What are the differences between a single nozzle plasma spraying coating machine and a dual nozzle dual plasma spraying coating machine? There are many differences between the two, as follows:

1. Number of nozzles

Single nozzle: refers to the plasma spraying coating machine equipped with only a single nozzle. During the coating process, all coating materials are sprayed through this nozzle. The AF7500-1 from Zhenyi Co., Ltd. is our company's new generation of single plasma spraying coating equipment. It adopts a metal frame with moderate external dimensions, an integrated design of the operation panel and button, and is equipped with a German imported nano nozzle. It accurately controls the spraying amount, improves the atomization ability of the solution, enables the product surface to be uniformly combined, improves the uniformity of product spraying, increases surface smoothness and wear resistance, increases production capacity by 10-20%, and saves about 10% of solution;

Double nozzles: there are two nozzles, which can work simultaneously and operate efficiently, and can also control one nozzle separately as needed. The AF8000-600 of Seismometer is a new generation of high-end plasma spraying and coating equipment of our company, which uses two plasmas. The spraying and coating will be cleaned by double plasma, which can clean the surface residues, improve the surface adhesion, and improve the anti-aging and friction resistance of the product. All profiles are made of 6061 aviation materials, with surface electroplating treatment, greatly improving corrosion resistance and extending equipment service life. Currently, there are two colors to choose from, champagne gold and rose gold, making the equipment more high-end.

In a word, plasma generating devices: both coating machines are equipped with dual plasma generating devices. Cleaning the workpiece before coating can reduce the impurities attached to the product itself, such as residual organic matter, which can make the surface of various materials such as glass react with the film, improve the adhesion and firmness of the surface. Finally, a gentle sweep of the plasma spraying coating machine can improve the anti-aging and friction resistance of the product, and make the coating quality higher.

2. Work efficiency

Single nozzle: The spraying speed of a single nozzle is relatively slow, and for large-area workpieces or situations that require large-scale production, the coating task may take a long time to complete.

Dual nozzle: The design of dual nozzles can greatly improve the coating speed and complete more coating work at the same time, making it suitable for large-scale production and occasions with high efficiency requirements.

3. Coating effect

Single nozzle: During the spraying process, the distribution of paint is relatively concentrated, which may form a thick film layer on the surface of the workpiece.

Dual nozzle: By adjusting the spraying angle, distance, and paint flow rate of the two nozzles, the dual nozzle can achieve a more uniform distribution of film thickness, improving the quality and consistency of the coating. In addition, dual nozzles can also achieve special coating effects such as gradient coating and dual color coating.

4. Scope of application

Single nozzle: suitable for small parts, laboratory samples, and other situations where coating speed is not high, workpiece area is small, or shape is simple.

Double nozzle: suitable for large-scale production of automotive components, electronic product casings, glass of various sizes, and for situations where the workpiece area is large or the shape is complex.

5. Equipment cost

Single nozzle: Due to its relatively simple structure, the equipment cost of a single nozzle dual plasma spray coating machine is usually lower, including the purchase price, installation and commissioning costs, and maintenance costs of the equipment.

Dual nozzle: Due to its complex structure and high performance requirements, the equipment cost of dual nozzle equipment is much higher than that of single nozzle equipment, but its production efficiency and coating effect are relatively good. Therefore, dual nozzle equipment is still the preferred choice for some occasions that require high production efficiency and quality. The two nozzle powers of the dual nozzle dual plasma spray coating machine can be different.

6. Meet the spraying requirements of different materials:

Different coating materials have different physical and chemical properties, such as melting point, boiling point, and thermal conductivity. Some materials may require higher power to fully melt and atomize, thereby forming a uniform and dense thin film layer on the surface of the workpiece; For other materials, low power can achieve ideal spraying effects. By setting different powers for two nozzles, the appropriate power can be selected for each nozzle based on the specific coating material combination, thereby optimizing the spraying process and improving coating quality. For example, when metal and ceramic materials need to be sprayed simultaneously, metal materials typically require higher power to melt ceramics, while existing materials typically require lower power.

The above is about the differences between single and double nozzle plasma spray coating machines. Regardless of which equipment you choose, it will bring some challenges and you need to refer to the process technology and parameter adjustment of the equipment. If you don't know which equipment to choose, you can privately chat with the vibration instrument staff to help you identify the suitable plasma spray coating machine to meet your coating process requirements.