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一、真空技术的应用 传统的真空技术应用领域有石油、化工、冶金、航空航天、造纸、机械、原子能、光学等等。随着高新技术的发展,真空技术已经运用到环保、食品、电子、农业、电工、医药和医疗器械、建筑材料等各行各业。这些行业和领域由于采用了真空技术、不但其技术含量大大增加、其产品品质大大改善、其产值和利润也成倍增长。 相似文献
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本文针对自行研发的HOME PLAY插座,以体积小、线条流畅、外形美观、功能多、采用分解组合并用且带有夜间发光指示装置插座。 相似文献
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《Manufacturing Engineer》1992,71(6):36-39
Applying statistical analysis to manufacturing small batches can have its problems. Harvey Maylor and Paul Lowe explore statistical process control for small batch production with advanced manufacturing systems. 相似文献
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Low contact resistance between metal surfaces is often observed in spite of interposed lubricant and/or oxide films. To study this effect an apparatus is used with which normal force and tangential microdisplacement are applied between a small lead rider and a gold flat with various surface film conditions. Simultaneous oscillograph records are made of forces, displacement, and contact resistance. A unique low compliance force transducer allows direct recording of the frictional behavior during microdisplacement. Under nonoxidized and nonlubricated conditions, and with either oxide or stearic acid lubricant film alone, friction is high and contact resistance is low. With oxide and lubricant together, friction is much lower and slide is smooth, but contact resistance remains low and Ohm's law is obeyed. The results are consistent with Greenwood's theory of contact resistance for a cluster of minute metallic contact spots within the load-supporting area. The contact resistance of such a cluster is indistinguishable, for practical purposes, from that given by complete metallic contact. 相似文献
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为使小量程称重传感器具有较高的灵敏度和刚度,其弹性元件多为各种平行梁结构,采用低弹性模量的硬铝合金制造,但外形尺寸较高。本文介绍一种以合金钢为弹性元件材料的新型小量程平板式称重传感器,既具有很低的外形又可以得到较高的灵敏度和刚度。文中重点介绍了平板式称重传感器的结构与特点,受力分析与理论计算,并给出了结构设计与计算实例。 相似文献
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根据高速公路机电设备的实际使用情况,结合多年高速公路现场的工作实践,总结高速公路小型UPS的选型思路及相关实践。 相似文献
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一种小型磁偏转式质谱计 总被引:1,自引:0,他引:1
本文报道一种由电子轰击型离子源、扇形磁分析器与法拉第筒式离子检测器组成的小型质谱计,介绍其设计参数、结构与性能。此仪器可用于气体分析以及轻元素的同位素丰度测定。 相似文献
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小模数硬齿面齿轮具有广泛的应用价值,本文主要介绍了用进口硬质合金滚刀直接加工小模数硬齿面齿轮的刀具及工艺方法。 相似文献
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