共查询到19条相似文献,搜索用时 31 毫秒
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随着西门子等老牌系统厂商推出经济型系统来抢占中低端市场,国产数控系统的日子越来越不好过。本期专题,我们将以今年CCMT2012数控系统展品为依托,共同探讨中国数控系统企业该如何变大变强。 相似文献
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基于射频识别技术的车辆自动识别系统的实现 总被引:6,自引:0,他引:6
本文介绍了一种基于RFID技术的车辆自动识别系统的设计。该系统可在车辆行驶状态下识别车辆身份并采集相关信息,可应用于电子不停车收费、停车场管理及门禁管理等。 相似文献
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《橡塑机械时代》2009,21(4):18-22
Mixing technology of tire tread filled with short fiber;Explicit finite element analysis for tire-obstacle collision process;Injection design for button based on CAD/CAE/CAM; Effect of vibration force field on conveying pressure of HDPE solid material; Optimization of injection mould and rapid sefling of processing parameters of injection moulding based on numerical simulation 相似文献
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《橡塑机械时代》2009,21(11):18-22
Study on the characteristics of rare earth complex as rubber vulcanization accelerator Abstract: The N-cyclohexyl-2-benzothiazole sulfenamide neodymium complex was synthesized with accelerator CZ as ligand, and its application in NR/SBR blend was investigated. It was confirmed by element analysis and infra-red spectroscopy analysis that, the composition of the rare earth complex was Nd(CZ)Cl3.Nd(OH)Cl2.H2O.The rare earth complex had a delay characteristic of sulfonamide accelerators and was suitable for vulcanization of thick-walled rubber goods; after heat aging, the Shore A hardness, the modulus at 300% elongation and tear strength of vulcanizate were increased, the tensile strength, elongation at break and tensile set at break of vulcanizate were decreased; the rolling resistance and the heat buildup of tread compound with the rare earth complex could be decreased. 相似文献
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