公开(公告)号：US3989557A

公开(公告)日：1976-11-02

申请号：US593031

申请日：1975-07-03

申请人： Zenzo Henmi ,  Tatsuji Sasaki ,  Makoto Kassai ,  Masanori Okada

发明人： Zenzo Henmi ,  Tatsuji Sasaki ,  Makoto Kassai ,  Masanori Okada

IPC分类号： C22C19/07 ,  C22F1/10 ,  H01F1/04 ,  H01H1/02 ,  H01F1/00

CPC分类号： C22F1/10 ,  C22C19/07 ,  H01F1/04 ,  H01H1/0201

摘要： Semi-hard magnetic materials exhibiting an excellent square hysteresis loop are prepared by the following steps. An alloy material consisting essentially, by weight, of 73-93% Co, 1-5%Nb and the balance Fe is subjected to process annealing at not lower than 900.degree. C and cold working at a reduction of area of not less than 75% and then is subjected to any combination treatment involving one or more stress relief annealings at a temperature in the range 500.degree.-700.degree. C for a short period of time such that no intermetallic compound precipitates in said alloy followed by cooling to the ambient temperature, and one or more ageing treatments of said cooled material at a temperature in the range 600.degree.-900.degree. C for a considerably longer time such that an intermetallic compound does precipitate in said alloy.

摘要翻译： 通过以下步骤制备表现出极好的方形磁滞回线的半硬磁性材料。 基本上由73-93％Co，1-5％Nb和余量的Fe组成的合金材料进行不低于900℃的加工退火，并且以不小于75的面积进行冷加工 ％，然后在500℃-700℃的温度下进行涉及一次或多次应力消除退火的任何组合处理短时间，使得所述合金中没有金属间化合物沉淀，然后冷却至环境温度 以及所述冷却材料在600-900℃的温度下进行一个或多个老化处理相当长的时间，使得金属间化合物在所述合金中确实沉淀。

公开(公告)号：US4300958A

公开(公告)日：1981-11-17

申请号：US165990

申请日：1980-07-07

申请人： Yuichi Suzuki ,  Masanori Okada ,  Zenzo Henmi

发明人： Yuichi Suzuki ,  Masanori Okada ,  Zenzo Henmi

IPC分类号： G03B27/62 ,  B65H5/02 ,  C22C19/07 ,  F16F9/02 ,  G03G15/00 ,  G03G15/04 ,  H01F1/04 ,  H01H1/02 ,  H01F1/00

CPC分类号： H01F1/04 ,  C22C19/07 ,  H01H1/0201

摘要： Due to an Mo addition, to a known Co-Fe-Nb semi-hard magnetic material, the coercive force is enhanced without causing deterioration of the cold workability of the semi-hard magnetic material. In addition, the energy product, the residual flux density and the fullness factor are high according to the semi-hard magnetic material of the present invention. Such material is particularly suited for reed pieces of reed switches, which are mounted in a four wire crosspoint switch.

摘要翻译： 通过Mo添加，对于已知的Co-Fe-Nb半硬磁性材料，可以提高矫顽力，而不会降低半硬磁性材料的冷加工性能。 此外，根据本发明的半硬磁性材料，能量乘积，剩余磁通密度和充满度因子较高。 这种材料特别适用于安装在四线交叉点开关中的簧片开关。

公开(公告)号：US3983916A

公开(公告)日：1976-10-05

申请号：US520739

申请日：1974-11-04

申请人： Zenzo Henmi ,  Masanori Okada ,  Makoto Kassai ,  Takehiko Sato ,  Toshio Kobayashi ,  Etsuo Hanada

发明人： Zenzo Henmi ,  Masanori Okada ,  Makoto Kassai ,  Takehiko Sato ,  Toshio Kobayashi ,  Etsuo Hanada

