Standardization of New Sliver Probe for Cooling Power Test of Polymer Quenchant
来源期刊：材料热处理学报2004年第5期
论文作者：Michiharu NARAZAKI Hiroyuki IKUMI Katsumi ICHITANI Hideo Yokota Yasufumi SUGIURA Kazuyoshi YAMAMOTO
关键词：Quenchant; Cooling Power Test; Cooling Curve Test; Silver Probe; Polymer Quenchant;
摘 要：Technical committee for Japanese industrial standard of heat treating oils has studied on the new method for testing cooling power of aqueous quenchants. This method employed the cooling curve test of a new sliver rod probe,which has a metal-sheathed thermocouple 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 cooling 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 according 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 cooling power test method for aqueous quenchants.
Michiharu NARAZAKI1，Hiroyuki IKUMI2，Katsumi ICHITANI3，Hideo Yokota4，Yasufumi SUGIURA5，Kazuyoshi YAMAMOTO6
(1.Utsunomiya University, Utsunomiya, Japan;
2.Sanshin Kagaku Kogyo Co., Ltd., Tokyo, Japan;
3.Idemitsu Kosan Co., Ltd. Chiba, Japan;
4.Nippon Oil Corporation, Yokohama, Japan;
5.Nippon Grease Co., Ltd., Osaka, Japan;
6.Daido Chemical Industry Co., Ltd., Osaka, Japan)
摘要:Technical committee for Japanese industrial standard of heat treating oils has studied on the new method for testing cooling power of aqueous quenchants. This method employed the cooling curve test of a new sliver rod probe,which has a metal-sheathed thermocouple 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 cooling 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 according 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 cooling power test method for aqueous quenchants.
关键词:Quenchant; Cooling Power Test; Cooling Curve Test; Silver Probe; Polymer Quenchant;
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