Development of New Sliver Probe for Cooling Power Test of Polymer Quenchants
来源期刊：材料热处理学报2004年第5期
论文作者：Mamoru Tajima Youichi Watanabe Shigeru Asada Katsumi ICHITANI Michiharu NARAZAKI Mitsugu TANAKA Hideo Yokota
关键词：Quenchant; Cooling Power Test; Cooling Curve Test; Silver Probe; Polymer Quenchant;
摘 要：Working group on cooling power test of quenchants of Japanese Heat Treatment Society 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 the new silver probe has more excellent durability than the JIS silver probe employed for cooling power test of heat treating oils (JIS K 2242) and an aluminum alloy probe. Good repeatability and reproducibility of the cooling curves during polymer quenching have been confirmed. This new method is useful especially for cooling power test of aqueous quenchants used for solution heat treatment of aluminum alloys. This new silver rod probe is expected to be adopted for the revised version of JIS K 2242 as the cooling power test method for aqueous quenchants.
Mamoru Tajima1，Youichi Watanabe2，Shigeru Asada3，Katsumi ICHITANI4，Michiharu NARAZAKI5，Mitsugu TANAKA6，Hideo Yokota7
(1.Kanagawa University, Yokohama, Japan;
2.Nissan Motor Co., Ltd., Yokohama, Japan;
3.Nippon Grease Co., Ltd., Osaka, Japan;
4.Idemitsu Kosan Co., Ltd. Chiba, Japan;
5.Utsunomiya University, Utsunomiya, Japan;
6.Nissho Engineering Co., Ltd., Kobe, Japan;
7.Nippon Oil Corporation, Yokohama, Japan)
摘要:Working group on cooling power test of quenchants of Japanese Heat Treatment Society 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 the new silver probe has more excellent durability than the JIS silver probe employed for cooling power test of heat treating oils (JIS K 2242) and an aluminum alloy probe. Good repeatability and reproducibility of the cooling curves during polymer quenching have been confirmed. This new method is useful especially for cooling power test of aqueous quenchants used for solution heat treatment of aluminum alloys. This new silver rod probe is expected to be adopted for the revised version of JIS K 2242 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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