Laser marking technology has been applied more and more in the printing field in recent years. Laser marking can be applied to various materials including plastics and rubbers, metals, and silicon wafers. Compared with traditional mechanical engraving, chemical etching, screen printing, and ink printing, laser marking has low cost, high flexibility, and can be controlled by a computer system. The firmness and permanentness of the mark produced by the laser acting on the workpiece surface is Its outstanding features. Currently, in the marking and printing industry, laser marking has occupied more than 90% of the market. The reason why laser marking has such a large share is because it has the following top ten advantages:
1. Permanent:
If the mark does not fade due to environmental concerns (touch, acid and reduced gas, high temperature, low temperature, etc.).
2. Anti-counterfeiting:
Marks carved with laser marking technology are not easy to copy and change, to a certain extent, have a strong anti-counterfeiting.
3. Non-contact:
Laser marking is a non-mechanical "light knife" that can be printed on any regular or irregular surface, and the workpiece will not generate internal stress after marking, ensuring the original accuracy of the workpiece. No corrosion on the work surface, no "tool" wear, no poison, no pollution.
4. Wide applicability:
With laser processing methods, it can process a variety of metal, non-metallic materials (aluminum, copper, iron, wood products, etc.).
5. High engraving accuracy:
The laser engraving machine has a fine pattern of the carved objects, with a minimum line width of 0.04mm. Marking is clear, long-lasting and beautiful. Laser marking can meet the need for printing large amounts of data on very small plastic parts. For example, two-dimensional bar codes that require more precise and sharper definition can be printed, and have a stronger market competitiveness than embossing or inkjet marking.
6. Low operating costs:
Marking speed is fast and the marking is formed once. The energy consumption is small, so the running cost is low. Although
Laser Marking Equipment investment is larger than traditional marking equipment, the use of laser marking machines is much lower in terms of operating costs. for example:
1 plastic triode marking: marking machine working speed is 10 / sec, if the equipment is depreciated for 5 years, the marking cost is 0.00048 yuan / month. If a pad printer is used, its overall operating cost is about 0.002 yuan/a, or even higher.
2Bearing surface marking: If the bearing is divided into three equal divisions, a total of 18 No. 4 characters, the use of galvanometric marking machine, the lamp life of the lamp is calculated for 700 hours, the total cost of each bearing marking It is 0.00915 yuan. The cost of electroetched lettering is about 0.015 yuan/piece. Calculated with an annual output of 4 million sets of bearings, marking only one, at least 1 year can reduce the cost of about 65,000 yuan.
7. High processing efficiency
The laser beam under computer control can be moved at a high speed (up to 5 to 7 meters per second), and the marking process can be completed in seconds.
8. Fast development
Thanks to the combination of laser technology and computer technology, users can achieve laser print output as long as they are programmed on a computer, and can change the print design at any time, which fundamentally replaces the traditional mold making process and provides a shortened product upgrade cycle and flexible production. Convenience tools.
