G - Physics – 05 – D
Patent
G - Physics
05
D
G05D 21/02 (2006.01) B23Q 11/10 (2006.01)
Patent
CA 2057905
2057905 9014624 PCTABS00002 A metalworking fluid central system (30) through which aqueous cutting fluid recirculates through a plurality of machine tools (32) is provided with an in-line fluid condition monitor (80) which produces real-time fluid composition data for use in controlling the condition of the fluid. Four sensors simultaneously measure temperature, pH, dissolved oxygen and conductivity at hourly intervals and the data is stored in a computer module linked to the monitor. A plurality of diversely located plants (12, 12, 12b) are similarly equipped. A computer (21) at a remotely located central monitoring facility selectively connects to the computer modules (75) at the various plants through modems (22, 92) and a telephone system to collect the data daily. The data is analyzed at the central facility and decisions are made manually and automatically to add components to the fluid at the respective plants or to take other corrective action. Commands and recommendations are communicated to the computer modules at the respective plants where they are manually and automatically implemented by the operation of valves, pumps or other devices or methods to modify the make-up of the fluid in the central system.
Cincinnati Milacron Inc.
Macrae & Co.
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