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Color effect analysis of stainless steel laser marking

Date:2018-10-09 10:59:11 Number of visits:
Laser marking machine, can laser carving white, black is not strange, but laser marking machine of all kinds of colors may be relatively rare friends? Today, Daxinhua laser marking machine small weave to join us, under analysis, stainless steel laser marking color effect.
The research on color laser marking of stainless steel materials is mainly aimed at exploring the application field of laser marking machine and expanding the sales market of laser marking machine for laser equipment manufacturing enterprises. The added value of stainless steel products will enhance the international competitiveness of domestic stainless steel products.
Color effect analysis of stainless steel laser marking
At present, new technology development of stainless steel color marking has appeared in the field of stainless steel marking. But at present, there is little research work on this aspect. The main work of enterprises is only limited to the actual operation and debugging of color marking, and there is little theoretical research and mechanism analysis. Laser marking, as a new process of color stainless steel processing, is currently in the experimental stage, although there are a small number of practical production applications, but because of the imperfection of the process, the expansion of production has been hindered. In order to expand the practical application of color laser marking of stainless steel materials, it is very important to carry out research in this field.
The color developing principle of stainless steel and the corresponding relationship between color change and laser energy in laser color marking of stainless steel are studied. The main laser parameters affecting color marking are found out.
Study the essence of color and facilitate the understanding of the color developing principle of colored stainless steel.
Laser marking of stainless steel
There are three ways to study the principle of color development of colored stainless steel. One is the ion of colored oxides. The other is the ion of a very thin colorless transparent oxide film on the surface of stainless steel by chemical, electrochemical or laser action. A mixed state with the oxide film.
The interaction between laser and material is studied, including the absorption of laser by metal material and the heating process of laser to material. The surface microstructure of stainless steel samples with color laser marking was observed and the change of marking process was analyzed.
The laser thermal effect on the surface of stainless steel under laser irradiation is studied. Through the calculation of the laser thermal effect equation, it is found that the laser energy density is directly proportional to the thickness of the film. Experiments show that with the increase of laser energy, the color of stainless steel surface changes in the following order: orange-red-purple-blue-green-blue-blue-green-green-yellow-green-yellow-orange-red.
It is instructive for laser equipment manufacturers to design special stainless steel color laser marking machines. At present, the marking parameters of laser marking machine are: current, pulse repetition frequency, pulse width, point spacing, line spacing and marking speed. There is no direct relationship between the marking parameters and the color of stainless steel produced by laser. Quantity, pulse repetition frequency, pulse width and so on, reduce the variable parameters, improve the simplicity and reliability of color regulation, so that stainless steel laser color marking into mass industrial production possible.
The above is the Da Hsin Hua laser marking machine, and I hope to help you. Daxinhua laser production and sales of optical fiber laser marking machine, optical fiber laser welding machine, free technical guidance, free samples. Welcome to inquire /en/
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