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HIGH-INTENSITY DUST CORE POWDER, HIGH-INTENSITY DUST CORE, AND ITS MANUFACTURING METHOD

机译：高强度粉尘核心粉末，高强度粉尘核心及其制造方法

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摘要

PROBLEM TO BE SOLVED: To provide mixed powders in which soft magnetic powders and binder resins are mixed uniformly, have electrical resistances where an overcurrent can be restricted between soft magnetic powder particles, and are a raw material of dust core having high mechanical intensity at normal temperatures and high temperatures, with the dust core obtained from the mixed powders, and to provide its manufacturing method.;SOLUTION: High-intensity dust core powders contain soft magnetic powders; phenolic resin fine powders, preferably phenolic resin fine powders in which the mean particle size is 30 μm or less, which has a methylol group in molecules, and in which a nondissolved part in the case of being dissolved in high excessive boiled methanol is at least 4 mass%, based on the total amount of phenolic resin; a high-intensity dust core is obtained from the dust core powders; and its manufacturing method is provided.;COPYRIGHT: (C)2002,JPO

机译：解决的问题：提供将软磁性粉末和粘结剂树脂均匀混合的混合粉末，具有可限制软磁性粉末颗粒之间的过电流的电阻，并且是通常具有高机械强度的压粉铁心的原料。温度和高温下，用混合粉末制得压粉磁芯，并提供其制造方法。;解决方案：高强度压粉磁芯粉中含有软磁粉;酚醛树脂细粉，优选酚醛树脂细粉，其中平均粒径为30μm或更小，分子中具有羟甲基，并且在溶解于高度过量沸腾的甲醇中的情况下的不溶部分为以酚醛树脂总量为基准，至少为4质量％。由压粉铁心粉得到高强度的压粉铁心。并提供了其制造方法。版权所有：（C）2002，日本特许厅

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公开/公告号JP2002280209A

专利类型
公开/公告日2002-09-27

原文格式PDF
申请/专利权人 KOBE STEEL LTD;
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申请/专利号JP20010081439
发明设计人 YURI TSUKASA;MITANI HIROYUKI;SEKI YOSHIKAZU;HOJO TAKAFUMI;FUJISAWA KAZUHISA;MURAKAMI MASAHIRO;
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申请日2001-03-21
分类号H01F1/22;H01F41/02;
国家 JP
入库时间 2022-08-22 00:57:47

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