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COMPUTER-AID ANALYSIS FOR CRACKING OF 280 CONNECTING ROD OF 16V280ZJ DIESEL LOCOMOTIVE ON QUENCHING PROCESS J.S.Ye1,A.Yang2,Y.Luo2 (1.Hangzhou Iron & Steel Group Co. Technology Center, Hangzhou 310022, China;2.Ziyang Internal-Combustion Plant of Sichuang, Ziyang 641000, China) Abstract:280 connecting rod is one of the most important parts for 16V280ZJ diesel locomotive, so it needs much better......
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Refinement of Melt-Spun Quenching NdFeB Powders by Ball Milling郑精武1,姜力强1,乔梁11. College of Chemical Engineering and Materials Science, Zhejiang University of Technology摘 要:Melt-spun quenching NdFeB powders were treated through mechanical ball-milling. Their microscopic images and performance before and after the milling were observed. Microstructures......
敏感性 中图分类号:TG 249.9 文献标识码: A Quenching sensitivity of 7050 aluminium alloy hot-rolled plate ZHANG Yong1, 2, DENG Yun-lai1, 2, ZHANG Xin-ming1, 2, LIU Sheng-dan1... of Education, Changsha 410012, China) Abstract: The quenching sensitivity of 7050 aluminium alloy hot-rolled plate was studied by using end quenching test and optical microscopy (OM) and transmission......
残余应力分布(轧向) Fig. 2 Quenching residual stress distributions with various water temperatures (rolling direction) 图3 不同水温下淬火残余应力分布(横向) Fig. 3 Quenching residual stress distributions...%NaCl+5%KNO3溶液,20 ℃水,5%PAG溶液,相应的冷却能力顺序也是如此.表4所列为不同淬火介质下的应力水平及降低比例,相比于20 ℃水,5%NaCl+5%KNO3溶液下的淬火残余应力上升了10.0%左右. 表2 不同温度下应力水平及降低比例(负号代表压应力) Table 2 Quenching residual stresses (QRS......
Effect of Rapid Quenching on Electrochemical Properties of AB5 and AB3.5-Type Hydrogen Storage Alloys李平,郑雪萍,安富强,Islam S.Humail,曲选辉摘 要:Effect of rapid quenching on the electrochemical properties of AB5 and AB3.5-type hydrogen storage alloys was studied. The results indicated that the discharge capacities of the rapid quenching MmNi3.55Co0.75Mn0.4Al0.3......
中厚板辊式淬火机淬火工艺自动控制系统开发及应用袁国1,王超1,温方金2,王昭东1,龙家林1,王国栋1(1.辽宁省沈阳市东北大学轧制技术及连轧自动化国家重点实验室2.新余钢铁股份有限公司 设计院,江西新余 338001)摘 要:为满足中厚板热处理线高强度板材产品的淬火工艺开发需要,通过构建基础自动化和过程自动化两级控制系统,自主开发出中厚板辊式淬火机淬火工艺控制系统.基础自动化用于满足淬火机的顺序控制,逻辑控制及设备控制功能,工艺过程控制用于实现淬火工艺参数的模型计算及设定,实现了中厚板辊式淬火机淬火过程的自动控......
homogenized aluminum alloys were studied by end quenching test, scanning electron microscopy and transmission electron microscopy. The results show that hardness difference of the four alloys is 33... particles with larger size tend to precipitate at incoherent E phase dispersoids during slow quenching. After aging, obvious PFZ can be around the equilibrium phases, causing hardness to decrease......
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., 6-1, Daikoku-cho, Tsurumi, Yokohama, Japan) 摘要:To minimize quenching distortion and dispersion, carburizing and quenching process conditions must be optimized; this includes the parts racking design used for quenching. We investigated some factors affecting carburized quenching distortion with an experiment using a hypoid gear having a shaft and with numerical simulation methods......
