纵弓高度的影响,并通过拟合得到偏差角和纵弓高度二者的二阶响应模型。最后,采用改进的多目标灰狼优化(MOGWO)算法对特定尺寸辊弯件进行工艺优化,并通过实例进行验证。结果表明,将优化后的工艺参数用于高强度钢辊弯成形过程中导致其偏差角由0.78°降至0.24°,纵弓高度由1.58 mm降至1.20 mm,成形质量得到提高,满足相关产品的装配精度要求。 展开更多
关键词 辊弯成形 LS-DYNA 高强度钢 响应面法 多目标灰狼优化算法
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龙形轧制轧板的弯曲控制及其对性能影响的研究综述 被引量:1
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作者 武磊 何兵 覃铭 《热加工工艺》 北大核心 2024年第9期8-12,共5页
龙形轧制是一种非对称轧制工艺,通过在异步轧制基础上引入轧辊错位这一新的非对称元素,在增加轧板心部变形量的同时,克服异步轧制导致的轧板弯曲。本文围绕龙形轧制轧板的弯曲控制和其对性能影响的研究进展进行了综述,介绍了新的研究成... 龙形轧制是一种非对称轧制工艺,通过在异步轧制基础上引入轧辊错位这一新的非对称元素,在增加轧板心部变形量的同时,克服异步轧制导致的轧板弯曲。本文围绕龙形轧制轧板的弯曲控制和其对性能影响的研究进展进行了综述,介绍了新的研究成果并分析了不同研究工作的特点,最后对龙形轧制工艺研究当前存在的主要问题进行了综述,并提出了未来的研究方向。 展开更多
关键词 龙形轧制 弯曲 异速比 压下率
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拉伸孪晶对AZ31镁合金薄板可轧性和组织性能的影响
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作者 刘群峰 聂慧慧 +3 位作者 任健斌 杨汉章 王文嘉 梁伟 《热加工工艺》 北大核心 2024年第15期131-134,共4页
通过弯曲限宽矫直工艺在AZ31镁合金薄板中预置了拉伸孪晶,随后对原始板材和预置孪晶板材进行轧制,对比分析了初始组织对板材在轧制过程中的塑性变形协调能力的影响,探索了不同轧制压下量对两种板材的组织和力学性能的影响。结果表明:弯... 通过弯曲限宽矫直工艺在AZ31镁合金薄板中预置了拉伸孪晶,随后对原始板材和预置孪晶板材进行轧制,对比分析了初始组织对板材在轧制过程中的塑性变形协调能力的影响,探索了不同轧制压下量对两种板材的组织和力学性能的影响。结果表明:弯曲限宽矫直后板材的强度和塑性都得到了提升,轧制后的原始板材剪切变形带较少。在后续的拉伸试验中,在相同压下量下塑性变形能力也明显提升。 展开更多
关键词 AZ31镁合金 弯曲限宽矫直(BLWS) 轧制
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考虑回弹的水平上调式三辊卷板机卷圆精度研究
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作者 黎仕 钱应平 +3 位作者 张东桥 匡佳维 方文康 姚主林 《塑性工程学报》 CAS CSCD 北大核心 2024年第2期66-75,共10页
为提高卷圆成形精度,建立了不考虑回弹与考虑回弹时水平位移量与卷圆半径之间的理论模型。采用ABAQUS软件建立了卷圆成形有限元模型,并通过实验验证了理论模型及有限元模型的可靠性。基于可靠的有限元模型,研究了材料、摩擦力和板厚对... 为提高卷圆成形精度,建立了不考虑回弹与考虑回弹时水平位移量与卷圆半径之间的理论模型。采用ABAQUS软件建立了卷圆成形有限元模型,并通过实验验证了理论模型及有限元模型的可靠性。基于可靠的有限元模型,研究了材料、摩擦力和板厚对卷圆成形精度的影响规律。研究结果表明,不考虑回弹时实验和仿真的成形半径与目标半径之间的误差分别为31.3%和20.7%。考虑回弹后的误差分别降低至2.2%和1.2%;在相同水平位移量下,材料的屈服强度越高,成形半径越大;摩擦力对成形半径的影响较小;板料越厚,成形半径越小。针对不同材料与不同厚度的板料卷圆成形,考虑回弹时的理论模型能够获得更精确的水平位移量,从而提升卷圆精度。 展开更多
