The optical fiber laser marking system can mark different colors on stainless steel in addition to black, white and gray. Today, we will discuss how fiber laser marking machines can mark different colors on stainless steel.
Chuyu Optoelectronics focuses on laser marking machines and has many years of rich experience in the laser marking industry. We will guide you how to mark different color fiber laser marking machines on stainless steel.
We should know that there are 3 different ways to color stainless steel.
Step 1, the colored oxide is generated.
Step 2, a colorless transparent film is produced on the stainless steel surface by chemical, electrochemical or laser action, and the thickness of the oxide film is precisely controlled. Due to the diffraction effect, the oxide film with different thickness can be presented in different colors.
Step 3, it exists in the mixed state of colored oxide and oxide film.
The relationship between color change and laser energy in stainless steel color laser marking.
Under the action of laser, the stainless steel worktable has a laser thermal effect. Through the thermal effect of laser, we will obtain the relationship between laser energy density and film thickness, which is proportional to laser energy density. With the increase of laser energy, the color of stainless steel surface changes according to the following color sequence: orange red, purple, blue green, green green yellow, green yellow, orange red.
Therefore, you can mark anything you want, such as text, logo, logo, pattern, picture, etc. This is very easy, environmentally friendly and pollution-free, with a high marking speed. For the stainless steel industry, the color laser marking machine can greatly increase the value of stainless steel products. Enhance the international competitiveness of stainless steel products.