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61. 发明授权

US06558482B1 Magnetic powder and isotropic bonded magnet 失效
标题翻译：磁粉和各向同性粘结磁铁
公开(公告)号：US06558482B1
公开(公告)日：2003-05-06
申请号：US09620703
申请日：2000-07-20
申请人： Akira Arai , Hiroshi Kato
发明人： Akira Arai , Hiroshi Kato
IPC分类号： H01F1057
CPC分类号： B82Y25/00 , H01F1/0579 , H01F1/15316
摘要： Disclosed herein is a magnetic powder which can provide a magnet having a high magnetic flux density and excellent magnetizability and reliability especially excellent heat resisting property (heat stability). The magnetic powder is composed of an alloy composition represented by Rx(Fe1−yCoy)100-x-z-wBzAlw (where R is at least one kind of rare-earth element, x is 8.1-9.4 at %, y is 0-0.30, z is 4.6-6.8 at %, and w is 0.02-1.5 at %), the magnetic powder being constituted from a composite structure having a soft magnetic phase and a hard magnetic phase, wherein the magnetic powder has characteristics in which, when the magnetic powder is formed into an isotropic bonded magnet by mixing with a binding resin and then molding it, the irreversible susceptibility (Xirr) which is measured by using an intersectioning point of a demagnetization curve in the J-H diagram representing the magnetic characteristics at the room temperature and a straight line which passes the origin in the J-H diagram and has a gradient (J/H) of −3.8×10−6H/m as a starting point is less than 5.0×10−7H/m, and the intrinsic coercive force (HCJ) of the magnet at the room temperature is in the range of 406-717 kA/m.
摘要翻译：这里公开了一种磁粉，其可以提供磁通密度高的磁体和优异的磁化性和可靠性，特别是优异的耐热性（热稳定性）。磁性粉末由Rx（Fe1-yCoy）100-xz-wBzAlw（其中R是至少一种稀土元素，x为8.1-9.4at％，y为0-0.30， z为4.6〜6.8原子％，w为0.02〜1.5原子％），磁性粉末由具有软磁性相和硬磁性相的复合结构构成，其特征在于，粉末通过与粘合树脂混合然后成型而形成各向同性粘结磁体，通过使用表示室温下的磁特性的JH图中的去磁曲线的交点测量的不可逆磁化率（Xirr）和在JH图中通过原点并具有-3.8×10-6H / m的梯度（J / H）作为起始点的直线小于5.0×10-7H / m，并且固有矫顽力（HCJ）的磁体在室温下在406-717kA / m的范围内。

62. 发明授权

US06401799B1 Method of manufacturing magnet material, ribbon-shaped magnet material, magnetic powder and bonded magnet 失效
标题翻译：磁铁材料，带状磁铁材料，磁粉和粘结磁铁的制造方法
公开(公告)号：US06401799B1
公开(公告)日：2002-06-11
申请号：US09636423
申请日：2000-08-10
申请人： Akira Arai , Hiroshi Kato
发明人： Akira Arai , Hiroshi Kato
IPC分类号： B22D1106
CPC分类号： H01F1/0571 , H01F1/0578
摘要： A magnet material having excellent magnetic properties and a bonded magnet formed of the magnet material as well as a method of manufacturing the magnet material are disclosed. The method of manufacturing the magnet material is carried out by discharging a molten metal of the magnet material from a nozzle while rotating a cooling roll having a surface layer composed of ceramics on its outer periphery to be collided with the surface layer of the cooling roll and solidified by cooling, the method of manufacturing the magnet material being characterized in that the time during which the magnet material is in contact with the surface layer of the cooling roll is not less than 0.5 ms when the molten metal of said magnet material is discharged from directly above the center of rotation of the cooling roll toward an apex part of the cooling roll to be collided with the apex part.
摘要翻译：公开了一种具有优异磁性的磁体材料和由该磁体材料形成的粘结磁体以及一种制造磁体材料的方法。制造磁体材料的方法是通过从喷嘴排出磁体材料的熔融金属，同时在其外周旋转具有由陶瓷构成的表面层的冷却辊以与冷却辊的表面层相撞，通过冷却固化，制造磁体材料的方法的特征在于，当所述磁体材料的熔融金属从所述磁性材料的熔融金属排出时，磁体材料与冷却辊的表面层接触的时间不小于0.5ms 直接在冷却辊的旋转中心的上方朝向冷却辊的顶点与顶点部分碰撞。

