The effect of laser marking is different from that of silk screen printing. Silk screen printing, which is generally recognized by everyone, can print a variety of colors, but laser marking is different. It can generally only appear in three colors: black, white, and gray, and will not fade. Laser marking machine is a device that uses high-energy laser beam to mark and engrave on the surface of various materials. Using a laser marking machine to type on aluminum alloy can produce different colors and effects according to different parameter settings.

      1. Color types for laser marking machines to type on aluminum alloys

      1. black

      Laser marking machines type on aluminum alloys and can usually produce a black color. This is due to the high-energy laser beam causing a chemical reaction on the surface of the aluminum alloy to form carbides, which appears black.

      2. White

      The laser marking machine can also mark white on aluminum alloy. This is caused by the laser beam causing vaporization on the surface of the aluminum alloy. When the laser power density reaches a certain level, the surface of the aluminum alloy can be vaporized to form a white rainbow coating, like lotus leaf white.

      3. Gray

      In addition to black and white, laser marking machines can also mark various degrees of gray on aluminum alloys. This is done by adjusting the wavelength and energy density of the laser beam to cause different chemical reactions to occur on the surface of the aluminum alloy, thereby showing different colors.

      2. Factors affecting the color of laser marking equipment on aluminum alloy

      1.Laser power

      Laser power is an important factor affecting typing color. High power can vaporize the aluminum alloy surface to form white, while low power density may produce black or gray. Of course, power is not the only factor that determines the effect, and aluminum alloys cannot be colored.

      1. Laser beam wavelength

      Laser beam wavelength also affects typing color. Laser beams of different wavelengths cause different chemical reactions on the surface of aluminum alloys, thereby producing different colors. The laser models of laser marking machines are diverse and can produce different effects. The type of laser used depends on what the user wants. Such effect.

      1.Aluminum alloy surface treatment

      The surface treatment of the aluminum alloy will also affect the typing color. For example, through pre- or post-processing, the chemical composition and structure of the aluminum alloy surface can be changed, thereby affecting the typing color.

In short, the laser marking machine can produce a wide variety of colors when typing on aluminum alloy, including black, white and various shades of gray.