公开(公告)号：US06863759B2

公开(公告)日：2005-03-08

申请号：US10055820

申请日：2002-01-23

申请人： Michael A. Richmond ,  Michael K. Aghajanian ,  Allyn L. McCormick ,  W. Michael Waggoner ,  Brian E. Schultz

发明人： Michael A. Richmond ,  Michael K. Aghajanian ,  Allyn L. McCormick ,  W. Michael Waggoner ,  Brian E. Schultz

IPC分类号： C04B35/573 ,  C04B35/65 ,  C04B37/00 ,  B32B7/08 ,  B32B31/20 ,  C01B31/36 ,  C04B33/00 ,  C04B35/524

CPC分类号： C04B35/62655 ,  C04B35/573 ,  C04B35/62665 ,  C04B35/63452 ,  C04B35/65 ,  C04B37/005 ,  C04B37/008 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3804 ,  C04B2235/3813 ,  C04B2235/3821 ,  C04B2235/3826 ,  C04B2235/3843 ,  C04B2235/3847 ,  C04B2235/3865 ,  C04B2235/3873 ,  C04B2235/3886 ,  C04B2235/40 ,  C04B2235/401 ,  C04B2235/402 ,  C04B2235/404 ,  C04B2235/405 ,  C04B2235/407 ,  C04B2235/408 ,  C04B2235/421 ,  C04B2235/428 ,  C04B2235/48 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5472 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/6567 ,  C04B2235/658 ,  C04B2235/725 ,  C04B2235/94 ,  C04B2237/083 ,  C04B2237/09 ,  C04B2237/365 ,  C04B2237/525 ,  C04B2237/61 ,  C04B2237/66

摘要： Techniques to bond two or more smaller bodies or subunits to produce a unitary SiC composite structure extend the capabilities of reaction-bonded silicon carbide, for example, by making possible the fabrication of complex shapes. In a first aspect of the present invention, two or more preforms are bonded together with a binder material that imparts at least strength sufficient for handling during subsequent thermal processing. In a second aspect of the present invention, instead of providing the subunits to be bonded in the form of preforms, the subunits may be dense, SiC composite bodies, e.g., RBSC bodies. In each of the above embodiments, a preferable means for bonding two or more subunits combines aspects of adhesive and mechanical locking characteristics. One way to accomplish this objective is to incorporate a mechanical locking feature to the joining means, e.g., a “keyway” feature. The mechanical locking feature thus substitutes for, or supplements the binder qualities of the adhesive, which is especially important when the adhesive itself may be or become weak due to, for example, thermal processing.

摘要翻译： 将两个或多个较小体或亚单位结合以产生单一SiC复合结构的技术例如通过使制造复杂形状成为可能而延伸了反应粘合碳化硅的能力。 在本发明的第一方面中，两个或更多个预成型件用粘合剂材料粘合在一起，所述粘合剂材料在随后的热处理期间至少施加足以处理的强度。 在本发明的第二方面，代替以预成型件的形式提供待接合的亚基，亚基可以是致密的SiC复合体，例如RBSC体。 在上述每个实施例中，用于粘合两个或更多个亚基的优选手段组合粘合剂和机械锁定特性的方面。 实现该目标的一种方式是将机械锁定特征结合到接合装置，例如“键槽”特征。 机械锁定特征因此代替粘合剂的粘合剂质量，或者补充粘合剂的粘合剂质量，这在粘合剂本身由于例如热处理而可能变弱或变弱时尤其重要。

公开(公告)号：US06517953B1

公开(公告)日：2003-02-11

申请号：US09763688

申请日：2001-02-26

申请人： Brian E. Schultz ,  Michael K. Aghajanian

发明人： Brian E. Schultz ,  Michael K. Aghajanian

IPC分类号： B32B1500

CPC分类号： C04B41/009 ,  B22F2003/247 ,  B22F2998/00 ,  B22F2999/00 ,  C04B35/101 ,  C04B35/111 ,  C04B35/522 ,  C04B35/565 ,  C04B35/62635 ,  C04B41/5155 ,  C04B41/88 ,  C04B2111/00879 ,  C04B2235/3217 ,  C04B2235/36 ,  C04B2235/3826 ,  C04B2235/401 ,  C04B2235/425 ,  C04B2235/483 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/602 ,  C04B2235/6562 ,  C22C1/1036 ,  C22C2001/1021 ,  C22C2001/1063 ,  C22C2204/00 ,  Y10S428/926 ,  Y10T428/12486 ,  Y10T428/12535 ,  Y10T428/12576 ,  C04B41/4517 ,  C04B41/4523 ,  C04B41/53 ,  C04B35/10 ,  C04B38/00 ,  B22F2201/02 ,  C04B41/455 ,  C04B35/00 ,  C22C47/08

