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51. 发明专利

JPS58185714A Hearth roll with superior rupture resistance 失效
标题翻译：具有超级抗破坏性的滚子
公开(公告)号：JPS58185714A
公开(公告)日：1983-10-29
申请号：JP6538682
申请日：1982-04-21
申请人： Nippon Steel Corp
发明人： URASHIMA CHIKAYUKI , NISHIDA SHINICHI , MASUMOTO KOUKI
IPC分类号： C21D1/00 , F27D3/02
CPC分类号： F27D3/026
摘要： PURPOSE:To obtain a hearth roll provided with superior rupture resistance and a prolonged endurance life by fitting a pipe roller shaft plated with Ni or coated with ceramics to the inside of a graphite sleeve. CONSTITUTION:The outer surface of a roller shaft 2 made of heat resistant steel is plated with Ni or coated with ceramics 3 to produce a carburization preventing effect, and a hearth roll is obtd. by fitting the shaft 2 to the inside of a graphite sleeve 1. Since the heat resistant steel of the shaft 3 of the hearth roll is not deprived of its strength by carburization, the roll has a prolonged endurance life and shows superior rupture strength.
摘要翻译：目的：为了获得具有优异的抗断裂性和延长耐用寿命的炉床辊，通过将镀有Ni或涂覆有陶瓷的管辊轴装配到石墨套管的内部。构成：由耐热钢制成的辊轴2的外表面镀有Ni或涂覆有陶瓷3以产生渗碳防止效果，并且可以获得炉床辊。通过将轴2装配到石墨套筒1的内部。由于炉底辊3的耐热钢不会因渗碳而被剥夺其强度，所以辊具有延长的耐久寿命并且具有优异的断裂强度。

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