发明名称 METHOD AND DEVICE FOR TEXTURING MAGNETIC DISK SUBSTRATE
摘要 PURPOSE:To decrease the attachability and floating height of a magnetic recording disk by providing an area which forms a deep texture groove in an annular area neighboring to the inner edge part of the disk and with low inside compressibility, and an area which forms a shallow texture groove extending over the entire outer side annular part of a substrate surface and with high outside compressibility. CONSTITUTION:An inner side circular area 42 centering the rotary shaft 24 of a texturing pad 40 and an annular outer side area 44 occupying the remaining part of the surface of the pad are provided at the texture pad 40. The inner side area of the pad is formed with a raw material with comparatively low compressibility, and comparatively deep texture can be formed in the area coming in contact with a substrate 14 under the existence of particle slurry 36. Also, the outer side area of the pad is formed with the raw material with comparatively high compressibility, and an extremely shallow groove is formed in the area coming in contact with the substrate 14 under the existence of the particle slurry 36, which enables almost smooth texturing to be performed. In such a way, it is possible to reduce the wear and drag of both the disk and a head, and to decrease the floating height.
申请公布号 JPH03248328(A) 申请公布日期 1991.11.06
申请号 JP19900324905 申请日期 1990.11.27
申请人 HITACHI METALS LTD 发明人 ATEFU ETSUCHI ERUTOUKII;YATSUSHIN MEMANDOSUTO;MURAKAMI SHIRO
分类号 B24B7/16;B24B37/04;G11B5/84 主分类号 B24B7/16
代理机构 代理人
主权项
地址