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Accelerated gas Carburizing (URX gas Carburizing)

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材料热处理学报 2004年第5期25卷 378-381页

作者： Yoshikazu Shimosato Mamoru Kamitani Hiroyuki Nakatsu Chugai Ro co. Ltd. Osaka JapanChugai Ro Co. Ltd. Osaka JapanChugai Ro Co. Ltd. Osaka Japan

URX gas Carburizing is an accelerated gas Carburizing method with 50% co.+ 50% H2 gas which co.es from CFLt gas + co. gas. By using this gas co.position, the Carburizing reaction rate increases to the maximum and the co.trollability of carbon potential improves. A carbon mass flow rate is the product of the Carburizing reaction rate multiplied by the difference of carbon percent between carbon potential of the gas and the carbon co.tent of the surface of treated steel parts. We have obtained excellent results from the experimental tests at our laboratory as mentioned bellow. 1) Carburizing time can be shortened by 40% for 0.5 - 0.9 mm effective case depth. 2) Uniform Carburizing case depth 3) Less internal oxidation with the same case depth. We have already developed the new roller hearth type co.tinuous Carburizing furnace and the new URX gas generator .

关键词：气体渗碳内部氧化质量流速反应速率系数

Standardization of New Sliver Probe for co.ling Power Test of Polymer Quenchant

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材料热处理学报 2004年第5期25卷 447-452页

作者： Hideo YOKOTA Katsumi ICHITANI Kazuyoshi YAMAMOTO Hiroyuki IKUMI Yasufumi SUGIURA Michiharu NARAZAKI Nippon Oil co.poration Yokohama JapanIdemitsu Kosan Co. Ltd. Chiba JapanDaido Chemical Industry Co. Ltd. Osaka JapanSanshin Kagaku Kogyo Co. Ltd. Tokyo JapanNippon Grease Co. Ltd. Osaka JapanUtsunomiya University Utsunomiya Japan

Technical co.mittee for Japanese industrial standard of heat treating oils has studied on the new method for testing co.ling power of aqueous quenchants. This method employed the co.ling curve test of a new sliver rod probe, which has a metal-sheathed thermoco.ple at its geometrical center. The experimental study has clarified that this probe has the higher sensitivity and excellent durability. In order to standardize this probe for co.ling power test of aqueous quenchants, the repeatability and reproducibility of test results etc. have been studied. D.O.P. (Di-2-ethylthexyl Phthalate) was used as reference quenching fluid for initial calibration and for periodic calibration verification of the probe and system. In addition, 10% brine was used to check the response capability of the probe and system to the sudden change of temperature. These procedures are established acco.ding to the experimental investigation. This new test method is going to be built in the revised version of JIS K 2242 "Heat treating oils" as the co.ling power test method for aqueous quenchants.

关键词：聚合物淬火剂冷却动力试验冷却曲线银探测器

Nickel Electroplating

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材料热处理学报 2004年第05B期25卷 1122-1125页

作者： Toru Murakami Yasuo Uchikoshiki Kazutoshi Komori C.Uyemura. & co. Ltd. Osaka JapanUyemura-Solar(Shenzhen)Co.Ltd Shenzhen ChinaUyemura(Shanghai)Co.Ltd Shanghai China

Nickel electroplating has been used practically for decades, is easy to plate, but there is an unknown interest in it. Nickel electroplating as a basis of surface treatment is shown practically from basics to the applied electronics use. At first the basics of nickel electroplating, for example, purpose, use, merit & demerit, nickel plating solution, current efficiency, limiting current density, additional agents and their behaviors are surveyed. And the points of nickel deposition already practically used such as deco.ative nickel plating, satin nickel plating and functional nickel plating, which has very high throwing power and has been used for electronics, are described in detail.

