薄壳成型技术研究进展

介绍了一种新型注射成型技术－薄壳成型（TWM）技术，阐述了TWM的工艺特点，制品、模具设计和材料的选择，探讨了TWM技术的CAE分析技术，讲座了成型过程中粘度的压力依赖性，确立了适于TWM分析的粘度模型。     

板料激光成形技术

综述了激光成形技术的国内外发展史及其研究现状，分析了激光弯曲成形技术的优点，探讨了激光弯曲成形技术的原理及成形机理，并且论述了激光弯曲成形的影响因素，展望了板料激光成形技术的应用前景。     

建筑设备自动化的现状与发展趋势

介绍了建筑设备自动化的历史及现状，分析了建筑设备自动化技术的发展趋势，详细介绍了提高设备可靠性方法的智能卡技术、可视化技术、家庭智能卡技术、无线电局域网技术、数据卫星通信技术以及现场总线在建筑物中的应用技术，为加速发展我国建筑设备行业的自动化提供了重要的信息。     

CR技术介绍

参考有关标准与文献，系统介绍了CR技术，包括IP板结构与特性、CR系统、CR技术应用的一般控制，并简要介绍了关于CR技术的一些试验结果，提出了关于CR技术与胶片照相技术等价性的基本看法。     

焊接机器人技术现状与发展趋势

简要介绍了机器人焊接支柱发展历程，从5个主要方面论述了机器人焊接技术的研究现状，即焊接跟踪技术，焊接机器人与外国设备的协调控制技术，焊接机器人用弧焊电源，仿真技术与机器人用焊接工艺方法，并对焊接机器人技术的未来发展趋势做出了展望，其中智能化技术，虚拟现实技术与控制技术是主要发展方向。     

快速成型技术及其对制造业的影响

介绍了快速成型技术的原理和特点，分析了快速成型技术的应用及其对制造业的影响，指出了快速成型技术的发展趋势，并对发展我国快速成型技术提出了几点建议。     

金属塑性微成形技术的理论探讨

介绍了塑性微成形技术的发展背景及其基本特点，阐述了塑性微成形技术的研究现状，综述了尺寸效应及其对塑性微成形工艺的影响，探讨了塑性微成形技术发展过程中所面临的一些技术难点，并对其发展趋势进行了预测。     

金属的复合成形技术及其发展

引入了“复合成形技术”的概念，并对其现状及发展进行了阐述。如现代的科学越来越相互交叉、渗透，出现许多边缘学科、交叉学科一样，材料成形技术也逐渐突破原有铸、锻、焊等技术相互独立的格局，相互融合、渗透，“复合成形技术”的产生是技术发展的必然结果。这种技术的复合已经不仅限于材料“成形”的范围，也延伸到材料制备技术与成形技术的融合。可以说，“复合成形技术”是成形技术领域的一种创新，是将两种或两种以上的传统成形技术在时问、空间或物态上进行集约化组合而形成的一种全新概念的技术，有广阔的技术发展和应用空间。     

废弃电路板的资源特点及回收处理技术

本文对废弃电路板的资源特点进行了总结，综述了目前应用较广的几种废弃电路板回收技术，即机械处理法、火法、湿法和热解技术，简要分析了现有技术的优势和不足，并展望了废弃电路板资源化技术今后发展的方向。     

市政公路施工技术中的细节问题及建议

随着现代市政工程建设事业的快速发展，市政公路施工技术运用面临着崭新局面，如何有效运用多样化的技术方法策略，全面优化提升市政公路施工技术成效，备受业内关注。基于此，文章介绍了市政公路施工的基本内容，分析了市政公路施工管理的重要性。在探讨市政公路施工技术中常见问题的基础上，结合相关实践经验，分别从加强施工方法控制和技术管理等多个角度与方面，探讨了提升市政公路施工技术成效的方法策略。     

新型的治疗阿尔茨海默氏症药物(1-二甲基磷酰基-2,2,2-三氯)-乙基-1-醇烟酸醋对体外神经细胞的作用

目的: 观察本实验室合成的一种治疗阿尔茨海默氏症(AD)的药物(1-二甲基磷酰基-2, 2, 2 -三氯)-乙基^-1-醇烟酸醋(NMF),对体外培养的皮层神经细胞活性的影响以及对海人藻酸(KA)所致的神经损伤的保护作用。方法: 采用体外培养皮层神经元的方法,解剖分离 15 d胚胎小鼠皮层神经细胞, 接种于 96孔板,48 h 后加药并培养 72 h,以 MIT 法 观察 NMF 对小鼠皮层神经细胞活性的影响;同时将接种于 24 孔板的细胞预先给予 NMF,d 3 时加或不加KA处理后,以台盼蓝染色鉴别并计数死、活细胞,可得出细胞的存活率。结果: NMF 明显促进胎鼠皮层神经元活性,其中 NMF1、0. 1、10nmol·L^-1促进神经元活性增殖率分别高达 34.7%、37.4%、36. 7%, NMF 明显促进正常胎鼠皮层神经元存活卒,与对照组比较,10nmol·L^-1 NMF 对皮层神经元的存活率分别提高 39.3%、73.5%。 NMF能显著 对抗 KA 所致的神经元损伤,与 KA 损伤组相比, NMF0.1、10、10nmol·L^-1对损伤皮层神经元的保护率分别为 77.30%、80.10%、84.15%。结论: NMF 明 显促进胎鼠皮层神经元的洁性、提高正常皮层神经元,的存活卒,并能有效地保护KA所致的神经元损伤,提示 NMF 是一种很有潜力的治疗 AD 的药物。     

