特种冶金新技术

论述了特种冶金技术，包括真空感应脱气浇铸，冷坩埚感应悬浮熔炼等真空冶金，真空电渣重熔，电渣快速重熔，电渣复合技术等电渣冶金和等离子冶金技术的新进展，并评述了其发展方向。     

特种冶金新进展

对特种冶金，包括真空冶金（真空感应脱气浇注、冷坩埚感应悬浮熔炼、电子束连续熔炼），等离子冶金及电渣冶金（真空电渣重熔、高压电渣重熔、电渣快速重熔、电渣复合技术）的新进展进行分析，并对发展方向予以评述。     

电渣冶金技术的最新发展趋势

简要回顾了电渣重熔工业生产50年的发展历史,重点对近年来电渣冶金新技术进行了介绍和评价,包括快速电渣重熔,双极串联电渣连铸技术,特厚板坯电渣重熔,大型电渣重熔钢锭凝固偏析控制,可控气氛电渣炉和电渣液态浇铸技术。在新的发展阶段,电渣冶金技术向高效、节能、环保和满足更高质量方向发展。     

21世纪电渣冶金的展望

用于制备超纯优质金属材料的精细冶金不断地发展，近期电渣冶金的进展令人瞩目。高压电渣重熔（PESR）；真空电渣重熔（VarESR)使重熔金属质量达到高纯水平。电渣热封顶（ESHT）生产巨型钢锭具有技术与经济上的潜在优势。文中还评价了快速电渣重熔（ESRR）和电渣复合（ESCladding)等新技术。     

具有发展潜力的电渣冶金技术

为了提高铸锭质量,降低生产成本,电渣冶金涌现出许多新的技术,介绍了几种具有发展潜力的国内外电渣冶金新技术,包括弧渣重熔、洁净钢形核铸造、单极电渣快速重熔、双极电渣连铸、旋转电极重熔技术和液态金属电渣冶金技术。     

电渣重熔的发展及其趋势

简要地回顾了电渣重熔工艺在近几十年的发展与创新。对电渣重熔技术发展过程中的一些重要工艺，如快速重熔、保护气氛下的电渣重熔等进行了简单的描述。这些技术在改善传统电渣冶金工艺局限性的同时，进一步发挥了电渣重熔的优越性，使电渣重熔显示了更宽广的应用前景。并简要地讨论了电渣重熔工艺在21世纪的发展趋势。     

21世纪电渣冶金的新进展

电渣技术经过46年的发展，已形成“电渣冶金”新学科，包括电渣重熔(ESR)、电渣熔铸(ESC)、电渣转注、电渣浇注、电渣离心浇铸、电渣热封顶、电渣焊接和电渣复合等。目前世界电渣钢年生产能力120万t，用于生产低合金高强度钢、轴承钢、工模具钢、不锈耐热钢和高温合金。最大电渣锭重200t，正在设计建造360t电渣重熔炉。高压电渣重熔(PESR)和真空电渣重熔(VacESR)使重熔金属质量达到高纯水平。电渣热封顶生产的大型电渣锭成本是普通电渣锭生产成本的1／4，具有技术和经济上的潜在优势。述评了优质大型电渣锭制备，真空电渣重熔、高压电渣重熔，快速电渣重熔技术的进展和电渣重熔炉型的发展趋势。     

电渣冶金的回顾与展望

制备超纯优质金属材料的精细冶金不断地向前发展,近期电渣冶金的进展令人瞩目。高压电渣重熔（ＰＥＳＲ） ,真空电渣重熔（ＶａｒＥＳＲ） 使重熔金属质量达到高纯水平。电渣热封顶（ＥＳＨＴ） 生产巨型钢锭具有技术与经济上的潜在优势     

第一代和第二代电渣冶金技术的发展

论述了电渣冶金技术的分类,第一代和第二代电渣冶金技术的特点,电渣冶金发展历史的分期,第一代和第二代电渣冶金技术的发展,第二代电渣冶金进一步发展的方向。指出第一代电渣重熔技术是伴随电渣重熔锭大型化发展起来的,随着核电技术的迅速发展,第二代电渣重熔技术应实现大型装备优化设计、气氛可控制、重熔和凝固过程可控制,并提高计算机控制水平。     

电渣冶金的发展历程、现状及趋势

介绍了国内外电渣冶金的发展历程及国内电渣冶金的起步与发展.其中,我国研究者在电渣重熔去夹杂机理方面的研究有独到的观点,百吨级电渣炉在低氢、低铝及凝固控制方面技术领先.在总结了电渣冶金优越性及局限性的基础上提出了电渣冶金在材料领域中的发展前景.     

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.