关键词 三辊卷板机 板料回弹 数学模型 成形精度
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基于机理模型的热连轧板形快速控制技术 被引量:1
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作者 陈彤 邢天庆 +1 位作者 郭隆 李子正 《河北冶金》 2024年第2期64-67,82,共5页
热连轧机组板形控制是一项关键的任务,它旨在解决板形变化对产品质量和生产效率的影响。针对热连轧机组板形控制过程中的板形约束变量问题,采用双因素线性插值的方法,在分析弯辊力和窜辊量对板形影响的基础上建立双因素传递系数模型和... 热连轧机组板形控制是一项关键的任务,它旨在解决板形变化对产品质量和生产效率的影响。针对热连轧机组板形控制过程中的板形约束变量问题,采用双因素线性插值的方法,在分析弯辊力和窜辊量对板形影响的基础上建立双因素传递系数模型和板形控制空间。首先对板形空间的插值方法进行设计,然后应用到弯辊力和窜辊量对轧制压力的传递系数模型的建立中,求出相应弯辊力与窜辊量对轧制压力的传递系数,这些传递系数可以被视为板形控制的关键参数,利用求出的传递系数基于板形调节建立轧机板形控制空间。通过对板形控制空间的求解,可在板形控制范围内实现板形的快速搜寻和弯辊力、窜动量对板形的快速控制,为热连轧机组的操作提供有效指导。该方法在解决板形控制难题上具有显著的效果,能够提高产品质量和生产效率。未来的研究可以进一步优化传递系数模型和板形控制算法,实现更加精确和自动化的板形控制。 展开更多
关键词 热连轧机 板形控制 线性插值 传递系数 弯辊力 窜辊量
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三次渗碳体和游离渗碳体对低碳钢弯曲性能的影响
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作者 赵琼 刘西峰 +5 位作者 袁月 彭兴东 赵磊磊 辛春燕 王亮 王正康 《热处理》 CAS 2024年第4期20-24,共5页
生产和使用中发生了两起低碳钢产品弯曲开裂:SPHC钢异形门框弯曲开裂和Q195钢热镀锌C形钢弯曲开裂。对开裂的异形门框和C形钢进行了宏观检验、金相检验和断口分析,并对热镀锌在线退火工艺进行了模拟试验。结果表明:低碳钢中的三次渗碳... 生产和使用中发生了两起低碳钢产品弯曲开裂:SPHC钢异形门框弯曲开裂和Q195钢热镀锌C形钢弯曲开裂。对开裂的异形门框和C形钢进行了宏观检验、金相检验和断口分析,并对热镀锌在线退火工艺进行了模拟试验。结果表明:低碳钢中的三次渗碳体和游离渗碳体与基体之间易形成孔隙和微裂纹,降低钢的弯曲性能,在弯曲力的作用下钢发生开裂;热镀锌SPHC和Q195钢带中的渗碳体来源于热轧钢带的组织遗传;为控制三次渗碳体的数量,热轧低碳钢带的终轧温度应控制在860~880℃,卷取温度控制在580~610℃,卷取后钢带应避免缓冷。 展开更多
关键词 三次渗碳体 游离渗碳体 弯曲性能 热轧态 热镀锌 在线连续退火
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钛焊管连续辊弯成型工艺研究
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作者 郑帮智 冯兆龙 +3 位作者 孙思博 肖勇 杨杰 马嘉 《钢管》 CAS 2024年第3期72-78,共7页
