MULTILAYER METAL MEMBER FOR IMAGE FIXATION
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United States of America Patent
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Issued Date -
Oct 9, 2014
app pub date -
Apr 2, 2014
filing date -
Apr 3, 2013
priority date (Note) -
Abandoned
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Abstract
The invention provides a multilayer metal member for image fixation which does not readily undergo breakage due to bending stress during use thereof and which has improved durability. The multilayer metal member includes a metal substrate formed of at least three laminated metal layers, and a fluororesin layer disposed on the metal substrate, wherein the metal substrate has a first layer which is an electrocast seamless belt formed of nickel or a nickel alloy, a second layer which is an electrocast seamless belt formed of a metal having a Young's modulus smaller than that of the first layer, and a third layer formed of a metal having a corrosion resistance higher than that of the second layer; and the ratio (y) of the thickness of the third layer to that of the first layer satisfies the following formula:
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