source：本站author：超級管理員time：2025-03-20views：25669023
In the traditional sense, what are the differences between electrostatic spraying and AF spraying coating equipment
1、 The two principles are different:
1. Electrostatic spraying: It utilizes the principle of electrostatic adsorption. After the electrostatic powder spray gun is powered on, a high voltage is generated at the front end, causing the sprayed powder to carry a negative charge. At the same time, the workpiece is positively charged, and the negatively charged powder is adsorbed on the surface of the workpiece under the action of the electric field, forming a uniform coating. When the coating reaches a certain thickness, the charges repel each other, and the powder no longer adsorbs and accumulates.
2. AF spray coating equipment: AF refers to anti fingerprint technology, and its core principle is based on plasma technology and spray gun system. After the equipment is started, the plasma generator generates plasma of specific frequency and energy to treat the surface of glass and other substrates, breaking the original chemical bonds and forming active sites. The spray gun sprays precise coating materials uniformly and controllably onto the substrate surface according to preset parameters. The coating material chemically bonds with the substrate
surface to form a coating with anti fingerprint, hydrophobic, oleophobic and other properties.
2、 Different spraying materials:
1. Electrostatic spraying: Powder coatings such as thermoplastic powder coatings and thermosetting powder coatings are commonly used, which have good durability, corrosion resistance, and decorative properties.
2. AF spray coating equipment: It uses AF solution containing organic fluorides and other components, which can form extremely thin nanoscale coatings on the surface of objects, generally with a thickness of less than 10nm.
3、 Different application scenarios:
1. Electrostatic spraying: widely used in the coating of various metal products, such as automotive parts, metal furniture, home appliance casings, mechanical components, etc., to improve the corrosion resistance, wear resistance, and decorative properties of products.
2. AF spray coating equipment: mainly used for optical lens lenses, display panels, porcelain cover glass sheets, touch screen glass panels, etc., such as glass components of electronic products such as mobile phones and displays, as well as some glass, metal, plastic and other products with high requirements for surface anti fingerprint, waterproof, and oil resistant performance.
4、 The structure and composition of the equipment are different:
1. Electrostatic spraying: generally composed of an electrostatic spray gun, powder supply system, high-voltage electrostatic generator, spraying room, recycling device, etc. The powder supply system is responsible for evenly delivering the powder coating to the spray gun, the high-voltage electrostatic generator provides an electrostatic field for the spray gun and workpiece, the spraying room is used to provide spraying operation space, and the recycling device can recycle unattached powder coating to improve coating utilization and reduce environmental pollution.
2. AF spray coating equipment: usually includes plasma generator, spray gun system, liquid supply system, transmission device, control system, etc. A plasma generator is used to generate plasma for surface pretreatment of workpieces; The spray gun system is responsible for evenly spraying AF solution onto the surface of the workpiece; The liquid supply system precisely controls the supply of liquid medicine; The transmission device is used to transport workpieces and achieve continuous production; The control system precisely controls each component to ensure the stability and consistency of the coating process.
5、 Differences in coating performance:
1. Electrostatic spraying: The coating has good wear resistance, corrosion resistance, and hardness, which can effectively protect the surface of the workpiece. The coating thickness is relatively thick, generally ranging from tens of micrometers to hundreds of micrometers.
2. AF spray coating equipment: The formed coating has excellent anti fingerprint, hydrophobic, and oleophobic properties, which can effectively prevent the penetration and residue of water and oil on the material surface. At the same time, it has good self-cleaning function. The coating is very thin, usually at the nanometer level, but can significantly improve the smoothness and anti fouling of the workpiece surface, and has a small impact on the optical properties of the workpiece.
The main differences in the fields of electrostatic spraying and AF spraying coating equipment processing are as follows:
1. Electrostatic spraying: mainly used for coating various metal products, such as car bodies, car parts, metal furniture, home appliance casings, radiators, instrument casings, mechanical components, etc. Electrostatic spraying can form a uniform and thick coating on metal surfaces, which can protect metals, improve corrosion resistance, wear resistance, and decorative properties. It is widely used in industries such as home furnishings, construction, automobiles, and electrical appliances.
2. AF spray coating equipment: mainly used in fields with high requirements for surface anti fingerprint, waterproof, oil resistant performance, and optical performance, such as glass cover plates and touch screen glass panels for electronic products such as mobile phones, tablets, smartwatches, and car displays; Optical lens, display panel; Porcelain cover glass sheet; And some metal, plastic, ceramic products that require anti fingerprint, hydrophobic and oleophobic properties. AF spray coating equipment can form extremely thin nanoscale coatings on the
surfaces of these materials, endowing them with good anti fingerprint, hydrophobic, oleophobic, scratch resistant, and self-cleaning properties, while having little impact on the optical properties of the materials.
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