Precautions for welding and cutting equipment

Laser welder 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 welding machine is in normal working condition, after two weeks of continuous operation or stop using for a period of time, the components in the optical path such as YAG rod, dielectric diaphragm and lens protection glass should be inspected before starting. Each optical component has no abnormal phenomena such as dust pollution and mildew. If any of the above phenomena are present, it should be treated in time to ensure that the optical components are not damaged by strong laser irradiation. (If the equipment is used in a clean environment, 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 laser concentrating cavity assembly. The conductivity of the circulating water should be checked once a week to ensure that the conductivity is 30.5 MW?·cm, which must be replaced once a month. For circulating deionized water, the conductivity of newly injected pure water must be 32 MW?·cm. Always observe the color change of the ion exchange column in the cooling system. Once the color of the resin in the exchange column is found to be dark brown or even black, the resin should be replaced immediately.

3) Welding equipment operators can often check the laser output spot with black paper. Once the spot is uneven or the energy is reduced, the cavity of the laser should be adjusted in time to ensure the beam quality of the laser output.

Note: The adjustment of the laser welder must be carried out by specially trained personnel. Otherwise, other components on the optical path may be damaged due to the misalignment or deviation of the laser.

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