发明名称 |
METHOD FOR PRODUCING RIGID MAGNETIC RECORDING DISKS |
摘要 |
The present invention discloses a rigid magnetic recording disk and a method of making the same. The substrate is formed by metallurgically bonding at least a first and second layer of clad materials. The hardness and mechanical strength of the first layer is substantially greater than the second layer. The first layer has a thickness which is from about 0.2% to about 20% the thickness of the second layer. The unbonded surface of the first layer is substantially flat and asperity free. The second layer is less dense than the first layer. A magnetic layer is deposited on the unbonded surface of the first layer. |
申请公布号 |
AU3196589(A) |
申请公布日期 |
1989.09.06 |
申请号 |
AU19890031965 |
申请日期 |
1989.02.06 |
申请人 |
OLIN CORPORATION |
发明人 |
CHARLES W. SMITH;SHELDON H. BUTT;EUGENE SHAPIRO |
分类号 |
G11B5/73;G11B5/738;(IPC1-7):B32B15/20 |
主分类号 |
G11B5/73 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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