Three-Dimensional Growth of Coherent Ferrite in Austenite: A Molecular Dynamics Study

Coherent second phase often exhibits anisotropic morphology with specifi c orientations with respect to both the second and the matrix phases. As a key feature of microstructure, the morphology of the coherent particles is essential for understanding the second-phase strengthening eff ect in various industrial alloys. This letter reports anisotropic growth of coherent ferrite from austenite matrix in pure iron based on molecular dynamics simulation. We found that the ferrite grain tends to grow into an elongated plate-like shape, independent of its initial confi guration. The fi nal shape of the ferrite is closely related to the misfi t between the two phases, with the longest direction and the broad facet of the plate being, respectively, consistent with the best matching direction and the best matching plane calculated via the Burgers vector content(BVC) method. The strain energy calculation in the framework of Eshelby's inclusion theory verifi es that the simulated orientation of the coherent ferrite is energetically favorable. It is anticipated that the BVC method will be applicable in analysis of anisotropic growth and morphology of coherent second phase in other phase transformation systems.     

Effect of Short-Time Aging on the Pitting Corrosion Behavior of a Novel Lean Duplex Stainless Steel 2002

The effect of short-time aging in the temperature range between 400 and 1000 °C on the pitting corrosion behavior and mechanical property of a novel lean duplex stainless steel(LDSS) 2002 was investigated through the potentiostatic critical pitting temperature(CPT) tests and the Charpy impact tests. Both the pitting corrosion resistance and the toughness of aged specimens degraded due to the precipitation of detrimental secondary phases and the most significant reduction of CPT and impact energy emerged at 650 °C concurrently. The CPT of LDSS 2002 specimen aged at 650 °C decreased by 28 °C, and the impact energy dropped from 69 to 29 J/cm~2 compared with the solution-annealed sample. Transmission electron microscopy characterization showed that the main precipitates in LDSS 2002 were Cr_2N and M_(23)C_6 along the ferrite–austenite grain boundaries.     

INTRODUCTION TO PATENTS

The invention provides a method of making a mold which can reduce SOx generation rate while preventing decrease in hardening rate in the case of using sulfuric acid for a hardener composition. The method has a mixture step in which fire-resistant particles, a hardener composition and a binder composition are mixed to obtain a composition for a mold. The hardener composition contains sulfuric acid. In the mixture step, sodium carbonate is added. A molar ratio of the sulfuric acid to the sodium carbonate is 0.5 or more and 4.0 or less.     

China Foundry Week 2014

China Foundry Week, hosted by the Foundry Institution of Chinese Mechanical Engineering Society （FICMES） each year, is a large academic event in China. It is one of the ten high-impact activities sponsored by the Chinese Mechanical Engineering Society.     

17th Conference of Hydrodynamic and Electromechanical Control Engineering Call for papers

正1.Contents In order to promote the academic exchanges and technical communication of the research in the field of fluid power transmission and control,fluid control engineering specialized committee of the Chinese Society of Theoretical and Applied Mechanics will hold the 17th Conference of Hydrodynamic and Electromechanical Control Engineering on July 27-29,2014 in Tibet,Lhasa city.     

Information for Contributors

正The Transactions of Nonferrous Metals Society of China,founded in 1991 and sponsored by The Nonferrous Metals Society of China,is published monthly now and mainly contains reports of original research which reflect the new progresses in the field of nonferrous metals science and technology,including mineral processing,extraction metallurgy,metallic materials and heat treatments,metal working,physical metallurgy,powder metallurgy,with the emphasis     

Preface

<正>We are pleased to present this Special Issue of Transactions of Nonferrous Metals Society of China containing selected papers from the First Asian Conference on Aluminum Alloys(ACAA-2013),held in Beijing,China,13–17 October 2013.This conference has been initiated,with approval of     

Information for Contributors

The Transactions of Nonferrous Metals Society of China, founded in 1991 and sponsored by The Nonferrous Metals Society of China, is published monthly now and mainly contains reports of original research which reflect the new progresses in the field of nonferrous metals science and technology, including mineral processing, extraction metallurgy, metallic materials and heat treatments, metal working, physical metallurgy, powder metallurgy, with the emphasis on fundamental science. It is the unique preeminent publication in English for scientists, engineers, under/post-graduates on the field of nonferrous metals industry. This journal is covered by many famous abstract/index systems and databases such as SCI Expanded, Ei Compendex Plus, 1NSPEC, CA, METADEX, AJ and JICST.     

Formulas of Tension of Continuous Rolling Process

The development of computer controlled continuous rolling process calls for a mathematical expression that can express the inequality condition of "constant flow". Tension is the link of the continuous rolling process. From the condition of dynamic equilibrium, a differential equation of tension is given out. On the basis of the physical rules established from the industrial practice and experimental studies, the law of volume constancy, the linear relation of forward slip and tension, the state equation of continuous rolling, the formula of dynamic tension, and the formula of static tension have been obtained. These formulae reflect the functional relations between tensions, thickness, roll velocity, and time in the continuous rolling process. It is implied that the continuous rolling process is a gradually steady, controllable, and measurable dynamic system. An assumption of predicting the thickness of a steel plate using these tension formulae is also put forward.