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公开(公告)号：US4023991A
公开(公告)日：1977-05-17
申请号：US692020
申请日：1976-06-01
申请人： Takao Kubo , Tadao Ohtani , Shigeru Kojima , Nobuyuki Kato , Kiyoshi Kojima , Yoichi Sakamoto , Isago Konno , Masaharu Tsukahara
发明人： Takao Kubo , Tadao Ohtani , Shigeru Kojima , Nobuyuki Kato , Kiyoshi Kojima , Yoichi Sakamoto , Isago Konno , Masaharu Tsukahara
摘要： An anisotropic permanent magnet of an Mn-Al-C alloy containing 68.0% to 73.0% by weight of manganese, (1/10Mn-6.6)% to (1/3Mn-22.2)% by weight of carbon, and the remainder aluminum, which alloy is rendered anisotropic by deforming it plastically at a temperature of 530.degree. to 830.degree. C.The permanent magnet has excellent mechanical characteristics and magnetic properties such that the (BH) max is above 4.8 .times. 10.sup.6 G.Oe up to about 9.2 .times. 10.sup.6 G.Oe in its bulk state.
摘要翻译： 包含68.0％至73.0％的锰，（1 / 10Mn-6.6）％至（1 / 3Mn-22.2）重量％的碳的Mn-Al-C合金的各向异性永磁体，其余为铝， 该合金通过在530℃至830℃的温度下塑化变形而呈现各向异性。
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公开(公告)号：US3944445A
公开(公告)日：1976-03-16
申请号：US513161
申请日：1974-10-08
申请人： Tadoa Ohtani , Nobuyuki Kato , Shigeru Kojima , Yoichi Sakamoto , Masaharu Tsukahara , Kiyoshi Kojima , Isago Konno , Takao Kubo
发明人： Tadoa Ohtani , Nobuyuki Kato , Shigeru Kojima , Yoichi Sakamoto , Masaharu Tsukahara , Kiyoshi Kojima , Isago Konno , Takao Kubo
摘要： A method of making isotropic Mn-Al-C alloy magnets which comprises the step of subjecting an alloy comprising 71.0% to 73.0% by weight of manganese, (1/10 Mn -- 6.6)% to (1/3 Mn -- 22.2)% by weight of carbon and the remainder aluminum to plastic deformation at a temperature of 550.degree.C to 780.degree.C.By utilizing this method, it is possible to obtain isotropic Mn-Al-C alloy magnets having excellent magnetic characteristics, i.e. (BH)max = 2.0 .times. 10.sup.6 G. Oe or more.
摘要翻译： 一种制造各向同性的Mn-Al-C合金磁体的方法，包括以下步骤：将含有71.0％至73.0％（重量）的锰，（1/10Mn-6.6）％至（1/3Mn-22.2）％的合金 的碳，其余的铝在550℃至780℃的温度下变形。
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公开(公告)号：US3976519A
公开(公告)日：1976-08-24
申请号：US491498
申请日：1974-07-23
申请人： Takao Kubo , Tadao Ohtani , Shigeru Kojima , Nobuyuki Kato , Kiyoshi Kojima , Yoichi Sakamoto , Isago Konno , Masaharu Tsukahara
发明人： Takao Kubo , Tadao Ohtani , Shigeru Kojima , Nobuyuki Kato , Kiyoshi Kojima , Yoichi Sakamoto , Isago Konno , Masaharu Tsukahara
摘要： An anisotropic permanent magnet of an Mn-Al-C alloy containing 68.0% to 73.0% by weight of manganese, (1/10 Mn-6.6)% to (1/3 Mn-22.2)% by weight of carbon, and the remainder aluminum, which alloy is rendered anisotropic by deforming it plastically at a temperature of 530.degree.C to 830.degree.C.The permanent magnet has excellent mechanical characteristics and magnetic properties such that the (BH)max is above 4.8 .times. 10.sup.6 G.Oe up to about 9.2 .times. 10.sup.6 G.Oe in its bulk state.
摘要翻译： Mn-Al-C合金的各向异性永磁体含有68.0％〜73.0％的锰，（1 / 10Mn-6.6）％〜（1/3Mn-22.2）％的碳，余量 铝，该合金在530℃至830℃的温度下塑化变形而呈现各向异性。
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公开(公告)号：US4042429A
公开(公告)日：1977-08-16
申请号：US511476
申请日：1974-10-01
申请人： Shigeru Kojima , Kiyoshi Kojima , Tadao Ohtani , Nobuyuki Kato , Yoichi Sakamoto , Isago Konno , Masaharu Tsukahara , Takao Kubo
发明人： Shigeru Kojima , Kiyoshi Kojima , Tadao Ohtani , Nobuyuki Kato , Yoichi Sakamoto , Isago Konno , Masaharu Tsukahara , Takao Kubo
摘要： Magnetic alloys consisting of 68.0.about.73.0 weight % manganese, (1/10 Mn - 6.6).about.(1/3 Mn - 22.2) weight % carbon, the balance aluminum, which show wasp-waisted magnetic hysteresis loops with the ratio of the residual magnetization 4.pi.I.sub.r to the intensity of magnetization 4.pi.I.sub.10000 in a magnetic field of 10000 Oe, I.sub.r /I.sub.10000, falling 0.0.about.0.2.
摘要翻译： 磁性合金由68.0％的重量比为73.0重量％的锰，（1/10 Mn-6.6）的差异（1/3 Mn-22.2）重量％的碳组成，余量为铝，其显示了具有余量比的黄蜂磁滞回线 磁化强度4 pi Ir到磁化强度4 pi I10000在10000 Oe，Ir / I10000的磁场中，下降0.0分差0.2。
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