After cleaning the glass surface, pre-treatment is required to improve the adhesion and uniformity of the coating. In order to increase the adhesion between the coating and the glass surface, the purpose of pretreatment is to form an oxide layer or chemical bond. Common pretreatment method: plasma spraying coating equipment. On November 22, 2024, the financial sector reported that the China National Intellectual Property Administration information showed that Guangdong Zhenyi Intelligent Equipment Co., Ltd. had applied for a patent entitled "an intelligent control method and system for spraying coating machines". The CN public number was 118981603A, which was filed in August 2024. According to the patent abstract, the invention relates to the field of thin film manufacturing technology and discloses an intelligent control method and system for a spray coating machine. This method includes integrating sensor data and preprocessing to ensure data quality, then using decision-making methods to generate optimal control instructions, execute and fine tune, while monitoring system status to achieve self-learning and optimization; The system adopts signal fusion technology to uniformly process multi-source data, providing effective input for decision-making through data cleaning and feature extraction; The control method covers four stages: data preprocessing, decision generation, monitoring, and self optimization, aiming to improve the refinement level of thin film deposition.

Do you know which aspects can be used to improve the thin film deposition effect of plasma spray coating equipment

1. Optimize spraying parameters: By adjusting plasma spraying process parameters such as spraying speed, spraying time, nozzle distance, etc., the film thickness can be accurately controlled and the uniformity of film formation can be improved.

2. Improve deposition efficiency: Plasma spraying technology has high deposition efficiency, especially for the deposition of high melting point materials. Supersonic flame flow can improve particle velocity and deposition efficiency by selecting appropriate nozzle combinations.

3. Reduce residual stress: The residual stress generated during plasma spraying can affect the bonding strength between the coating and the substrate. The quenching stress and microstructural defects inside the coating can be reduced by preheating the substrate multiple times and reducing the spraying power, thereby reducing residual stress.

4. Substrate surface pretreatment: If the substrate surface is not completely cleaned or the surface treatment is improper, the adhesion of the film layer will be significantly reduced. The surface treatment of the substrate can remove surface pollutants and oxides through methods such as plasma cleaning, ultraviolet treatment, or chemical etching, increasing the mechanical adhesion of the ITO film.

5. Control of film thickness: Fine control of film thickness is an important factor in reducing cracks. By optimizing the deposition rate and process parameters, the film thickness can be controlled within a reasonable range to avoid excessive thickness in a single deposition.

6. Adopting high plasma spraying technology: High plasma spraying can completely melt the powder and obtain high coating density, which has become an ideal spraying technology for high melting point ceramic coatings.

7. Improve equipment design: By adjusting the nozzle angle and improving the uniformity design of sputtering targets, optimize equipment design, improve the uniformity of film distribution, and achieve uniform deposition of thin films.

8. Precise control of process parameters: Accurately control the pressure, power, and other parameters during sputtering or evaporation processes to ensure uniform deposition of materials and avoid uneven film thickness in different regions.

By taking the above measures, the thin film deposition effect of plasma spray coating equipment can be effectively improved, achieving more efficient, uniform, and high-quality thin film preparation. In summary, seismometer technology will play an indispensable role in the field of spray coating. If you want to learn more information, please feel free to private chat.