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. The stoichiometric coefficients, molar masses of reactant gas, product gas and inert gas are the main factors influencing the density of gas mixture. The equilibrium constant influences the gas flow in porous media... differential pressure, the reactant gas is carried into the reaction region and the product gas is carried out of the reaction region under the condition that the gas and the solid skeleton can have gas-solid......
Trans. Nonferrous Met. Soc. China 23(2013) 1668-1673 Role of reactant concentration in size control of SnAgCu nanoparticles Wei-peng ZHANG1,2, Bing-ge ZHAO1,2, Chang-dong ZOU2, Qi-jie ZHAI2, Yu-lai... microscopy (FE-SEM), and the size distribution of the as-prepared particles was obtained from the image analysis. It was found that the particle size increased with increasing the reactant......
Gas Quenching Small Components Paul Stratton1 (1.BOC, Sheffield, UK) 摘要:Gas quenching is an environmentally friendly and effective way of quenching components. However it has not been possible to apply it to small components because of the difficulties of jigging. A method of gas quenching such small components is described in which they are levitated in a confined gas stream. The method......
Accelerated Gas Carburizing (URX Gas Carburizing) Hiroyuki Nakatsu1,Mamoru Kamitani1,Yoshikazu Shimosato1 (1.Chugai Ro Co., Ltd., Osaka, Japan) 摘要:URX gas carburizing is an accelerated gas carburizing method with 50% CO + 50% H2 gas which comes from CH4 gas + CO2 gas. By using this gas composition, the carburizing reaction rate increases to the maximum and the controllability of carbon......
to CH4. It is known that the gas conversion rate depends on its conversion time, viz., the contact time among reactant molecules. When the flow rate of coke oven gas is fixed, the velocity.... The composition of outlet gas is the integration result of the whole reactor[10]. The scheme of integral reactor is shown in Fig.5. Fig.5 Scheme of integrate reactor The original concentration of reactant......
Gas sensitivity of indium oxide HUANG Shi-zhen1, 2, LIN Wei1, 2, CHEN Wen-zhe1, 2 1. Fujian Key Laboratory of Microelectronic IC, Fuzhou University, Fuzhou 350002, China; 2. College... at low heating temperature, and the status is reversed at high heating temperature.. Key words: indium oxide; gas sensor; gas sensitivity ......
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......
J. Cent. South Univ. (2016) 23: 1015-1022 DOI: 10.1007/s11771-016-3150-9 Reduction of Panzhihua titanium-bearing oxidized pellets by CO-N2-H2 gas ZHANG Jian-liang(张建良), ZHENG Chang-le(郑常乐), TANG Yun... Berlin Heidelberg 2016 Abstract: The effect of H2 gas content on the reduction of Panzhihua titanomagnetite concentrate pellets by carbon monoxide was investigated by isothermal reduction experiment......
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... stresses.Particularly at thin-walled or complex shaped parts local plastic deformations can occur by the uneven thermal stresses. In relation to the conventional quenching procedures in aqueous media, gas......
Use of nitrogen gas in high-speed milling of Ti-6Al-4V KE Ying-lin(柯映林)1, 2, DONG Hui-yue(董辉跃)1, LIU Gang(刘 刚)1, ZHANG Ming(章 明)1 1. Zhejiang Provinvicial Key Laboratory of Advanced Manufacturing...; Abstract: To inhibit chips burning in the high-speed cutting of Ti-6Al-4V, nitrogen gas with 0.7 MPa pressure was ejected at the milling zone. The high speed flowing of nitrogen gas......
