Metal Film Coating
Your Professional Metal Film Coating Supplier
Perfect Optics is a leading technology company dedicated to the research and development of advanced optical equipment and processes, as well as the design and manufacturing of high-precision optical components and systems. We are committed to delivering superior optical solutions to clients across various industries through our unwavering focus on technological excellence and exceptional customer service.
Professional Team
Our team comprises highly skilled and experienced professionals with extensive expertise in the optical field. With decades of collective experience, we have perfected the manufacturing process for optical components, achieving precision at the nanometer level and even sub-nanometer accuracy.
Quality Control
To ensure the highest quality standards, we utilize state-of-the-art measurement instruments such as ZYGO, LUPHOSCAN, coordinate measuring machines, and 4D dynamic interferometers.
Custom Service
We offer customized lenses and optical systems designed to meet specific customer requirements, ensuring tailored solutions that address unique needs.
Advanced Equipment
Our in-house capabilities enable us to develop cutting-edge optical manufacturing equipment, providing an optimal environment for producing efficient and highly precise optical components.
Parameters
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Material |
Specifications |
|
Cooper |
Substrate: Fused Silica, H-K9L, etc. Surface Quality: 40-20 Chamfer: 0.5mm, 45° Coating Material: Ag, Al, Cr, etc. Clear Aperture: > 90% of diameter |
|
Silver |
Substrate: Fused silica, BK7 Surface Figure: < λ/10 @ 632.8nm Surface Quality: 40-20 Chamfer: 0.5mm, 45° Coating Material: Silver Clear Aperture: > Central 85% of diameter |
|
Aluminium |
Substrate: Fused silica, BK7 Surface Figure: < λ/10 @ 632.8nm Surface Quality: 40-20 Chamfer: 0.5mm, 45° Coating Material: Aluminum Clear Aperture: > Central 85% of diameter |
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Germanium |
Substrate: Germanium, ZnSe, etc. Surface Quality: 40-20 Chamfer: 0.5mm, 45° Coating Material: ZnS, YbF3, Ge, etc. Clear Aperture: > 90% of diameter |
|
MgF2 |
Substrate: Fused Silica, H-K9L, etc. Surface Quality: 40-20 Chamfer: 0.5mm, 45° Coating Material: Al2O3, SiO3, HfO2, Ta@O5, etc. Clear Aperture: > 90% of diameter |
|
Gold |
Substrate: Fused silica, BK7 Surface Figure: < λ/10 @ 632.8nm Surface Quality: 40-20 Chamfer: 0.5mm, 45° Coating Material: Gold Clear Aperture: > Central 85% of diameter |
|
Chromium |
Substrate: Fused silica, BK7 Surface Figure: < λ/10 @ 632.8nm Surface Quality: 40-20 Chamfer: 0.5mm, 45° Coating Material: Chromium Clear Aperture: > Central 85% of diameter |
|
Germanium |
Substrate: Germanium, ZnSe, etc. Surface Quality: 40-20 Chamfer: 0.5mm, 45° Coating Material: ZnS, YbF3, Ge, etc. Clear Aperture: > 90% of diameter |
Types Of Metal Film Coating
The metal film coatings provided by our company mainly include the following types:
Gold Conductive Film Coating
Gold conductive film coating is a highly advanced technology that has revolutionized the electronics industry. It is a thin layer of gold deposited on a substrate material that provides an excellent conductor of electricity. This technology has enabled the development of highly efficient electronic devices that are smaller, faster, and more powerful than ever before.
Silver Reflective Film Coating
In the optical field, the main parameters of silver reflective film include reflectivity and spectral bandwidth. Its reflectivity can reach more than 98%, and it has obvious reflection characteristics in visible light, near infrared and far infrared bands. The spectral bandwidth refers to the wavelength range where the reflectivity is kept within a specific range.
Benefits Of Metal Film Coating
Prevention Of Oxidation
The application of metal coatings in optical products is indispensable. It provides a strong protective layer on the substrate surface, effectively preventing oxidation for susceptible metals or alloys. This prevents the substrate from reacting with oxygen in the environment, thereby slowing down or avoiding oxidation, extending the product's life cycle, and enhancing its performance.
Enhancement Of Radiation Tolerance
Optical components used in space projects may be subjected to various forms of radiation, including solar radiation and cosmic rays. These radiations can potentially damage optical components in space. Therefore, suitable metal materials and coating thicknesses can be chosen based on radiation environment and requirements. Metal coatings can be employed to enhance the radiation tolerance of optical components in space.
