复合强韧化处理9SiCr制钉模失效分析

通过断口分析，扫描电镜观察，服役前后试样的透射电镜比较和残余奥氏体测定，对经复合强韧化处理的9SiCr制钉模进行了失效分析。结果表明：断裂失效属回火脆、服股时应力诱发残余奥氏体AR转变为M加剧了这种脆性。     

金属陶鉴表面复合钢锭模制备与应用的研究

本文采用表面浸渗复合技术制备金属陶瓷表面复合钢锭模，并对复合钢锭模的制备，使用寿命，所生产的钢锭质量，失效方式，复合层的组织形态等进行研究。结果表明，本方法可在钢锭模内表面获得２～５ｍｍ厚的金属陶瓷复合层，并可明显提高钢锭模的使用寿命和钢锭表面质量。     

导卫装置的失效分析与改进

本文主要对轧钢生产线中进出口导卫装置的失效形式进行了分析，并介绍了应用复合金属进行改进的技术过程及改造后的效果。     

用RW40合金制造铝型材热挤压模试验研究

分析了熔炼电炉钢制造的铝型材热挤压模的失效原因及影响因素.试验表明,选用RW40钢结硬质合金制造热挤压模,经锻造和复合强化热处理,使用寿命是熔炼电炉钢模的10～15倍,被誉为寿星模,且型材有美观商品表面.     

热挤压钢管用挤压模失效分析

对热挤压钢管用挤压模的典型失效模式进行了全面分析。显微硬度及金相组织研究结果表明,挤压过程中润滑不良,挤压模局部金属发生奥氏体化导致挤压模强度降低是造成挤压模失效的主要原因。在此基础上,提出了优化挤压模材质和几何结构以及选择合适润滑剂来提高挤压模的使用寿命的解决方案。     

9英寸两用钢锭模的设计改进与实践

西林钢铁（集团）公司学习和运用热应力钢锭模技术，于１９９３年对９英寸钢锭模的设计进行了改进，改进结果在降低模耗，提高轧钢成材率等方面，取得了显著效果?     

9吋两用钢锭模的设计改进与实践

西林钢铁（集团）公司学习和运用热应力钢锭模设计技术，于１９９３年对９钢锭模的设计进行了改进，改进结果在降低模耗、提高轧钢成材率等方面，取得了显著效果。     

铸铁锭模失效行为的综合分析

研究了热一力循环载荷作用下铸铁的组织结构和力学性能的变化规律，以钢锭模为例，利用弹塑性有限元法获得负锭模一个使用周期中的热一力载荷谱，在热力模拟实验机上按照热－力载荷谱控制实验过程。分析了铸铁钢锭模因产生早期裂纹，龟裂而失效的机制。并对铸铁件因热疲劳而破坏的微观制进行了探讨     

NdFeB基纳米双相复合永磁材料研究进展

介绍了近年来NdFeB基纳米双相复合永磁材料的研究进展,主要从纳米复合双相材料的耦合机制和矫顽力机制等理论方面进行了总结,包括晶粒交换耦合作用、成核理论、钉扎理论、成分关系理论、自钉扎理论、晶体内部缺陷钉扎作用、脱溶相对主相晶粒钉扎作用等相关理论,然后从元素替代、掺杂元素对双相复合材料磁性能的影响进行了阐述。     

高炉铁水直接浇铸钢锭模研试

本文系统地介绍了武钢高炉铁水钢锭模的研究过程，突出了锭模解剖取样和理化性能检验等内容，并对试验和检验结果进行了分析和讨论，提出了进一步改进的措施。     

Acceleration of Electricity Reform Brings Benefit to Big Electricity Users,Aluminum Manufacturers Can Save Costs Up to Several Hundred Million

<正>Recently the National Commission of Development and Reform again assembled experts to solicit opinions,and discussed new electricity reform program.According to information disclosed by experts attending the meeting,in the future electricity reform will undergo top-down design,possibly a     

Qinghai's Aluminum Processing Capacity to Rise at the End of the Year

正Since the release of Implementation Opinions on Carrying out‘Guiding Opinions of the State Council on Resolving Serious Production Overcapacity Conflicts’,according to the actual situation of industry,Qinghai has focused on electrolytic aluminum,cement,ironsteel(including iron alloy and silicon carbide),     

Recent Trends in China's Copper Scrap Market-Part Ⅱ

<正>2.Tianjin Scrap Metal Market In Tianjin,we mainly visited Jinghai Ziy Town scrap market and Binhai New Area’some copper scrap enterprises and enterprise using copper scrap.In Ziya we felt the coppe scrap market was particularly deserted,mos copper scrap enterprises in the town wer closed,industry insiders said in 2012 the plac here was bustling with activity.According to     

Shanghai Clearing House to Roll out Renminbi-denominated Copper Clearing Operations in Free Trade Zone

正Clearing House Financial Markets Co.,Ltd.(Shanghai Clearing House)General Manager Xie Zhong told the media recently at the briefing of the international symposium of"Reform Deepening and Mechanism Innovation of the Post-crisis Kerb Market",Shanghai Clearing House will explore the feasibility of carrying out bond business in     

Development and Application of New Materials for Copper Processing in China

正After over 60 years of developmnt,a system for RD and production of copper processing materials has already taken shape in China.After the reform and opening-up,the application of copper processing materials has gradually expanded from the military industry to civil field.The annual output of copper     

China’s Mineral Exploration Market Downturn Causes Decline of Investment in Bauxite

<正>According to a survey report conducted recently by China Geological Survey Development Research Center,in the first half of 2014,China’s mineral exploration market continued to decline,with the investment in exploration of non-fuel minerals dropping by13.7%and drilling workload dropping by21.7%.According to statistical analysis of the Center,     

Fabricated Copper Production by Province or City in 2014

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Zinc Production by Province in 2014

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China's Aluminum Alloy Cable Market has Taken Shape

正Aluminum alloy cable is a mature product and technology that has been used for nearly fifty years in the U.S.Through six years’promotion,it has been widely recognized and accepted in the China market since 2013,which laid the foundation for the development of the aluminum alloy cable market.Aluminum alloy cable is widely applied in the fields of civil construction and industrial and mining enterprises,especially in real estate,steel and metallurgy.     

Qinghai to Build a 100 Billion Yuan Lithium Industry Base

正At 2014 China Qinghai Trade Fair for Green Development Investment,Qinghai EV Rally2014 was introduced for the first time.With electrical vehicles’eco-friendly features,Qinghai manifested its determination on green development.Introducing Qinghai EV Rally was just a signal.By leveraging its rich salt lake resources