MOPA laser stainless steel high purity coloring process

Stainless steel material has excellent corrosion resistance, wear resistance, toughness, craftsmanship, non-toxicity and its clean decorative properties, and has been widely used in the fields of building materials, kitchenware sanitary ware, automobiles, decoration, arts and crafts and so on. Stainless steel products have become an indispensable tool or material in people's daily life. With the continuous improvement of people's living standards, the pursuit of products is not only limited to its functionality, but also in the appearance of the product features, artistic temperament and other added-value aspects of the more and more requirements.

As the original color of stainless steel is silver-white, giving a person a monotonous, cold feeling, inspired by the pattern decoration, people began to pursue the stainless steel with different colors, giving a person a warm, soft feeling, to improve its added value, coloring stainless steel not only maintains all of its original characteristics, and coloring stainless steel chemical corrosion resistance, aging resistance, and many other properties of the original performance has been significantly improved, color! Colored stainless steel not only reflects its artistic side, but also more in line with people's pursuit of products.

MOPA laser stainless steel coloring principle

Stainless steel coloring principle: stainless steel material in the laser heat, the surface of the colored oxide or generate a layer of colorless transparent oxide film, due to the light of the thin film interference effect and present a variety of colors. Stainless steel color effect, mainly because of the thin film interference effect. Figure 4 for the thin film interference principle diagram.

Advantages of stainless steel coloring with MOPA lasers

Compared with traditional coloring methods, MOPA laser coloring has multiple advantages:

(1) non-contact processing, no consumables, no need to remove the material, not easy to wipe, high anti-counterfeiting;

(2) No chemical coloring, environmental protection and no pollution, to avoid the production of toxic and harmful substances;

(3) Simple process, easy to operate, high added value of the product, can mark any color pattern and text.。