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PVD (Physical Vapor Deposition) and CVD (Chemical Vapor Deposition) are two major thin-film coating technologies. PVD vaporizes materials through physical means (e.g., heating or sputtering), resulting in strong adhesion but slower deposition rates. CVD forms coatings via chemical reactions, off
As a new polishing process, plasma polishing is a trend in stainless steel polishing. If we can make good use of plasma polishing will save us a lot of time and costs.
PVD and CVD are the most commonly used surface treatment methods for tools and moulds, CVD is based on chemical vapour deposition and PVD is based on physical vapour deposition, as they differ in principle, the final coating results are different and each has its own focus in application.
Electrolytic polishing has great advantages over traditional polishing, low cost, small footprint, can polish complex workpieces, has unmatched advantages over traditional polishing.
PVD stands for Physical Vapour Deposition. PVD coating refers to a thin film deposition technique whereby solid materials are sputtered or evaporated in a vacuum environment and deposited as pure materials or alloy components to form a coating on a substrate.
Views: 38 Author: Site Editor Publish Time: 2022-07-22 Origin: Site
The specific principle of PVD (ion coating) technology is the use of low voltage, high current arc discharge technology under vacuum conditions, the use of gas discharge to evaporate the target material and make the evaporated material and gas are ionised, the use of electric field acceleration, so that the evaporated material and its reaction products deposited on the workpiece.
The film layer produced by PVD coating technology has high hardness, high wear resistance (low coefficient of friction), good corrosion resistance and chemical stability, etc. The life of the film layer is longer, and the film layer can significantly improve the appearance and decorative properties of the workpiece.
1. Properties of the coating
-Metallic appearance
-Uniform and consistent colour
-Durable surface that permanently retains its good appearance under all basic air and direct sunlight conditions
-Deep, brilliant colour
-Economical, reducing the time and cost necessary to clean and polish plated brass or gold
-Environmentally friendly, avoiding chemical poisoning and VOC emissions.
-Biocompatible
2. Coating characteristics
-Excellent adhesion - can be bent over 90 degrees without cracking or peeling (PVD coatings have high adhesion and durability). Other techniques, including electroplating and painting, are not comparable.
-Can be etched with any design imaginable.
-Can be used on interiors or outdoors
-Resistant to oxidation and corrosion.
3. PVD film resistance
-Corrosion resistant and chemically stable.
-Resistant to acids
-Resistant to oxidation under normal conditions, indoors or outdoors, without fading, losing lustre or leaving marks.
-Will not break under normal use.
-No fading.
-Easily removes paint and pen marks.
-Does not lose its lustre, oxidise, fade, peel or burst in strong sunlight, salty wetlands and urban environments.
The film is available in a wide range of colours and has a fine, smooth surface with a metallic lustre that never fades. No discolouration, no peeling and stable performance in harsh environments such as hot sun and humidity. Highly resistant to wear and tear, scratch resistant, not easily scratched. A wide range of materials can be coated, and the bond with the substrate is strong. Vacuum ion coating technology is truly harmless to the human body and the ecological environment. From an economic point of view, it saves (reduces) the time and expense of cleaning and polishing that is normally required for copper (gold) plated products, and can be cleaned with a soft cloth and glass cleaner.
