整体干电池锌筒新型材料的研究

采用单因素试验优选法，研究了以铈为主的轻混合稀土的含量变化（含量垢重百分比为０．０．５％）对Ｚｎ－０．５％Ｐｂ合金性能的影响，并与ＸＤ２合金的性能进行了比较。试验结果表明，当混合稀土的添加量为０．０７－０．２％时，Ｚｎ－０．５％Ｐｂ－ＲＥ合金的抗拉强度与ＸＤ２合金的基本相同，冲压性能略低，但耐均匀腐蚀性能比ＸＤ２合金优越，延伸率７％，代替ＸＤ２合金作干电池的负极材料，能处长干电池的使用寿命。     

Mg-6Al-1Zn-Y镁合金组织及力学性能的研究

在Mg-6Al-1Zn合金的基础上添加不同质量分数的Y（分别为0％，0．5％，0．9％，1．4％），制备了4种实验合金，研究了Y的添加对合金组织性能的影响。通过X射线衍射、金相显微镜、扫描电镜、电子探针等手段分析了Mg-6Al-1Zn合金添加Y后组织结构的变化。研究结果表明，添加了不同含量Y的合金中都出现了一种新相Al2Y相。随着Y含量的增加，Al2Y相数量增多而Mg17Al 12相则减少。Y能细化合金铸态及挤压态显微组织，其细化作用在添加了0．9％Y的镁合金中尤为明显。铸态合金室温拉伸试验表明：该合金具有最佳的综合力学性能。当Y含量添加至1．4％时，Al2Y相变得粗大且出现团聚现象而导致了拉伸性能的下降。经过挤压后，合金的力学性能大幅度上升。     

混合稀土变质对Al—4.5%Cu合金热裂的影响

用对比的方法，研究了混合稀土变质处理对Ａｌ－４．５％Ｃｕ合金热裂倾向的影响。试验结果表明：混合稀土变质处理缩小Ａｌ－４．５％Ｃｕ合金有效结晶区间，减小合金的线收缩、净化合金、提高合金的导热率，从而有效地降低Ａｌ－４．５％Ｃｕ合金的热裂倾向，混合稀土加入量为０．２％时，裂纹的最大宽度和裂纹的总长度都出现最小值，合金的热裂倾向最小。     

耐高温、抗电弧侵蚀复合稀土钼合金及其制备方法

本发明涉及一种耐高温、抗电弧侵蚀复合稀土钼合金及其制备方法,该复合稀土氧化物掺杂钼合金材料中,Mo—Y2O3／CeO2合金所含复合稀土氧化物Y2O3／CeO2的混合物质量百分数范围为0．30％-0．55％,且CeO2的质量百分数始终为0．08％,其中三氧化二钇与二氧化铈的比例为Y2O3：CeO2=2．75～5．875：1,其余为钼金属。本发明制备的复合稀土钼合金具有很好的耐高温、抗电蚀性能,     

具有良好的焊接性能和高导电性能的高强度铝合金

乌克兰冶金技术公司研究成功的这种高强度铝合金大致成分为，％：N 0．002～1．2，H 0．002～0．5，Si 0．4～22．0，Cu 1．5～5．2，Mg 0．2～2．0，Cr 0．2～2．0，Zn 0．005～2．0．O 0．002～1．5。此外，合金中还含有B、Mn、Zn、Ni、Y、Sc、Ti、V、Mo、Nb、Ta、Fe．它们的总含量≥1％。该铝合金还加入了稀土元素，其加入量为0．05％～1．0％，氮、氢、氧的总量为0．05％～1．0％。采用感应重熔方法熔炼．在冶炼过程中通氦-氢或氩-氢气体保护。     

稀土A356合金电泳涂装膜层性能研究

研究了稀土A356合金中稀土含量对A356合金阴极电泳涂装膜层物理、化学性能的影响．结果表明：添加适量的稀土，可使合金组织细化、表面光洁度提高、易于进行磷化处理；而且生成的磷化膜致密、柔韧性及电泳涂层性能好．稀土的最佳含量为0．05％．     

稀土AlMg3W合金的研制

在研制稀土AlMg3W合金的基础上．采用金相观察、X射线衍射等手段，并通过力学性能、耐磨性能、焊接性能、热膨胀性能等对比测试，系统地分析了稀土对AlMg3W合金显微结构及物理性能的影响。结果表明，当稀土含量为0．05％时，稀土AlMg3W合金的性能最佳。     

从废旧稀土铁合金材料中回收稀土的研究

介绍了采用针铁矿沉淀除铁法回收废稀土铁合金材料中稀土的工艺，回收的稀土氧化物产品，其稀土总量大于99％，氧化铁的含量小于0．02％，稀土总收率达91％以上．研究了体系的酸度、双氧水浓度及用量、体系温度等因素对陈铁效果、产品质量、稀土收率、针铁矿过滤性能的影响．试验确定的最佳工艺条件为：针铁矿生成的pH=3～4．5，双氧水用量为理论计算量的150％～180％，温度≥40℃．     

