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pvd plating process

The Benefits of PVD Coating on Electroplated Parts

Chrome plating technology is an underappreciated marvel of materials science—a fascinating alchemy of chemistry and metallurgy that produces the most well-known metal surface finish available. Chrome plating or chrome PVD coating, which was introduced in the 1920s, quickly gained popularity in the auto industry, consumer products, and then in the home with faucets and door hardware.

The Benefits of PVD Coating on Electroplated Parts

What’s Unique About Chrome Coating?

Before we get into how PVD can help chrome plating, it’s important to understand why this coating is unique. The first point to mention is that “chrome plating” is made up of two or three different metal layers, with only trace amounts of chromium present. The plating stack on most substrates, such as steel, zinc, and plastic, includes copper, nickel, and finally a top layer of chromium. When applied to brass, the copper is omitted, and the process begins with nickel and chromium.

Other materials can also be added to nickel baths to create an appealing matte or pearl-like texture.

Also read about, What Is Powder Coating and How Can I Use It?

A Thin But Significant Layer of Chromium

Despite the fact that the chromium layer is thin, the contributions are substantial. As far as pure metals go, it’s one of the hardest (1000HV), which, when built on top of a supporting structure of thick, moderately hard nickel (600HV), will increase toughness and durability even more. Chromium also has a strong naturally forming surface oxide layer that protects it from chemical attack and tarnishing, which is why chromium is used to make stainless steel alloys “stainless.”

A Serious Drawback: Strict Regulation of Chemical Plating Process

One disadvantage of chromium plating is the stringent regulations governing the chemicals used to create the coatings—not the metal layer itself, which is safe. Chrome plating is most commonly done with the hexavalent form of chromium (Cr6+). Over the last few decades, the plating industry has made great strides in improving these aspects, and the process has been adopted by many markets. However, the hexavalent approach remains the dominant approach. Please keep in mind that PVD coatings or PVD coating companies are one option for replacing hexavalent chrome with a more aesthetically pleasing appearance—but that is a topic for another post.

Chromium in Decorative Coatings—PVD on Electroplated Parts

Regardless of the type of chromium deposit used, both are completely compatible with the wide range of decorative PVD coatings offered by Vapor Technologies (VaporTech®). Parts that have been chrome plated typically require no additional treatment and can be placed directly into a coating system for a new finish. By incorporating a PVD system into their production line, manufacturers can add different colors to products that already have a chrome finish. These decorative PVD finishes are thin and conformal to surface features, allowing the parts to retain their texture – polished will remain polished, and matte will remain matte.

Our coatings engineers are knowledgeable about surface finishing techniques other than PVD, such as electroplating, powder coating, anodizing, and mass finishing. We are eager to collaborate with our customers to determine how these technologies can be combined to create new solutions.

SurfTech INC is capable of selecting and implementing the best stainless steel product for you, and we provide Assisted PVD coating, thin film coating, and ceramic coating facility in the United States. Contact us today for a quote, to learn more about our process, you can call us on +1-440-275-3356 and email us on ncotton@ercsurftech.com.

Original source, https://bit.ly/3XxueMr

Different Types of Pvd Coating

PVD which is an acronym for physical vapor deposition can be determined as a process that includes the vaporization of a metal material which is then condensed to the surface of the production part in form of a coating. The quality of these production parts increases significantly as the physical vapor deposition or the PVD coating process enhances the durability, and toughness of the product and makes it oxidation and chemically resistant.  There are a lot of industries namely, automotive, medical industry, and aerospace which use this process time and time again. This helps to improve the overall performance of the product and brings a lot of comfort in terms of ease of cleaning. Let us further look at the three popular types of PVD coating

Three Main Types of PVD Coating

This incredible technique of physical vapor deposition first came into prominence during the early period of 1970s. They picked up a great pace in terms of usage in the late 90s and were essentially being used by every major industry. There are several processes of the PVD which are covering a large spectrum of work with super incredible attributes. Vapor deposition, sputter deposition, and thermal evaporation though are three of the popular and commonly used forms. Each of the processes in the PVD coating has got its subsets but they all are providing incredible results.

  • Thermal Evaporation

Thermal evaporation is divided into two main categories, one is electron beam deposition and the other is pulsed laser deposition. Both of these processes take the help of energy in evaporating any material such as chromium, aluminum, copper, or titanium in the vacuum. Now the vapor through the vacuum enters the production parts which are comparatively cooler where they get a chance to condense to take the formation of the hardened metal state. The process of thermal evaporation is mostly used in micro fabrication, packaging, and the computer industry.

Also read about, What Metal Finishing Option Is Best For Your Product?

  • Sputter Deposition

Magnetron sputtering and ion beam sputtering are the two different type of deposition that is being used in manufacturing applications these days. The process of the ion beam is used to navigate a high electric field towards the material’s surface to vaporize. This led to the ionization of metal vapor gases directing the moment of ions towards the part of the production. Magnetron sputtering though is slightly different where the charged ions get the required acceleration by the electrical field which is then superimposed to targeted directions. The medical industry highly prefers to use this process.

  • Arc Vapor Deposition

The most popular PVD plating process which is highly preferred by Surftech Inc is arc vapor deposition. The process involves the usage of a low-volt arc to vaporize the surface of the metal. Now the evaporated atoms of the metal start to combine with molecules of the gas and again the process of condensation starts in cooler production parts situated nearby. a multi-axis carousel help to spin the parts in production and distribute them in equal quantity for perfect coating. This process has come into prominence because it is one of the most environmentally friendly processes.

Surftech INC has years of experience in dealing with PVD coating as well PVD plating process. Our team will be all thrilled to help you understand the various processes and suggest what will suit best for you.