发明名称 |
Magnetic strips and methods for making the same. |
摘要 |
<p>Methods for preparing magnetic strips are provided in which the strips are manufactured to a thickness of less than about 0.005 inches and are made of a ferrous alloy having a carbon content of from about 0.4 to about 1.2 weight percent. The strips are prepared by first manufacturing an alloy having a carbon content below about 0.5 weight percent to the desired thickness and then subjecting the strip to a carburizing step to raise the carbon content in the strip.</p> |
申请公布号 |
EP0640692(A1) |
申请公布日期 |
1995.03.01 |
申请号 |
EP19940113413 |
申请日期 |
1994.08.26 |
申请人 |
SPS TECHNOLOGIES, INC. |
发明人 |
MANNING, NEIL R. DR.;ANDERSON, RICHARD L. |
分类号 |
C21D1/18;C21D6/00;C21D8/12;C23C8/22;H01F1/147;H01F1/16;(IPC1-7):C21D8/12 |
主分类号 |
C21D1/18 |
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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