Here is a coating that won’t chip, peel, or flake.  It has a surface micro-hardness of 2,300 Vickers (equivalent to about 85 Rockwell C) which is harder than tungsten carbide.  It has the beautiful appearance of bright polished gold.  It is self-lubricating/non-stick, wear resistant and chemical and corrosion resistant—you can store it in saltwater.  Depending upon mating surfaces, TiN has a coefficient of friction ranging from 0.05 up to 0.90.

CarbideRods

Avoid metals containing significant amounts of Cadmium (Cd), Tin (Sn) or Lead (Pb) and materials that can outgas in the vacuum chamber. Assemblies and press fit parts can also create an out-gassing situation.

The most common materials successfully coated with TiN are the tool steels, stainless steel, mild steel, titanium alloys, carbides, Inconel, Hastelloy, the copper alloys and the aluminum alloys.

Titanium Nitride is applied in a vacuum in a plasma field and forms a metallurgical bond with the substrate.  Its film thickness can range from a quarter micron up to 12 microns.  Most applications use about 5 microns.  Inherent in the process is coating thickness uniformity.  No buildup occurs in corners yet the coating throws well into complex geometric features.

Carbide rod manufacturercanada

We clean the parts immediately before coating them.  They should be ready for coating, and cleaned of foreign material, then coated with a light rust-preventive oil for shipment to us.  Parts that do not require oil may be wrapped in a suitable material to prevent contamination and/or prevent oxide buildup.

Titanium Nitride (TiN) is probably the most common Physical Vapor Deposition (“PVD”) hard coating because of its versatility and long history of success.   TiN has an excellent combination of performance properties, attractive appearance, and safety.  It’s so safe it meets FDA requirements for surgical tools and implants as well as food contact applications.

Tungstencarbide rod manufacturer

Image

Carbide rod manufacturernear me

The Company and its licensors. All rights reserved. All trademarks and brands are property of their respective owners. Terms of Use · Privacy Policy Website by BizAtomic

Proper adhesion of the coating requires a pristine surface of the part.  The surface must be free of paint, glue, rust, oxidation, etc.  Grit blasting after heat treating and before finish grinding has been found the best approach.  Areas that are not important for coating still must not have a contaminant on the surface that could outgas, as this material will migrate throughout the chamber and contaminate all of the coating.

PVD coatings are applied to many different materials.  Materials coated include most metals, ceramics, and some plastics.  Substrates must be compatible with a high vacuum environment and must be able to withstand the deposition temperatures of the process.