What is MOPA laser?
MOPA laser marking machine is a new generation of laser marking machine system developed by
our company using advanced laser technology in the world. The optical fiber MOPA laser is used to
output the laser, and the high-speed scanning galvanometer system is used to realize the marking
function. The fiber laser marking electromechanical light conversion efficiency is high, and it is cooled
by air cooling method. The whole machine is small in size, the output beam quality is good, and the
reliability is high. It can engrave metal materials and some non-metal materials. The fiber laser adopts
integrated whole structure, no optical pollution and power coupling and loss, air cooling, high efficiency,
long life and low maintenance.
1. Ink and paint: mobile phone battery labels, panels, mobile phone buttons, small daily necessities accessories, etc.
2, ceramic, EP material laser marking: electronics, component packaging, IC and so on.
3, plastic products: electrical shells, electronic products and other products serial number, LOGO and so on.
4, metal and surface: stainless steel, copper, aluminum and oxidation plating, often used in hardware, daily necessities,
electrical appliances, mobile phone casings.
5, keyboard and buttons: keyboard, buttons and other fine marking
Nowadays, there are more and more products made of anodized aluminum. Due to the special material
characteristics of anodized aluminum, there are not many equipments for making the label relatively firm
and long-lasting. The MOPA adjustable pulse width laser marking machine is very visual and permanent on
Alumina laser marking machine principle:
The mechanism of blackening the anodized aluminum is to further oxidize the anodized aluminum layer with
a thickness of 5-20 um in a short time by using a high energy density laser after focusing, using a special
frequency and density and an adjustable pulse width. Change the color of the surface material.
The thickness of the film directly determines the effect and efficiency of blackening, and the film thickness is
generally easy to blacken at 10-20 um. When the film thickness is less than 8 um, the oxide film is too thin,
it is easy to break, and white spots appear, and it is necessary to increase the pulse frequency and increase
the packing density. In addition, the surface treatment process of anodized aluminum will directly affect the
blackening effect. Sandblasting and surface drawing are common processes. The thickness of sandblasting
will have different effects on the marking effect. The finer the sandblasting particles, the better the blackening
effect . It is recommended that the film thickness of the anode aluminum be 10-15 μm, so that the overall
blackness effect is better.
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