Magnetic recording members
    53.
    发明授权
    Magnetic recording members 失效
    磁记录部件

    公开(公告)号:US4091158A

    公开(公告)日:1978-05-23

    申请号:US676177

    申请日:1976-04-12

    摘要: A magnetic recording member comprising a non-magnetic support and two or more magnetic layers provided on the non-magnetic support and composed mainly of a ferromagnetic fine powder and a binder. The upper layer of the magnetic layers has a dry thickness of about 0.3 to about 2.5 .mu.m and the ferromagnetic fine powder contained in the upper layer is ferromagnetic iron oxide having an APP value of not more than about 1.0 and a coercive force of about 300 to about 500 Oe.

    摘要翻译: 一种磁记录元件,包括非磁性载体和设置在非磁性载体上的两个或多个磁性层,主要由铁磁性细粉末和粘合剂组成。 磁性层的上层具有约0.3至约2.5μm的干厚度,并且上层中所含的铁磁性细粉末是具有不大于约1.0的APP值和约300的矫顽力的铁磁性氧化铁 至约500 Oe。

    Apparatus for making a magnetic recording medium
    54.
    发明授权
    Apparatus for making a magnetic recording medium 失效
    用于制造磁记录介质的装置

    公开(公告)号:US4501225A

    公开(公告)日:1985-02-26

    申请号:US589701

    申请日:1984-03-15

    摘要: A magnetic metal deposition material contained in a hearth is heated and evaporated in a vacuum to form a flow of vapor, which is then ionized and converged toward a predetermined deposition surface of a flexible substrate. The flexible substrate is moved obliquely downwardly along a convex course by sliding contact with the curved surface of a fixed curved guiding body between a pair of guide rollers located at different heights above the hearth. The fixed curved guiding body communicates with a coolant source for cooling the substrate moving in contact therewith and may be provided with oscillators. Thus a thin film of the magnetic metal is deposited on the convex surface of the substrate.

    摘要翻译: 包含在炉床中的磁性金属沉积材料被加热并在真空中蒸发以形成蒸气流,然后将其蒸发并会聚到柔性基板的预定沉积表面。 通过与位于炉膛上方不同高度的一对导向辊之间的固定弯曲导向体的弯曲表面滑动接触,柔性基板沿着凸面向斜下方移动。 固定的弯曲引导体与冷却剂源连通,用于冷却与其接触移动的衬底并且可以设置有振荡器。 因此,磁性金属的薄膜沉积在基板的凸面上。

    Vacuum evaporating apparatus utilizing multiple rotatable cans
    55.
    发明授权
    Vacuum evaporating apparatus utilizing multiple rotatable cans 失效
    使用多个可旋转罐的真空蒸发装置

    公开(公告)号:US4454836A

    公开(公告)日:1984-06-19

    申请号:US498441

    申请日:1983-05-26

    摘要: An apparatus for vacuum evaporating magnetic material onto a base. Cylindrical cans are disposed parallel to one another and rotated either in the same or opposite directions. A tape-shaped base is wound around the cans passing from an upper vacuum chamber to a lower vacuum chamber. A vacuum evaporation source is positioned in the lower chamber and directed to the tape-shaped base in a predetermined area on both sides of a gap between the cans or a line contact area between the cans.

    摘要翻译: 一种将磁性材料真空蒸发到基底上的装置。 圆柱形罐彼此平行设置并沿相同或相反的方向旋转。 将带状基部缠绕在从上部真空室传递到下部真空室的罐体上。 真空蒸发源被定位在下室中并且在罐之间的间隙的两侧的预定区域或罐之间的线接触区域之间被引导到带状基部。

    Magnetic recording medium
    56.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号:US4442171A

    公开(公告)日:1984-04-10

    申请号:US356285

    申请日:1982-03-09

    摘要: A magnetic recording medium comprising a nonmagnetic flexible substrate, a magnetic layer provided on the surface of the substrate and containing ferromagnetic grains dispersed in a binder, and a back layer provided on the back surface of the substrate. The magnetic recording medium has a stiffness (S.sub.TD) of 6.0 or less. The friction coefficient (.mu..sub.B) of the back layer surface with respect to the axial direction of a loading post in a video tape recorder is controlled to satisfy the condition:0.ltoreq..mu..sub.B .ltoreq.0.1S.sub.TD -0.05so as to make the magnetic recording medium highly resistant to damage due to movement in a video tape recorder.

