The high temperature and high humidity environment may cause harm to the laser
In the high temperature and high humidity season, the ambient temperature and humidity of the laser are increased, and the use of the laser environment will be affected to different degrees. According to the experience of laser use, long-term use of lasers in a high temperature and humid environment will accelerate the aging of the internal components of the laser, and even lead to condensation, causing irreversible damage to optical devices and electronic devices.
How does condensation occur on lasers?
When the external ambient temperature and humidity are too high, the water in the air is saturated. When the surface temperature of the laser is lower than the dew point temperature of the nearby air, the surface will condense the water in the air and adhere to the laser, resulting in condensation.
The condensation phenomenon does not necessarily occur only on the outer surface of the laser, and the components and optics inside the laser are also at risk of cold condensation.
The influence of condensation environment on laser
Cause short circuit and damage to electrical components
After the laser condensation phenomenon, electrical components are prone to short circuit, there are many circuit boards and electrical modules inside the laser, short circuit will lead to circuit board and module damage, serious will lead to the entire laser scrap.
Resulting in laser output power and spot pattern changes and even optical lens damage
There are many reflection and transmission optical devices used to conduct the laser inside the laser, when these optical devices occur condensation phenomenon laser through the cooling water, the spot pattern will be seriously deformed, affecting the processing effect and efficiency, and the condensation of dew on the lens itself is also very easy to be damaged in the process of conducting the laser.
How to prevent laser condensation
The condensation phenomenon is caused by the laser under the action of the external chiller temperature is low and the ambient temperature difference is large and the air humidity is high, so controlling the ambient temperature and humidity can effectively avoid the occurrence of laser condensation phenomenon, the specific practice is as follows:
1. Provide a separate air-conditioned space for the laser to reduce the dew point temperature. Make sure the temperature of the laser is close to the ambient temperature. (such as the laser external chiller set temperature of 25 degrees, the ambient temperature control of 23-27 degrees is appropriate)
2. If the ambient humidity is too high, install a dehumidifier in the laser running space to reduce the ambient humidity. (The recommended humidity is less than 50%)
3. The set temperature of cooling water outside the laser can be adjusted by referring to the temperature, humidity, and dew point table.
The number crossed against the corresponding humidity in the ambient temperature indicates the dew point temperature and the cooling system of the laser needs to be set at a temperature higher than the dew point temperature, which can effectively avoid condensation inside the laser.
other matters needing attention
In addition to the ambient temperature and humidity, in order to ensure the stable operation of the laser, the cleanliness of the environment and the protective gas are also required. Providing a clean operating environment for the laser helps to protect the optics of the laser.
Xi'an Guosheng Laser Technology Co., Ltd. is a high-tech enterprise specializing in R&D, manufacturing, and sales of automatic laser cladding equipment, high-speed laser cladding equipment, laser quenching equipment, laser welding equipment, and 3D printing equipment. Founded in 2015, Guosheng Laser has established Xi'an Aerospace R&D and Design Center and Weinan Production Base, the company processes a workshop area of 2,000 m2, the quantity of employees is 30, including 5 senior research staff and engineers, which is capable of providing a complete set of solutions for laser additive manufacturing technology with integrated structure and function.