Surface-treating method for back plate for friction material
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United States of America Patent
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-
Aug 7, 2001
Grant Date -
N/A
app pub date -
Mar 25, 1999
filing date -
Apr 6, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Improvement in a method of surface-treating a back plate for friction material by blasting slurry containing particles made of plastic material through high pressure air to obtain desired surface roughness constantly for a long period of time. In the present method, no alumina grinding particle but particles made of stainless steel or titanium are fed into slurry, and the slurry is blasted through high pressure air to surface-treat the back plates. Stainless steel or the like strike works to make the surface thereof rough, which does not cause the stainless steel particles or titanium particles to be broken, unlike the grinding particles, so that the amount of sludge generated is reduced, resulting in longer life of the slurry.
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