| 摘要 |
A laser such as a continuous wave Nd:Yag or carbon dioxide unit is configured for optimized virescence of a colorant carrier and an object placed in the path of the beam. The beam is steered via computer controlled motors attached to reflecting mirrors located in the path of the beam. Graphical characters and letters can be vitrified into the surface of objects which are placed in the working area of the beam by running computer software for controlling the beam steering mirrors. A laser with adequate vitrification power will then vitrify, or change to glass, the surface of clay-containing objects including the colorant carrier falling in the path of the laser beam. The width of the beam, temperature and moisture content of the clay-containing object, gaseous atmosphere at the work surface and speed of beam movement can be optimized to maximize the throughput of a laser marking system. Vitrification of porous non-vitrifiable objects is possible by adding clays to the carrier. The use of a sealed colorant package allows prepackaging colorants to be used eliminating the need for handling various pigments that can stain or are known carcinogenic.
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