失效分析

Based on theoretical analysis on the causes of sealing failure in cover flange of HU871 melt heat media exchange, the resolving measure was presented, according to which the originally used asbestos cover flange sealing gasket was replaced by basie type metai flexible graphite enwinding gasket.

在对HU871熔体热媒热交换器封头法兰密封失效原因进行理论分析的基础上，提出了解决该问题的方法；将原来的石棉封头法兰密封垫片改为基本型金属柔性石墨缠绕垫片。

ABSTRACT The scuffing mechanism of sliding lubricated line contacts has been analyzed theoretically and studied experimantally in this paper.

本文从理论分析与实验验证两方面研究了线接触金属摩擦副的表面胶合失效机理。

On the basis of the property analysis in sliding rough surface contacts, a new scuffing model has been formulated.

作者从粗糙表面接触的角度出发，抓住表面接触性能这一关键因素分析与研究了表面胶合失效机理。

ABSTRACT The scuffing mechanism of sliding lubricated line contacts has been analyzed theoretically and studied experimantally in this pape...

本文从理论分析与实验验证两方面研究了线接触金属摩擦副的表面胶合失效机理。

The β-unzipping method is simple and reasonably accurate method to find the main failure modes.

大跨度斜拉桥由于存在众多不同的失效模式，导致其体系可靠度分析比较困难。

Assistant engineer to do the failure analysis from supplier, plant, and field.

协助工程师进行分析来自于供应商，工厂，以及使用现场的失效。5。

The assembly of journal and plain bearing liner space is too little, force of organic still oil pressure is small it is the crucial index that affects lubricant result, make lubricate because of lacking engine oil between crankshaft and plain bearing liner and bite dead invalidation, include to be pulled badly, lack lube, layer of alloy of dry attrition generation is fused, grind sliding surface to did not maintain the oily film of certain ply, and all sorts of local overload exhaustion are destroyed, cavitation erosion and V form are destroyed etc, through technology of him director diesel locomotive old experience reachs the analysis of pair of its breakdown reasons, put forward precautionary measures especially. As a result of,the burns caustic mechanism plain bearing liner to burn caustic mechanism of 1 plain bearing liner is the lube film burst between journal and plain bearing liner, cause plain bearing liner and crankshaft generation clash, below high temperature, high pressure and high rotate speed, the wear-resisting alloy layer of plain bearing liner wears away prematurely or fuse, cause plain bearing liner and crankshaft to stick thereby bite, can make the steel back of plain bearing liner and Kong Zhong produces whirligig, inlet port is jammed, carry on the back by steel again with the friction of aperture causes high temperature to make plain bearing liner burned-out further, can cause bolt to break off, happen swing a malign accident that pounds cylinder body of bad internal-combustion engine.

轴颈和轴瓦的装配间隙太小，还有机油压力低是影响润滑效果的关键指标，使得曲轴和轴瓦之间因缺少机油润滑而咬死失效，包括严重拉伤，缺少润滑油，干摩擦产生合金层熔化，磨滑面没有保持一定厚度的油膜，以及各种局部过载疲惫破坏，气蚀和V形破坏等，通过本人主管内燃机车技术多年经验及对其故障原因的分析，特提出预防办法。1轴瓦的烧损机理轴瓦烧损的机理是由于轴颈和轴瓦之间的润滑油膜破裂，导致轴瓦和曲轴产生摩擦，在高温、高压和高转速下，轴瓦的耐磨合金层过早地磨损或熔化，从而引起轴瓦和曲轴粘咬，会使轴瓦的钢背和座孔中产生旋转运动，进油孔被堵塞，再由钢背和座孔的磨擦进一步引起高温使轴瓦烧坏，并会造成螺栓折断，发生甩出捣坏内燃机缸体的恶性事故。

Based on the failure type of the guide roller for bar or wire mill, the contrasting experiment on the high temperature wear resistance of GJH 2 cermets and Gx casting alloys at different heat treatment condition and temperature was carried out, and the GJH 2 cermet was used as the guide roller of mill.

在分析棒、线材轧机使用的 Gx铸造合金导卫辊失效形式的基础上，对不同热处理状态的GJH- 2合金和 Gx铸造合金，在不同温度下的高温磨损特性进行了对比试验，并将 GJH- 2合金制成导卫辊在轧机上进行了装机试验。

It makes knowledge acquisition come true to obtain diagnosis rule base according to the fault tree.

由此突出了故障树分析法在建造大型复杂的失效诊断专家系统中的重要作用。

In the process of making a knowledge base, Fault Tree Analysis is one of effective methods to analyze problems of complicated system, which can reduce the difficulty of obtaining system knowledge in failure diagnosis expert system for pressure vessels.

在知识库的建造过程中，故障树方法是分析复杂系统失效问题的有效方法之一。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。