Date: 2019-12-12
The emergence of UVLED is a revolutionary change in the UV curing industry. Its constant light intensity, excellent temperature control, environmental friendly and portable, it is widely used in communication, electronics, optics, printing, medical and other fields.
UV curing, mainly using mercury lamp irradiation as the mainstream of the production process, not only pollution of the environment, and the traditional UV lamp high energy consumption, short service life.
UVLED is widely used in all walks of life is reasonable, UVLED has a great advantage over UV curing, its emergence is very necessary.
Firstly, the service life of the UV curing system is longer than that of the traditional UV curing system of 800-3000 hours, up to 20,000 to 30,000 hours.
Secondly, the traditional mercury lamp light, the bulb contains mercury, improper use will produce serious pollution to the environment, and even affect people's life and health.
And LED USES semiconductor light, does not contain harmful substances, will not cause pollution to the environment, more environmental protection.
In addition, in the traditional mercury lamp, the ultraviolet ray will make the surface temperature of the irradiated product as high as 60-90 °C, which is easy to cause product displacement and deformation. However, when LED is in use, no infrared ray will be emitted, and the surface temperature of the irradiated product will rise below 5°C, which will not radiate to the product, making the product performance more stable.
Finally, when the output of traditional mercury lamp, the light energy is limited by the channel, while the LED adopts high-power LED chip and advanced optical design, which can make the ultraviolet light output reach the irradiation intensity of 8600mW/m2, which is not affected by the increase of the channel. The irradiation intensity and precision are far higher than that of mercury lamp, thus shortening the irradiation time of operation and improving the production efficiency.
At the same time, regardless of the effective lighting of traditional mercury lamps, they need to continuously light the lamp to work, the power is always in the consumption state, while the UVLED mode only consumes the power when irradiation, and the power consumption is almost zero when standby, low energy consumption, more energy saving.
In addition, the volume of UVLED curing machine is very small, only 1/5 of the size of the traditional curing machine, easy to carry, easy to install, greatly save the occupied area of the operation site, make the operation more smooth.
To sum up, UVLED is the future development trend, but UVLED also has some shortcomings at present, its optical power density is not enough, affect the curing speed of UV ink, so it needs to constantly upgrade more high-power UVLED chip, high cost, light source module reliability is poor, which makes UVLED in the promotion of a very difficult.
Welding and UVLED chip packages right vacuum reflow soldering process appears, it can reduce the power UVLED chip empty rate to 3%, at the same time if used in the design of water heating substrate design, make a radiator cooling more fast and efficient, thus greatly improve the reliability of high-power UVLED, for UVLED smoothly in many areas of application in the future the way.
Therefore, the emergence of vacuum reflow welding technology for UVLED chip packaging and welding is a boost for the development of UVLED industry. Only when the vast demand market is matched with exquisite technology can there be a broad development prospect.
Welding current, UVLED chip packages of vacuum reflow soldering process has been UVLED several outstanding enterprises at home and abroad to introduce and use, and good results have been achieved, the future will be the welding UVLED chip packages vacuum reflow soldering process is steep, comrade TORCH of UVLED vacuum soldering furnace after many UVLED companies use validation, has proved to be perfect carrier of the process.
Through the feedback from chip manufacturers, material manufacturers, equipment companies, design companies, manufacturing plants and customers, a chain of rapid feedback is built to improve the process and improve the reliability of products.
Will make the development of UVled industry.
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