共搜索到16299条信息,每页显示10条信息,共1630页。用时:0小时0分0秒296毫秒
; Dynamic simulation on effect of flame arrangement on thermal process of regenerative reheating furnace OU Jian-ping(欧俭平)1, MA Ai-chun(马爱纯)1, ZHAN Shu-hua... the practicability of this numerical simulation system. The results indicate that the flow pattern and distribution of temperature in regenerative reheating furnace with partial same-side-switching......
Trans. Nonferrous Met. Soc. China 20(2010) s943-s947 Electro-pulse modification and reheating process for production of thixotropic microstructure in AlSi7Mg alloy TIAN Wen-tong(田文彤)1...; electro-pulse modification; reheating process 1 Introduction It has been well known that semi-solid processing has lots of significant advantages over conventional casting, such as minimizing......
Microstructure evolution of semi-solid 2024 alloy during two-step reheating process WANG Shun-cheng(王顺成), LI Yuan-yuan(李元元), CHEN Wei-ping(陈维平), ZHENG Xiao-ping(郑小平) School of Mechanical...; Abstract: A two-step reheating process was proposed......
Reheating microstructure of refined AZ91D magnesium alloy in semi-solid state JIANG Ju-fu(姜巨福), LUO Shou-jing(罗守靖) (School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China) Abstract: By means of equal channel angular extrusion (ECAE) test, upsetting test and metalloscope, reheating microstructures of raw casting ingots, materials prepared by SIMA......
伯利恒化学升温工艺B. Gadsdon1(1.达涅利康力斯)摘 要:伯利恒化学升温工艺是一种成本相对较低的在钢水罐车上升高钢水温度的方法.该工艺利用加入金属铝和吹氧的方式,形成放热反应.在喂入铝线或加入铝块的同时,通过插到钢水中消耗式氧枪,向钢水熔池内吹氧.介绍了设备组成,化学升温工艺,处理周期模型,以及具有竞争性的主要特点.关键词:化学升温; 二次精炼; 成本......
......
宝钢条钢加热炉燃烧模型计算机控制系统陈永刚1(1.上海市宝山钢铁股份有限公司宝钢分公司设备部)摘 要:介绍宝山钢铁股份有限公司新建条钢步进式加热炉燃烧控制模型的计算机控制系统.加热炉是保证加热物料的加热质量,节约燃料能耗和确保后继工序物料供给的一个重要生产工序.步进式加热炉一般多应用在热轧生产线,此次宝钢首次在条钢生产线新建大方坯步进式加热炉.文中针对条钢加热炉的特殊工艺要求,着重描述加热炉控制模型中的特殊控制部分,包括:加热制度,热跟踪模型,控制模型细分段控制,待轧控制,结合调度模型预测加热时间及模糊逻辑控制......
REHEATING TEMPERATURE CONTRAST AND MICROSTRUCTURES OF 7075 A1 ALLOY CAST BY LIQUIDUS SEMI-CONTINUOUS CASTING G.M.Lu1,J.Dong1,J.Z.Cui1 (1.The Key Lab. of Electromagnetic Processing of Material, Ministry of Education, Northeastern University,Shenyang 110004, China) Abstract:In this study, reheating of liquidus semi-continuous east billets of 7075 Al alloy wascarried out in a resistance furnace......
provided with rheocasting and extruding/extending forming by shearing-cooling-rolling(SCR) technology during reheating in semi-solid state was investigated. The microstructural differences and their generation causes for both billets were also analyzed. The results show that during reheating, the grains of rheocasting billets grow up and spheroidize gradually with the prolongation of isothermal......
Advanced control of walking-beam reheating furnaceZhigang Chen, Chao Xu, Bin Zhang, Huihe Shao, andJianmin ZhangDepartment of Automation, Shanghai Jiaotong University, 200030, ShanghaiTechnology Center, Institute of Automation, Baosteel Corporation (Group), Shanghai摘 要:<正> Reheating furnace is an important device with complex dynamic......