1780mm热轧带钢热卷箱开尾销动作异常问题分析与控制

针对1780mm热轧带钢生产线热卷箱在使用过程中出现的开尾销动作异常问题进行了系统分析,发现开尾销动作异常受带钢材质、雾气、设备精度和工艺参数等多种因素影响。通过改善设备环境、提高关键设备精度、增加设备连锁和优化工艺参数等措施,避免了热卷箱开卷时开尾销动作异常问题。     

莱钢1500热轧带钢生产线及工艺技术浅谈

介绍了莱钢1 500热轧带钢生产线的基本状况、生产工艺流程、主要设备组成及平面布置特点,并着重介绍了采用的半连续式工艺、热送热装工艺,加热炉、热卷箱等新设备以及多级计算机控制系统等。     

热卷箱卷形优化的研究

针对承钢1780热轧带钢生产线热卷箱在使用过程中出现的成卷异常、卷形不良和开卷跑偏等异常问题进行了系统分析,并采取了技术性措施。通过提高关键设备精度、定期更换辊子和优化工艺参数等措施,较好地优化了热卷箱卷形,提升了产品质量。     

热卷箱控制系统

阐述了凌钢引进的９００ ｍ ｍ 热卷箱的设备组成和工作原理，控制系统的速度匹配、负荷平衡、尾部定位、移卷臂 Ａ Ｐ Ｃ 等控制功能。实践证明：在带钢热连轧生产中采用热卷箱技术可以减小成品带钢的头尾厚度公差，提高产品质量。     

热卷箱弯曲辊升降液压系统分析及应用

热卷箱广泛应用于热连轧带钢生产线,弯曲辊是热卷箱的关键部件之一。该文主要介绍热卷箱弯曲辊的工作过程,分析弯曲辊升降液压控制回路的工作原理和特点,为弯曲辊液压系统的设计、现场调试提供参考。     

热卷箱在唐钢1700热连轧生产线中的应用

介绍了唐钢1700热连轧生产线热卷箱的设备概况、操作过程及其控制方法、功能及应用效果。实践证明,应用热卷箱后中间坯温降由1.8℃/s减少到0.07℃/s,带钢全长可获得均匀细小的珠光体组织、力学性能废品率由2.3%下降到1.2%,综合成材率提高0.3%～0.6%。     

热卷箱自动控制系统简介

简要介绍承钢热轧带钢生产线中的热卷箱自动控制系统的配置及控制系统的功能。     

无芯轴热卷箱技术及其在不锈钢热轧生产中的应用

文中简述了热卷箱技术在热轧带钢生产中的发展历史,重点介绍了热卷箱的主要设备组成和工作原理,同时对热卷箱减少中间坯温降、恒速轧制、缩短粗轧机与精轧机之间距离、提高带钢成材率和改善产品质量等技术特点进行了论述;同时结合国内2250mm不锈钢热轧带钢轧机实际生产情况分析了新式无芯轴热卷箱在不锈钢极限规格生产、薄规格轧制稳定性、产品边部和表面质量改善等方面的积极作用。     

一种新型热卷箱弯曲辊的标定装置

热卷箱的弯曲辊在生产中需要周期性进行辊缝位置标定,以保证弯曲辊的辊缝精度。针对1780热轧带钢生产线热卷箱区域弯曲辊辊缝标定异常情况进行分析。新设计了一种结构简单、操作方便的弯曲辊标定装置,提高了标定精度和效率,同时保证了操作人员的人身安全。     

热卷箱技术及其在热带钢轧机上的应用

在热带钢轧机中采用热卷箱技术，可减少中间带坯头尾温差、降低忆机组能耗、改善产品质量和提高产量。介绍了热卷箱在凌钢的应用并阐述了热卷箱技术的特点和控制功能，以及应用效果。     

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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