V.C.R采矿法大直径深孔凿岩

本文简要论述了大直径深孔潜孔凿岩外,为严格控制深孔偏斜率不超过1％,从高风压潜孔凿岩,深孔防偏措施,特别是深孔凿岩自动化等方面,就防止深孔偏斜作了详细论述。     

井下中深孔非电起爆系统的应用

阐述了井下中深孔非电起爆系统应用的形式,介绍了井下中深孔爆破施工实际情况和系统应用方案,分析了影响中深孔爆破的几个关键原因。     

提高液压凿岩设备深孔凿岩精度的途径

本文叙述了深孔凿岩精度高低对深孔凿岩爆破产生的影响和原因，指出提高液压凿岩设备深孔凿岩精度的途径。     

管线钢精炼深脱硫技术研究

通过对管线钢深脱硫剂的实验室研究,确立了石灰配加铝粉的深脱硫剂最佳配比方案;通过不同工艺路线对比分析,确立了最终管线钢生产工艺路线。结合该工艺路线对深脱硫剂的使用进行工业化验证试验,并对使用深脱硫剂后的共熔渣系流动点进行检测,确保了在正常脱硫温度下炉渣的流动性。初步实现了管线钢深脱硫后w(S)0.0010%、脱硫率大于80%的脱硫目标。     

深床过滤在连续铸轧生产中的应用

本文探讨了深床过滤在连续铸轧生产过程中应用原理,研究了深床过滤在铸轧生产过程中的优点,并总结了深床过滤在连续铸轧生产过程中存在问题的处理方法。     

改善中深孔爆破效果的措施

中深孔采矿是大中型地下矿山广泛应用的一种采矿方法,笔者对中深孔落矿存在的一些主要问题进行了分析,提出了几种改善中深孔爆破效果的途径。     

深锥沉降槽絮凝剂流程改造

为消除深锥沉降槽絮凝剂支管频繁堵管的问题,保障深锥沉降槽安全稳定运行,中国铝业山西分公司80万t氧化铝厂在保证技术指标合格的前提下,尽可能降低絮凝剂用量,确保经济运行方案的实施,近日,对深锥沉降槽絮凝剂流程进行了改造,将深锥沉降槽絮凝剂支管移至深锥槽顶。改造后,由于深锥槽顶部温度较高,     

中深孔形成切割天井的设想

叙述了中深孔采矿吊罐法形成切割天井的弊端， 阐述了用中深孔形成切割天井的方法及优缺点，以及在抚顺红透山铜矿应用的可能性。为红透山铜矿中深孔采矿方法的安全、高效使用提出了新的途径。     

影响梅钢RH—MFB深脱碳效果因素分析

根据RH真空脱碳机理,结合梅钢RH冶炼超低碳钢的生产实践,着重分析了影响RH深脱碳效果的因素,同时在RH深脱碳实践操作中也提出了相应的措施,以达到RH深脱碳效果。     

中深孔爆破技术在某矿山的实践

文章研究了非煤矿山开采中的中深孔爆破技术,首先简析了中深孔爆破的概念和常用方法,包括平面爆破、空间爆破和环形爆破。然后介绍了非煤矿山开采利用中深孔爆破技术的步骤与方法,包括孔网布置、用药量计算和起爆方式设计。最后进行了实践案例分析,并提出了改进方向,以进一步提高中深孔爆破技术在非煤矿山开采中的效果。     

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。     

Shijiazhuang will Build the World's Biggest Replacingcopper-with-aluminum Cable Production Base

正Shijiazhuang City will build the world’s biggest replacing-copper-with-aluminum cable production base,the annual output value can reach 100 billion yuan,in the future it will develop replacing-copper-with-aluminum highend industry cluster.This piece of news was learned by the reporter at the Rare Earth highiron Aluminum Alloy[Nonferrous Business Opportunity:Aluminum alloy door]Cable Conductor New Technology Application Seminar held at the provincial capital.     

Chongqing is Preparing to Set Up Nonferrous Metal Exchange,in a Bid to Become the Transit Place of Kazakhstan Copper

正Since the beginning of Chongqing’s upgrading to a municipality directly under the Central Government,Chongqing City has established direct friendly relationship with Almaty,Kazakhstan,and carried out a series of cooperation in commerce and trade,and culture     

Guangxi Baise Extends Industrial Chain to Combat Loss in Aluminum Business

正"For each tonne of aluminum being produced,the upstream enterprise on the aluminum industrial chain will suffer loss about 2000yuan."Said Liang Xiao,Deputy Director of Pingguo Industrial Park Management Committee under the Guangxi Baise City,one of the four major aluminum industry bases in China,on August 11.Extending aluminum     

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL ANNUAL CONTENTS Volume 21(2014)

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Chinalco Straightened Out Copper Assets,and Delegated Stock Equity of Yunnan Copper

正Immediately after the news that Chinalco transferred 58%stock equity of Yunnan Copper Group to its wholly-owned subsidiary China Copper Corporation Limited free of charge was disclosed on July 9,many individual investors couldn’t help but to think:Does it mean China Copper Corporation Limited will assemble assets for overall listing?At present,among main copper business companies under China Copper Corporation     

The Development and Reform Commission Encourages Private Capital to Enter Geological Prospecting Field

正At the press conference recently held by the National Development and Reform Commission under the theme"Deepen Reform in Investment AuditApproval System",when answering questions from reporters,Huang Min,Director of the Department of Fixed Assets Investment of the National Development and Reform Commission,said that in the future it would continue to intensify efforts in geological prospecting,and actively guide social capital to enter this field.     

Guangxi's first Nickel Industry Development Research Report Was Released

正Recently,Guangxi Metallurgical Research Institute,a subsidiary of Guangxi Nonferrous Metals Group,completed survey on laterite and related manufacturers in the region,by combining the current development status of laterite both at home and abroad,it compiled Guangxi’s first"Research Report on the Development of Guangxi Nickel Industrial Chain"which adopted laterite as the study subject.This report expounded on the current     

China’s Major Non-ferrous Metals Imports & Exports(End of September. 2014)

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China's Major Non-ferrous Metals Imports & Exports

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