Non-contact marking method and the cause of heat

Author: Correct Pack -Laser Marking Machine Manufacturer

Laser marking machine technology belongs to a non-contact marking method, which has many incomparable advantages compared with traditional processing methods. Now lasers are widely used to mark hardware and keyboards, and lasers are used to mark materials such as bamboo and wood. Engraving and making works of art, such as it adopts computer control technology, high efficiency, fast pace, fine laser marking, laser marking machine laser marking features: fast speed, smooth incision, generally no need for subsequent processing, small heat-affected zone of cutting , the plate deformation is small, the slit is narrow (0.1mm~0.3mm), the incision has no mechanical stress, no shear burr, high processing accuracy, good repeatability, no damage to the material surface, NC programming, can process any plan, and can Cutting the entire board with a large format, no need to open a mold, economical and time-saving. At present, in the total sales of laser processing systems in the world, laser marking machines are second only to laser cutting machines, accounting for the second place. In recent years, the sales volume of laser cutting machines is close to that of laser cutting machines, each accounting for about 1/3 of the total, while China is the opposite. , the sales of laser marking machines have always accounted for more than 50% of domestic laser processing sales, occupying the domestic market in a large range, and greatly opening up the industrial field of application. The application area is much wider, and the materials of the marking objects can be various metals and non-metals. I believe that in the next few years, domestic laser marking machines will better serve the processing market by virtue of their own advantages and rapidly improve the competitiveness of the market. As the fastest growing country in the rise, China has become the focus of the world economically. The same is true for the production market of domestic laser marking machine manufacturers. Laser processing equipment has developed very well since entering the Chinese market. It is through The laser beam evaporates the surface material of the workpiece to expose the deep material, or causes the chemical and physical changes of the surface material to engrave traces. Due to the simple processing of laser equipment and exquisite effects, laser technology has been widely used in China.

The laser marking machine uses laser beams to mark permanent marks on the surface of various substances. The effect of marking is to expose deep substances through the evaporation of surface substances, or to cause chemical and physical changes in surface substances through light energy."carve"There are traces, or part of the material is burned away by light energy, and the pattern and text to be etched are displayed. The problem of marking depth of laser marking machine has been troubled by many customers. It is one of the most common problems in laser engraving. Next, Tianxiong Laser will introduce the reason why the marking depth of laser marking machine is not deep enough. There are the following points: . 1. Whether the laser output power of the laser marking machine meets the requirements.

2. Whether the cut-off power of the acousto-optic switch meets the requirements. 3. Whether the optical path adjustment is accurate. 4. Whether the position and direction adjustment of the beam expander is accurate.

5. Whether the lens surface of the laser marking machine is polluted or not. 6. Whether the workpiece surface is on the focal plane. 7. Whether the 28V output DC voltage of the laser power supply has dropped, resulting in a decrease in the laser output power.

Why does the motor heat up? In fact, any motor will heat up, but the degree of heat generation is different. Generally, the degree of heat generation of metal laser marking machines is very low, and generally it will not have any impact, but it is different for laser marking machines. The marking machine is easy to heat up during work, which is also determined by its performance. You should know that the stability of the current directly affects the operation of the motor. If the current is not a standard DC or sine wave, harmonic losses will also occur. There is a hysteresis eddy current effect, and loss will also occur in an alternating magnetic field, and its size is related to material, current, frequency, and voltage, which is called iron loss. Both copper loss and iron loss will be manifested in the form of heat, which will affect the efficiency of the motor, and more electrical energy will be converted into heat energy. Therefore, in the laser industry, if the current is unstable, the metal laser will be greatly reduced. The working efficiency of the marking machine leads to a serious problem of heating the motor of the metal laser marking machine. If it is not handled properly, it may even cause the motor of the metal laser marking machine to burn out, and the whole is in a paralyzed state. Therefore, Minsheng Laser reminds For the majority of customers, when the motor heats up, it needs to be handled carefully to avoid unnecessary losses. In fact, any motor will generate heat, but the degree of heat generation is different. Generally, the degree of heat generation of metal marking machines is very low, and generally it will not have any effect, but it is different for laser marking machines, because the laser marking machine is in the working process. It is easy to generate heat, which is also determined by its performance.

Everyone should know that if the current is not a standard DC or sine wave, harmonic loss will also occur. The iron core has a hysteresis eddy current effect, and loss will also occur in an alternating magnetic field. Its magnitude is related to material, current, frequency, and voltage. It is called iron loss, copper loss and iron loss will be manifested in the form of heat, which will affect the efficiency of the motor, and more electric energy will be converted into heat energy, which will greatly reduce the working efficiency of the laser marking machine. Zhuhai Correct Pack is a well-known laser equipment manufacturer in China. It has been focusing on the development and production of laser equipment for 12 years, providing customers with a complete set of laser equipment solutions, and creating cost-effective laser equipment. Main business: UV, co2, fiber laser marking machines, laser radium engraving machines And other cost-effective laser equipment, national service hotline: 400-0098-266https://www.xmslaser.com/.