1. Defects in raw materials lead to
Coatings and aluminum electromagnetic coils are good factors that can harm the quality of coatings. Due to the color deviation in the middle of the coating batch number, insufficient coating particle size, low coating rate, and poor coordination between the coating and organic solvents, layering will immediately endanger the actual effect of the coating, causing disadvantages such as uneven coating thickness, uneven edge deflection values, and also affecting product quality and overall application. Therefore, when selecting raw materials for color coated aluminum coils, strict control should be exercised.
2. Defects in machinery and equipment lead to
The spraying production line stipulates that the spraying equipment is intact, the spraying equipment operates stably, without horizontal or vertical vibration, and the spraying rollers are finely ground. The horizontal vibration of most rollers in the coating machine must be controlled within the allowable standard, otherwise it will seriously affect the quality of the coating surface of the color coated aluminum coil.
3. Defects in processing technology lead to
The spray painting process is closely related to the spray painting quality, and it is stipulated that the relative linear velocity of the spray painting roller, coating roller, precision measuring roller, and plate should be controlled within the recommended area. The recommended viscosity range for coating should be set based on different systems and coating product thicknesses to ensure smooth coating development and promote product quality improvement. The drying and solidification process of the coating must be operated according to the requirements of the drying oven, and cannot be changed arbitrarily, otherwise it will seriously affect the production and manufacturing of the coating
4. Natural environmental defects lead to
The internal structure of the spraying room is required to be cleaned, anti fouling, and anti moth. The color coated aluminum coil should have recommended natural ventilation characteristics to ensure that the quality of the sprayed surface is not affected by environmental pollution. At the same time, due to temperature changes, the processing technology standards should be changed immediately.
5. Defects caused by human factors
The obligations of actual operators, proficiency in color coated aluminum coil technology, and operating standards are important for obtaining high-quality spraying effects. Therefore, it is necessary to strengthen the learning and training of practical operators, so that the operators can grasp the standards and key points of the spraying process, strengthen their obligations, strictly follow the operating procedures for actual operation, and ensure high-quality spraying products.
The five factors that can easily cause defects in colored coated aluminum coils are interrelated and affect each other. Sometimes, the occurrence of a defect is related to many factors, and it is necessary to analyze and eliminate them one by one.
