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蠕墨铸铁在焦炉护炉铁件设计中的应用 总被引:1,自引:0,他引:1
蠕墨铸铁具有较高的机械性能和良好的抗热疲劳、耐磨损、耐热腐蚀的性能。采用蠕墨铸铁代替灰铸铁作护炉铁件材料 ,经对炉门、炉框、大保护板强度进行核算 ,证明蠕墨铸铁适合于护炉铁件 ,并具有可观的经济效益 相似文献
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山东省机械设计研究院与莱芜钢厂协作进行了蠕墨铸铁钢锭模的研制工作。蠕墨铸铁用该厂冲天炉熔炼,采用稀土锌铝镁合金作蠕化剂,所生产的锭模在炼钢车间四个锭盘上与灰铁锭模作了对比,浇注钢种大部份为合金结构钢、滚珠钢、其余为碳 相似文献
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本文综述了近几年来稀土合金在灰铸铁、蠕墨铸铁、球墨铸铁、可锻铸铁以及特种性能铸铁(耐磨、耐热和耐腐蚀铸铁)中的应用情况以及作者等人的少量工作。稀土合金在各种铸铁中的应用是以球化剂、蠕化剂、孕育剂(或称变质剂)等形式出现的,它们对改善和提高铸铁组织与性能起了良好的作用,但针对不同生产条件,需要研究最佳加入量和最合适的加入方法。文中还结合稀土应用的效果,阐明了稀土具有纯化精炼、改变石墨形状、中和干扰元素以及减少白口倾向、填加石墨化程度和细化共晶团等作用。从而,提出了今后应在采用现代实验手段,进一步研究稀土元素的性能和作用,并有效加以利用的基础上,开拓稀土在铸铁生产中更为广泛的应用前景。 相似文献
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清华大学机械系副教授根据长期从事稀土铸铁理论研究与生产应用所积累的大量资料,特别是“六五”“七五”期间承担国家科技攻关项目所取得的成果,于1993年初完成专著——《稀土铸铁》。稀土铸铁是指含有稀土元素的球墨铸铁,蠕墨铸铁,灰口铸铁及其它的铸铁材料。 相似文献
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简要介绍选用蠕墨铸铁作为铸铁模材质的原因、试制的工艺措施及装机服役情况,并分析了蠕墨铸铁模的使用寿命与其材质中的石墨形态的关系,指出蠕墨铸铁模的使用寿命主要取决于其本身的蠕化率。 相似文献
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<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 相似文献
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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, 相似文献
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《China Nonferrous Metals Monthly》2014,(10)
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 相似文献
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《China Nonferrous Metals Monthly》2014,(10)
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 相似文献
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《China Nonferrous Metals Monthly》2014,(10)
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, 相似文献
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《China Nonferrous Metals Monthly》2014,(12)
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. 相似文献
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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. 相似文献
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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. 相似文献