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1. 发明专利

JP2007297664A Reduced pressure slow-cooling apparatus and heat treatment apparatus for steel member 有权
标题翻译：减少压力的冷却装置和热处理装置
公开(公告)号：JP2007297664A
公开(公告)日：2007-11-15
申请号：JP2006125643
申请日：2006-04-28
申请人： Aisin Aw Co Ltd , Jh Corp , アイシン・エィ・ダブリュ株式会社 , 株式会社日本ヘイズ
发明人： TANIGUCHI TAKAO , SHIRAI HISAO , OBAYASHI KOJI , OKADA KAZUAKI , IWATA HITOSHI , HIRAMOTO NOBORU , SATO YASUO , TOTANI TAKESHI
IPC分类号： C21D1/773 , C21D1/06 , C21D9/32 , C21D9/40 , F27D9/00
摘要： PROBLEM TO BE SOLVED: To provide a slow-cooling apparatus which can suppress the occurrence of cooling strain in comparison with a conventional apparatus and also can exhibit high cooling efficiency in the low possibility of the occurrence of the cooling strain, and to provide a heat treatment apparatus including this excellent slow-cooling apparatus and a carburizing treatment apparatus.
SOLUTION: A reduced pressure slow-cooling apparatus is provided with: a cooling chamber 10 closable while housing a material 2 to be treated; a pressure reducing device for reducing the pressure in the cooling chamber 10; a cooling fan 11 for circulating cooling gas in the cooling chamber and can change the circulating speed of the cooling gas; heat exchangers 12, 13 for cooling the cooling gas; and blasting guides 15, 16 for changing over the circulating route of the cooling gas. This apparatus is constituted so as to switched into a rapid cooling mode for contacting the cooling gas with the heat exchangers 12, 13 and circulating the gas or a slow cooling mode for circulating the cooling gas without contacting the gas with the heat exchangers 12, 13 by operating the blasting guides 15, 16.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种与常规装置相比可以抑制冷却应变的发生的慢冷却装置，并且在冷却应变发生的可能性低的情况下也可以表现出高的冷却效率，并且提供一种包括该优良的缓慢冷却装置和渗碳处理装置的热处理装置。解决方案：减压缓慢冷却装置设置有：冷却室10，其能够容纳待处理的材料2; 用于减小冷却室10中的压力的减压装置; 冷却风扇11，用于使冷却室内的冷却气体循环，并且可以改变冷却气体的循环速度; 用于冷却冷却气体的热交换器12,13; 以及用于切换冷却气体的循环路径的喷射引导件15,16。该装置被构造成切换成用于使冷却气体与热交换器12,13接触的快速冷却模式，并使气体循环或用于使冷却气体循环的缓慢冷却模式，而不与气体与热交换器12,13接触通过操作喷砂引导件15,16。版权所有（C）2008，JPO＆INPIT

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