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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......
Acetylene Vacuum Carburizing Hitoshi Iwata1 (1.JH CORPORATION, Aichi, Japan) 摘要:Almost 30 years has passed since the publication of materials on vacuum carburizing technology, and is attracting a great deal of attention as a technology capable of being used as a substitute for gas carburizing technology.However, the technology was not popular except in specific fields. The main reason......
Study on Carburizing Kinetics of Low-carbon Steel at High-temperature and Short-term Lu Sheng1,Xiao Nianxin2,Zhang Hailong2 (1.Department of Applied Technology, Daqing Petroleum Institute, Daqing 163318, China;2.Department of Machinery and Electron, Hebei Normal University of Science & Technology, Qinhuangdao 066004, China) Abstract:In this paper, the carburizing kinetics of low-carbon steel......
The Influence of Carburizing Parameters on Carbon Transfer Coefficient Tadeusz Sobusiak1 (1.Institute of Precision Mechanics, Warsaw, Poland) 摘要:Definition of coefficient of carbon transfer in European Standard (EN 10052) is presented as: "Mass of carbon transferred from carburizing medium into the steel, per unit surface area per second for a unit difference between the carbon potential......
Effect of Rare Earths on Diffusion Coefficient and Transfer Coefficient of Carbon during Carburizing 刘志儒1,阎牧夫1 (1.School of Materials Science and Engineering, Harbin Institute of Technology... equation. The mathematical model of the transfer coefficient of carbon was deduced based on the kinetics of weight gain during gas carburizing. The calculated results show that the main reason why the gas......
The advantages of Low Pressure Carburizing in the Heat Treatment Subcontracting Business Guy PRUNEL1,Bruno STAUDER1 (1.BODYCOTE, Chassieu, France) 摘要:Low Pressure Carburizing (LPC) was introduced in the 90''s in the western Europe Heat Treatment business,mainly for in-house applications where it was especially appreciated for carburizing of transmission parts. However the success of the LPC......
Evaluation of Process Capability in Gas Carburizing Process to Achieve Quality through Limit Design Concept K.Palaniradja1,N.Alagumurthi1,V.Soundararajan1 (1.Department of Mechanical Engineering... heat treatments that the steel can be subject to. One such treatment is Gas carburizing. This is the most widely used process for surface hardening of low carbon steels. In this method the surface......
The Influence of Method of Carburizing and Nitrocarburizing on the Microstructure and Properties of Tool Steels Natalia Kucharieva1,Jan Senatorski2,Aleksander Nakonieczny2,Tomasz Babul2..., Chl2M and Ch12FS per GOST, AMS 6437E i BS X46Cr13, all surface hardened by the Carbo process (carburizing) and by the NiCar process (nitrocarburizing). The thermo-chemical treatment was conducted......
Technology and Materials Modification, Ministry of Education,College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China;2. Beijin)Abstract:The rapid carburizing process... of carburizing layers at different glycerin concentrations and voltages were analyzed. The results show that by increasing the glycerin concentration, the saturation voltage is improved, meanwhile the thickness......
Study on Carburizing Kinetics of Low-carbon Steel at High-temperature and Short-term刘声,肖念新,张海龙摘 要:In this paper, the carburizing kinetics of low-carbon.... The results show that the carburizing rate of low-carbon steel at high-temperature and short-term is so fast, and the microstructure of carburized layer possess higher carbon content, and cementite, pearlite......