“UV curing light source is widely used in printing industry, circuit board industry, Electronic medical treatment, instrument packaging, Display screen and so on. However, most of the UV curing light sources in these fields are still traditional gas discharge lamps. Some UV lamps in traditional lamps also contain heavy metal materials such as mercury, which pollute the environment very much.

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UV curing light source is widely used in printing industry, circuit board industry, electronic medical treatment, instrument packaging, display screen and so on. However, most of the UV curing light sources in these fields are still traditional gas discharge lamps. Some UV lamps in traditional lamps also contain heavy metal materials such as mercury, which pollute the environment very much. Second, this traditional UV lamp consumes high energy and has a lifespan of only 800 to 3000 hours in use, and needs to be replaced frequently. With the vigorous development of the LED industry, UVLED chips have emerged. The emergence of UVLED chips can just solve these problems very well.

UVLED has many advantages, as follows:

1. The life of UVLED can reach 20,000 to 30,000 hours, which is longer than that of mercury lamps.

2. UVLED does not contain mercury, which is environmentally friendly and pollution-free.

3. The overall calorific value of UVLED is small and can be lit instantly. The overall energy consumption is low.

4. The UVLED emits high-purity 365nm monochromatic ultraviolet light, which is a cold light source and has no thermal radiation; the temperature of the workpiece only rises by about 3 degrees, and the workpiece will not be deformed.

5. The small size of UVLED makes it easy to integrate it into an automatic assembly process, or use it as a complete desktop system. In this way, the volume of the uvled module is only 1/5 of the traditional curing machine.

6. The energy of UVLED is highly concentrated in a certain ultraviolet spectrum with effective curing effect, which shortens the curing time to 0.5 to 5 seconds, and the curing time is fast.

Due to the above six characteristics, UVLED will cause a revolution in the light source of the UV curing industry. However, it is still difficult to promote UVLED on a large scale. The reasons are as follows: ① The optical power density of UVLED is not enough, and the UV ink cannot be cured quickly; it needs to be continuously upgraded to higher-power UVLED chips. ②At present, the cost of UVLED is too high, and the reliability is greatly affected. ③The heat dissipation of high-power UVLED is insufficient, which affects the reliability of the light source module. Currently in order to improve reliability. UVLED manufacturers introduce UVLED vacuum furnaces during welding. Through the UVLED vacuum welding process, the void rate can be reduced to less than 3%, which effectively improves the reliability of high-power UVLED welding. At the same time, by designing a heat dissipation substrate with water cooling, fast and efficient heat dissipation also improves the reliability of UVLED for long-term use.

Several domestic UVLED companies have purchased the vacuum welding furnace of Beijing Zhongke Comrade Technology, and have achieved good results. If you have questions about welding, you can communicate more about the UVLED vacuum welding process.