Apparatus for controlling the concentration and stability of an

Details Apparatus for controlling the concentration and stability of an Apparatus for controlling the concentration and stability of an

1978-10-03

1980-05-13

Combs, Ervin M.

Metal deforming

With cleaning, descaling, or lubrication of work or product

Lubricating

72236, B21B 2710, B21B 4502

Patent

active

042021936

ABSTRACT:
A method of and system for controlling the oil concentration in and the stability of an oil-in-water emulsion used as a coolant-lubricant in a metalworking operation in which a portion of the emulsion is circulated through a sensor to monitor its density and to generate a signal relating the density to the oil concentration. The signal is employed to control addition of oil to the emulsion to thereby control the concentration within close limits. Sensing means also monitors the stability of the circulated emulsion, and emulsifier is added, as required, either to the oil to be added or directly to the emulsion to thereby control both the oil concentration in and the stability of the emulsion.

REFERENCES:
patent: 2310563 (1943-02-01), Wilke et al.
patent: 2342199 (1944-02-01), Hurtt
patent: 3153420 (1964-10-01), Roberts
patent: 3208253 (1965-09-01), Roberts
patent: 3275018 (1966-09-01), Roberts
patent: 3408843 (1968-11-01), Treat
patent: 3409551 (1968-11-01), Treat
patent: 3505844 (1970-04-01), McLean
patent: 3709012 (1973-01-01), Larsonneor
patent: 3783664 (1974-01-01), Tripathi
patent: 3837199 (1974-09-01), Larsonneor
patent: 3954119 (1976-05-01), Kunioka et al.
patent: 4024742 (1977-05-01), Vucich et al.

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