对H13热挤压齿轮模的表面失效进行了分析，为提高H13热挤压齿轮模的寿命对其进行了离子渗氮。
The surface invalidation of H13 hot extruding gear die is analyzed, ion nitriding is used in order to improve H13 hot extruding gear die life.
针对3DK9开关晶体管在应用中出现表面漏电失效的具体案例进行分析研究。
Some failures of 3DK9 switch transistors with higher surface leakage current were analyzed.
利用场发射扫描电镜(FESEM)及其附带能谱仪研究了失效空心阴极发射体的表面形貌、元素组成。
Surface morphology and composition analysis of the failure emitter of hollow cathode were characterized by using FESEM and EDS.
研究了在铜合金表面电镀纯铜层保护膜对铜合金引线框架氧化失效的影响。
The effects of surface electroplate pure copper on oxidation failure of lead frame copper alloys for IC package were investigated.
经多次分析，确定主要原因是应力集中和表面质量差引起的疲劳失效。
Through analysis many times, the main reason is fatigue failure that is caused by stress concentration and surface quality.
在海洋等服役环境的作用下，船舶表面的防腐蚀涂层会受到侵蚀而逐渐失效，最终导致金属基体材料的腐蚀破坏。
In the Marine environment, the ship's anti-corrosion coating surface will be gradually eroded to failure, eventually leading to the metallic matrix material corrosion damage.
在半导体电子封装，电子制造，表面镀层及涂覆，失效模式分析和可靠性评估方面具有丰富经验。
He has extensive experience in the fields of semiconductor and electronic packaging, electronic manufacturing, surface finishes and coatings, failure mode analysis and reliability assessment. Dr.
设计的一种气体保护填料迷宫组合密封结构可以解决粉体介质密封因粉体颗粒进入密封装置引起密封表面磨损导致密封失效问题。
A gas protection seal for powder was designed to solve the problem that powder into seal makes seal surface wore, which results in seal failure.
利用光学金相和电子探针等分析手段，对铅青铜轴套内表面出现凹坑及碎粒造成的磨损失效进行了分析。
The failure mechanism of lead bronze shaft sleeves with many pits on their internal surface is analyzed by optical metallograph and EPMA.
用摩擦学的观点分析了冷拔顶头磨损失效过程，提出了冷拔顶头表面强化措施。
Based on analysis of the process of pipe cold-drawing plug's wear-caused failure with the Dointview of friction science, measures for surface strengthening of the said plug were made.
与湿敏传感器的湿度计相比，由于不存在表面污染失效的情况，所以解决了传感器使用寿命短的问题。
Compared with the prior hygrometer with a moisture sensitive sensor, the invention solves the problem of short service life of the sensor as no failure resulting from the surface contamination occurs.
轧机用四列圆柱滚子轴承的主要失效形式及原因是滚道表面疲劳剥落、裂纹和保持架的过早损坏。
The main failure types of four row cylindrical roller bearings, used in rolling mills, are: fatigue flakings, cracks on the raceway surfaces, and the premature damage of cages.
通过对油管表面缺陷、金相组织的观察及油管力学性能的测定确定两件油管的失效原因。
Observations on surface defects, metallurgical examination and mechanical properties evaluation of the oil pipes were performed to assess the possible failure reasons.
去除塑料包封层，露出芯片表面，是DPA(破坏性物理分析)及FA(失效分析)的关键一步。
It is a crucial step for destructive physical analysis (DPA) and failure analysis (fa) to remove the plastic package for the die exposing.
认为，油管失效是由于微电池腐蚀造成的，腐蚀先在钢管外表面能构成电池回路的珠光体晶粒中进行，然后逐渐扩展到周围的晶粒。
Micro cell corrosion originally carried out in pearlites on the external surface of the pipe where micro cell circuit could be formed, and gradually developed and spreaded.
结果表明，导致活塞销失效的主要原因是活塞销内表面在发动机装配使用前存在折叠裂纹。
The results indicate that the main reason causing the failure of the piston pin is fold cracks in inner-surface of the piston pins existing before that the engine is assembled and tested.
采用新型的内孔电刷镀技术对失效的发动机缸套内表面进行了再制造。
Abstract :A novel bore brush electroplating technology was applied in remanufacturing for internal surface of failed engine cylinder body.
在高速和轻载工况条件下，打滑擦伤往往成为圆柱滚子轴承的主要失效形式，而表面粗糙度对轴承打滑损伤有很大的影响。
Under high speed lightly loaded conditions, skidding damage often becomes one of the main damage forms for cylindrical roller bearings while surface roughness has great effect on skidding damage.
表面非均匀磨损是重载车辆主离合器分离环常见的失效形式。
The nonuniform wear is a popular failure mode of separating ring of heavy vehicle clutch.
结果表明，损伤失效部位主要集中在涂层，形式包括表面磨损以及磨损引起的开裂。
The results show that the disabled parts are mostly focused on the coating, such as surface abrasion, cracking because of abrasion.
形成的蚀点最终覆盖整个涂层表面，意味着涂层完全失效。
When the corrosion spot covers the whole surface, it is displayed that the coating fully loses its…
研究了高速走丝电火花线切割加工中切割效率、表面粗糙度、表面微观形貌的变化，指出采用切割效率作为工作液失效的表征更为直观和准确。
The changes of cutting speed, surface roughness and surface topography were researched. Adopting cutting speed as characterization of cooling liquid failure is more intuitive and accurate.
模具主要是依靠其表面进行工作，因此，模具的失效80%以上来自表面损伤，如磨损、疲劳、腐蚀等。
Molds rely mainly on their surface to work, therefore, more than 80% of failures is due from surface damage, such as wear, fatigue, and corrosion.
磨损是冶金备件主要的失效形式之一，用激光对冶金备件表面进行强化处理是目前国内刚刚起步的一项新工艺。
Wear-and-tear is one of principal inactive forms of metallurgical spare parts. The laser reinforcing treatment of metallurgical spare parts surface is a new starting process in our country.
研究表明，表面缺陷是螺旋弹簧疲劳失效的主要原因。
Research indicate that the surface defect is main reason for fatigue losing efficacy of coil spring.
环氧胶接接头在水中破坏失效的原因主要是渗入到胶接层的水分子取代了胶粘剂分子在金属表面的粘附。
The reason of the failure of epoxy bonded joint in water was that the epoxy adhesive on the metal surface was substituted for water.
研究了大量失效手机中的镀金触点后发现，触点表面污染是造成电接触故障的主要原因之一。
The contamination on contact surfaces was found to be one of the main reasons to cause electric contact failure by analyzing lots of gold plated contacts in failed mobile phones.
采用扫描电镜及能谱分析对热轧管用失效芯棒的表面缺陷进行分析，探讨了芯棒表面缺陷的产生原因和长大机理。
Scanning Electronic Microscope(SEM)and EDAX were used to analyze the surface defect of mandril for hot rolling steel tube. Appearance and growth of the surface defect were investigated and discussed.
采用扫描电镜及能谱分析对热轧管用失效芯棒的表面缺陷进行分析，探讨了芯棒表面缺陷的产生原因和长大机理。
Scanning Electronic Microscope(SEM)and EDAX were used to analyze the surface defect of mandril for hot rolling steel tube. Appearance and growth of the surface defect were investigated and discussed.
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