Cómo proteger la máquina de corte por láser de la humedad

Video

Laser Cutting Machine

The laser cutting machine is to focus the laser light emitted from the laser into a high-power density laser beam through the optical path system. The laser beam irradiates the surface of the workpiece to make the workpiece reach the melting point or boiling point. At the same time, the high-pressure gas coaxial with the beam blows away the molten or vaporized metal.

As the relative position of the beam and the workpiece moves, the material will eventually form a slit, to achieve the purpose of cutting.

Laser cutting processing is to replace the traditional mechanical knife with an invisible beam. It has the characteristics of high precision, fast cutting, not limited to the cutting pattern, automatic typesetting, saving material, smooth cutting, and low processing cost. It will gradually improve or replace it. Traditional metal cutting process equipment. The mechanical part of the laser cutter head has no contact with the workpiece, and will not scratch the surface of the workpiece during work; the laser cutting speed is fast, the incision is smooth and flat, and generally does not need subsequent processing; the cutting heat affected zone is small, the plate deformation is small, and the slit is narrow ( 0.1mm~0.3mm); the incision has no mechanical stress, no shearing burr; high processing accuracy, good repeatability, and no damage to the surface of the material; CNC programming, can process any plan view, can cut the entire board with a large format, without Opening the mold saves time and economy.

Principle

Laser is a kind of light, and like other natural light, it is produced by atomic transitions. However, it is different from ordinary light in that the laser only relies on spontaneous emission for a very short period, and the subsequent process is completely determined by the excitation radiation. Therefore, the laser has a very pure color, almost no divergent directivity, and extremely high luminous intensity. And high coherence.

Laser cutting is achieved by applying high power density energy generated by laser focusing. Under the control of the computer, the laser is discharged through pulses, thereby outputting a controlled repetitive high-frequency pulsed laser to form a beam with a certain frequency and a certain pulse width. The pulsed laser beam is guided and reflected by the optical path and focused by the focusing lens group. On the surface of the processed object, a small, high-energy-density light spot is formed. The focal spot is located near the surface to be processed, and the processed material is melted or vaporized at an instant high temperature. Each high-energy laser pulse instantly sputters a small hole on the surface of the object. Under computer control, the laser processing head and the processed material perform continuous relative movement according to the pre-drawn graphics, so that the object will be processed into The shape you want.

The process parameters and motion trajectory during slitting are controlled by the numerical control system, and the slag at the slitting is blown away by a certain pressure of auxiliary gas.

Moisture Protection

1. Reduce Indoor Humidity

●Activated Carbon is Moisture-proof And Dehumidifying

Activated carbon has many uses. It can not only dehumidify but also purify the air and remove peculiar smells.

The main ingredients of dehumidification boxes sold in supermarkets are calcium fluoride and activated carbon. This is a good dehumidification method, but this dehumidification method is only suitable for small spaces, such as placed in the control cabinet of the cutting machine, electrical cabinet, can effectively absorb moisture, and can effectively remove odors. The use of activated carbon to prevent moisture in humid weather can reduce the environmental humidity in the control cabinet and electrical cabinet, and reduce the probability of equipment failure due to humidity.

●In Fine Weather, Open The Windows to Breathe

When it is raining outside or the weather is overcast, it is best not to open the window to prevent the hot and humid air from entering the house. When the weather is fine, you can selectively open windows for ventilation to reduce indoor humidity.

Selectively open windows for ventilation.

●Quicklime Dehumidification

According to data, every 1 kg of quicklime can absorb about 0.3 kg of moisture in the air. Quicklime can absorb moisture very well. If the room is humid and the ground is condensed, quicklime can also be put in a cloth bag and placed at the corners of the workshop to achieve the effect of rapid moisture removal and drying.

Quicklime in bags.

● Air Conditioning Dehumidification

In humid weather, the effect of air conditioning dehumidification is also very significant. Turn on the air conditioner, adjust to the dehumidification function option, and then run the air conditioner normally. In this state, the air conditioner is equivalent to a dryer, which can reduce the indoor environmental humidity and effectively ensure that the indoor air humidity is not too high, which is very conducive to the stability of the equipment run.

● Clean The Dust in The Electrical Cabinet Regularly to Achieve The Purpose of Dust Removal And Moisture Removal

Dust and dust themselves are also very easy to absorb moisture in the air, and regular dust removal of the electrical cabinet can also effectively reduce the environmental humidity of the cabinet.

2. Water Vapor Appears on The Outside of The Electric Cabinet, don’t Start it Immediately

If water vapor appears on the outside of the electrical cabinet, wipe the water vapor on the surface of the electrical cabinet first, turn on the air conditioner (turn on the dehumidification function) for half an hour, and then turn on the power of the equipment. Observe to ensure the stable operation of the equipment.

3. Regular Inspection

Regularly check the drainage of air compressors, filter elements, refrigeration dryers, and other components. Avoid the risk of contamination of the cutting head lens and the air pipeline of the machine tool due to the failure of the air compressor's drainage function.

In humid weather, please pay special attention to anti-static and lightning protection. Workers must not wear slippers. Always check whether the ground wire is grounded.