63. 发明授权

US4365667A Heat exchanger 失效
标题翻译：热交换器
公开(公告)号：US4365667A
公开(公告)日：1982-12-28
申请号：US118723
申请日：1980-02-05
申请人： Toshio Hatada , Takao Senshu , Akira Arai , Fumio Harada , Atsushi Matsuzaki , Hajime Futawatari , Yutaka Imaizumi , Sumiyoshi Takeda
发明人： Toshio Hatada , Takao Senshu , Akira Arai , Fumio Harada , Atsushi Matsuzaki , Hajime Futawatari , Yutaka Imaizumi , Sumiyoshi Takeda
IPC分类号： F28F1/32 , F28F1/22
CPC分类号： F28F1/325 , Y10S165/503 , Y10T29/4938
摘要： In a cross finned tube heat exchanger including a multiplicity of side-by-side fin plates, and a plurality of heat transfer tubes extending through the fin plates at least in one row to provide a serpentine flow passage for a heat transfer medium which exchanges heat with another heat transfer medium flowing across the surfaces of the fin plates, a multiplicity of stepped louvers are formed on the wall of each fin plate between the adjacent heat transfer tubes of the same row. The stepped louvers each extending in a direction at right angles to the direction of air flow across the surfaces of the fin plates include at least one tilting rise wall and may differ from one another in shape depending on their positions. The stepped louvers on each fin plate may be arranged in the form of waves or uniform in height with respect to the direction in which each fin plate extends. The adjacent stepped louvers have edges varying in vertical positions.
摘要翻译：在包括多个并排翅片板的交叉翅片管式热交换器中，以及多个传热管，其至少在一排中延伸穿过翅片板，以提供用于传热的传热介质的蛇形流动通道另一个传热介质流过翅片板的表面，在同一行的相邻传热管之间的每个翅板的壁上形成多个台阶式百叶窗。每个沿与翅片的表面的空气流的方向成直角的方向延伸的台阶式百叶窗包括至少一个倾斜上升壁，并且可以根据它们的位置彼此不同。每个翅片上的台阶式百叶窗可以相对于每个翅板延伸的方向以波浪的形式或高度均匀地布置。相邻的台阶式百叶窗具有垂直位置变化的边缘。

64. 发明授权

US4300629A Cross-fin tube type heat exchanger 失效
标题翻译：横管式换热器
公开(公告)号：US4300629A
公开(公告)日：1981-11-17
申请号：US50455
申请日：1979-06-20
申请人： Toshio Hatada , Takao Senshu , Akira Arai , Fumio Harada , Atsushi Matsuzaki , Hajime Futawatari , Yutaka Imaizumi , Sumiyoshi Takeda
发明人： Toshio Hatada , Takao Senshu , Akira Arai , Fumio Harada , Atsushi Matsuzaki , Hajime Futawatari , Yutaka Imaizumi , Sumiyoshi Takeda
IPC分类号： F28F1/32 , F28F1/38
CPC分类号： F28F1/325 , F28F2250/02 , Y10S165/503
摘要： A cross-fin tube type heat exchanger having a large number of parallel fins and a plurality of heat transfer tubes extended through and fixed to the fins, so that heat may be exchanged between a first heat exchanging medium flowing through the heat transfer tubes and a second heat exchanging medium flowing along the surfaces of the fin, across the walls of the heat transfer tubes and through the fins. In the portions of each fin between adjacent heat transfer tubes of the same row, formed are a number of slits perpendicular to the direction of flow of the second heat exchanging medium. Each elongated section defined between each pair of adjacent slits is bent along its breadthwise bisector line and is raised in the form of a bridge to constitute an upwardly convexed louver element. The upwardly convexed louver element may have a cross section with an obtuse apex angle, or may have an arcuate cross section. The successive louver elements are arrayed in the direction of flow of the second heat exchanging medium in a manner of corrugation, or alternately staggered in the heightwise direction so that the edges of adjacent louver elements may be staggered in the heightwise direction. The fins having louver elements thus constructed cause a turbulency of the flow of the second heat exchanging medium to effectively prevent boundary layers of the latter from growing, thereby to ensure a higher efficiency of the heat exchange. Also increased stiffness or rigidity of the fin is obtained thanks to the provision of upwardly convexed louver elements.
摘要翻译：一种具有大量平行翅片和多个传热管的交叉翅片管型热交换器，其延伸并固定在翅片上，使得热量可以在流过传热管的第一热交换介质和第二热交换介质沿着翅片的表面流动，穿过传热管的壁并且通过翅片。在相邻行的相邻传热管之间的每个翅片的部分形成有垂直于第二热交换介质的流动方向的多个狭缝。限定在每对相邻狭缝之间的每个细长部分沿着其宽度方向的平分线弯曲并且以桥的形式被升高以构成向上凸起的百叶窗元件。向上凸起的百叶窗元件可以具有钝角顶角的横截面，或者可以具有弓形横截面。连续的百叶窗元件以波纹的方式在第二热交换介质的流动方向上排列，或者在高度方向上交错排列，使得相邻百叶窗元件的边缘可能在高度方向上交错。具有如此构造的百叶窗元件的翅片导致第二热交换介质的流动的湍流，以有效地防止后者的边界层生长，从而确保更高的热交换效率。由于提供了向上凸起的百叶窗元件，还获得了翅片的增加的刚度或刚度。

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