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Quality of Color Prepainted Steel Coil Spraying
Hot sale prepainted galvanized steel coil spraying is all aluminum alloy plate waterproof film coating production line is important to process flow, spraying product quality, is the quality of the apparent quality, immediately endanger the actual effect of the decorative design of goods. But color-coated corrugated sheet in the coating, it is very easy to miss coating, needle color change, and other problems, so how to cause color coil defects? Today, give everybody a detailed introduction.
Color coil coating line requirements of machinery and equipment manufacturing intact, machinery and equipment manufacturing requirements of stable operation, cannot have horizontal, vertical vibration, spraying roller requirements of grinding meticulous. All rollers of one-key coating machine vibrate horizontally, which must be controlled within the permissible range, or it will seriously damage the coating process performance.
Spray painting technology is closely related to the quality of spray paint. It is stipulated that the relative linear speed control of spray roller, paint drawing roller, metrology verification roller and plate is within the necessary range. According to different management system and coating film thickness, viscosity of architectural coatings must be category, ensure the smooth conduct of the coating to promote improving the quality of the product, and the dry solid processing technology of building coating, drying box manipulation must be manipulated by the regulation, should change, or will cause serious damage to spray partial color and characteristics of the goods.
It is stipulated that the spraying room shall be cleaned and cleaned to ensure anti-fouling, moth-proof and necessary natural ventilation characteristics, and ensure that the spraying process performance is not polluted by the environment. color-coated corrugated roofing sheet volume of architectural coatings and aluminum are elements of a spraying harm spraying quality during the whole process, because the batch number among entities partial color of architectural coatings, architectural coatings granularity and insufficient coating rate is not high, architectural coatings, poor level in conjunction with organic solvent, etc., are immediately harm spraying effect caused by faults, aluminum coil plate not leveling, film thickness is not well-balanced, edge tensile strain degree also immediately harm such as poor product quality and the overall application. Therefore, the selection of raw materials should be strictly controlled.
In addition, causes the color steel coil to produce the shortcoming the reason also has the human for the error, operator’s responsibility, to the technical control situation and the actual operation standardization, is obtained the high quality spraying the actual effect the important. Therefore, it is necessary to improve the learning and training of operators and allow operators to grasp the basic principles and key points of spraying technology, improve the responsibility, strictly carry out the actual operation in accordance with the safe operation procedures, to ensure high quality spraying goods.