| 摩擦焊机液压施力系统压力特性对比分析 |
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| 引用本文： | 王喜锋,杜随更,龚城,燕南飞.摩擦焊机液压施力系统压力特性对比分析[J].焊接学报,2006,27(12):37-41. |
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| 作者姓名： | 王喜锋 杜随更 龚城 燕南飞 |
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| 作者单位： | 1. 西北工业大学,现代设计与集成制造技术教育部重点实验室,西安,710072
2. 煤炭科学研究总院,西安分院,西安,710054 |
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| 摘 要： | 为分析采用电液比例计算机闭环系统进行摩擦焊接过程控制的必要性及可行性,对比分析了分别由开关阀和比例溢流阀组成的两种摩擦焊机轴向压力施力系统的静动态特性,以及长期生产过程中轴向压力波动规律,重点分析了油温对轴向压力参数的影响.结果表明,比例阀控制系统轴向压力的静、动态特性均优于开关阀系统;在长期焊接生产过程中,比例阀控制系统的轴向压力不受液压系统油温影响,比开关阀系统稳定,控制精度高,重现性好.
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| 关 键 词： | 摩擦焊接 比例阀 计算机控制 |
| 文章编号： | 0253-360X（2006）12-037-05 |
| 收稿时间： | 10 25 2005 12:00AM |
| 修稿时间： | 2005-10-25 |
Comparison of pressure characteristics between two friction welding machine hydraulic systems |
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| WANG Xi-feng,DU Sui-geng,GONG Cheng and YAN Nan-fei.Comparison of pressure characteristics between two friction welding machine hydraulic systems[J].Transactions of The China Welding Institution,2006,27(12):37-41. |
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| Authors: | WANG Xi-feng DU Sui-geng GONG Cheng and YAN Nan-fei |
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| Affiliation: | Key Laboratory of Ministry of Education for Contemporary Design and Integrated Manufacturing Technology, Northwestern Polytechnical University, Xi''an 7l0072, China,Key Laboratory of Ministry of Education for Contemporary Design and Integrated Manufacturing Technology, Northwestern Polytechnical University, Xi''an 7l0072, China,Xi''an Branch of China Coal Research Institute, Xi''an 710054, China and Xi''an Branch of China Coal Research Institute, Xi''an 710054, China |
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| Abstract: | In order to analyze the necessity and feasibility of close-loop process control by electro-hydranlic ration in the friction welding,the static and dynamic characteristics and the axial pressure fluctuations in long period welding production of two hydraulic systems of friction welding machine were compared.One system is constructed with stationary valves and the other used proportional relief valves.The effect of system oil temperature on axial pressure was analyzed in emphases.The results show that the static and dynamic characteristics of axial pressure with the proportional valve system are better than those with the switch valve system;the axial pressure of the proportional valve control system is independent on oil temperature.In long period welding production,the control precision of axial pressure with the proportional valve control system is higher,and the repeatability is better than that of switch valve control system. |
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| Keywords: | friction welding proportional valve computer control |
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