生活的启迪

生活常常给人以多种多样的启迪,日积月累,就像一把闪光的钥匙,开启智慧的大门。生活的启迪常常是一掠而过。稍纵即逝,犹如江河里的浪花,黑夜中的闪电;生活的启迪忽隐忽现,时断时续,好像秋雨一般密集,山风一般连绵。要捕捉它,却不那么容易,惟有热爱生活     

大话铝业江湖

<正>数年来,在云谲波诡的铝业江湖中,城头旌旗变幻,大佬厮杀暗战,樯橹灰飞,战马哀鸣,将士成骨。待江湖尘埃稍定之时,且看繁华与风靡,凋敝与离弃,一切冥冥然皆有定因。时光进入"钱经时代",不再刀光剑影,流血五步。话说今日之铝业江湖,有三位亲兄弟,老大名叫氧化铝,老二名叫电解铝,老三名叫铝加工。虽为一母同胞,但高堂已逝,各立门户。三家生意不同,互为依托,原本顺风顺水。数年风雨洗涤,今日三人家产各异:老大种粮买粮,昼夜磨面,家产平平,眼见余粮不足,     

发挥整体优势 力推高端产业——南山铝业积极推进发展方式转变

面对新的形势和任务,南山铝业增强忧患意识和风险意识,坚定发展信心,抓住新的历史机遇,充分发挥自身产业链的优势,科学谋划,积极应对,突出重点,着力推进,保持企业的又好又快发展,实现“铸就百年南山”的远大目标。     

旧数控螺杆铣床的改造

0 引言 旧数控机床,使用多年,数次维修更换,结果后换的驱动器完好无损,还可以继续使用,而数控系统已彻底损坏,无法修复.机械虽有磨损,但仍可继续使用.     

2007年1～10月我国轿车产量超过2006年全年

据中国汽车工业协会统计,2007年1～10月,基本型乘用车(轿车)产销保持较快增长,其中产量超过2006年全年,达到387.34万辆,同比增长23.58%,销量也与2006年大致相当,达到380.33万辆,同比增长25.19%.     

麦德美科技(苏州)有限公司

麦德美公司简介MacDermid Greater China组织及沿革:MacDermid Incorporated,总公司位于美国科罗拉多州丹佛市(Denver,Colorado),具90年历史,全世界有25个分公司,三个研发中心,十二个制造工厂。麦特化学公司位于台湾新竹湖口工业区,麦德美精细化工位于广东省番禺及麦德美科技公司位于苏州,皆是美国MacDermid之直接分公司,三公司皆有制造,销售、技术、仓储、实验室、进出口等,大中华逾300员工,下分有IP工业电镀部门,     

透析营销失败的10大原因

经验主义,没有创新 　　一些企业或个人成功后,总是喜欢用过去的思路经营新的品种.殊不知任何新品都有差异性,他们的消费对象、产品的核心卖点及表现力均是不同的,经验主义很容易使产品销售走弯路,甚至导致营销失败.作为老产品,包装也要常更新,但要沿袭原有的核心记忆点与要素,才能使市场趋于稳定,甚至增长.……     

浙江省环保厅督查瑞安电镀行业整治提升工作

前不久,浙江省环保厅督查组来瑞安市专项督查电镀行业整治提升工作,副市长陈荣臻陪同。据悉,瑞安市有电镀企业95家,镀槽总容量341.47万升,2011年行业总产值36亿元,约占全市工业总产值的3.2%;COD排放量297吨,占全市16.6%。2012年是瑞安市电镀行业整治全面提升的决战之年。年初以来,根据省、温州市有关工作部署,瑞安市严格按照"关停淘汰一批,整合入园一批,规范提升一批"的整治思路,紧盯目标,狠抓落实,大力目前     

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, INSPEC, CA, METADEX, AJ and JICST.     

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, INSPEC, CA, METADEX, AJ and JICST.     

胫骨生物陶瓷复合材料的微结构增韧机理

扫描电镜观察显示胫骨是一种由羟基磷灰石和胶原蛋白组成的自然生物陶瓷复合材料.羟基磷灰石具有层状的微结构并且平行于骨的表面排列.观察也显示这些羟基磷灰石层又是由许多羟基磷灰石片所组成,这些羟基磷灰石片具有长而薄的形状,也以平行的方式整齐排列.基于在胫骨中观察到的羟基磷灰石片的微结构特征,通过微结构模型分析及实验,研究了羟基磷灰石片平行排列微结构的最大拔出能.结果表明,羟基磷灰石片长而薄的形状以及平行排列方式增加了其最大拔出能,进而提高了骨的断裂韧性.     

面向零件形状的计算机图形库的开发

论述了CAD技术中参数化设计的三种建模方法，重点介绍了基于特征的参数化建模原理。在此基础上，分析机械设计中的机构结构，归纳出其零件的几何特征构成。设计了机构CAD图形库，并提出了该图形库生成步骤和人机交互界面。     

FeCrAIW电弧喷涂层组织的致密化研究

采用激光辐照对FeCrAlW电弧喷涂层的组织进行致密化处理,借助扫描电镜和X衍射对涂层的组织进行了分析.测试了涂层的显微硬度.结果表明:涂层组织致密度提高,孔隙率明显降低.随着激光扫描速度的增加,涂层的显微硬度降低.在较低的扫描速度下,涂层与基体之间形成互熔区,涂层与基体之间产生良好的冶金结合.     

钢材打捆机控制系统智能化技术的研究

钢材打捆机是一种用于轧钢精整工艺的新型自动化设备，其控制系统基于SiemensS7 PLC和TP7触摸屏。系统的智能化技术主要包括：液压高低压自动控制、在线监视、离线故障检测、多台设备协同工作、可视化人机交互技术。本文描述了这些技术的原理与实现方法。     

Ab-initio calculation of enthalpies of formation of intermetallic compounds and enthalpies of mixing of solid solutions

A large number of ab-initio calculations of energies of formation of intermetallic compounds have been performed in the last 15 years. The currently used methods are listed. The paper presents a review of the aluminium based compounds which have been studied. Comparisons of calculated and experimental enthalpies of formation are provided for aluminim-3d and-4d transition metal alloys at equiatomic composition. The modelling of the enthalpies of mixing of solid solutions based on a given lattice is described.     

Features of formation of the structure in production of blanks of disks of heat-resistant nickel alloys

Conclusions To provide a high level of mechanical properties in wrought blanks of cast ÉP741NP and ÉP962 alloys it is necessary to form controlled structures. A necklace-type structure formed in homogenizing isostatic treatment, subsequent thermomechanical working including alternation of the operations of deformation in the (+)-area and recrystallization anneals, and final heat treatment is preferable. The temperature conditions of all stages of thermomechanical working are strictly controlled, especially the final operation of deformation and heating for hardening. To eliminate hardening cracks and distortions it is necessary to use molten salts at t=600°C as quenchants. The use of multiple production operations makes it possible to significantly reduce the structural inhomogeneity related to inhertance of the original dendritic structure. However, the structure of the final semifinished product is nevertheless characterized by a difference in occurrence of the processes of polygonization and recrystallization between the former dendritic cells and the interdendritic spaces in deformation and heat treatment.To obtain structurally homogeneous blanks for gas turbine engine parts it is necessary to use basically new methods of remelting such as vacuum double electrode remelting and electron beam remelting with an intermediate vessel.Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 12, pp. 25–29, December, 1991.