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2009年1-2月化工原材料运行情况 [2009-03-26] |
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| 近日,工业和信息化部发布2009年1-2月原材料工业运行情况。统计显示,原材料工业增加值同比增长3.1%。由于市场需求不足,产能过剩的问题更加突出,主要原材料价格回升乏力。
化工:下滑态势趋缓,产销形势有所好转,但总体形势仍不乐观。1-2月,化工增加值同比增长0....
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采用电缆作为配电干线需注意的事项 [2009-03-26] |
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| 1 敷设电缆时要注意保持间距
某化工厂电工值班人员巡视低压配电室时,发现 电缆 沟内有一闪一闪的亮光,近前检查又没有发现异常现象,但当其离开现场后,电缆沟内爆炸起火,沟内一百多根电缆全部烧毁;事故原因:电缆沟内有碱液渗入,但未引起重视,虽然交联聚乙烯...
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汽车车身制造中更具竞争力的液压成形技术 [2009-03-26] |
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| 在汽车工业及航空、航天等领域,减轻结构质量以节约运行中的能量是人们长期追求的目标,也是先进制造技术发展的趋势之一。液压成形( hydroforming )就是为实现结构轻量化的一种先进制造技术。
与传统的冲压工艺相比,液压成形工艺在减轻重量、减少零件数量和模具数...
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TD覆层处理技术 [2009-03-26] |
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| 技术原理及工艺
TD 覆层处理是热扩散法碳化物覆层处理( Thermal Diffision Carbide Coating Process )的简称,英文简称“ TD coating ”。因该技术由日本丰田中央研究所于 20 世纪 70 年代首先研制成功并申请专利,又被称为“ Toyota Diffusion Process ” , 简称...
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Cognex updates VisionPro software [2009-03-26] |
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| March 26, 2009 -- Cognex expanded the toolset of its hardware-independent VisionPro software. The VisionPro 5.2 release provides an easier to use version of the PatMax technology, enhanced color tools and an enhanced architecture to harness the power...
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OPC opens Certification Test Lab in Scottsdale, AZ [2009-03-26] |
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| March 26, 2009 -- The OPC Foundation announced that it has officially opened a North American Certification Test Lab to validate and certify OPC products. This new lab, in Scottsdale, AZ, joins the first OPC Test Lab opened in Erlangen, Germany in 20...
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ISA100 Factory Automation Working Group calls for papers [2009-03-26] |
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| March 26, 2009 -- The ISA100 Factory Automation Working Group (WG16) is soliciting input by means of a Request for Proposal for companies or individuals to make a presentation or submit a proposal paper.
ISA100 WG16 is chartered to investigate appl...
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Emerson adds FieldQ control modules for valve actuators [2009-03-26] |
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| March 26, 2009 -- Emerson Process Management announces a FieldQ control module for use in conventionally wired applications. The new module significantly expands the application scope and scalability of the FieldQ range of fully integrated pneumatic ...
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CAN总线及其在艾默生CT PLC上的应用 [2009-03-26] |
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| 引言
数字电子信息技术的飞速发展对全世界的制造业日益起着巨大的推动作用,使得制造业的各种设备的设计越来越电子化,数字化,网络化,ECCT产品是艾默生CT推出的一款专门应用于纺织行业的具有CAN总线协议的专用PLC控制器,它不仅满足了纺织的基本I/O工艺需求,更是...
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巴斯夫在华“豪赌”MDI 深度追踪报道 [2009-03-26] |
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| “我住长江头,君住长江尾。日日思君不见君,共饮长江水。”北宋名士李之仪的这首《卜算子》曾令无数后人为之悠然神往,其中更衬出长江之于中华文明的血脉关联。这位古人未曾想到的是,千百年后的今天,一个全世界最大的MDI化工厂计划在三峡库区附近拔地而起,这个故事的主角...
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