虚拟制造环境中制造装备的三维建模及动作模拟

虚拟制造中，三维加工装备建模是这种活动的仿真基础之一。该文以简单车床为例，具体研究了加工装备的三维模型简化和建立，然后剖析了模型的整体结构，并按照运动和非运动部分将其分块和组合，形成了模型的装配视图，建立了每个分块的局部坐标系统。在此基础上模拟了车床的相关分块的运动，最后形成了一个具有立体视效果的模拟环境，为加工装备的具体加工过程虚拟化建立了设备基础。     

PC/104总线工控机及其在饲料配料控制中的应用

通过一个应用实例来说明ＰＣ／１０４总线工控机不仅在结构、硬件、软件上与标准ＰＣ总线工控机完全兼容，而且由于采用模块化设计方法使之体积更紧凑、可靠性更高、功耗更低。     

2005年中国风电产业回顾和未来5年的展望

在对2005年风电装机容量进行准确统计的基础上,分析了风电场建设快速增长但国产设备制造能力仍然薄弱的态势。回顾2005年内发生的对风电具有里程碑意义的事件及对发展趋势的影响。指出“十五规划”期间风电的进展和教训,强调未来5a应以国产化能力和风电上网电量衡量业绩。     

火力发电厂工业冷却水系统工艺分析

从技术、经济和安全三个方面分析了采用不锈钢管材凝汽器的火力发电厂的工业冷却水系统，采用闭式循环工艺运行方式的合理性。     

我国功率型LED产业化关键技术

本文介绍了我国功率型LED产业链三个阶段的关键技术。     

钨冶炼产业现状与建议

叙述了中国钨冶炼产业的现状以及存在的问题,针对这些问题提出了几点建议。     

我国能源工业现状和能源政策

能源工业是我国国民经济的重要组成部分。要实现“十六大”提出的2020年国内生产总值翻两番的宏伟目标，充足、稳定、经济、清洁的能源供应是重要的物质保障。文中从能源产量与需求、能源结构优化、能源技术水平、能源体制改革、能源可持续发展、农村能源建设、能源效率等方面对我国能源工业现状进行深入分析，在此基础上指出未来中国的能源政策应包括5个方面：优化能源结构、提高能源效率、重视环境保护、保障能源安全、开发西部能源。     

软件抗干扰技术在工控系统中的应用

在工业控制领域中各种干扰信号很多。阐述了如何通过软件技术来提高单片机系统的稳定性。     

Stress-corrosion cracking of a monel 400 tube

A bent Ni-Cu Monel 400 alloy tube, which operated as part of a pipeline in a petrochemical distillery installation, failed by through-thickness cracking. The pipeline was used to carry a stream of gaseous hydrocarbons containing hydrochloric acid (HCl) into a reaction tower. The tower provided a caustic solution (NaOH) to remove HCl from the stream, before the latter was directed to a burner. Metallographic examination showed that the cracks were intergranular and were frequently branched. Although nominal chemical composition of the component was found within the specified range, electron dispersive analysis by X-ray (EDXA) indicated significant segregation of sulfur and chlorine on grain boundaries. Failure was attributed to hypochlorous-acid (HClO)-induced stress-corrosion cracking (SCC). The HClO was formed by the reaction of HCl with atmospheric O₂, and the oxygen entered the tube during shutdowns/startups of the installation. Residual stresses, originating from the in situ bend forming of the tube during assembly of the line, provided a driving force for crack growth, and the segregation of sulfur on grain boundaries enhanced the susceptibility of the material to cracking.     

Design of parts and manufacturing systems for reliability and maintainability

The design of parts and manufacturing systems can be viewed from different perspectives. This paper discusses the design of parts and manufacturing systems from reliability and maintainability perspectives. A convenient method of considering reliability and maintainability is through the use of design rules which are based on empirical and theoretical knowledge. Four design rules for improvement of reliability and maintainability of systems are presented. The design rules are proven and substantiated with numerical results. The relationship between the design for reliability and maintainability rules and design for manufacturing process rules is discussed.