Guangmai Technology is professional in making the UV UVA 395nm 400nm 405nm 6868 SMD LED for 3D Printing.
UV light curing principles:
As a kind of curing equipment, the curing principle of UV curing machine is that the photoinitiator is triggered after UV coating is irradiated by the UV curing machine, and free ion groups or ions are generated. These free radicals or ions are combined with the prepolymer or unsaturated monomer. The double bonds initiate a cross-linking reaction to form monomer genes. These monomer genes begin to react in a chain reaction to form polymer solid off-molecules, which is a complete solidification process.
The application of uv light curing machine is reflected in:
1. Printing: Widely used in screen printing, lithography, letterpress printing, self-adhesive trademarks, metal nameplates, PC, PVC, ABS, PS, acrylic, Tedlon, glass, ceramics, electronic parts, single-sided Circuit boards, etc.
2. Coating: bright coating on wood surface, gloss on paper, plastic floor tiles, PU skin coating, surface coating on optical fiber cable, etc.
3. Adhesion: Adhesion of CHIP parts of circuit board, various electronic parts, adhesion of glass, liquid crystal film, and adhesion of terminal sealing compound.
4. Note type: decorative colored dishes, decorative accessories (buttons, brooches, hair clips, belt buckles, etc.).
1. The influence of UV curing machine energy
The main condition for deep curing of ultraviolet radiation is that the molecules must absorb light quantum with sufficient energy to become excited molecules, decompose into free radicals or ions, and make unsaturated organics undergo chemical reactions such as polymerization, grafting, and crosslinking to achieve the purpose of curing. . The energy of the UV curing machine of the photoinitiator in the supplied UV coating exceeds or falls short of its required energy.
I don't know the UV curing machine energy required by the photoinitiator, such as blindly over-supply. This approach not only wastes energy, but also causes the negative effects of excessive curing, such as explosion, reverse curing reaction, etc.
The energy of the supplied UV curing machine must be moderate, that is, it cannot be excessive or insufficient, so as not to cause complete curing.
2. The influence of UV coating thickness
The thickness of the UV coating plays a key role in the effect of UV curing. If the coating is too thick, the drying time is relatively long under the same power light source. On the one hand, it affects the drying of the UV coating, and on the other hand, it will cause the surface temperature of the substrate. Too high will cause deformation of the substrate; too thin a coating will result in poor surface gloss of the product. In addition, UV coating thickness coatings need to be properly formulated under different conditions such as hue, temperature, curing speed, and substrate surface.
3, the impact of curing distance
According to the different curing substrates, the UV lamp generally has a distance of about 10-15mm. The curing distance must be adjusted appropriately with the substrate, coating, and the irradiation power of the UV curing lamp.
4, the impact of UV light curing speed
Depending on the substrate, coating, curing distance, etc., properly adjust the curing speed of the equipment. If the curing speed is too fast, the UV coating on the surface of the substrate is sticky or the surface is dry but not dry; if the running speed is slow, the surface of the substrate will age.
5, the impact of the working environment
When the viscosity of the UV coating changes greatly due to temperature, the room temperature should be adjusted. Generally, 15-25°C is more appropriate, and it should not be exposed to direct sunlight during curing.
Electrical Specs:
Package Size:
Application
About Guangmai
Shenzhen Guangmai Technology Co., Ltd. was established in 2009 and is a council member of Shenzhen Electronics Chamber of Commerce and Lighting Semiconductor Industry Promotion Association. The sales department of Shenzhen Guangmai Technology Co., Ltd. is located in Baoan Fuyong Hi-tech Zone, Shenzhen, focusing on the R&D, production and sales of high-quality light-emitting diode products. Now it has its own brand XINGLIGHT. The company has a modern R&D base and dust-free factory in Shenzhen. The electrostatic production workshop has the internationally advanced ASM complete set of fully automatic photoelectric manufacturing equipment, with a monthly capacity of 750KK. It has realized the full automation of the whole process of die bonding, wire bonding, dispensing, baking, spectroscopy, and taping, and has passed 1S09001 The company’s quality management system certification adopts strict process control to ensure the reliability of product quality. So far, Chengxingguang has formed three major LEDF product categories with indicator LEDs, lighting LEDs and backlight LEDs. The products are in compliance with the EU RoHS environmental protection directive, and have passed many international certifications such as RoHS, REACH, and SGS. It is widely used in many fields such as digital communication products, portable electronic products, electronic display screens, LED lighting fixtures, and automotive electronics.
Datasheet:
For more details, please feel free to contact with Guangmai Tech directly.
You can download the datasheet of UV UVA 395nm 400nm 405nm 6868 SMD LED for 3D Printing from the head of this page.
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