摘要： Often, metal matrix composites (MMC's) lack adequate machinability and possess excessive abrasiveness because hard ceramic materials, such as silicon carbide, are used as the reinforcement phase. To make a metal matrix composite body having a more machinable and less abrasive surface, an MMC comprising an aluminum nitride reinforcement is formed on the surface of the body. In one embodiment, a layer is provided to a permeable mass or preform at the surface at issue, the layer featuring at least a reduced loading of ceramic filler material, and sometimes no ceramic material at all. The reduced loading is achieved by incorporating a fugitive material into the coating layer. Molten matrix metal is caused to infiltrate the permeable mass or preform and the coating layer to produce a macrocomposite body comprising a metal matrix composite coating and substrate. The metal matrix composite coating layer is distinguishable from the metal matrix composite substrate material, both compositionally and in terms of resulting properties. Under spontaneous infiltration conditions, as defined herein, aluminum nitride forms in-situ in the infiltrated body, including the surface layer. The present coating technique, however, permits a thicker MMC surface layer to be produced than could be produced previously. The present MMC surface layer can be applied to virtually any reinforced or unreinforced aluminum or aluminum alloy body.

摘要翻译： 通常，金属基复合材料（MMC）由于硬质陶瓷材料（如碳化硅）被用作增强相，因此缺乏足够的机械加工性并具有过度的磨损性。 为了制造具有更多可加工性和磨蚀性较差的表面的金属基质复合体，在本体的表面上形成包含氮化铝增强材料的MMC。 在一个实施方案中，在所讨论的表面上向可渗透质量块或预成型件提供一层，该层具有至少减少的陶瓷填料材料的载荷，并且有时根本不具有陶瓷材料。 减少的负荷是通过将一种短暂的材料掺入涂层来实现的。 使熔融基质金属渗入可渗透物质或预型体和涂层中以产生包含金属基质复合涂层和基底的大复合体。 金属基复合涂层与金属基复合基材材料的组成和结果特性无异。 在如本文所定义的自发渗透条件下，氮化铝在渗透体中原位形成，包括表面层。 然而，当前的涂覆技术允许生产比之前可以生产的更厚的MMC表面层。 本MMC表面层可以应用于几乎任何增强或未增强的铝或铝合金体。

公开(公告)号：US5363261A

公开(公告)日：1994-11-08

申请号：US149882

申请日：1993-11-10

申请人： Eric A. Eckberg ,  Bruce P. Kruger ,  Richard E. Lagergren ,  Brian E. Schultz ,  Amy L. Warner

发明人： Eric A. Eckberg ,  Bruce P. Kruger ,  Richard E. Lagergren ,  Brian E. Schultz ,  Amy L. Warner

IPC分类号： G11B5/54 ,  G11B21/22

CPC分类号： G11B21/22 ,  G11B5/54

摘要： A magnetic bistable latch mechanism for latching the actuator of a disk drive in a parked position is described. The latch comprises a magnetically detented latch lever which engages and latches a latch arm in a parked position. The latch arm is part of actuator motor structure and accordingly latches the actuator motor. The latch lever is held in either the latched or unlatched position by magnetic attraction and resists shocks and impacts that otherwise would move the actuator. The latch lever is shifted from one position t the other by the actuator motor eliminating the need for additional circuitry or mechanisms to control the latch. Additionally, the latch does not consume any electrical power in either the latched or unlatched condition.

摘要翻译： 描述了用于将盘驱动器的致动器锁定在停放位置的磁双稳态闩锁机构。 闩锁包括磁性定位的闩锁杆，其将锁定臂接合并锁定在停放位置。 闩锁臂是执行器电机结构的一部分，因此锁定执行器电机。 闩锁杆通过磁吸力保持在锁定或解锁位置，并抵抗冲击和冲击，否则将使执行器移动。 闩锁杆由致动器马达从一个位置彼此移位，从而不需要额外的电路或机构来控制闩锁。 此外，闩锁在消隐或非锁定状态下不消耗任何电力。

公开(公告)号：US5251081A

公开(公告)日：1993-10-05

申请号：US1942

申请日：1993-01-08

申请人： Luke A. Cossette ,  Christopher G. Keller ,  Brian E. Schultz

发明人： Luke A. Cossette ,  Christopher G. Keller ,  Brian E. Schultz

IPC分类号： G11B17/038 ,  G11B19/20 ,  G11B25/04 ,  G11B33/14 ,  H02K11/00 ,  G11B17/02

CPC分类号： G11B33/1493 ,  G11B25/043 ,  H02K11/40 ,  G11B33/1446

摘要： Disclosed is a disk drive having an enclosure for housing one or more disks, an actuator arm and sliders attached to the actuator arm. The sliders include magnetic transducers for reading information related to data off the disk and for writing representations of data to the disk. In a disk drive with an in-hub, fixed spindle shaft motor, the disk or disks are attached to the hub which is rotatably mounted to the spindle shaft. The hub includes one or more fingers attached to the hub which touch the spindle shaft when the hub is stationary and when the hub is rotating. The spindle shaft may also be provided with a wear resistant layer and/or ring of conductive material to enhance the electrical pathway between the hub and the spindle shaft and provide for lower wear and a longer life.