公开(公告)号：US3639701A

公开(公告)日：1972-02-01

申请号：US3639701D

申请日：1970-07-02

Applicant: IBM

Inventor： SECRIST DUANE R ,  TURK HAROLD L

IPC: G11B5/133 ,  G11B5/235 ,  G11B5/14 ,  G11B5/42

CPC classification number: G11B5/133 ,  G11B5/235 ,  Y10T29/49057

Abstract: A magnetic head assembly is claimed. The magnetic head assembly comprises a pair of magnetic ferrites having mating surfaces and a transducing gap comprising a nonmagnetic crystalline ceramic, which may particularly be a nonmagnetic ferrite, formed as a bond between the mating surfaces. More particularly, the bond is formed by solid-state diffusion.

Abstract translation: 要求保护磁头组件。 磁头组件包括具有配合表面的一对磁性铁氧体和包含非磁性结晶陶瓷的换能间隙，该非磁性结晶陶瓷可以特别地形成为在配合表面之间的结合的非磁性铁氧体。 更具体地说，该键由固态扩散形成。

公开(公告)号：US3613228A

公开(公告)日：1971-10-19

申请号：US3613228D

申请日：1969-07-02

Applicant: IBM

Inventor： COOK MILES H ,  SECRIST DUANE R ,  TURK HAROLD L

IPC: G11B5/31 ,  G11B5/133 ,  G11B5/17 ,  G11B5/187 ,  G11B5/29 ,  H01F7/06

CPC classification number: G11B5/133 ,  G11B5/17 ,  G11B5/1871 ,  G11B5/29 ,  Y10T29/49048 ,  Y10T29/49055 ,  Y10T29/4906 ,  Y10T29/49787 ,  Y10T156/1069 ,  Y10T156/1075

Abstract: IN THE PROCESS OF BATCH FABRICATION OF MULTIGAP MAGNETIC HEAD ASSEMBLIES, SUCH AS USED IN FIXED HEAD STORAGE FILES, A NONMAGNETIC SUPPORT STRUCTURE IS BONDED TO A MAGNETIC FERRITE BODY TO FACILITATE GRINDING AND POLISHING OF THE FERRITE TO DESIRED DIMENSIONS, WHICH REPRESENT TRACK WIDTH AND SPACING, AND GAP LENGTH AND THROAT HEIGHT, INTER ALIA. CONDUCTORS OR WIRES ARE DISPOSED IN GROOVED PORTIONS OF A MAGNETIC FERRITE BACK STRUCTURE FOR ELECTROMAGNETIC COUPLING WITH THE TRANSDUCING GAPS DISPOSED IN THE FRONT STRUCTURE. BONDING GLASSES HAVING THREE DIFFERENT FLOW TEMPERATURES ARE EMPLOYED FOR JOINING THE PARTS OF THE ASSEMBLY, AND THE COEFFICIENTS OF THERMAL EXPANSION OF THE SEVERAL PARTS MATCH WITHIN A NARROW RANGE.

公开(公告)号：US3681044A

公开(公告)日：1972-08-01

申请号：US3681044D

申请日：1970-07-06

Applicant: IBM

Inventor： RUSZCZYK JAMES F ,  SECRIST DUANE R

IPC: G11B5/133 ,  G11B5/235 ,  C03C27/00

CPC classification number: G11B5/133 ,  G11B5/235 ,  Y10T29/4903 ,  Y10T29/49057

Abstract: A GLASSING METHOD FOR JOINING A FERRITE RECORDING HEAD TO A CERAMIC SLIDER BY THE STEPS OF FILLING THE RECORDING HEAD GAP WITH A DEVITRIFIABLE GLASS AND CRYSTALLLIZING THE GLASS SO AS TO EFFECTIVELY RAISE ITS SOLTENING POINT AND HARDNESS; ADDING A SECOND GLASS MATERIAL TO THE SLIDER AREA TO WHICH THE HEAD IS TO BE JOINED, PLACING THE HEAD IN CONTACT WITH THE SLIDER, AND HEATING THE SECOND GLASS MATERIAL TO A TEMPERATURE SUFFICIENT TO JOIN THE HEAD TO THE SLIDER. THE SLIDER GLASS MATERIAL IS PREFERABLY ALSO THE SAME DEVITRIFIABLE GLASS MATERIAL AS USED WITH THE HEAD, AND MAY BE HEATED TO THE DEVITRIFYING TEMPERATURE. THIS LATTER SCHEME ALLOWS ONE GLASS SYSTEM TO BE EMPLOYED FOR MULTISTEP PROCESSES AT ONE COMMON LOW TEMPERATURE. REDUCED CORROSION AND IMPROVED WEAR CHARACTERISTICS ARE REALIZED.

D R A W I N G

公开(公告)号：US3670112A

公开(公告)日：1972-06-13

申请号：US3670112D

申请日：1969-08-18

Applicant: IBM

Inventor： RUSZCZYK JAMES F ,  SECRIST DUANE R

IPC: G11B5/60 ,  G11B5/10 ,  G11B5/42

CPC classification number: G11B5/6005

Abstract: An air bearing slider assembly includes a U-shaped magnetic head and a monolithic glass body which is formed in the glassy state so as to chemically as well as physically bond the head thereto, a nonmagnetic gap in the base of the head being disposed at an air bearing surface of the glass body to facilitate noncontact magnetic recording. The slider assembly is fabricated using a mold having a central cavity which defines the desired configuration of the glass body and which positions the magnetic head at a selected location relative to the glass body to be formed. The mold cavity is filled with a fluid glass composition which solidifies as a monolithic body in bonded relation to the head.

Abstract translation: 空气轴承滑块组件包括U形磁头和以玻璃态形成化学并且将磁头物理地结合在一起的整体玻璃体，头部的底部中的非磁性间隙设置在 玻璃体的空气轴承表面，方便非接触式磁记录。 滑块组件使用具有限定玻璃体的所需构造的中心腔的模具制造，并且将磁头定位在相对于待形成的玻璃体的选定位置。 模腔填充流体玻璃组合物，其固化为与头部结合的单体。

公开(公告)号：US3577634A

公开(公告)日：1971-05-04

申请号：US3577634D

申请日：1969-06-18

Applicant: IBM

Inventor： SECRIST DUANE R

IPC: G11B5/105 ,  G11B5/10 ,  G11B5/127 ,  G11B5/133 ,  G11B5/187 ,  G11B5/60 ,  H01F7/06

CPC classification number: G11B5/1335 ,  G11B5/10 ,  G11B5/187 ,  Y10T29/4903 ,  Y10T29/49057

Abstract: A magnetic head slider assembly, used in disc storage files for air bearing noncontact recording is formed from three parts that enclose a glass-bonded ferrite core. During manufacture, a high temperature glass is used to form the nonmagnetic gap in the core, and a low temperature glass is disposed adjacent to the gap glass between the pole pieces of the core. When the core is positioned within a cavity of the slider, the core containing both glasses is heated sufficiently to cause only the low temperature glass to flow and fill the cavity, thereby bonding the core to an inner wall of the cavity within the slider assembly.