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Design of Industrial Quenching Processes Nikolai.I.KOBASKO1,George.E.TOTTEN2 (1.Intensive Technologies Ltd, Kiev, UKRAINE;2.G.E. Totten & Associate LLC, Seattle, USA) 摘要:The method of designing... conveyor lines, with the purpose of making high-strength materials. The process is controlled by infrared technique. 关键词:intensive quenching; control of speed conveyors; databases; new methods......
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Optimising Gas Quenching Technology through Modelling of Heat Transfer Qingfei Zhang1,Aymeric Goldsteinas2,Xavier Doussot2,Florent Chaffotte3,Didier Domergue3,Linda L4 (1.Air Liquide Shanghai Co., Ltd, Shanghai, PR China;2.ECM Service, Fontaine, France;3.e;4.e)fevre(e) 摘要:Gas Quenching represents an environmentally friendly alternative to more commonly-used oil quenching. Yet,the performances......
Cold extrusion deformation behavior of medium carbon steel after quenching and tempering HU Cheng-liang(胡成亮)1, ZHAO Zhen(赵 震)1, YIN Guan-ren(尹冠人)1, YUAN Zhao-feng(袁兆峰)2, XU Xiang...; Abstract: By taking 40Cr as a specific object, cold extrusion deformation behavior of medium carbon steel after quenching and tempering was studied by experimental works. The influence......
Quenching Simulation of PM Coated Tools Christoph Broeckmann1,Axel H2,Werner Theisen3 (1.Koppern Entwicklungs-GmbH, Hattingen, Germany;2.o)fter(o;3.o) 摘要:HIP cladding is a powder metallurgical... are used. On the one hand, the transient heat conduction problem of the quenching process has to be solved. Non-linear boundary conditions and phase transformation of both, substrate and layer are considered......
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Gas Quenching during Age Hardening of the Aluminium Casting Alloy AI-7Si-0.3Mg A.Rose1,H.W.Zoch1,F.Hoffmann1,O.Kessler1 (1.Stiftung Institut fur Werkstofftechnik, Bremen, Germany) 摘要:For quenching of age hardenable aluminium alloys today predominantly aqueous quenching media are used.which can lead due to the Leidenfrost phenomenon to a non-uniform cooling of the parts and thus to thermal......
J. Cent. South Univ. (2017) 24: 81-89 DOI: 10.1007/s11771-017-3411-2 Modeling flame propagation speed and quenching distance of aluminum dust flame with spatially random distribution of particles... and the effects of various oxidizers such as carbon dioxide and oxygen on flame speed were studied. Nitrogen was considered the inert gas. In addition, the quenching distance and the minimum ignition......
Numerical Methods for Safeguarding the Performance of the Quenching Process J.GU1,G.E.Totten2,J.Bodin3,I.FELDE4,S.Segerberg3,T.RETI5,G.S.Sarmiento6 (1.Shanghai Jiao Tong University, Shanghai..., Budapest, Hungary;6.Universidad de Buenos Aires, Buenos Aires, Argentina) 摘要:A new numerical technique for testing and evaluation of quenching media and quenching systems is outlined. The measured time......
nanocomposite permanent magnets were prepared under different melt treatment conditions, i.e., the melt temperature was varied prior to ejection onto the quenching wheel. The effect of quenching temperature... uniform microstructure can be obtained directly from the melt quenched at lower temperature. With increasing initial quenching temperature, the optimal quenching speed decreases and the microstructure......