Reinforcement Of Hardness And Abrasion Resistance
Metal coatings on optical components can effectively resist surface abrasion. Various wear resistance tests are often conducted on metal coatings of optical components to assess their durability and performance. Among these, the most common method is the cross-cut test, which evaluates the wear resistance of the metal coating layer according to relevant specifications, ensuring its ability to maintain surface integrity during use.
Enhancement Of Optical Properties
Metal coatings can enhance the optical properties of optical components. They offer an effective means to precisely adjust the reflectance or transmittance of optical components by selecting different metal materials and controlling the thickness of the coating. This capability enables meeting the optical requirements of various wavelength ranges, thus providing more possibilities for the application of optical components.
Applications of Metal Film Coating
Corrosion Protection
The main purpose of all types of metal coatings is simply to protect metal products from natural occurrences such as corrosion. Both water-borne and solvent-borne coatings work well in industrial use, but different types of coatings have different pros and cons. This means that before deciding on which coating to go with, you should always consider specific products and the specific use case at hand.
Better Durability
In addition to protection from corrosion and natural elements, using quality metal coatings ensures better durability for the entire metal structure. Coatings that last longer also directly result in longer maintenance painting intervals, which in turn helps you manage costs in the long run.
Improved Appearance
Metal coatings result in the long-term preservation of a structure’s cosmetic appearance, even under extreme conditions. With suitable and proper metal coatings, you can create a long-lasting finished surface with your preferred aesthetics including paint colour, gloss level, and more.
Increased Chemical And Water Resistance
Applying a proper metal coating means forming a tough surface on your structure, and, in addition to protection from corrosion, the coatings are also highly resistant to any abrasion or chemical stress. If you need a metal coating for an environment of high humidity, it’s a good idea to consider solvent-borne coatings.
Fire Protection
Certain metal coatings can also be used to protect the substrate from the effects of fire. Having a metal coating that protects from fire helps by giving additional time before the steel reaches a temperature at which it loses its load bearing capacity. This extra time allows evacuation of the building and a chance for the emergency services to control the fire.
Metal Film Coating Process
You can think of hot-dip galvanizing as a bath for the product being coated to ultimately form a corrosion-resistant layer of zinc-iron alloy and zinc metal. During hot-dip galvanizing, the steel component that is being coated is dipped into a pool of molten zinc that is at approximately 450 degrees Celsius. During the immersion process, there is a metallurgical reaction that takes place with zinc alloy and zinc layers. This reaction that takes place to coat the steel component is a diffusion process, helping to create a smooth, uniform layer of metal coating.
The second metal coating process is called thermal spraying. It may also be referred to as spray welding, plasma spray, flame spray, metalizing, HVOF, and arc spray. All of these names are referring to the same thermal spraying process. This process relies on a consistent heat source such as a flame as well as a coating material. The coating material is either in powder or wire form that is heated via the flame, resulting in small droplets that are sprayed onto the steel’s surface. This type of coating cannot only be applied to metal substrates but some plastic substrates as well, as these coatings help to further improve the performance of the component being covered.
The third metal coating process is called electroplating, also referred to as electrodeposition. This process revolves around an electric current that deposits the material onto the workpiece’s surface. As soon as the anode and cathode are connected, the power supply will begin adding DC, or direct current, to the anode. In return, the metal begins to oxidize and the atoms dissolve and turn into positive ions. The current then forces the move to the negatively charged substrate, resulting in a thin coating of metal.
Sherardizing also referred to as vapor galvanizing or dry galvanizing is a process that forms a protective layer of zinc-iron alloy on top of steel or iron. The object starts by getting heated in an airtight container with extremely high temperatures before it goes into a rotating drum. Next, a thermal diffusion process forces the zinc onto the surface of the metal, forming the zinc-iron alloy. The coating itself has a smooth surface and uniform thickness, providing a barrier against abrasion and corrosion.
Packaging And Shipping
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Packaging |
Wooden crate package for standard exporting package. |
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Shipping |
We will help you to choose the best shipping way according to your detail requirements. By sea, by air, or by express, etc. |
Our Certificate
FAQ
We're well-known as one of the leading metal film coating manufacturers and suppliers in China. If you're going to buy customized metal film coating made in China, welcome to get pricelist from our factory. For price consultation, contact us.
Gold Conductive Film Coating, Metal Film Coating, Coating Service