研究聚焦于Ф168 mm钛焊管的连续辊弯成型工艺,通过数值仿真和实验验证,深入分析了成型速度和成型间距对成型抗力、应力应变的影响。结果表明,在成型速度≤5 m/min、成型间距缩至700 mm时,钛焊管辊弯成型抗力显著降低,成型应力、应变维... 研究聚焦于Ф168 mm钛焊管的连续辊弯成型工艺,通过数值仿真和实验验证,深入分析了成型速度和成型间距对成型抗力、应力应变的影响。结果表明,在成型速度≤5 m/min、成型间距缩至700 mm时,钛焊管辊弯成型抗力显著降低,成型应力、应变维持在低水平,实现了成型稳定性的显著改善。此外,针对成型过程中的变形情况进行了详细分析,指出边缘拉压作用易导致失稳,产生边浪、鼓包等缺陷。最后,通过数值模拟和试验对比,验证了数值模型的可行性,为钛焊管实际生产提供了指导。 展开更多
关键词 钛焊管 辊弯成型 数值仿真 工艺
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论液压弯窜辊系统的改造及收效
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作者 黄强 安智峰 +2 位作者 史玉红 夏军 喻鹏 《宝钢技术》 CAS 2024年第3期72-77,共6页
某热轧生产线精轧工作辊弯窜辊系统在日常生产期间存在诸多设备隐患,严重影响了正常的生产作业和产品质量,同时导致了设备损耗和油脂消耗的增大,对生产的正常运行造成极大的影响。为了彻底解决这一问题,满足生产的需要,对精轧工作辊弯... 某热轧生产线精轧工作辊弯窜辊系统在日常生产期间存在诸多设备隐患,严重影响了正常的生产作业和产品质量,同时导致了设备损耗和油脂消耗的增大,对生产的正常运行造成极大的影响。为了彻底解决这一问题,满足生产的需要,对精轧工作辊弯窜辊系统进行了全面综合的技术改造,最终取得了理想的效果。 展开更多
关键词 精轧 弯窜辊系统 电液系统
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管材多辊弯曲成形及其回弹有限元分析
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作者 李朝宇 钱余海 《机械制造与自动化》 2024年第4期182-186,共5页
为探究弯管成形过程中回弹的影响规律,提高加工精度,以6061-T6铝合金管材为例,利用ABAQUS有限元软件进行仿真实验,探究弹性模量、泊松比、管壁厚度等材料参数和送料速度、摩擦因数等工艺参数对管材弯曲回弹的影响。结果表明:在3项材料... 为探究弯管成形过程中回弹的影响规律,提高加工精度,以6061-T6铝合金管材为例,利用ABAQUS有限元软件进行仿真实验,探究弹性模量、泊松比、管壁厚度等材料参数和送料速度、摩擦因数等工艺参数对管材弯曲回弹的影响。结果表明:在3项材料参数中泊松比对管材弯曲回弹角度的影响最小,壁管厚度的影响程度最大,工艺参数中摩擦因数的增加会使回弹角度先增加后减小,送料速度的影响程度小于摩擦因数。 展开更多
关键词 滚弯成形 有限元 弯曲回弹 材料参数 工艺参数
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六辊冷轧机弯辊装置制造质量控制关键点分析
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作者 操郁贤 《现代制造技术与装备》 2024年第6期119-121,共3页
文章概述弯辊装置的结构组成和作用,分析影响其制造质量的主要因素,并从设计阶段、加工制造阶段和装配调试阶段3个方面,提出结构优化设计、材料选择、加工工艺控制、装配精度控制和综合性能测试等关键控制点和具体措施,以期为提高弯辊... 文章概述弯辊装置的结构组成和作用,分析影响其制造质量的主要因素,并从设计阶段、加工制造阶段和装配调试阶段3个方面,提出结构优化设计、材料选择、加工工艺控制、装配精度控制和综合性能测试等关键控制点和具体措施,以期为提高弯辊装置制造水平、保障冷轧产品质量提供参考。只有在弯辊装置制造的各个环节实施严格的质量控制和管理,并采用先进的制造技术和检测手段,才能确保弯辊装置的性能和精度满足冷轧生产的高标准要求。 展开更多
关键词 六辊冷轧机 弯辊装置 制造质量 质量控制
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