Corrosion preventing apparatus, corrosion preventing method, and wire electric discharge machining apparatus
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United States of America Patent
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Jun 17, 2014
Grant Date -
Sep 20, 2012
app pub date -
Dec 4, 2009
filing date -
Dec 4, 2009
priority date (Note) -
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Abstract
A corrosion preventing apparatus including: a water purifying part that includes a hydrogen-ion form resin and a hydroxy-ion form resin; an anticorrosive part that includes a cation form resin and an anion form resin having anticorrosive ions supported thereon; a conductivity measuring part that measures a measured value of conductivity of a machining liquid; and a control part that controls a flow of the machining liquid to the water purifying part and the anticorrosive part on the basis of the conductivity measuring part; wherein the control part performs control on the basis of predetermined first and second conductivities and the measured value measured by the conductivity measuring part.
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