What are the methods and techniques of coating dipping for powder coating equipment

Methods and techniques of coating dip coating for powder coating equipment
(1) The thickness of the paint film is mainly determined by the rate at which the object is lifted and the viscosity of the paint solution. After controlling the viscosity of the paint solution according to the above requirements, according to the larger limit of about 30um of the paint film, the appropriate lifting rate is determined by experiment according to different equipment. At this rate, the coated object is evenly lifted. The lifting rate is fast and the paint film is thin; the lifting rate is slow, and the paint film is thick and uneven.
(2) The dipping operation sometimes causes differences in the thickness of the paint film to be coated and the bottom of the paint film, especially thick accumulation on the lower edge of the coated object. In order to improve the decoration of the coating, use a brush to manually remove the excess accumulated paint drops when dipping in small batches, or use centrifugal force or electrostatic attraction equipment to remove these paint drops.

(3) The time for dipping the wooden parts should not be too long, so as to avoid the wood from inhaling excessive paint, causing slow drying and waste.
(4) After the large objects are dipped and coated, they should be sent to the drying room after the solvent is basically volatilized. During the inspection, the paint on the thicker painted part should not stick to your hands and no fingerprints shall prevail.
(5) Attention should be paid to the installation of painted objects. The hanger and mounting method are designed through trial dipping in advance to ensure that the workpiece is in a better position during dipping. The larger plane of the object to be coated should be close to vertical, and the other planes are at an angle of 10°-40° with the horizontal, so that the remaining paint can flow out more smoothly on the painted surface, and try not to produce paint or "air pockets".
(6) Pay attention to the determination of the viscosity of the paint. The viscosity should be measured 1-2 times per shift. If the viscosity increases by more than 10% of the original viscosity, the solvent should be added in time. When adding solvent, the dip coating operation should be stopped. After stirring evenly, measure the viscosity, and then continue the operation.
(7) In order to prevent the solvent from spreading in the workshop and dust falling into the paint tank, the dipping tank should be protected. Outside the operation, the small dipping tank should be covered, and the large dipping tank should drain the paint and clean it with solvent at the same time.
(8) Strengthen ventilation equipment to prevent the harm of solvent vapor; pay attention to the arrangement of fire prevention measures and regular inspections.

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