In the field of electronic manufacturing, the uniformity of the protection of electronic chemicals three anti-corrosion glue is crucial to ensure the reliability and stability of electronic products. Here are some ways to optimize the coating process:
First, choosing the right coating equipment is the basis. For example, using high-precision spraying equipment or automated dipping equipment can accurately control the flow and pressure of three anti-corrosion glue. Spraying equipment can evenly atomize and spray the three anti-corrosion glue onto the surface of electronic products according to the set parameters; dipping equipment can make the product pass through the glue at a uniform speed to ensure that all parts are fully and evenly attached to the glue layer. For example, when mass-producing PCB boards, using programmable spraying robots can accurately adjust the spraying angle and speed according to the shape and size of the PCB board, so that the glue evenly covers every corner.
Secondly, strictly control the coating environment. Temperature, humidity and cleanliness will affect the coating effect of three anti-corrosion glue. Generally speaking, the suitable temperature range is 20℃ - 25℃, and the relative humidity is controlled at 40% - 60%. Stable environmental conditions can prevent the viscosity of the glue from changing too fast due to temperature changes, or the mixing of water vapor due to high humidity, which affects the curing effect and uniformity. At the same time, a clean environment can prevent dust and other impurities from mixing into the glue, ensuring the smoothness and uniformity of the glue surface.
In addition, optimize the pretreatment of the product. Before applying electronic chemicals three anti-corrosion glue, the surface of the electronic product needs to be cleaned, degreased, and rusted to ensure that the surface is smooth and free of impurities. For example, the use of plasma cleaning technology can effectively remove tiny particles and organic residues on the surface, allowing the three anti-corrosion glue to adhere better, thereby improving the uniformity of the coating.
From the perspective of the preparation and management of the glue, it is necessary to strictly follow the requirements of the product manual for precise preparation. Ensure that the viscosity, concentration and other parameters of the glue meet the coating process standards. And during the coating process, the glue should be stirred continuously to prevent precipitation or stratification, ensure that the properties of the glue applied each time are consistent, and thus ensure the uniformity of protection.
In addition, the coating process parameters should be reasonably designed. Including coating thickness, coating speed and number of coatings. Determining the optimal coating thickness through experiments can ensure the protective effect without sagging, bubbling and other problems caused by too thick glue layer. The coating speed should be moderate. Too fast may lead to uneven distribution of glue, while too slow may affect production efficiency. For some products with complex structures or high protection requirements, the number of coatings can be appropriately increased, but each coating must be ensured to be uniform.
In terms of post-coating treatment, the curing process should be standardized. Control the curing temperature, time and curing environment so that the electronic chemicals three anti-corrosion glue can be cured evenly. For example, the segmented curing method is adopted, first preliminarily curing at a lower temperature to make the glue liquid initially fixed, and then completely curing at a higher temperature, which can reduce the uneven glue layer caused by the stress generated during the curing process.
Finally, establish a complete quality inspection system. Use optical inspection equipment, thickness measuring instruments and other tools to conduct comprehensive inspections on the coated products, timely discover and adjust the problem of uneven protection, and continuously optimize the coating process through continuous feedback and improvement to improve the uniformity of protection of electronic chemicals three anti-corrosion glue.
