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公开(公告)号：EP0186373A3
公开(公告)日：1987-05-20
申请号：EP85308972
申请日：1985-12-10
发明人： Fukuda, Keiji c/o Daisan Gijutsu Kenkyusho , Suzuki, Takefumi c/o Daisan Gijutsu Kenkyusho , Kageyama, Hideaki c/o Yahata Factory , Makino, Yoshiaki c/o Yahata Factory , Hisatsune, Masanori c/o Yahata Factory , Matsubara, Eigo c/o Yahata Factory , Ishii, Mitiaki c/o Yahata Factory , Sato, Manabu c/o Yahata Factory , Koyama, Haruo c/o Yahata Factory
CPC分类号： C21D9/04 , C21D11/005
摘要： A method of heat-treating a rail for obtaining a variety of strength levels from medium value to high value. The method has the steps of: preparing a steel rail maintained at a high temperature region not lower than the austenite field. and disposing a nozzle means around the head of the rail such that the nozzle means can direct a gaseous cooling medium towards the head of the rail; determining the distance between the nozzle means and the head of the rail in accordance with both the hardness level to be attained in the head of the rail and the carbon equivalent of the steel constituting the rail; moving the nozzle means such that the distance is attained between the nozzle means and the head of the rail; and directing the gaseous cooling medium towards the head at a predetermined flow rate and for a predetermined time so as to cool the head of the rail thereby attaining the desired hardness level in the head of the rail.
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2.发明公开
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公开(公告)号：EP0161236A3
公开(公告)日：1987-05-13
申请号：EP85870064
申请日：1985-05-08
申请人： CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif , METALLURGIQUE ET MINIERE DE RODANGE-ATHUS Société Anonyme
IPC分类号： C21D09/04 , C21D01/667
CPC分类号： C21D1/667 , B21B1/085 , B21B45/0215 , C21D1/02 , C21D9/04
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4.发明公开Method and device for preventing the denting of rails in the transition area between the end and the full section of the tongue 失效方法和装置，用于防止铁路在末端和全部段之间的过渡区域中的铁路沉降
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5.发明公开
公开(公告)号：EP0136613A3
公开(公告)日：1986-08-20
申请号：EP84111040
申请日：1984-09-15
申请人： Krupp Stahl AG
IPC分类号： C21D09/04
CPC分类号： C21D9/04 , Y10S148/902
摘要： Der Erfindung betrifft eine Schiene mit hoher Verschließ festigkeit im Schienenkopf und hoher Bruchsicherheit im Schienenfuß. Kennzeichen der Erfindung ist, daß sie nach dem Walzen und einer anschließenden Wärmebehandlung im Kopf ein feinperlitisches Gefüge und im Fuß ein martensi tisches Vergütungsgefüge aufweist. Die Erfindung umfaßt ferner bevorzugte Wärmebehandlungsverfahren für die Schiene.
摘要翻译： 本发明涉及一种在头部具有高耐磨性和高耐破裂性的轨道。 本发明的特征在于，经过轧制后进行热处理，钢轨在头部具有细小的珠光体结构，在脚中具有马氏体退火晶粒结构。 本发明还包括用于轨道的优选热处理方法。
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