Powerful mechanical transmission case controlled speed can be changed quickly, and will not decrease developed power, assuring low breakdown rates. 速度以强力机械式变速箱控制,能快速变化速度,不减低出力,故障率极低。
When a major mechanical breakdown occurs it can cost the homeowner thousands of dollars. 当发生重大机械故障可以成本房主几千美元。
The study indicates that the tool magazine and the mechanical arm are the weakest point of the reliability in making the breakdown rate of the host machine so high. 研究表明:加工中心机床本体故障率最高,刀库与机械手是其可靠性最薄弱的环节。
In the air transportation delays, Delay is rational because of the force majeures such as weather, natural calamity, military control and so on; yet other reasons that cause delays are unreasonable, such as mechanical breakdown, improper arrangement. 航空运输延误中,因天气、自然灾难、军管等不可抗力原因造成的延误为合理延误,但由于机械故障、调配不当等其他原因导致的延误为不合理延误。
During the long operational time, the film insulation is exposed to the electrical, thermal and mechanical stresses, which will cause insulation degradation and lead to breakdown finally. 绝缘薄膜材料在长期的运行过程中,受到电、热、机械和环境因素的联合作用,其性能将因此逐渐变坏,并最终导致绝缘击穿。
On-line condition monitoring and signal analysis is a new developing technology that has been developed to meet the need of modern manufacture in recent decades, and it has been justified in practice as an effective technology for protecting mechanical equipment from breakdown. 在线状态监测与信号分析是近年来为适应现代化生产而发展起来的一门学科,已经被实践证明是提高机械设备运行可靠性的一个行之有效的手段。
Present Situation and Development Tendency of Examination and Diagnosis Technology about Mechanical Equipment Breakdown 机械设备故障检测诊断技术的现状与发展
The polymer is widely used in fields of electric and electronic insulation, but local fields ( electric fields, mechanical stress) distortion induced by space charges in polymers will greatly affect properties of polarization, conductance, short-term breakdown and long-term breakdown. 聚合物在电气、电子绝缘中应用极为广泛,但其中的空间电荷诱导的局部场(电场、力场)畸变,将对极化、电导、短时及长时击穿特性带来巨大影响。
Cause analysis of mechanical breakdown associated with a small turboexpander and solutions 小型透平膨胀机机械故障原因分析及处理
Polypropylene ( PP) has superior chemical corrosion-resistant, mechanical properties, insulation performance and breakdown field, and it is extensively used to power capacitors insulation materials. 聚丙烯由于耐化学腐蚀性、力学性能、电绝缘性能好,击穿场强高等特点,被广泛的应用于电力电容器的绝缘材料。
Properties of hybrid films including the morphology, thermal stability, mechanical properties, and electrical breakdown field strength were also characterized and tested. 本文对改性粉体的沉降体积、亲油化度、表面羟基,以及该杂化薄膜的微观形貌、热稳定性、力学性能、击穿场强以及介电性能进行表征与测试。
During working process, such mechanical failure as teeth breakdown of transmission system and plastic deformation of load flat appears frequently, which result in the break of production, even the paralysis of whole product line, so tremendous economic loss is inevitable for corporations. 工作过程中常常出现传动系统齿断、载荷平台塑性形变等机械故障,由此导致生产断续,甚至造成整条生产线瘫痪,给企业带来巨大经济损失。