Keywords: quenching oil, quenching oil tank, first raise, brightness,

The biggest problem of quenching oil purification is that with the use of quenching oil in quenching oil tank, various impurities are most likely to be produced, and the impurities will be more and more. At this time, the oil will be purified to extend the service life of quenching oil. Most of them can be treated in the following ways:

1. natural settlement of impurities

first raise the oil temperature of quenching oil to 90-100 ℃ to reduce the viscosity of quenching oil so that some fine impurities in quenching oil can naturally settle to .

add additives with adsorption effect to the quenching oil to adsorb impurities still suspended in the quenching oil into large particles and then settle at the bottom of the oil tank.

3. Remove impurities

Remove the deposited impurities at the bottom of the oil tank and reuse the upper quenching oil.

4. add quenching oil brightening additive to repair the brightness of quenching oil

add a certain proportion of brightening additive to the filtered quenching oil to improve the brightness in the quenching process of quenching oil.

Through the above methods, the bright performance of aging quenching oil is improved, the appearance quality of the workpiece is improved, the production process of the workpiece is reduced, the comprehensive operating cost is reduced, and the service life of the oil is prolonged.

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