The difference between fiber laser marking machine and UV laser marking machine

At this stage, the types and specifications of laser marking machines commonly used in the market include fiber laser marking machines and ultraviolet laser marking machines. Which of the two is stronger? In fact, both have advantages and disadvantages, but the gap is also very large, such as principles, production and processing methods, application costs, etc. are different.

First let's take a look at the difference between fiber laser marking machine and UV laser marking machine

1. Different lasers

The fiber laser marking machine uses rare earth-doped glass fiber as the gain value material laser, and the laser light wavelength is 1064nm. The UV laser marking machine applies UV laser with a light wavelength of 355nm.

2. The principle is different

The fiber laser marking machine uses a laser beam to make permanent marks on the surface of various materials. The effect of marking is to expose the deep chemical substances through the volatilization of the surface components, or to "hand-carve" the imprint according to the physical state changes of the surface components caused by the solar energy, or to indicate the pattern to be etched according to the solar energy burning part of the chemical substances. Design. Text. Barcodes and other types of graphics.

Ultraviolet laser marking machine is a series of laser marking machines, so the basic principle is similar to that of laser marking machine, all of which use laser beams to make permanent marks on the surface of various materials. The effect of marking is to immediately cut off the molecular chain of the substance according to the medium and short wave laser (different from the volatilization of the surface chemical substances caused by the long wave laser and leak out the deep chemical substances), revealing the patterns and texts to be produced and processed. Etching.

3. The processing method is different

Fiber laser marking machine uses laser to carry out physical marking method. Laser physics production and processing methods are mainly to carry out production and processing of the appearance of commodities and materials, which belong to heat treatment. The UV laser marking machine uses cold drawing, an organic chemical production and processing method, and the laser organic chemical production and processing method is to use laser deep-level commodity raw materials for production and processing.

4. The main uses are different

Fiber laser marking machines are basically suitable for laser marking of various metal surfaces. Because of the heat generated by its light, it is not suitable for high-precision marking of materials. like:

Widely used in integrated circuit chip integration ic. Computer accessories. Industrial production of rolling bearings. Watches. Electronic devices and communication equipment. Aerospace components. Various auto parts. Packaging materials, jewelry, cigarettes, national defense, etc. on the spot text and graphic marking, mass production line work.

Ultraviolet laser marking machine: It is especially suitable for the top sales market of meticulous production and processing. like:

A. Skin care products, medicines, auxiliary materials and other fiber materials have very good surface marking effect on plastic packaging bottles, good cleaning power, better than inkjet printer coding software, and zero pollution;

B. Marking and area of flexible pcb board; monocrystalline silicon wafer micro-plate. Buried hole production and processing;

C. LCD liquid crystal panel QR code marking. Glass container surface punching. Coating marking on metal surface layer. Plastic function keys. Electronic components. Gifts. Communication equipment. Decorative building materials, etc.

So, what are the advantages of fiber laser marking machine and UV laser marking machine?

1. Advantages of fiber laser marking machine:

A. Light is cost-effective

The laser beam is thin, the consumption of raw materials for production and processing is small, and the thermal hazard area of production and processing is small. The markings on the logo are permanent and not easily faded due to environmental hazards. The marked pattern is exquisite. Beautiful and generous.

B. Long service life

Fiber laser technology can greatly extend the service life of machinery and equipment (compared to DPSSL), which can reach 100,000 hours.

Fiber lasers also have other advantages: because the laser material of fiber lasers is a waveguide material, so high efficiency; fiber lasers and fiber transmission system software are connected easily and efficiently; the fiber core can be made very thin and can achieve high power; fiber arrays The thermal function is good, so the conversion efficiency of the fiber laser is high, and the threshold is extremely low; the output light wavelength of the fiber laser is very wide, from 400 to 3400nm, which can be used for various needs. National defense, diagnosis and treatment and other aspects are very promising application prospects.

C. Green environmental protection

The photoelectric high efficiency of the fiber laser marking machine is up to 28%, which greatly reduces the functional loss during work and saves the operating cost.

The fiber laser marking machine has zero pollution. No noise.

D. low cost of maintenance

Because the fiber laser has no optical lens in the resonator, it has the advantages of adjustment-free, maintenance-free and high reliability, which is unmatched by traditional lasers.

2. Advantages of UV laser marking machine:

A. Can carry out ultra-fine marking and material marking

Ultra-fine marking and material marking can be accomplished with UV lasers because of the small hot spots and the small thermal hazard zones in production and processing. It is the first choice for customers who have more standards for the actual effect of marking.

B. The cold drawing method is more effective

Ultraviolet laser production processing becomes cold drawing, due to the higher energy molecular structure of the ultraviolet light quantum, which immediately separates the molecular structure on the alloy or non-metallic material that must be produced. As everyone knows, this kind of separation will cause the molecular structure to be separated from the raw material. This kind of working method is not easy to generate heat.

On the basis of cold drawing, the effect of producing and processing commodity raw materials will achieve faster performance and a faster development trend. Since the probability of raw material damage is reduced to one percent when using cold laser production and processing, the advantages of production are reduced. Get all application software.

C The total thermal damage area of the UV laser marking machine is very small, and it is not easy to generate thermoelectric effects, and it is not easy to cause the problem of burning raw materials.

D UV lasers are dominated by low output power, with stable characteristics, small size and low functional loss.