• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A transducer core having a magnetic core defining a non-magnetic gap and being integrally joined with a superposed composite body. The composite body has a nonmagnetic front portion spanning the nonmagnetic gap and a contiguous magnetic back portion. The superposed core and body are provided with overlapping grooves forming a window adapted to receive transducer windings.
    公开号:SU1095884A3
    申请号:SU802936505
    申请日:1980-06-16
    公开日:1984-05-30
    发明作者:Р.Гуч Беверли
    申请人:Ампекс Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    2, a method according to claim 1, characterized in that the rigid connection of the holder to one of the parallel flat surfaces of the magnetic core is produced by glass.
    3, the method according to claim 2, about tl, and that with the fact that the rigid connection of the additional magnetic bar and the non-magnetic plate is produced by glass, the melting point of which is higher than the melting temperature of the glass, which produces the rigid connection of the holder with one of the parallel flat surfaces of the magnetic core.
    4. The method according to claim 1, characterized by the fact that the thickness reduction of the magnetic core is carried out by grinding.
    The invention relates to the field of magnetic recording, in particular, to a method of manufacturing universal magnetic heads ... A method is known for producing a universal magnetic head by connecting magnetic cores through a non-magnetic strip of the working gap. The method allows the relative simplicity of the process to be made of a universal magnetic head ll. The disadvantage of this method is the difficulty of obtaining a given width of the working gap. There is also known a method for manufacturing a universal magnetic head by forming magnetic cores and working gaps by parallel cutting magnetic bars previously connected by a nonmagnetic material, forming holders, rigidly connecting the holder to one of the parallel flat surfaces of the magnetic core and passing the windings through the internal magnetic core. This method allows the relative simplicity of obtaining a predetermined width of the working gap 2. However, a decrease in the thickness of the magnetic core according to this method leads to a decrease in the strength of the universal magnetic head manufactured in accordance with it. In addition, a decrease in the thickness of the magnetic core is associated with the need to wipe the surfaces of the density of the magnetic recording. The purpose of the invention is to reduce the thickness of the magnetic core without reducing the strength of the universal magnetic head. The goal is achieved due to the fact that according to the method of manufacturing a universal magnetic head by forming magnetic cores and working gaps by parallel cutting magnetic bars previously connected by a non-magnetic material, forming holders, rigidly connecting the holder to one of the parallel flat surfaces of the core and passing windings through the inner cutout magnetic core, when forming holders, a rigid connection of an additional magnetic bar is made a and a non-magnetic plate and subsequent parallel cutting them into parts consisting of magnetic plates having vpeza and non-magnetic plates, when the holder is rigidly connected to one of the parallel flat surfaces of the magnetic core, the non-magnetic plate is placed against the working gap, and after the holder is rigidly connected from one of the parallel flat surfaces of the magnetic core, its thickness is reduced by processing from the other of its parallel flat surfaces, and the transmission in The windings through the internal recess of the magnetic core are carried out simultaneously with their passage through the recess of the magnetic plate of the holder. The rigid connection of the holder with one of the parallel flat surfaces of the magnetic core is made by glass. A rigid connection of an additional magnetic bar and a non-magnetic plate is produced by glass, the melting temperature of which is higher than the glass melting temperature, which is used to make a rigid connection of the holder to one of the parallel flat surfaces of the magnetic core. The thickness reduction of the magnetic core is carried out by lapping. FIG. Figures 1 and 2 show the formation of magnetic cores and working gaps in accordance with the proposed method of manufacturing a universal magnetic head; in fig. 3 and A formation holders; in fig. 5 reduction of the magnetic core thickness. The manufacture of a universal magnetic head according to the proposed method is as follows. Parallel cutting the magnetic bars 1 and 2, previously connected by a nonmagnetic material, such as glass, form the magnetic cores 3 and the working gaps 4. Hard connection of the additional magnetic bar 5 and nonmagnetic plate 6 and then parallel cutting them into parts consisting of magnetic plates 7, having rectangular edges 8, and of nonmagnetic plates 9, form holders 10. Then cTCKjioM rigidly connects the holder 10 to one of the parallel flat surfaces of the magnetic core 3, placing the non-magnetic plate 9 against the working gap 4. The rigid connection of the additional magnetic bar 5 and the non-magnetic plate 6 is produced by glass, the melting point of which is the melting temperature of the glass, which is rigidly connected to the holder 10 with one of the parallel flat surfaces of the magnetic core 3. After this connection, the holders 10 with one of the parallel flat the surfaces of the magnetic core 3 reduce its thickness, being processed on the side of another of its parallel flat surfaces. At the same time, the thickness reduction of the magnetic core 3 is carried out by grinding (in Fig 5, the part of the magnetic core 3 removed as a result of processing is indicated by dashed lines). Then, the winding 11 turns are passed through the triangular inner notch 12 of the magnetic core 3 by simultaneously passing them through the rectangular notch 8 of the magnetic plate 7 of the holder 10. The use of the Invention as compared with the base object allows a considerable reduction. the thickness of the magnetic core without reducing the strength of the universal magnetic head.
