Water Transfer Printing (WTP) is an advanced surface decoration technology that transfers patterns from a…
Vacuum Metallization Coating Line
Vacuum metallization is popular technology to produce metal like products while the raw material is plastic. To make the change we will need vacuum coating machine and painting line system to work by specific process. This coating line is widely used in plastic industry such as perfume caps, phone covers, car parts and lots of decoration products.
Plastic vacuum metallization process
ABS plastic: Load to fixture→Load to painting line→Electrostatic de-dust→Preheat→UV painting→Leveling 15m(RT)→IR flash off 32m(65°C±3°C)→UV curing→cooling→Vacuum coater
PP plastic: Load to fixture→Load to painting line→Electrostatic de-dust→Flamming→Electrostatic de-dust→PP solvent painting→Flash off→UV painting→Leveling 15m(RT)→IR flash off 32m(65°C±3°C)→UV curing→cooling→Vacuum coater
Vacuum Coater – the core part of plastic metallization system. It’s technically known as vacuum evaporation, pvd coating or vacuum plating, it’s revolutional machine comparing traditional water plating equipments. Zero environment pollution but same quality of water plating, vacuum machine is standard choice of plastic metallization in mordern world.
Vacuum coating machine main parameter
| Mainly Application | Plastic decorative coating | |||
| Film Type | Semitransparent film, non-conducting film, gold, silver, red, blue, green, purple, seven color, etc. | |||
| Power source Type | Thermal evaporation power, ion bombard power, RF power | |||
| Vacuum chamber structure | Vertical double/single door, horizontal single door, pump system postposition | |||
| Ultimate vacuum | 8.0*10-3Pa | |||
| Vacuum system | Diffusion pump +Roots pump +Mechanical pump +Holding pump | |||
| Pump time | Pump from atmosphere to 5.0*10-2,6 minutes | |||
| Workpiece motion mode | Public rotation/Frequency control | |||
| Control mode | Manual/Automatic all-in-one mode, Touching screen+PLC | |||
| compress air | the pressure is 5~6kg. | |||
| water-cooling system | Cool water 5~25 supplier,the flux is 5T/H and the pressure is 0.15~0.25MPa. | |||
| Features | Bright delicate aluminum coating, coating speed, simple operation, equipment stability, and the production of high-grade plastic decoration products indispensable a necessary equipment. | |||
Vacuum coating line
The most important part to give products shinning and long life cycle with high quality physical properties such as anti scratch and environment change etc. high quality painting treatment decides the final product quality.
There will be different choice for coating line configuration depends the paint selection. You must choose the suitable base coat and top coat. In case you selected the incorrect paint, contacts between coating layer and plastic surface will not be stable.
The popular choice is UV painting line for high quality painting together with vacuum metallization. Either the uv base coat or top coat will be very sticky. The most important part is the speed can be very fast for mass production purpose. Instead of long time heating in oven for pu or other coatings, UV coating can be flashable curing by uv light.
Because of this, automatic uv coating line installation size will be pretty small comparing to thermal based coating.
UV coating line main parameters overview
| IR oven & UV oven | 1, Ceramic/stainless steel heater for IR oven |
| 2, TEM: RT~80 degree | |
| 3, Primac UV lamps(5.6KW each one) | |
| 4, Mirror stainless steel inner wall | |
| 5, T50mm rock wood thermal insulation | |
| 6, China motor | |
| 7, OMRON Temperature card | |
| Line control system | 1, PLC touching screen |
| 2, air switch&overload ensure | |
| 3, Taiwan power switch&indicator light | |
| 4, Taiwan pneumatic elements&Magnetism valve | |
| 5, Taiwan frequency speed converter(UV oven independent control) |
For more information, please contact us and we can provide custom line setup to fulfill your production requirements.
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