分段冷却轧辊

精确控制轧辊冷却对带材表面质量、尺寸精度、平整度和板形,都起着重要作用. 英国设菲尔德的莱契乐(Lechler)有限公司,已研制成功把轧辊辊身分为若干段,每段均由阀来精确调节喷嘴冷却剂的多段冷却系统。Modulax选择喷雾(selectospray)差分式轧辊冷却系统,可通过手动或自动对每段分别喷雾。控制室的电磁阀,能同时启动上部和下部的阀,保证上下两个轧辊得到相同冷却。     

双流体烟气喷雾系统在1000 m3高炉煤气冷却系统中的应用

马钢1000 m3高炉煤气冷却系统改造过程采用了双流体烟气喷雾系统,有效地解决了原来系统中存在的生产安全隐患,同时节约了大量的生产用水。     

Hi—VapBOF冷却系统的开发

一个以喷雾水滴汽化为基础的新型的ＢＯＦ转炉冷却系统防止了炉壳变形。除了不用更换锥体外，锥体炉衬的耐火材料喷涂业已大大减少。     

包钢白云铁矿新型电动轮冷却系统

冷却系统是电动轮矿用车非常重要的组成部分,文章旨在介绍一种新型的电动轮矿用车冷却系统。介绍了该系统的结构、原理、冷却风流向及主发电机的设计,总结了新型冷却系统的优点,为电动轮矿用车冷却系统的设计提供了一种全新设计方法。     

空压机站冷却系统设计探讨

阐述了空压机站冷却系统设计的依据和要求 ,对多种冷却系统的优劣进行了比较 ,探讨了如何设计出经济可靠 ,简便易行的冷却系统     

世界钢铁业新技术新设备集锦

双相技术比利时的冶金研究中心创制了热轧钢的热处理新工艺。如 WPC(水衬冷却)设备,可对复杂形状制品施行淬火或半退火处理。例如,在处理钢梁时,较低的碳当量即可获得给定的抗拉强变。另一称作 Trimmer的冷却系统采用喷雾法,能准确地控制宽带轧机上的卷取温度,水-空气混合法有两大优点——冷却均均而高效以及冷却范围宽。利用 Trimmer 冷却系统使生产无需添加昂贵     

不锈钢连续退火炉冷却工艺分析及系统设计

介绍了不锈钢连续退火炉冷却工艺及制度要求,阐述了连续退火炉冷却系统设计方法。该方法能够实现从产品大纲、工艺分析到机组冷却系统集成、布置、设备总体配置的设计过程,并对某热轧不锈钢退火炉冷却系统进行了计算分析,为退火炉冷却系统的设计提供了理论基础。     

锯切机列的节能技术改造

本文介绍了PLC、变频器和精密润滑冷却系统在锯切机列变频传动控制系统和锯切润滑冷却系统改造中的成功应用,着重分析了系统改造控制方案和软硬件结构的设计思想及改造后的效果,以及采用精密润滑冷却系统后所取得的经济和环境效益。     

宝钢罗泾COREX C3000冷却系统工艺特点

对宝钢罗泾COREX C3000冷却系统工艺特点进行了阐述.C3000炉体冷却系统主要由冷却壁水系统、工艺水系统和设备水系统三部分组成,是充分吸取了C2000在设计和生产方面的经验教训以及高炉的成功经验而进行设计的,重点对炉体、耐材、炉体冷却系统等方面作了大量改进.     

模块式紧凑连铸机

1.模块式的含义 该模块铸机把康卡斯特标准公司用于弧形连铸机的立流浇铸系统(Vertical-stream casting system)的优点和超低浇铸平台相结合,所有与铸坯质量和外形以及连铸机生产率有关的部件都设计在模块内,相互独立且可更换。 2.连铸机的设计 连铸机的部件包括:①结晶器/结晶器冷却;②结晶器振动机构及其驱动装置;③喷雾冷却系统;④拉矫机及其驱动装置;⑤刚性引锭杆/引锭杆收存装置;⑥水电配置系统。 以上部件紧凑地安装在一起,组成一整体,并     

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.