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本文介绍了电器附件产品质量安全影响因子的定义、分类,运用FMEA和FTA方法分析了电器附件产品质量安全影响因子,提出了电器附件产品质量安全影响因子的控制方法,旨在提高电器附件产品的质量安全。 相似文献
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铸件生产中树脂砂工艺对于提高产品质量有着重要意义。文中探讨了树脂砂工艺用于批量生产高压防爆电机铸铁件时存在的问题,如铸件材料质量控制、炉前控制、工艺工装设计等,并提出了相应的措施,取得了较好的成果。 相似文献
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本文在阐述影响军用电连接器产品质量一致性因素和我国军用电连接器数字化生产过程质量控制现状的基础上,分析比较了我国与发达国家军用电连接器生产模式的差异,指出了实现我国军用电连接器数字化生产过程质量控制的关键要点,并提出了有关建议。 相似文献
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本文主要分析了风电场用交联电缆导体在原材料、性能指标、工艺过程和最终检验等方面的控制,阐述了风电场用交联电缆导体绞合过程中的工艺控制对成本的影响,并提出了导体线芯严格过程控制后提高了电缆的产品质量,在激烈的市场竞争中具有重要意义。 相似文献
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本文针对低压成套开关设备接地装置的质量控制提出了各类措施,同时也是每个企业对企业管理和产品质量长抓不懈、持之以恒的有效措施。 相似文献
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介绍了用光学显微镜法对铁氧体预烧料进行显微组织检测的方法,通过对铁氧体预烧料球团显微组织检测来控制预烧料产品质量,论述了预烧料显微组织对产品特性的影响及在工业生产产品质量控制中的应用. 相似文献
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电站锅炉停用保护剂多采用十八胺和表面活性胺。对这2种停用保护剂进行了应用效果对比研究,即对湿冷机组、空冷机组采用十八胺或表面活性胺、有无凝结水精处理系统等6台机组停机和启动过程中给水、主蒸汽和凝结水的氢电导率变化情况进行分析。研究结果表明:在停机过程和启动过程,2种保护剂均会在水汽系统中发生部分分解,导致水汽系统的氢电导率显著升高;表面活性胺和十八胺比较,使用前者,机组启停机过程可保持凝结水精处理系统正常投运,因而可使水汽质量迅速达标,对机组安全运行有利,因此推荐采用表面活性胺作为锅炉停用保护剂。 相似文献
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特高压线路工频参数测试干扰分析是选择适合工频参数测试方法及测试结果分析的重要基础。测试了1 000 kV皖南-浙北特高压线路正序和零序参数测试期间的干扰电压信号,分析了其频谱特征;在此基础上,通过与正序参数仿真计算值的对比分析了正序参数实际测试偏差。结果表明:皖南-浙北特高压同塔双回线路工频参数测试期间,干扰电压存在“三相不平衡性及时变性”的特点;工频法和异频法2种不同方法得到的线路参数测试结果存在一定差异;干扰电压“时变”时,线路工频参数测试宜采用异频法。 相似文献
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《国外电子测量技术》2014,(10)
正Qingdao,China7.16-19,2015The International Conference on Electronic MeasurementInstruments(ICEMI)is the world’s premier conference dedicated to the electronic measurement and test of devices,boards and systems that is covering the complete cycle from design,verification,test,diagnosis,failure analysis and process of manufactory and products 相似文献
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《国外电子测量技术》2014,(9)
正Qingdao,China7.16-19,2015The International Conference on Electronic MeasurementInstruments(ICEMI)is the world's premier conference dedicated to the electronic measurement and test of devices,boards and systems that is covering the complete cycle from design,verification,test,diagnosis,failure analysis and process of manufactory and products 相似文献
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Cuba’s electric sector is approaching an inflection point. Although the country has historically relied upon non-commercial barter agreements for imported oil to meet its electric demand, a combination of factors including reducing imports, increasing demand, and ambitious climate change goals suggest new pathways forward may be warranted. The way Cuba responds to near- and long-term challenges will help set the stage for its energy future. This article describes Cuba's electric sector and provides a set of key recommendations to consider going forward. 相似文献
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S. Y. Wu B. N. Tran F. Y. Davis C. L. Trent D. L. Edberg W. A. Geideman 《Integrated ferroelectrics》2013,141(3):281-291
Abstract Smart materials of lead-zirconate-titanate (PZT) piezoelectric ceramics have attracted attention in recent years for active vibration control, acoustic noise suppression, health monitoring and damage assessment. We at McDonnell Douglas Aerospace have been studying these ceramics for use as sensors and actuators in various space and aircraft structures. In this paper, we will report results of a recent study on active vibration control using monomorph PZT actuators. The experiments were performed on thin aluminum cantilever beams. Collocated and non-collocated sensors and actuators were employed. Two control techniques: the classical velocity feedback and adaptive feedback controls, were investigated. We have obtained significant damping and broadband vibration attenuation of greater than 30 dB using the classical control with the single-input single-output feedback approach. A 24 dB reduction has also been achieved using the adaptive control with the multiple-input single-output approach. Detailed experimental methods and results will be described. 相似文献