Title:
COOLANT QUALITY MANAGEMENT SYSTEM AND COOLANT QUALITY DETECTION UNIT
Document Type and Number:
WIPO Patent Application WO/2019/189212
Kind Code:
A1
Abstract:
[Problem] To provide a coolant quality management system for detecting the quality of a coolant for cooling a machining tool while a metal-machining device is operating or stopped, and a coolant quality detection unit to be used therein. [Solution] A coolant quality management system equipped at least with a temperature measurement means, a concentration measurement means and a pH value measurement means which collect coolant from near the liquid level surface inside a coolant storage tank located along a coolant supply path at each prescribed time or during each prescribed interval, and respectively measure the temperature, concentration and pH value thereof, wherein: the concentration measurement means measures concentration by converting to a concentration value on the basis of a change in the refractive index of light in the collected coolant; the pH value measurement means measures the pH value by estimating hydrogen ion concentration on the basis of a change in the conductivity of the collected coolant; and the measurements of the collected coolant by the temperature measurement means, the concentration measurement means and the pH value measurement means are performed simultaneously.
Inventors:
YAMAMOTO KENGO
SHINDO MASATOSHI
HENMI MASAHITO
YAMANOUCHI TAKAYUKI
SHINDO MASATOSHI
HENMI MASAHITO
YAMANOUCHI TAKAYUKI
Application Number:
PCT/JP2019/012922
Publication Date:
October 03, 2019
Filing Date:
March 26, 2019
Export Citation:
Assignee:
YAMAMOTO METAL TECHNOS CO LTD (JP)
International Classes:
B23Q11/10; B23Q17/00
Foreign References:
| JPH0985577A | 1997-03-31 | |||
| JP2006130603A | 2006-05-25 | |||
| JPH11276818A | 1999-10-12 | |||
| JP2009136986A | 2009-06-25 | |||
| JP2014111284A | 2014-06-19 | |||
| JP2014176942A | 2014-09-25 |
Attorney, Agent or Firm:
YAMAGUCHI,Nobuyuki (JP)
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