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Warning: Direct high-intensity laser irradiation can cause serious damage to human skin, in particular blinding the eyes. Debugging operators must have common knowledge of laser safety protection. Special laser protective glasses must be worn for the wavelength of 1.064mm during work.
Note: When strong laser light is directly irradiated to flammable materials such as wood, an open flame will be generated. During the debugging process, a black metal material with good absorption performance should be placed on the laser output light path as a beam terminator to prevent fire accidents.
Note: The adjustment of the laser cutting machine must be carried out by specially trained personnel. Otherwise, other components on the optical path may be damaged due to misalignment or misalignment of the laser cutting machine.
The main contents of the maintenance and maintenance of the laser cutting machine include checking the quality of cooling water, cleaning the water tank and pipeline, and checking whether the protection circuit operates normally.
In the case of frequent use, water quality must be checked once a week to ensure the quality of the cooling medium. The inspection method is to place the multimeter in a 2 MW resistor file. The metal exposed parts of the two pen measuring ends are inserted into the cooling water in parallel at an interval of 1 cm. The resistance reading at this time should be at least 250 kW. If the reading is lower than this value, the cooling water should be replaced immediately. 2 Inspect and protect the interlocking circuit stainless steel electrode The cooling system is specially designed for the characteristics of the laser welding machine, and has designed the over-temperature sound alarm, over-temperature chain, flow switch interlock, liquid level protection chain and other protective measures. Always check the above protection circuit during use to ensure that its function is normal and effective. Inspection work can be carried out when changing water. Precautions Under high temperature or relatively humid environment, during the operation of the laser cutting machine, attention should always be paid to observe whether the “condensation†phenomenon caused by the low water temperature occurs in the cooling water circulation pipe or the laser condenser cavity. The appearance of the YAG crystal will cause damage to the end face, resulting in a drop in output power or even no light. Use caution. If "condensing" occurs, use of the laser welding machine should be stopped immediately. After the moisture on the surface of the condenser cavity is naturally dried, the condition of the YAG optical surface is re-examined to determine whether the YAG rod is to be cleaned. Only after checking all normal conditions can the machine be turned on again. Before starting up, pay attention to adjust the lower limit setting temperature of the high temperature controller.
During normal operation, attention should also be paid to observing whether the frost on the titanium tube of the refrigeration system is frosted. If frost occurs, it may be due to insufficient freon in the refrigeration system. Immediately ask relevant professionals to supplement and check for leaks.
Daily maintenance of laser cutting machine Note: Laser cutting machine maintenance must be carried out by specially trained personnel, otherwise it is prone to serious man-made damage.
1) In order to ensure that the laser cutting machine has been in normal working condition, after two weeks of continuous operation or when it is stopped for a period of time, the components in the optical path such as YAG rods, dielectric diaphragms, and lens protection glasses shall be checked first before starting up. The optical components do not have any abnormal phenomena such as dust contamination or mildew. If any of the above phenomena should be dealt with promptly to ensure that the optical components will not be damaged under strong laser irradiation. (If the use environment of the equipment is relatively clean, the above inspection can be extended to one month or longer.)
2) The purity of the cooling water is the key to ensure the laser output efficiency and the life of the condenser assembly of the laser cutting machine. During the use, the conductivity of the inner circulating water should be checked once a week to ensure that its conductivity is 30.5 MW·cm and must be replaced every month. For deionized water with internal circulation, the conductivity of newly injected pure water must be 32 MW·cm. Observe the color change of the ion exchange column in the cooling system at any time. Once the color of the resin in the exchange column is changed to dark brown or even black, replace the resin immediately.
3) The equipment operator can often check the output of the laser cutting machine with a black image paper. Once a phenomenon such as uneven light spot or energy drop is found, the laser cavity cutter should be adjusted in time to ensure the laser output beam quality. The typical spot image is as follows: Adjusted spot The unadjusted spot The adjustment of the laser cavity [Unexpectedly, nothing can not be done, change your style from now on. Opening the Chinese cutting machine trading network is equivalent to opening up your wealth road, come and click on the website now! Reference: Cutter Editor: kswkfhl
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