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公开(公告)号：US4242711A
公开(公告)日：1980-12-30
申请号：US894607
申请日：1978-04-07
CPC分类号： G11B5/1475 , G11B5/147 , H01F1/22
摘要： In a metal-insulator alternate type multilayer head core usable for magnetic sound recording and reproducing, metallic component layers are connected to each other via one or more metallic interconnecting layers passing locally through insulating component layers in order to provide high effective permeability with minimized eddy current loss. In manufacturing, a metal-insulator alternate type multilayer construction including the metallic interconnecting layer or layers is subjected to sintering in order to avoid intermetal separation to be otherwise caused by cracking in the insulating layers.
摘要翻译： 在可用于磁记录和再现的金属绝缘体交替型多层头芯中，通过局部通过绝缘部件层的一个或多个金属互连层将金属部件层彼此连接，以便以最小化的涡流提供高有效磁导率 失利。 在制造中，将包含金属互连层的金属 - 绝缘体交替型多层结构进行烧结，以避免金属间分离，否则由绝缘层中的裂纹引起。
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公开(公告)号：US4383856A
公开(公告)日：1983-05-17
申请号：US94363
申请日：1979-11-15
CPC分类号： G11B5/1475 , G11B5/147 , H01F1/22
摘要： In a metal-insulator alternate type multilayer head core usable for magnetic sound recording and reproducing, metallic component layers are connected to each other via one or more metallic interconnecting layers passing locally through insulating component layers in order to provide high effective permeability with minimized eddy current loss. In manufacturing, a metal-insulator alternate type multilayer construction including the metallic interconnecting layer or layers is subjected to sintering in order to avoid intermetal separation which might be otherwise caused by cracking in the insulating layers.
摘要翻译： 在可用于磁记录和再现的金属绝缘体交替型多层头芯中，通过局部通过绝缘部件层的一个或多个金属互连层将金属部件层彼此连接，以便以最小化的涡流提供高有效磁导率 失利。 在制造中，包括金属互连层的金属 - 绝缘体交替型多层结构进行烧结，以避免由绝缘层中的裂纹引起的金属间分离。
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公开(公告)号：US4007066A
公开(公告)日：1977-02-08
申请号：US557837
申请日：1975-03-12
申请人： Kenzaburo Iijima , Tomoo Yamagishi
发明人： Kenzaburo Iijima , Tomoo Yamagishi
CPC分类号： C22C19/00 , C22C19/057 , H01F1/147 , H01F1/14708
摘要： A material having a high magnetic permeability made by a basic composition consisting of 75-82 weight percent of nickel, 2-6 weight percent of molybdenum, 1 or less weight percent of manganese, 1 or less weight percent of silicon and the remainder iron, and by an additive consisting of at least two different types of elements, one of which types of elements being an element selected from a first group of elements consisting of zirconium, vanadium, tantalum, chromium and tungsten, and the other being at least one element selected from a second group of elements consisting of titanium, zirconium, vanadium, niobium, tantalum, chromium and tungsten but different from said an element of the first group, said additive being contained in said material in an amount within the range of 1-8 weight percent. This material exhibits a high mechanical strength, and a high resistance to wear due to friction and a high magnetic permeability.
摘要翻译： 具有由75-82重量％镍，2-6重量％钼，1重量％以下的锰，1重量％以下的硅和1重量％以下的硅组成的碱性组成的高磁导率材料，其余为铁， 以及由至少两种不同类型的元素组成的添加剂，其中一种元素是选自由锆，钒，钽，铬和钨组成的第一组元素的元素，另一种是至少一种元素 选自由钛，锆，钒，铌，钽，铬和钨组成的第二组元素，但不同于所述第一组元素，所述添加剂以所述材料的形式包含在1-8的范围内 重量百分比。 该材料具有高的机械强度，并且由于摩擦而具有高的耐磨性和高的磁导率。
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公开(公告)号：US3989555A
公开(公告)日：1976-11-02
申请号：US588891
申请日：1975-06-20
申请人： Tomoo Yamagishi
发明人： Tomoo Yamagishi
CPC分类号： C22C19/03 , H01F1/14708
摘要： A material having a high magnetic permeability made by a base composition consisting essentially of, by weight, 75-82 percent of nickel and 5-24 percent of iron, with or without 2-6 percent of molybdenum, 1 or less percent of manganese, 1 or less percent of silicon, and by an additive mixture consisting of at least two different types of elements, one of which types of elements being at least one element selected from the group of elements consisting of titanium, zirconium, vanadium, niobium, chromium and tungsten, and the other being aluminum, said additive being contained in said base composition in an amount that the total content of said at least two different types of elements falls within the range of 1-8 percent of the whole weight of said material. This material exhibits a high mechanical strength, and toughness, a high resistance to wear from friction and a high magnetic permeability.
摘要翻译： 一种具有高磁导率的材料，其基本组成基本上由75-82％的镍和5-24％的铁组成，有或没有2-6％的钼，1％或更少的锰， 1％或更少的硅，以及由至少两种不同类型的元素组成的添加剂混合物，其中一种元素是选自钛，锆，钒，铌，铬的元素组中的至少一种元素 和钨，另一种是铝，所述添加剂以所述至少两种不同类型元素的总含量落入所述材料的整体重量的1-8％的量包含在所述基础组合物中。 该材料具有高的机械强度和韧性，耐摩擦磨损和高磁导率。
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公开(公告)号：US3972745A
公开(公告)日：1976-08-03
申请号：US555303
申请日：1975-03-04
申请人： Tomoo Yamagishi
发明人： Tomoo Yamagishi
CPC分类号： C22C19/007 , H01F1/14708
摘要： By the inclusion, by weight, of 1-5% of aluminium, as the essential additive, in a 78 permalloy (an Fe-Ni alloy) having a basic composition comprising the two essential elements, i.e. 75-82% of nickel and 5-24% of iron, the hardness of this alloy is improved without deteriorating the magnetic characteristic including magnetic permeability of the alloy. Furthermore, molybdenum, copper, chromium, and niobium may be added together with the aluminum in a suitable combination and amount to enhance both the hardness and characteristic of the alloy, facilitating the heat treatment during the manufacture of the material of this invention. This improved material or alloy is obtained in a relatively simple procedure and is of a good workability and is suitable for use as the material of head cores of magnetic recording apparatuses.
摘要翻译： 通过将1-5重量％的铝作为必需添加剂，包含在具有包括两个必需元素的碱性组成的78坡莫合金（Fe-Ni合金）中，即75-82％的镍和5 -24％的铁，该合金的硬度得到改善，而不损害包括合金的磁导率的磁特性。 此外，钼，铜，铬和铌可以以合适的组合与铝一起加入，并且用于提高合金的硬度和特性，有利于在本发明的材料的制造过程中的热处理。 这种改进的材料或合金是以相对简单的方法获得并且具有良好的可加工性，并且适合用作磁记录装置的磁头芯的材料。
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