IPC分类号： H01F1/047 ,  C22C19/07 ,  C22F1/00 ,  C22F1/10 ,  H01F1/04 ,  H01F1/00

CPC分类号： H01F1/04 ,  C22C19/07

摘要： A semi-hard magnetic material characterized by a high coercive force (Hc), i.e. 20-50 Oe, can be produced by the disclosed process.In accordance with the process, an alloy consisting of 73 to 93% Co and 3 to 7% Nb, and the balance being iron is worked into a suitable form, solution treated, cold worked at a reduction of area not lower than 75% and aged. Said alloy contains niobium in a greater amount than the known alloy for the same application in order to enhance the coercive force. With the increase in the content of niobium, however, the cold workability of the alloy deteriorates. In order to overcome this disadvantage, the Inventors provide particular conditions for the solution treatment. The solution treatment consists of heating the alloy to a temperature not lower than 1000.degree.C and cooling it to room temperature. During the cooling, quenching of the alloy should be started at 800.degree.C or higher and continued to a temperature of 500.degree.C or less.

公开(公告)号：US4047982A

公开(公告)日：1977-09-13

申请号：US703367

申请日：1976-07-08

申请人： Masato Sagawa ,  Takeaki Sakai ,  Tatsuji Sasaki ,  Zenzo Henmi

发明人： Masato Sagawa ,  Takeaki Sakai ,  Tatsuji Sasaki ,  Zenzo Henmi

IPC分类号： C22C1/04 ,  C22C19/07 ,  H01F1/053 ,  H01F1/055 ,  H01F1/02 ,  C22C23/00

CPC分类号： H01F1/0557 ,  H01F1/055

摘要： The brittle nature and magnetic properties of the rare earth cobalt magnet are improved by the simultaneous addition of Cu and V. Cu and V are included in amounts of from 0.5 to 6% by weight and from 7 to 19% by weight, respectively. The simultaneous addition enables the rear earth cobalt magnet to be cast in the form of an article. In addition, the simultaneous addition not only improves the mechanical properties of the sintered article, in which form the conventional magnet was available, but also the magnetic properties, such that, for example, the coercive force is increased when the molar ratio of cobalt with respect to rear earth elements is great.

摘要翻译： 稀土钴磁体的脆性和磁特性通过同时添加Cu和V而提高.Cu和V的含量分别为0.5至6重量％和7至19重量％。 同时添加可使后部钴钴磁体以物品的形式被铸造。 此外，同时添加不仅提高了可获得常规磁体形式的烧结制品的机械性能，而且改善了磁性能，使得例如当钴与...的摩尔比时，矫顽力增加 尊重后土元素是伟大的。

公开(公告)号：US3974000A

公开(公告)日：1976-08-10

申请号：US512311

申请日：1974-10-04

申请人： Zenzo Henmi ,  Tatsuji Sasaki ,  Masanori Okada ,  Makoto Kassai ,  Yuichi Suzuki

发明人： Zenzo Henmi ,  Tatsuji Sasaki ,  Masanori Okada ,  Makoto Kassai ,  Yuichi Suzuki

IPC分类号： C22C19/00 ,  C22C38/10 ,  C22F1/10 ,  C04B35/00

CPC分类号： C22F1/10 ,  C22C19/00 ,  C22C38/105

摘要： A semi-hard magnetic alloy is disclosed consisting essentially of 15 to 30% of Ni, 35 to 52% of Fe, 1 to 5% of Nb and the balance cobalt. This alloy possesses a coercive force (Hc) of 10 to 50 Oe, a magnetic flux density (B.sub.100) of 10 to 17.5 KG., a squareness ratio (Br/B.sub.100) of not less than 0.70 and a fullness ratio of not less than approximately 0.70. The alloy material is also characterized by a good plastic workability.

摘要翻译： 公开了一种半硬磁性合金，其基本上由15％至30％的Ni，35％至52％的Fe，1％至5％的Nb和余量的钴组成。 该合金的矫顽力（Hc）为10〜50Oe，磁通密度（B100）为10〜17.5KG，矩形比（Br / B100）为0.70以上，充满率为 约0.70。 该合金材料的特征还在于具有良好的塑性加工性能。