Magnetic information recording and/or reading head with increased
wear-resistant properties and a method for manufacturing the same
    1.
    发明授权
    Magnetic information recording and/or reading head with increased wear-resistant properties and a method for manufacturing the same 失效
    具有增加的耐磨性能的磁信息记录和/或读取头及其制造方法

    公开(公告)号:US4876790A

    公开(公告)日:1989-10-31

    申请号:US170681

    申请日:1988-03-14

    CPC classification number: G11B5/255 Y10T29/49055

    Abstract: A magnetic head for information recording and/or reading which comprises a pair of half poles (10,11) each consisting of a plurality of soft iron sheets (12) having predetermined profiles. The half poles are attached to each other to define an air gap (13) in front of a magnetic carrier (16). A coil (15) is arranged on the core. Thin hard coatings (18) are deposited on the surfaces of the sheets (12) at least in the region of the air gap and the frontal contact zone (17) with the carrier, whereby a laminated sandwich structure is obtained, in which the hardness is periodically changing along the width of the carrier. Owing to the rigidity of the carrier, the hard coatings resist to wear caused by the sliding movement of the carrier. The presence of the thin coatings does not decrease the resulting permeability of the core. The coating is deposited by means of high rate reactive cathode sputtering technique, which provides for optimum hardness and cohesion to the iron substrate. A preferable coating material is titanium nitride.

    Abstract translation: PCT No.PCT / HU84 / 00053 Sec。 371日期:1985年9月5日 102(e)1985年9月5日PCT PCT日期:1984年11月9日PCT公布。 第WO85 / 02289号公报 日期:1985年5月23日。一种用于信息记录和/或读取的磁头,包括一对半极(10,11),每个半极由多个具有预定轮廓的软铁片(12)组成。 半极彼此连接以在磁性载体(16)前面限定气隙(13)。 线圈(15)布置在芯上。 至少在气隙和正面接触区域(17)与载体的区域中,将薄的硬涂层(18)沉积在片材(12)的表面上,由此获得层压夹层结构,其中硬度 沿着载体的宽度周期性地改变。 由于载体的刚性,硬涂层抵抗由载体的滑动运动引起的磨损。 薄涂层的存在不会降低芯的所得渗透性。 通过高速反应阴极溅射技术沉积涂层,其提供了对铁基材的最佳硬度和内聚力。 优选的涂层材料是氮化钛。

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