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Research About Microstructure and Wear Resistance of Hardfacing Layer on Cast Iron LI Guo-qing1,HE Bo-lin1,YU Ying-xia1 (1.College of Mechanical & Electrical Engineering, East China Jiaotong University, Nanchang, 330013, P. R. China) 摘要:It''s simple technology to manufacture big trimming die by hardfacing on the base metal of cast iron. The chemical composition, microstructure, hardness, wear......
Transformation Behavior and Microstructure in a 40Cr2Ni2MoV Cast Steel Derek O.Northwood1,Sanjiwan.D.Bhole2,Cheng Liu2,Zhenbo Zhao1 (1.Mechanical, Automotive & Material Engineering, University of Windsor, Windsor, Ontario, Cannda;2.Department of Mechanical and Industrial Engineering, Ryerson University, Toronto, Ontario, Canada) 摘要:The transformation behavior of a 40Cr2Ni2MoV cast steel......
Effect of Cd and Sn Addition on the Microstructure and Mechanical Properties of Al-Si-Cu-Mg Cast Alloy LI Run-xia1,LI Rong-de1,HU Zhuang-qi2,YU Li3 (1.Shenyang University of Technology, Shenyang... on the microstructure and mechanical properties of Al-Si-Cu-Mg cast alloy. With the increase of Cd addition the strength of alloy rises at first and then drops. The optimal amount of Cd and Sn addition......
CAST分段进水深度脱氮性能及在线控制 马娟1, 2,彭永臻1,王淑莹1,王丽1,刘洋3,马宁平3 (1. 北京工业大学 北京市水质科学与水环境恢复重点实验室,北京,100124； 2. 兰州交通大学 环境与市政工程学院,甘肃 兰州,730070； 3. 标准水务有限公司,北京,100022) 摘 要:以生活污水为处理对象,考察循环式活性污泥法(CAST)分段进水深度脱氮在线控制工艺中有机物降解,硝化和反硝化反应过程中氧化还原电位(ORP)及pH值的变化规律,建立这些控制参数与有机物去除,硝化和反硝化反应过程中主要污染物指标间的相关关系.研究结果表明:根据ORP及pH曲线上的特征点适时地停止曝气与进水缺氧搅拌,能更加有效地控制CAST多段进水工艺,达到深度脱氮的目的,并尽可能降低运行成本；当进水COD为155.0~443.6 mg/L和-N质量浓度为57.98......
Cast shadow detection for moving objects based on binocular stereo visionPENG Qi(彭祺)1, ZHONG Si-dong(仲思东)1, TU Li-fen(屠礼芬)1(School of Electronic Information, Wuhan University, Wuhan 430072, China)Abstract:A novel cast shadow detection approach was proposed. A stereo vision system was used to capture images instead of traditional single camera. It was based on an assumption that cast shadows were......
Properties of vacuum cast CuCr25 and CuCr25Te contact material XIU Shi-xin(修士新)1, YANG Ren(杨 韧)2, XUE Jun(薛 军)3, WANG Jin-xing(汪金星)3 1. State Key Laboratory of Electrical Insulation... element has both advantages and disadvantages on main properties of CuCr contact material. Key words: Te; CuCr contact material; vacuum cast ......
Electrochemical behavior of Co-Cr and Ni-Cr dental cast alloys Viswanathan S. SAJI, Han-Cheol CHOE Department of Dental Materials, College of Dentistry, Chosun University, Gwangju 501-759, Korea...; Abstract: The cast structures influencing the electrochemical corrosion behavior of Co-Cr and Ni-Cr dental alloys were studied using potentiodynamic polarization and AC......
Study on Bond Ability of Arc-Spraying Coatings with Different Surface Pretreatment on Cast-Iron MA Yue-jin1,SHEN Yu-zeng1,HAO Jian-jun1 (1.College of Mechanical and Electrical Engineering, Hebei Agricultural University, Baoding 071001, China) 摘要:Arc spraying coatings are widely used in various applications, but uncommon in cast iron substrate. Different surface pretreatment technology......
Effects of Rare Earths on Toughness of 31Mn2SiRE Wear-Resistance Cast Steel Li Jiwen1,Wang Wenyan1,Xie Jingpei1,Li Luoli1,Wang Aiqin1 (1.School of Material Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China) Abstract:The toughness of 31Mn2SiRE wear-resistance cast steel were increased by means of RE compound modification and high temperature......
Effect of inoculating addition on machinability of gray cast iron TIAN Baohong1,MA Zhanhong1,LIU Weiming1,LI Fengjun2,REN Fengzhang1 (1.School of Materials Science and Engineering,Henan University... 471003,China) Abstract:Gray cast irons were inoculated with FeSi75+RE and FeSi75+Sr inoculants. The changes of apex angle of the drills before and af-ter being used were used to evaluate machinability......
