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    Method of producing thin metal ribbon
    1.
    发明授权
    Method of producing thin metal ribbon 失效
    薄金属带生产方法

    公开(公告)号：US4768458A

    公开(公告)日：1988-09-06

    申请号：US108621

    申请日：1987-10-15

    Applicant: Shunsuke Arakawa ,  Yoshizo Sawada

    Inventor： Shunsuke Arakawa ,  Yoshizo Sawada

    IPC: B22D11/06

    CPC classification number: B22D11/064

    Abstract: A method of manufacturing an amorphous metal sheet or ribbon which comprises extruding a molten metal from an orifice of a nozzle and directing the extruded molten metal onto a moving chill surface to rapidly cool and solidify the metal thereby forming said sheet or ribbon; said orifice being a rectangular slit defined by side walls and a front lip and a back lip arranged in front and behind the slit in the direction of movement of the chill surface below said nozzle; said chill surface moving a speed of 10 m/sec to 50 m/sec and being spaced from the front lip by a gap length of from 100 .mu.m to 600 .mu.m and the width W.sub.F of the front lip measured in the direction of movement of the chill surface being represented by the relationship W.sub.F .ltoreq.W, wherein W represent the width the slot in the nozzle.

    Abstract translation: 一种制造无定形金属片或带的方法，包括从喷嘴的孔口挤出熔融金属并将挤出的熔融金属引导到移动的冷却表面上，以快速冷却和固化金属，从而形成所述片或带; 所述孔是由侧壁限定的矩形狭缝，以及在所述喷嘴下方的所述冷却表面的运动方向上布置在所述狭缝之前和后的前唇和后唇; 所述冷却表面移动速度为10m / sec至50m / sec，并且与前唇间隔开100μm至600μm的间隙长度，并且在运动方向上测量的前唇的宽度WF 的冷却表面由关系WF

    Method of heat-treating amorphous material
    2.
    发明授权
    Method of heat-treating amorphous material 失效
    无定形材料的热处理方法

    公开(公告)号：US4525222A

    公开(公告)日：1985-06-25

    申请号：US609837

    申请日：1984-05-14

    Applicant: Takashi Meguro ,  Yasunobu Ogata ,  Yoshizo Sawada

    Inventor： Takashi Meguro ,  Yasunobu Ogata ,  Yoshizo Sawada

    IPC: C22C19/07 ,  C22C45/00 ,  C22F1/00 ,  H01F1/153 ,  H01F1/00

    CPC classification number: H01F1/15341 ,  C22C45/00

    Abstract: A method of heat-treating an amorphous material as that the amorphous material has a high magnetic permeability, is disclosed in which an amorphous material having a Curie temperature T.sub.c higher than or equal to its crystallization temperature T.sub.x is held for a short time at a temperature T satisfying relations T.gtoreq.0.95 T.sub.c and T.gtoreq.T.sub.x.

    Abstract translation: 公开了一种使非晶材料具有高导磁率的非晶材料的热处理方法，其中具有高于或等于其结晶温度Tx的居里温度Tc的非晶材料在温度下保持短时间 T满足关系T> / = 0.95 Tc和T> / = Tx。