关键词：镍电镀电积能力表面处理应用

Optimizing Heavy-duty Antico.rosive Performances of co.ting Films Formed by Acrylate-vinylidene Chloride co.olymer Latexes through Twice-painting Technique

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Chinese Journal of Polymer Science 2015年第1期33卷 14-22页

作者： Ce Fu Tong-xian Zhang Cheng-qi Ji Fa Cheng Wen-zhu Cui 陈宇 Department of Chemistry School of Sciences Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Jin Tian New Material co. Ltd. co.co.Kansai Paint & chemicals co. Ltd.

Twice-painting technique was adopted to prepare heavy-duty antico.rosive co.ting films formed by aqueous latexes of co.olymers of vinylidene chloride（VDC） with an acrylate, namely methyl acrylate（MA）, ethyl acrylate（EA）, butyl acrylate（BA） or 2-ethylhexyl acrylate（EHA）. Harsh salt-spray co.rosion tests demonstrated that the optimized twicepainting technique was that the acidic latex solution was adjusted to p H 5-6 for the first painting, while it was utilized directly for the seco.d painting. The test of 600 h of harsh salt-spray co.rosion showed that MA-VDC85 co.ting co.ld protect the steel excellently, whereas the other acrylate-VDC co.tings with 75%-90% VDC co.tent co.ld not protect the steel so effectively. Further co.rosion test showed that（1） MA-VDC85 co.ting protected steel from loss of metallic luster for at least 1000 h of salt-spray co.rosion;（2） adhesion of MA-VDC85 co.ting to steel was excellent for at least 800 h of saltspray co.rosion, but became very poor after 1000 h. Differential scanning calorimetry, thermogravimetric analysis, X-ray photoelectron spectrosco.y and Fourier-transform infrared spectrosco.y were used to evaluate the co.roded MA-VDC85 film.

关键词： Antico.rosion co.tings Vinylidene chloride Emulsion polymerization Acrylates.

Sodium alginate ameliorates indomethacin-induced gastrointestinal muco.al injury via inhibiting translocation in rats

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World Journal of gastroenterology 2014年第10期20卷 2641-2652页

作者： Atsuki Yamamoto Tomokazu Itoh Reishi Nasu Ryuichi Nishida Pharmaceutical research laboratories Sakai Chemical Industry Co. Ltd. Kawachinagano Osaka 586-0006 Japan KATAYAMA SEIYAKUSYO co. Ltd.Hirakata Osaka 573-1132 Japan Kaigen Pharma co. Ltd.Doshomachi Chuo-ku Osaka 541-0045 Japan

AIM: To investigate the effects of sodium alginate (AL-Na) on indomethacin-induced small intestinal lesions in rats.

关键词： Sodium alginate Non-steroidal anti-inflammatory drugs gastrointestinal muco.al injury Mucin Bacterial translocation

Effects of PBr<sub>3</sub>Addition to Polysilane Thin Films on Structures and Photovoltaic Properties

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Green and Sustainable Chemistry 2017年第1期7卷 20-34页

作者： Junya Nakagawa Takeo Oku Atsushi Suzuki Tsuyoshi Akiyama Masahiro Yamada Sakiko Fukunishi Kazufumi Kohno Department of Materials Science The University of Shiga Prefecture Hikone Japan osaka gas co. Ltd. Osaka Japan osaka gas chemicals co. Ltd. Osaka Japan

Organic thin film solar cells are potential next generation solar cells. Many p-type semico.ductors have been used in organic solar cells, but there have been far fewer reports involving n-type organic semico.ductors. Developing new n-type organic semico.ductors is therefore desirable. Polysilane thin films were spin-co.ted from solutions co.taining phosphorus (P), and the effects of P addition on film microstructures and electronic properties as n-type semico.ductors were investigated. Microstructures of poly-methyl-phenyl-silane (PMPS), dimethyl-polysilane (DMPS) and deca-phenyl-penta-silane (DPPS) thin films were investigated by X-ray diffraction and transmission electron microsco.y. PMPS thin films doped with P (PMPS(P)) were amorphous upon annealing at 300°C, while DMPS(P) and DPPS(P) thin films exhibited crystalline structures. PMPS(P) and DMPS(P) thin films exhibited decreased electrical resistances upon P doping. The energy gaps of PMPS(P), DMPS(P) and DPPS(P) were 3.5, 3.9 and 3.8 eV, respectively. Decreased photoluminescence intensities of PMPS, DMPS and DPPS were observed upon P doping. The desorption of phenyl and methyl groups from PMPS(P) thin films was observed from Raman scattering measurements. Solar cells co.taining polysilane(P)/poly[3-hexylthiophene] heterojunction structures were fabricated and exhibited photovoltaic behavior.

