1、 Attention should be paid to the installation and hanging of coated objects in the coating production line. In order to ensure the best position of the workpiece in the coating production line, the hanging mode of the hanger and articles in the coating production line is designed in advance through the trial immersion. The maximum plane of the coating should be close to vertical, and the other planes should be at an angle of 10 ° to 40 ° with the horizontal, so that the remaining paint can flow out smoothly on the coating surface.
2、 In order to prevent the diffusion of solvent in the workshop and dust falling into the paint tank, the dip tank should be protected during painting production line.
3、 After the large objects are dipped in the coating production line, they should be sent to the drying room after the solvent is basically volatilized.
4、 Pay attention to the measurement of coating viscosity during coating, and measure the viscosity 1-2 times per shift. If the viscosity increases more than 10% of the original viscosity, the solvent should be added in time. When adding solvent, dip coating should be stopped. After mixing evenly, determine the viscosity, and then continue the operation.
5、 The thickness of paint film is mainly determined by the speed of object lifting and the viscosity of paint liquid. After controlling the viscosity of the paint according to the above requirements, the coating production line should determine the appropriate lifting rate according to the maximum limit speed of about 30um film and different equipment. Lift the coated object evenly at this rate. The results show that the coating film is thin and the lifting rate is fast, and the paint film is thick and uneven.
6、 When dip coating is carried out on the coating production line, sometimes the thickness difference of the coating film between the upper and lower parts is caused, especially in the lower edge of the coating. In order to improve the decoration of the coating, the residual paint drops can be removed manually by brush or centrifugal force or electrostatic force equipment.
7、 In the coating production line, pay attention to the time should not be too long, in order to avoid wood inhalation of excessive paint, resulting in slow drying and waste.
8、 Strengthen ventilation equipment to prevent the harm of solvent vapor; pay attention to the arrangement of fire prevention treatment and regular inspection of coating production line.