A good UV curing machine is mainly composed of UV lamp, lampshade, transformer (ballast), capacitor (trigger). At present, UV lamps on the market are divided into high pressure mercury lamp, metal halide lamp and LED lamp.

 

 

 

 

(1) selection of UV lamp power. The power of UV lamp is the radiation energy of UV lamp, also known as the penetration. First of all, it must meet the UV ink (glue) absorption spectral wavelength and power density requirements. If the wavelength of the UV lamp is not right, even if the illumination time is long and the times of passing through the UV curing machine are more, the product can not achieve curing. Generally, the power of UV lamp should meet the requirements of 80-120w / cm, but the higher the power is, the higher the heat is. Therefore, the power selection of UV LED curing machine should be based on the curing material and curing speed. The maximum service life of UV lamp is generally 800-1000 hours, and it should be replaced immediately after reaching, because the intensity of UV lamp is weakened during this period, which affects the curing effect. The types of reflector include focusing type, non focusing type and multi surface reflection type. The focus type is usually used.

 

 

 

The structure of the reflector is characterized by concentrated UV energy and high curing efficiency, which is conducive to curing the thicker rubber layer and completely curing the deeper glue. In this regard, attention should be paid to the material selection and shape of the reflector. Aluminum must be used instead of iron or stainless steel in material selection to save cost, because stainless steel plate will turn black under high temperature, which not only plays the role of reflecting light, but also absorbs light. The best reflection effect is the mirror aluminum oxide plate, the reflectivity can reach more than 80%, greatly improving the utilization of ultraviolet.