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2. 发明公开

EP2216418A1 INSULATION STRUCTURE OF INDUCTION HEATING COIL 有权转让
标题翻译： ISOLATIONSSTRUKTUR EINER INUDKTIONSHEIZSPULE
公开(公告)号：EP2216418A1
公开(公告)日：2010-08-11
申请号：EP08833372.9
申请日：2008-09-26
申请人： Nippon Steel Corporation
发明人： TERASHIMA, Hidetoshi , IEDA, Seiji
IPC分类号： C21D1/42 , C21D9/60 , H05B6/10 , H05B6/36
CPC分类号： H05B6/36 , C21D1/10 , C21D1/42 , C21D9/46 , C21D9/56 , C21D9/60 , D03D15/00 , D03D15/12 , D10B2101/08 , D10B2505/00 , F27D11/12 , F27D99/0006 , F27D2099/0015 , Y02P10/253
摘要： It was learned that in an insulation heating coil used for continuously heating a running steel sheet, the conventional insulated structure of the induction heating coil was selected focusing on the heat resistance and insulation ability of the insulation itself and cannot prevent a drop in insulation ability due to entry of fine metal particles (for example, zinc fumes) in the surroundings.
Therefore, an insulated structure of induction heating coil preventing the entry of zinc fumes and other fine metal particles, not falling in strength even in a high temperature environment, and able to extend the service life of the induction coil is provided.
Specifically, the surface of the induction heating coil is covered with a ceramic cloth made of alumina-silica ceramic long-fibers not containing boron and the surface of that is formed with a heat-resistant insulation layer made of a surface hardening ceramic material containing alumina or alumina-silica fine particles and alumina-silica ceramic short-fibers.
摘要翻译：据了解，在用于连续加热流动钢板的绝缘加热线圈中，将感应加热线圈的传统绝缘结构选择在绝缘本身的耐热性和绝缘能力上，并且不能防止绝缘能力下降在周围环境中进入细金属颗粒（例如锌烟）。因此，提供了感应加热线圈的绝缘结构，其防止锌烟和其他金属微粒进入，即使在高温环境下也不会降低强度，并且能够延长感应线圈的使用寿命。具体地说，感应加热线圈的表面被不含硼的氧化铝 - 二氧化硅陶瓷长纤维制成的陶瓷布覆盖，其表面形成有由含有氧化铝的表面硬化陶瓷材料制成的耐热绝缘层或氧化铝 - 二氧化硅细颗粒和氧化铝 - 二氧化硅陶瓷短纤维。

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