稀土元素添加剂在泡沫铝合金制备中的应用

用稀土添加剂制取高强度稀土铝合金，相对抗拉强度σb相：1．07～1．32；延伸率δ：3．0％～7．5％；常压下添加合金增粘剂发泡剂后制得稀土泡沫合金，气孔率η：12．8％～33．5％。     

开发杨氏模数低的β钛合金

在冷加工性及强度、延性之间平衡方面优良的β-Ti合金主要用于飞机部件，近年来，其用途正在不断向民生品扩展。但是，由于β-Ti合金切削加工困难，其应用受到制约。日本大同特钢公司为进一步拓展β-Ti合金的用途，开发了利用稀土类系金属硫化物的新易切削β-Ti合金，其化学成分为：16．0％V，5．9％Cr，4．1％Al，0．32％REM（混合稀土合金），0．07％S，其余为Ti。     

熔炼次数对M17返回料合金成分、组织和性能的影响

实验结果表明,M17铸造高温合金(%:0.16C、8.79Cr、5.79A1、4.93Ti、3.29Mo、15.20Co、0.78V、0.015B、0.073Zr、0.002S、0.001P、0.001 1O、0.001 0N)经25 kg真空感应炉返回重熔后,Si含量随重熔次数的增加而略有增加,合金中主要元素和其它杂质元素S、P、H的含量变化不大,而氧、氮略有增加;合金中初生碳化物由新合金中的草书体逐渐向返回合金块状转变,初生碳化物的遗传性堵塞合金凝固时的补缩通道,使返回料合金的疏松倾向增大,高温塑性下降较大。     

China's Major Non-ferrous Metals Imports & Exports

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Zinc Production by Province in 2014

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80% of Chinese Firms Purchasing Overseas Mines Ended up in the Red

<正>Minmetals Resources acquired the world’s largest copper mine under construction for USD5.85 billion.One after another,listed companies Jien Nickle,China Molybdenum and Chihong Zinc and Germanium raised money to get involved in overseas mining projects…SOEs and private enterprises are engaged in a frenzy of overseas mine purchasing.A reporter with Economic     

Copper Processing Profit Dropped Sharply,Copper Consumption Will Face Impact in the Second Half of the Year

正Judging from China’s copper consumption field,the biggest consumption unit is electric power,which accounts for 47%of total consumption;it is followed by light industry sector,including household electrical appliance,machinery,durable goods and hardware etc,which accounts for 22%of total consumption;followed by transportation field,     

Central Geological Prospecting Fund Newly Added 16.47 Million Tonnes of Bauxite in 2013

正In 2013,the Central Geological Prospecting Fund(CGPF)Project newly discovered 15 ore fields,including 3 large above ore fields,and 5medium sized ore fields.The reporter learned from the recently published"Annual Report of Central Geological Prospecting Fund Project(2013)"that,from 2006 to 2013 the CGPF     

Manufacturers of Copper Tube for Central Air Conditioner Use Face Mounting Pressure in the Final Quarter of the Year

正This year,the investment growth rate of real estate industry continued to slow down,sold area of commercial housing also dropped significantly,which brought huge pressure to the domestic air conditioning manufactures.In the first half of the year,by relying on high growth in national financial expenditure,along with investment in public infrastructure     

Xinjiang Ranks No.1 in Production of Primary Aluminum in China

正Kang Yi,Honorary Chairman of China Nonferrous Metals Industry Association,said recently at the Forum on Development of the Non-ferrous Metals Industry in Central and Western China held in Zhengzhou that,as more and more electrolytic aluminum factories in Xinjiang came into operation,the electrolytic aluminum output of Xinjiang had reached2,275,000 tons in the first 7 months this year,     

Shenhuo Coal Industry and Electricity Power Completed800,000 t/a Aluminum Project in Xinjiang

正"Xinjiang project has been completed according to schedule,but total completion and total start of production are two different concepts,after completion it still needs a gradual process of reaching production target."On the morning of November 3,Shenhuo Coal Industry and Electricity Power told investors the above statement on the investor interaction platform.     

Guangdong Metal Transaction Center has Become the Second Largest Precious Metal Transaction Platform Nationwide

正The reporter learned from Guangdong Province Precious Metal Transaction Center that in 2013the Center maintained healthy development momentum,and had become the second largest precious metal transaction platform in China in terms of market size;currently Guangdong is quickening steps of financial innovation for the Center,aiming to build a transaction center with international core competitiveness.