DEVICE FOR DEPOSITION OF POLYMER POWDER COATINGS Russian patent published in 1998 - IPC

FIELD: deposition of coatings from powdery materials with the help of air spraying; may be used in application of coatings to articles in various industries. SUBSTANCE: device has grounded body with channel from dielectric for passage of air-powder mixture. Channel is made from successively connected parts. Each part is located at an angle α to previous one. Device also includes spraying nozzle. The angle α is taken within 125^°> α > 0^°. Body consists of two connected parts. Channel for passage of air-powder mixture is made between surfaces of connected parts contact. EFFECT: provision of efficient charging with reduced overall dimensions and weight of device. 2 cl, 3 dwg