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Quenchometer (magnetic Quenchometer Method)

Affirming to Astm D 3520-88 (Reapproved 1993) The quenching test assesses the quenching speed attributes of petroleum liquids utilized within the quenching of metals by Magnetic Quenchometer.

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The test strategy confirms the time for cooling a chromised nickel ball from 8850c approx. to 3540c. the point when extinguished in 200 ml. Of test liquid in a non-attractive metal measuring utencil at a prespecified temperature.

 An advanced timer, (with a determination of 0.01seconds) records the time taken for the ball to cool to curie temperature.

 The timer is initiated by a photocell triggered by the hot ball, and is halted when the ball gets attractive (Curie Point more or less 3540c), and is pulled in by a magnet, tripping a switch.

 The outcomes got from this test serve as an aide for selecting oil concerning quenching speed aspects, and furnish a measure of quenching speed (cooling rate).

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