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Powder coating system - B2250 series
ApplicationB2250 series was developed as the unique plants for deposition of metals, alloys and oxides layers onto disperse materials with dimension from 50 up to 400 micron.
Engineering and technology
The powder coater is a batch plant for use in production and R&D work performance. Coating is carried out by high rate evaporation boats or by DC sputter magnetrons. Depending on targeted coating the powder is exposed as a falling powder curtain or a powder layer on the vibrating transporter. Multiple circulation of the powder in a closed-circle during the deposition cycle provides gradual increase in the coating thickness. The cooling/heating system stabilises temperature of the contact surfaces during powder circulation in a range of -20 to +110 oC. Drying of the powder before the coating deposition or powder cooling after reaching the limit temperature can be initiated.
All vacuum chamber internals are enclosed as maximum possible to escape loss of the powder and to protect mechanisms inside the chamber. Monitoring of coating composition and thickness while the process is on. Continuous temperature monitoring of the powder and contacting surfaces. Process gas inlet system is based on applying of mass flow controllers. Coater control via PLC in automatic and manual modes.