Continuous evaluation of thermal stability of quenching oils

Details Continuous evaluation of thermal stability of quenching oils Continuous evaluation of thermal stability of quenching oils

1975-03-12

1976-07-13

Goldstein, Herbert

Measuring and testing

Gas content of a liquid or a solid

By vibration

73 64, G01N 2500

Patent

active

039686779

ABSTRACT:
Testing apparatus and method for use in evaluating thermal stability of quenching oil wherein a relatively small quantity of the oil contacts a metallic heating element maintained at a temperature between about 1000.degree.-1500.degree.F. The contacting oil comes from a relatively large amount of oil and just prior to contact it is at a temperature lower than the flash point of the oil. Operation is continuous and substantially compresses testing time. Following the testing an oil sample can be chemically tested to determine its degree of degradation which is an indication of its thermal stability.

REFERENCES:
patent: 1770735 (1930-07-01), Funk
patent: 3680356 (1972-08-01), Felton, Jr.

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