JT245耐大气腐蚀塔桅结构用钢腐蚀性能研究

对JT245耐大气腐蚀塔桅结构钢进行室内加速腐蚀试验、电化学腐蚀试验、室外大气曝晒腐蚀试验及钢的表面锈层分析。试验表明：JT245耐大气腐蚀塔桅结构钢板耐大气腐蚀性能达到CortenA钢的实物水平，是理想的耐大气腐蚀材料，各项技术指标均能满足塔桅钢结构的制作要求；它已应用于港口、电网建设等工程之中，有明显的社会效益和经济效益。     

稀土对碳钢耐大气腐蚀性能影响

通过实验室加速腐蚀试验一周期浸润试验及盐雾试验，采用失重法测腐蚀率，SEM观察腐蚀产物的表面形貌和断面形貌，XRD测定腐蚀产物的物相组成，研究稀土对碳钢耐大气腐蚀性能的影响。结果表明：稀土的加入可以提高碳钢大气耐蚀性能。     

新型铸造Ni－Cu合金的成分设计及腐蚀行为的研究

本文设计了新型铸造Ｎｉ－Ｃｕ合金的化学成分，并通过多种腐蚀试验方法研究了该合金的均匀腐蚀、晶间腐蚀及点蚀行为。试验结果表明，铸造Ｎｉ－Ｃｕ合金具有良好的均匀腐蚀与局部腐蚀性能。此外，该合金还具有较好的综合机械性能与铸造性能。     

0Cr17Ni7Al钢耐腐蚀性能的研究

用不同的腐蚀试验方法，研究了０Ｃｒ１７Ｎｉ７Ａｌ钢的耐均匀腐蚀，晶间腐蚀和点腐蚀性能，试验结果表明，该钢经１０５０℃固溶处理和５２０℃时效后，具有良好的抗点腐蚀和晶间腐蚀性能。     

TA7钛合金在甲醇溶液中的应力腐蚀敏感性研究

采用慢应变速率试验，辅以扫描电镜、金相观察等分析测试技术，研究了钛合金TA7在甲醇、盐酸一甲醇溶液中的应力腐蚀敏感性。试验结果表明，钛合金TA7在甲醇中具有应力腐蚀敏感性。甲醇中加入盐酸，明显地提高了TA7的应力腐蚀敏感性。钛合金TA7在盐酸．甲醇溶液中的应力腐蚀裂纹源自点蚀孔底部。     

HR-1低倍试验浸蚀方法研究

通过对HR－1低倍检验试验方法的深入研究，找到了腐蚀试剂、腐蚀时间、腐蚀温度对该钢酸浸腐蚀的规律，选择最佳的酸浸腐蚀方案，把试样的组织特征和缺陷清晰、正确显示出来，以保证检测结果的真实性及准确性。     

Nd－Fe－B磁体的腐蚀对磁性能的影响

本文研究了在浸泡、湿热和大气腐蚀试验条件下，Ｎｄ－Ｆｅ－Ｂ磁体的腐蚀行为以及腐蚀对磁体磁性能的影响。实验结果表明，Ｎｄ－Ｆｅ－Ｂ合金在氯化钠水溶液中有很强的腐蚀活性。湿热试验和大气腐蚀后的腐蚀产物层有一定的保护作用。Ｎｄ－Ｆｅ－Ｂ磁体腐蚀后剩余磁感应强度Ｂｒ和最大磁能积（ＢＨ）ｍａｘ均降低，矫顽力的变化则与腐蚀介质有关。同时，讨论了Ｎｄ－Ｆｅ－Ｂ磁体腐蚀影响磁性能的作用机理。     

脱苯塔材质选用的研究

介绍化工分公司脱苯塔的腐蚀情况和现场挂片腐蚀试验，研究了引起挂片腐蚀的主要原因，并结合现场和挂片试验的结果，提出了合理选用脱苯塔材质的建议。     

输电铁塔用Q355BNH耐候角钢在大气环境中的腐蚀行为

通过微观组织及力学性能分析、大气腐蚀失重速率计算、表面锈层形貌观察、锈层截面电子探针元素分析等方法，对添加Ni、Cr、Cu耐候元素的输电输电铁塔用Q355BNH耐候角钢在大气环境中的腐蚀行为进行了研究，并与普通碳钢进行了对比。研究表明，两种试验钢均为珠光体+铁素体组织，并且Q355BNH试验钢组织更加均匀规整；Q355BNH试验钢抗拉强度为559 MPa,屈服强度为443 MPa,断后伸长率为31.3%,断面收缩率为74.1%,性能略高于对比试验钢；添加耐候元素后，Q355BNH在大气环境中1～2月周期下的腐蚀速率要高于对比钢，之后腐蚀速率降低，元素分析表明Q355BNH试验钢能更快地形成Cr元素富集的致密性锈层，对基体的保护作用更好，之后周期内两种试验钢的腐蚀速率均趋于稳定；Q355BNH试验钢的锈层表面形貌中裂纹、孔洞的程度较轻，平整度与致密度更高，即锈层阻碍基体进一步被侵蚀的能力更强，具有更好的耐大气腐蚀能力；Q355BNH试验钢的锈层截面更加均匀，致密性更高。     

冷轧普板锈蚀原因及对策

介绍了采用静态湿热腐蚀试验、盐水浸泡试验和盐雾腐蚀试验３种方法，研究了国内８种有代表性的防锈油的性能，对攀钢冷轧普板锈蚀的原因作了分析并提出了解决的措施。     

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.     

Seven Rare Earth Projects Involving Close to 3 Billion Yuan Investment Landed In the HighTech Zone

正On May 22,Baotou Rare Earth Industry Cooperation Consultation MeetingProject Agreement-signing Ceremony was held in Ningbo,nearly 40 enterprises from Ningbo,Guangdong,Hunan,and Shanxi participated in project consultation.After multi-lateral communication,agreements were signed for a total of 7 rare earth projects successfully.