Laser quenching light absorption coating with heat preservation function and preparation method thereof

Abstract

The invention discloses a laser quenching light absorption coating with a heat preservation function and a preparation method thereof. The laser quenching light absorption coating comprises the following components in parts by weight: 0.5-1 part of zirconium dioxide, 8-10 parts of rare earth rhenium, 6-8 parts of carbon black, 20-23 parts of thermoplastic acrylic varnish, 60-62 parts of benzene-free banana oil and 0.5-1 part of ethyl cellulose. The laser quenching light absorption coating has a good heat preservation function, the heat preservation and heat conduction time of the surface of the base material can be prolonged when the coating is coated on the surface of the base material during laser quenching, so that the depth of a laser quenching hardened layer is increased, and the coating is simple in preparation method, easy to coat and easy to remove after laser quenching. The problems that an existing light absorption coating is too fast in heat conduction in the laser quenching process, the depth of the laser quenching hardened layer is small and the like are effectively solved.

Description

technical field [0001] The invention relates to the field of laser quenching light-absorbing coatings, more specifically, to a laser quenching light-absorbing coating with heat preservation function and a preparation method thereof. Background technique [0002] Laser quenching is a quenching technology that uses a laser to heat the surface of a material above the phase transition point. As the material itself cools, austenite transforms into martensite, thereby hardening the surface of the material. It is unique in improving the surface hardness and wear resistance of the material. Effect. Previous studies on laser quenching coatings mainly focused on the light absorption performance, and the depth of the hardened layer of the sample was enhanced by increasing the light absorption rate. The thermal insulation performance of the coating affects the process of heat conduction from the surface of the substrate to the interior under the action of the laser, and regulates the d...

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Problems solved by technology

[0007] The purpose of the present invention is to solve the problems of the existing laser quenching coatings, such as low efficiency in improving the light absorption rate, too strong heat insulation, large heat loss, poor heat preservation effect and light absorption efficiency, and the obtained hardened layer is relatively shallow. A laser quenching light-absorbing coating with thermal insulation function and a preparation method thereof, which has good thermal insulation performance, high light absorption rate, reasonable formula, simple preparation, and remarkable application effect

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