    权利要求:
    Claims (4)
    [1]
    1. METHOD FOR MANUFACTURING A UNIVERSAL MAGNETIC HEAD by forming magnetic cores and working clearances by parallel cutting of magnetic bars pre-connected with non-magnetic material, forming holders, _ rigidly connecting the holder to allow winding turns through an internal cut-out of the magnetic core, characterized in that, for the purpose of reducing the thickness of the magnetic core without reducing the strength of the universal magnetic head, when forming the holders produce a rigid connection additional of a magnetic bar and a non-magnetic plate and their subsequent parallel cutting into parts consisting of magnetic plates having cutouts and non-magnetic plates, when the holder is rigidly connected to one of the parallel flat surfaces of the magnetic core, the non-magnetic plate is placed against the working gap, and after hard connection the holder with one of the parallel flat surfaces of the magnetic core, reduce its thickness by processing from the other side of its parallel flat surfaces These, moreover, passing windings of the winding through the internal cutout of the magnetic core is carried out by SU 1095884
    9ut.f
    [2]
    2. The method according to π. 1, characterized in that the rigid connection of the holder with one of the parallel flat surfaces of the magnetic core is made by glass.
    [3]
    3. The method according to claim 2, characterized in that the rigid connection of the additional magnetic bar and the non-magnetic plate is made by glass, the melting temperature of which is higher than the melting temperature of the glass, by which the holder is rigidly connected to one of the parallel flat surfaces of the magnetic core.
    [4]
    4. The method of pop. 1, characterized in that the reduction in the thickness of the magnetic core is carried out by grinding.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1095884A3|1984-05-30|Method for making universal magnetic head
    US2662120A|1953-12-08|Magnetic head
    JPS6374115A|1988-04-04|Floating type magnetic head and its production
    US3187410A|1965-06-08|Method of manufacturing magnetic heads
    JPS56124111A|1981-09-29|Production of magnetic head
    JPS598120A|1984-01-17|Production of magnetic head
    SU684604A1|1979-09-05|Magnetic head manufacturing method
    GB1570010A|1980-06-25|Method of producing a magnetic core for a magnetic head
    SU607261A1|1978-05-15|Ferrite magnetic head core manufacturing method
    JPS5441122A|1979-04-02|Magnetic head core block
    SU718856A1|1980-02-29|Method of manufacturing ferrite magnetic head cores
    JPS5564625A|1980-05-15|Manufacuture of magnetic head
    JPS5587320A|1980-07-02|Manufacture of magnetic head
    SU670965A1|1979-06-30|Method of manufacturing floating magnetic head assembly
    JPS58171708A|1983-10-08|Magnetic head and its production
    JP3036020B2|2000-04-24|Manufacturing method of magnetic head
    KR940009945A|1994-05-24|Composite magnetic head and its manufacturing method
    JP2615557B2|1997-05-28|Composite magnetic head and method of manufacturing the same
    JPS59223924A|1984-12-15|Production for magnetic head of narrow track width
    JPS6050608A|1985-03-20|Magnetic head and its production
    SU718852A1|1980-02-29|Method of manufacturing magnetic ferrite core
    SU387421A1|1973-06-21|METHOD OF MANUFACTURING A MAGNETIC HEAD
    GB1083359A|1967-09-13|Improved magnetic head assembly and method for manufacturing such an assembly
    SU516095A1|1976-05-30|The method of manufacturing a block of magnetic heads
