Stainless steel has various properties such as wear resistance, corrosion resistance, toughness, non-toxicity, etc. It is widely used in kitchenware, bathroom, automobile, decoration, arts and crafts, and building materials in our daily life. Some stainless steels have lightly colored fonts or patterns, while others have no color at all.
So what kind of laser marking machine is used to process such colorful fonts or patterns?
The natural color of stainless steel is silver-white, and it is a cool color in coloration. Products made of stainless steel sometimes require laser engraving patterns, barcodes, serial numbers, etc.
The advantage of MOPA laser marking machine is that its pulse width and frequency are independently adjustable, and adjusting one of them will not affect other laser parameters. Under the action of laser heat, the surface of stainless steel produces colored oxides or a colorless and transparent oxide film, which presents various colors due to the thin film interference effect of light.
Compared with traditional coloring such as printing and coding, MOPA red laser marking machine has many advantages:
Non-chemical coloring has no effect on the appearance of the material, but only affects the processing part. No consumables, strong anti-counterfeiting, clear and lasting color, it can mark arbitrarily.