Will the laser marking machine fade after marking the product?

Will the laser marking machine fade after marking the product? Today, the laser marking machine technicians will give you a specific introduction.

We use fiber laser marking machine or semiconductor laser marking machine on metal or stainless steel products to mark first and then passivate, often fading occurs . You may be confused as to whether to mark after passivation or fade. For some users, after marking (not passivated before and after marking), the color is still faded after inserting it with a rubber. In fact, the so-called color is metal oxide, and the process of passivation is also an oxidation process. The color of the oxide changes, of course.

When the eraser fades, the oxide layer will peel off. You can use the fiber laser marking machine to process the waterproof or anti-oxidation layer on the surface. The co2 laser marking machine can mark and code on many plastic products. Marking, such as mobile phone shells, panels, PCB boards, computer and other office tool shells and accessories, electrical shells and accessories, various electrical connectors, and automotive interior parts need to be marked with product trademarks, specifications, materials, manufacturers, and manufacturing Date, expiration date, etc. Some plastic pipes need to be marked with the model of the molding machine.

There are a variety of marking methods for plastic products, such as direct molding (that is, directly engraved on the injection molding mold), imprinting, hot embossing, inkjet, laser marking, etc. Either method requires clear marking, strong and durable, and will not disappear by the action of mechanical, chemical and physical factors.

Due to economic reasons, direct molding, embossing and hot embossing methods are now more commonly used in China. Inkjet printing has increased. Especially in the pipe production line, laser marking methods are rare. . Because the laser marking method does not require inks and solvents, has good environmental adaptability, can flexibly control the marking shape through a computer, and can mark data density, its application range is expanding, especially in automotive interior parts. The application is growing rapidly. . However, the laser marking method also has shortcomings. In order to make clear laser marking plastics, the materials need to be appropriately modified with special additives.

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