Method for making thin magnetic strips
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United States of America Patent
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-
Jul 11, 1995
Grant Date -
N/A
app pub date -
Aug 30, 1993
filing date -
Aug 30, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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.
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