When the world's first car, "Mercedes-Benz No. 1" after the birth of the automobile industry has made rapid development, during which time only it is only 120 years.
    With the continuous improvement of vehicle speed, the security issues are also increasingly receive attention. The 1960s, the United States issued the first recall system for vehicles, "National Traffic and Motor Vehicle Safety Act", and auto parts made strict traceability requirements, auto parts marker technology has thus prelude, the laser marking machine in the history of automotive parts industry is about to begin.
    Mark is currently a common way of auto parts are: die casting, electric corrosion, stickers, screen printing, pneumatic marking and laser marking tag. Although one laser marking the birth of the latest technology, but since the birth of their indelible mark received widespread attention.
    Laser marking technology for the automotive parts main advantage of markers, which is a fast, programmable, non-contact process, the process lasting, usually from the production process of the steps required, nor endured by the poor on-site environmental impact. Of course, it also has disadvantages, such as laser marking equipment, the higher initial cost, in some applications (such as mark plastic products) in marked contrast shortage.
    Typically, auto parts marking, the main two types of laser marking machine:
    1.CO2 laser marking machine, as its name, which is carbon dioxide gas used to generate monochromatic light, to mark the formation of 10640nm wavelength for non-metallic materials and metal surface paint markings.
    2.Nd3 +: YAG laser marking machine, a mixture of silicon carbide crystalline material used as a medium to 1064nm wavelength to generate near-and far-infrared beam. For some non-metallic materials and metal materials marks.
    Nd3 +: YAG laser field of a new development for laser marking of plastics additives, virtually eliminated the contrast. Even in the 1064nm wavelength is difficult to absorb some of the plastic surface, can also be Nd3 +: YAG laser to obtain a very clear marker (Figure 1).
    Auto parts and two-dimensional bar code on all of today's popular forms of product traceability technology, fully applicable to all types of auto parts.
    Early major auto parts marking mark against the serial number marked on the product to meet the traceability requirements of bar code to be quickly applied to the birth of the identity of auto parts, but its message less tolerant of poor it has not been fully The popularity of this technology until the birth of two-dimensional code was solved.
    Automotive industry, driven by strong automotive parts industry, laser marking machine in its use, the result of a permanent marker, convenient and retrospective, playing standard rate is relatively higher advantage really, to be consistent with the industry and consumers praise.