Colored paint UVC curing process

Abstract

According to the colored paint UVC curing technology, automatic curing is achieved through curing equipment, the curing equipment comprises a machine box, a product conveying roller used for conveying a paint spraying workpiece into the curing equipment for ultraviolet curing and an ultraviolet light source set used for emitting ultraviolet light to cure the paint face of the paint spraying workpiece, and the ultraviolet light source set comprises a UVC light source and a UVA light source; the paint surface of the paint-sprayed workpiece is jointly cured through a UVC light source and a UVA light source, and the ultraviolet wavelength of the UVC light source is within the range of 250-260 nm; the ultraviolet wavelength of the UVA light source is within the range of 395-420 nm, the UVC light source is used for colored paint surface layer curing, the UVA light source is combined for colored paint deep layer curing, the curing speed of the colored paint can be guaranteed, the curing quality of the colored paint can also be guaranteed, and after the colored paint is cured, the appearance of a paint surface yellowing image is few.

Description

technical field [0001] The invention belongs to the technical field of color paint curing technology, and in particular relates to a color paint UVC curing technology. Background technique [0002] Colored paint, that is, colored paint, as opposed to varnish, is a paint made by adding various pigments and fillers to the paint to impart color to the coating film and block light transmission, or to enhance the mechanical and chemical properties of the coating film. , when applied to the workpiece, the formed coating film can cover the workpiece and have protection, decoration or special technical properties. This kind of coating is called color paint. [0003] Compared with varnish, color paint is more difficult to cure, because it blocks light from passing through, so when using ultraviolet light to cure, it needs to use ultraviolet light with strong penetrating ability to cure the inside of color paint. [0004] In the traditional ultraviolet curing process, the UVA light s...

AI Technical Summary

Problems solved by technology

[0005] However, the UVA light source will generate a lot of heat when it is working, and most of its electric energy is lost in heat, and only a small part is used for the generation of ultraviolet light. Therefore, the working efficiency of the UVA light source is extremely low, and a higher power UVA light source is required to produce Sufficient ultraviolet light intensity, the energy consumption of using UVA light source for paint surface curing is very high, and the curing equipment also needs to be equipped with corresponding air cooling equipment and liquid cooling equipment to cool down the curing environment and curing equipment respectively. General curing equipment It is necessary to equip cooling related equipment according to the power of UVA light source according to the power ratio of 10:1. Therefore, it needs a large energy loss in the color paint curing process of the workpiece. For the user, the curing cost is very high

[0006] In addition, when directly using UVA light source for color paint curing, since the curing speed of the color paint is required to be accelerated, the working power of the UVA light source is required to be continuously increased, and the corresponding curing environment temperature is also continuously increased, which will cause yellowing of the paint surface after the product is cured. Phenomenon, affecting the curing quality of the product

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