    摘要翻译: 一种磁记录介质,包括非磁性柔性基板,设置在基板表面上并包含分散在粘结剂中的铁磁性颗粒的磁性层,以及设置在基板的背面上的背层。 磁记录介质具有6.0或更小的刚度(STD)。 背景层表面相对于录像机中的装载柱的轴向的摩擦系数(μB)被控制为满足以下条件:0≤b≤0.1STD-0.05,以便 使得磁记录介质高度抵抗由于磁带录像机中的移动而造成的损坏。

    Calender roll for use in super calender for magnetic tapes
    58.
    发明授权
    Calender roll for use in super calender for magnetic tapes 失效
    压延辊用于超级压光机用于磁带

    公开(公告)号:US4242783A

    公开(公告)日:1981-01-06

    申请号:US923751

    申请日:1978-07-11

    CPC分类号: F16C13/00 G11B5/84

    摘要: An elastic calender roll for use in a super calender for magnetic tape is disclosed, which comprises a roll core and a roll portion which is composed of a fibrous material molded with a plastic material. The fibrous material has a better heat resistivity than that of the plastic material and the surface portion of the calender roll is of the plastic material and has a Shore hardness of at least 80 degrees.

    摘要翻译: 公开了一种用于磁带的超级压延机的弹性压延辊,其包括由芯体和由塑料材料模制的纤维材料组成的辊芯。 纤维材料具有比塑料材料更好的耐热性,并且砑光辊的表面部分是塑料材料,并且肖氏硬度至少为80度。

    Magnetic recording member
    60.
    发明授权
    Magnetic recording member 失效
    磁记录部件

    公开(公告)号:US4071654A

    公开(公告)日:1978-01-31

    申请号:US608500

    申请日:1975-08-28

    IPC分类号: G11B5/73 G11B5/70 G11B5/78

    摘要: A magnetic recording material comprising a non-magnetic flexible support having thereon a magnetic recording layer comprising a ferromagnetic powder dispersed in a binder, the surface of the non-magnetic flexible support having the magnetic recording layer thereon satisfying an S-factor expressed by the following relationship (I-1) ##EQU1## wherein S.sub.1 is the surface roughness in .mu.m of the surface of the non-magnetic flexible support having the magnetic recording layer thereon and d is the thickness in .mu.m of the magnetic recording layer, with the thickness (d) of the magnetic recording layer being about 5 .mu.m or less, and the back surface of the non-magnetic flexible support opposite that having the magnetic recording layer thereon satisfying an S-factor expressed by the following relationship (I-2) ##EQU2## wherein S.sub.2 is the surface roughness in .mu.m of the back surface of the non-magnetic support opposite that having the magnetic recording layer thereon and d is as described above.

    摘要翻译: 一种磁记录材料,包括非磁性柔性载体,其上具有分散在粘结剂中的铁磁性粉末的磁记录层,所述非磁性柔性载体的表面上具有满足下列条件的S因子 关系(I-1)(I-1)其中S1是其上具有磁记录层的非磁性柔性载体的表面的表面粗糙度,其中d是磁体的厚度 记录层,其磁记录层的厚度(d)为约5μm以下,非磁性柔性支持体的背面与上述磁记录层的背面相当,满足下述S表示的S因子 关系(I-2)(I-2)其中S2是与其上具有磁记录层的非磁性载体的背表面的表面粗糙度(μm),d为 上面有肋。