In this paper, the forming process of copper wire ball in copper ball bonding has been studied by numerical simulation.
本文采用数值模拟的方法研究了铜丝球键合技术中的形球过程。
All was cleared up sometime later when news came from a distant place that an earthquake was felt the very day the little copper ball fell.
过了些时候，远方传来了消息：在小铜球坠落的当天，确实发生了地震。这一切终于得到了澄清。
All was cleared up some time later when news came from a distant place that an earthquake was felt the very day the little copper ball fell.
过了一些时候，从远方传来了消息：在小铜球坠落的当天，确实发生了地震。这一切终于得到了澄清。
All was cleared up some time later when news came from a distant place that an earthquake was felt the very day the little copper ball fell.
过了一些时候，从远方传来了消息：在小球坠落的当天，确实发生了地震。这一切终于得到了澄清。
The formation of black film and surface dissolving state of the kneaded phosphorized copper ball of the company were compared with those of low quality rolled phosphorized copper ball.
并将该公司揉制磷铜球黑膜形成及表面溶解状况与低质量轧制磷铜球进行了比较。
An annual output of more than 100 million locks beat, main products are: "doll" brand plating copper padlock series ball chrome, computer graphic billiard copper padlock series.
年产各类锁具100余万打，主要产品有：“娃娃”牌镀铬钢球铜挂锁系列，电脑平面弹子铜挂锁系列。
The main influence factors of preparing molybdenum copper nano-powder by high-energy ball milling were studied; the morphology and size of powders were analyzed.
研究高能球磨法制备纳米钼铜复合粉末的主要影响因素，通过扫描电镜和透射电镜分析粉末的形貌及颗粒尺寸。
The self - repair performance of micron copper in grease is evaluated with four - ball tester.
通过四球试验评价了微米铜在润滑脂中的自修复作用。
Building valves - Manually operated copper alloy and stainless steel ball valves for potable water supply in buildings - Tests and requirements.
建筑物用阀。建筑物内饮用水给水用手动铜合金和不锈钢球阀。试验和要求。
From the present study, it is found that single crystal copper wires can be bonded on the gold pad and the aluminum pad by thermosonic ball bonding and wedge bonding without gas protection.
从目前的研究中，它被发现，单晶铜线材可以键合金垫和铝焊盘上由无气体保护的热超声球焊和楔焊。
The self - repair performance of micron copper in grease is evaluated with four - ball tester.
通过四球试验，考察了微米铜粉在润滑脂中的摩擦学行为和抗磨性。
The mesh of copper tubes and loading ways of the balls are the key problems during three dimensional FE simulation of ball spinning of inner grooved tubes.
内螺纹管滚珠旋压三维有限元模拟中，铜管的网格划分和滚珠加载方式是模拟的关键问题。
The tribological properties and the anti-wear of micron copper powder in greases are investigated by four-ball test.
通过四球试验 ，考察了软金属微米铜粉在润滑脂中的摩擦学行为和抗磨性。
Abstract :Graphene oxide/copper (GO/Cu) composites were successfully synthesized through the ball milling and vacuum hot press sintering process.
采用球磨和真空热压烧结方法成功制备氧化石墨烯/铜复合材料。
The tribological properties and the anti-wear of micron copper powder in greases are investigated by four-ball test.
通过四球试验，考察了微米铜粉在润滑脂中的摩擦学行为和抗磨性。
The tribological properties and the anti-wear of micron copper powder in greases are investigated by four-ball test.
通过四球试验，考察了微米铜粉在润滑脂中的摩擦学行为和抗磨性。
应用推荐