    Amorphous alloys
    4.
    发明授权
    Amorphous alloys 失效
    无定形合金

    公开(公告)号：US4668310A

    公开(公告)日：1987-05-26

    申请号：US474886

    申请日：1983-03-14

    Applicant: Mitsuhiro Kudo ,  Shinji Takayama ,  Yoshizo Sawada ,  Yasunobu Ogata

    Inventor： Mitsuhiro Kudo ,  Shinji Takayama ,  Yoshizo Sawada ,  Yasunobu Ogata

    IPC: C22C19/00 ,  C22C19/03 ,  C22C19/05 ,  C22C19/07 ,  C22C38/00 ,  C22C45/00 ,  H01F1/153 ,  H01F1/04

    CPC classification number: H01F1/153 ,  C22C45/008

    Abstract: Amorphous alloys having high strength, high hardness, high crystallization temperature, high saturation magnetic induction, low coercive force, high magnetic permeability and particularly low deterioration of magnetic properties with lapse of time, have a composition formula ofT.sub.a X.sub.b Z.sub.c or T.sub.a' X.sub.b' Z.sub.c' M.sub.d,whereinT is at least one of Fe, Co and Ni,X is at least one of Zr, Ti, Hf and Y,Z is at least one of B, C, Si, Al, Ge, Bi, S and P,a is 70-98 atomic %,b is not more than 30 atomic %,c is not more than 15 atomic %,sum of a, b and c is 100 atomic %,M is at least one Mo, Cr, W, V, Nb, Ta, Cu, Mn, Zn, Sb, Sn, Be, Mg, Pd, Pt, Ru, Os, Rh, Ir, Ce, La, Pr, Nd, Sm, Eu, Gd, Tb and Dy,a' is 70-98 atomic %,b' is not more than 30 atomic %,c' is not more than 15 atomic %,d is not more than 20 atomic %, andsum of a', b', c' and d is 100 atomic %.

    Abstract translation: 具有高强度，高硬度，高结晶温度，高饱和磁感应，低矫顽力，高导磁率和特别是低磁通性随时间劣化的非晶合金具有TaXbZc或Ta'Xb'Zc'的组成式， Md，其中T是Fe，Co和Ni中的至少一种，X是Zr，Ti，Hf和Y中的至少一种，Z是B，C，Si，Al，Ge，Bi，S和P中的至少一种 a为70-98原子％，b为30原子％以下，c为15原子％以下，a，b和c的和为100原子％，M为至少Mo，Cr，W， V，Nb，Ta，Cu，Mn，Zn，Sb，Sn，Be，Mg，Pd，Pt，Ru，Os，Rh，Ir，Ce，La，Pr，Nd，Sm，Eu，Gd，Tb和Dy， a'是70-98原子％，b'不大于30原子％，c'不大于15原子％，d不大于20原子％，a'，b'，c'和 d为100原子％。

    Magnetic head alloy material and method of producing the same
    5.
    发明授权
    Magnetic head alloy material and method of producing the same 失效
    磁头合金材料及其制造方法

    公开(公告)号：US4581080A

    公开(公告)日：1986-04-08

    申请号：US620001

    申请日：1984-06-12

    Applicant: Takashi Meguro ,  Yoshizo Sawada ,  Yasunobu Ogata

    Inventor： Takashi Meguro ,  Yoshizo Sawada ,  Yasunobu Ogata

    IPC: C22C38/00 ,  C22C38/02 ,  G11B5/127 ,  G11B5/147 ,  G11B5/255 ,  H01F1/14 ,  C04B35/00

    CPC classification number: C22C38/02 ,  H01F1/14

    Abstract: An alloy material for magnetic head which ensures, when formed into a head, reduced distortion during writing and reduced level of noises such as sliding noise, while presenting high wear resistance.The alloy material is produced by preparing a molten alloy having a basic composition consisting essentially of Fe and 4 to 8 wt % of Si, and further containing one or more than two additive element or elements selected from a group consisting of elements belonging in periodic table to groups IIA, IVB, VB, VIB, VIIB, VIII, IB, IIB, IIIA, IVA and VA. The molten alloy is then quenched at a high cooling rate of at least 10.sup.3 .degree.C./sec to become a thin sheet having a thickness ranging between 0.02 mm and 0.3 mm. The sheet is then heat-treated in a non-oxidizing atmosphere at 600.degree. to 1200.degree. C. for 0.01 to 20 hours, so that the mean grain size of 0.2 mm or smaller can be obtained.

    Abstract translation: 一种用于磁头的合金材料，当形成头部时，其在书写过程中减少失真并降低噪音，例如滑动噪音，同时具有高耐磨性。 该合金材料是通过制备具有基本上由Fe和4至8重量％Si组成的碱性组成的熔融合金制备的，并且还含有一种或多于两种选自元素周期表中的元素的添加元素或元素 至IIA，IVB，VB，VIB，VIIB，VIII，IB，IIB，IIIA，IVA和VA组。 然后将熔融合金以至少103℃/秒的高冷却速度骤冷，成为厚度范围在0.02mm至0.3mm之间的薄片。 然后将片材在600〜1200℃的非氧化性气氛中进行0.01〜20小时的热处理，得到0.2mm以下的平均粒径。

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