    JPS59101021A|1984-06-11|Production of magnetic head
    同族专利:
    公开号 | 公开日
    ATA690076A|1979-12-15|
    US4115827A|1978-09-19|
    FR2325140B1|1980-09-05|
    DE2642643C2|1982-12-16|
    SU1075998A3|1984-02-23|
    NL170988B|1982-08-16|
    NL7609924A|1977-03-24|
    CA1079398A|1980-06-10|
    JPS5253412A|1977-04-30|
    AT357788B|1980-07-25|
    IT1074132B|1985-04-17|
    NL170988C|1983-01-17|
    FR2325140A1|1977-04-15|
    GB1546207A|1979-05-23|
    DE2642643A1|1977-04-14|
    BE845281A|1976-12-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    NL243050A|1959-09-05|
    US3354540A|1961-04-07|1967-11-28|Philips Corp|Method of manufacturing reliable magnetic heads having accurately predetermined dimensions|
    US3303292A|1963-02-25|1967-02-07|Ampex|Magnetic head assembly|
    NL146311B|1965-04-22|1975-06-16|Philips Nv|PROCESS FOR THE MANUFACTURE OF A DOUBLE-SLOT MAGNETIC HEAD AND DOUBLE-SLOT MAGNETIC HEAD MADE IN ACCORDANCE WITH THIS PROCESS.|
    FR1500622A|1965-11-12|1967-11-03|Grundig E M V Elktro Mechanisc|Magnetic head for narrow tracks|
    US3597836A|1968-05-21|1971-08-10|Matsushita Electric Ind Co Ltd|Method of manufacturing a multichannel magnetic head|
    US3613228A|1969-07-02|1971-10-19|Ibm|Manufacture of multielement magnetic head assemblies|
    US3845550A|1972-06-23|1974-11-05|Ampex|Method of manufacturing a magnetic head|
    US3846840A|1973-08-10|1974-11-05|Ibm|Read/write and longitudinal edge erase head assembly having multiple similarly shaped layers|JPS55157122A|1979-05-24|1980-12-06|Olympus Optical Co Ltd|Magnetic head and production thereof magnetic head|
    US4325093A|1979-06-04|1982-04-13|Texas Instruments Incorporated|Magnetic head transducer having enhanced signal output and manufacturing method therefor|
    US4404608A|1980-02-04|1983-09-13|Sanyo Electric Co., Ltd.|Magnetic head with an improved inner core|
    US4475137A|1981-05-11|1984-10-02|Sanyo Electric Co., Ltd.|Magnetic transducer|
    JPH0115924B2|1981-10-08|1989-03-22|Tokyo Shibaura Electric Co|
    JPS592224A|1982-06-25|1984-01-07|Mitsubishi Electric Corp|Production of composite type magnetic head|
    US4697217A|1982-10-13|1987-09-29|Sanyo Electric Co., Ltd.|Magnetic head having a main core of sheet amorphous magnetic material|
    JPH022216B2|1982-11-08|1990-01-17|Nakamichi Corp|
    US4602307A|1983-03-11|1986-07-22|Mitsubishi Denki Kabushiki Kaisha|Compound type magnetic head|
    DE3319437C2|1983-05-28|1985-04-04|Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth|Magnetic head and process for its manufacture|
    US4755898A|1983-06-13|1988-07-05|Matsushita Electric Industrial Co., Ltd.|Amorphous magnetic head|
    DE3433750C2|1984-09-14|1987-06-11|Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig Hollaend. Stiftung & Co Kg, 8510 Fuerth, De|
    JPH0477963B2|1984-11-01|1992-12-09|Sanyo Electric Co|
    AU6032494A|1993-02-12|1994-08-29|Data Card Corporation|Magnetic stripe read/write head|
    US5617273A|1995-06-07|1997-04-01|International Business Machines Corporation|Thin film slider with protruding R/W element formed by chemical-mechanical polishing|
    US6198609B1|1998-11-09|2001-03-06|Read-Rite Corporation|CPP Magnetoresistive device with reduced edge effect and method for making same|
    US8385018B2|2009-11-03|2013-02-26|International Business Machines Corporation|Magnetic writer having multiple gaps with more uniform magnetic fields across the gaps|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/615,532|US4115827A|1975-09-22|1975-09-22|Magnetic transducer for narrow track recording and playback|
    [返回顶部]