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        來源:http://www.hnbjyygs.com/ 發布時間:2023-12-16


        1、 The advantages of process design for water-based coating production lines:


        1. Health assurance for operators: Water based coatings only use a small amount of low toxicity alcohol ether organic solvents, which improves the working environment of the coating production line and is beneficial to the health of workers.


        2. Easy to clean: Water based coating tools can be cleaned with water, greatly reducing the consumption of cleaning solvents.


        3. Environmental protection requirements meet standards: Water is used as a diluent and water is used to clean spraying and painting equipment and equipment. Generally, the organic solvent (accounting for 10% to 15% of the coating) in water-based coatings is between 10% and 15%, while the current cathodic electrophoretic coatings have decreased to below 1.2%. The organic solvent has been greatly reduced, resulting in significant resource savings and reduced air pollution caused by coating waste gas treatment. This can better meet national environmental protection requirements and protect the environment.



        4. Corrosion resistance: The coating of electrophoretic lines can be applied to complex workpieces, and a certain thickness of coating film can be applied to the inner cavity, welds, edges, and edges, improving the corrosion resistance of workpieces.


        5. Strong adhesion: Waterborne coatings can be directly applied on wet surfaces and humid environments. Waterborne coatings have good adaptability to material surfaces and strong coating adhesion.


        6. Reduce fire hazards: Water based coatings use water as a solvent, saving a lot of resources. Water based coatings eliminate the fire hazards during construction.


        2、 Disadvantages of process design for water-based coating production lines:


        1. Waterborne coatings have high conductivity, and special treatment measures such as insulation are required when using electrostatic spraying.


        2. Due to water, it is easy to breed bacteria, so it is important to pay attention to anti-corrosion and mold prevention.


        3. Surface tension testing requires high surface cleanliness of the material substrate during the construction process, and contamination can easily cause shrinkage of the coating film.


        4. Water based coatings have a high latent heat of evaporation, and the water used as a diluent has poor volatility, which can easily cause coating defects such as sagging, pinholes, and foaming; When leveling and using fixed lines, energy consumption is high, carbon emissions increase, and high requirements are placed on the environment and humidity of the painting production line.


        5. Waterborne coatings have strong corrosiveness and are highly corrosive to painting equipment. During transportation, the corrosion of the conveying pipeline is strong, and stainless steel pipes need to be used. Protective measures should be taken, and equipment renovation should be carried out.


        6. The viscosity of water is greatly affected by shear force, and when subjected to high shear force, the viscosity of water-based coatings will decrease significantly, which will have a significant impact on the paint transportation and blending system.


        7. When the room temperature is below 5 degrees Celsius, it should not be stored as it is prone to freezing damage.


        Thank you for reading. The source of this article is Robot Coating Line. For more information and questions, please click: http://www.hnbjyygs.com We will continue to work hard to provide you with services. Thank you for your support!


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