A heat-sensitive substrate intelligent coating process and coating system
By using nanopowder preparation and mid-wave infrared curing technology, the problem of controlling the conductivity of non-conductive thermosensitive substrates at low temperatures has been solved, realizing an efficient and environmentally friendly coating process that is suitable for surface treatment of wooden furniture and composite material parts for new energy vehicles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING ELECTRIC VEHICLE
- Filing Date
- 2026-06-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies struggle to effectively control the surface conductivity of non-conductive thermosensitive substrates at low temperatures, resulting in powder particles failing to effectively carry charge or rapidly dissipating charge during electrostatic spraying. This leads to extremely low powder application rates and uneven coatings, severely restricting the application of powder coating on non-conductive thermosensitive substrates.
Using nanopowder preparation technology, through melt extrusion, tableting and cooling, pulverization and classification, catalysts and crosslinking aids are added, combined with mid-wave infrared curing and infrared preheating, to control the resistivity of the substrate. By utilizing the adsorption effect of nanofunctional particles under the action of an electric field, the deposition structure of powder on the substrate surface is optimized.
It achieves environmentally friendly solvent-free coating under low-temperature conditions, shortens curing time, solves the problems of edge effect and uneven powder application on non-conductive substrates, and the coating has good adhesion, scratch resistance and wear resistance, making it suitable for surface treatment of wooden furniture and composite material parts for new energy vehicles.
Smart Images
Figure CN122400104A_ABST