关键词： Microstructure Thin Film Property Polysilane Solar Cell

Preliminary Study to Identify Criterion for Quench Crack Prevention by co.puter Simulation

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材料热处理学报 2004年第5期25卷 486-493页

作者： Kyozo Arimoto Fumiaki Ikuta Takashi Horino Shigeyuki Tamura Michiharu Narazaki Yoshio Mikita Arimotech ltd. Osaka Japan Neturen Co. Ltd. Kanagawa JapanNeturen Co. Ltd. Kanagawa JapanCRC Solutions Corp. Tokyo JapanUtsunomiya University Utsunomiya JapanMIKITA Professional Engineer Office Tokushima Japan

A criterion for preventing quench cracks has not been established although much research has been co.ducted in this field. A few predictions of cracking have been recently reported using simulated results of heat treatment processes. However, these results were insufficient to predict crack generation clearly because the mechanism relates not only to stress distributions in the parts but also to material characteristics. Systematic studies by the co.bination of experiment and simulation are therefore required to reliably identify a criterion for crack prevention by co.puter simulation. As a preliminary work before starting the full-scale research, a review of quench cracking research was co.ducted and existing test methods were classified. Several test results for cylindrical specimens were simulated for co.sidering a cause of the crack generation. Lastly a tentative plan was made for the future research.

关键词：淬火裂纹热处理计算机模拟防止方法

An unusual substitution reaction of an aromatic sulfonic group based on 3-carbonyl-4-phenolsulfonic acid

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Chinese Chemical Letters 2013年第7期24卷 613-616页

作者： Yun-Ming Wang Bing-Tao Tang Wei Ma Shu-Fen Zhang De-Feng Zhao State Key Laboratory of Fine chemicals Dalian University of Technology(West Campus) Jihua Group co. Ltd.

An unusual substitution reaction of an aromatic sulfonic group based on 3-carbonyl-4-phenolsulfonic acid was disco.ered in a diazo-co.pling process. The reaction occurred under mild reaction co.ditions （pH 8.0-9.0, 0-5 ℃, solvent： water） within a short reaction time （1 h）. A plausible substitution reaction mechanism by phenol-ketone resonance was proposed.

关键词： Aromatic sulfonic groups Substitution reaction Diazo-co.pling Diazonium salt

Reaction behavior of oil sand in fluidized-bed pyrolysis

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Petroleum Science 2013年第4期10卷 562-570页

作者： Gao Jinsen Xu Tao Wang Gang Zhang Angui Xu Chunming State Key Laboratory of Heavy Oil Processing China University of Petroleum China International United Petroleum & chemicals co. Ltd.

The reaction behavior of oil sand from Inner Mongolia（China） were studied in a fluidizedbed pyrolysis process,and a co.parative study was co.ducted on the properties of the liquid products obtained through fluidized-bed pyrolysis of oil sand and the native bitumen obtained by solvent *** results indicated that the fluidized-bed pyrolysis,a feasible carbon rejection process,can be used to upgrade oil *** reaction temperature and time were found to be the key operating parameters affecting the product distribution and yields in fluidized-bed pyrolysis of oil *** optimal temperature was 490℃ and the most suitable reaction time was 5 *** these operation co.ditions,the maximum yield of liquid product was 80wt%.In addition,the pyrolysis kinetics of oil sand at different heating rates of 5,10,20 and 30℃/min was investigated using a thermogravimetric analyzer（TGA）.

关键词： Oil sand bitumen fluidized-bed pyrolysis fluidized bed thermogravimetric analyzer Kinetics