The cathodic arc ion coating technology uses cold field arc discharge technology. The earliest application of cold field arc discharge technology in the coating field was by Multi Arc Company in the United States. The English name of this procedure is arc ionplating (AIP).
Cathode arc ion coating technology is the technology with the highest metal ionization rate among various ion coating technologies. The ionization rate of the film particles reaches 60%~90%, and most of the film particles reach the surface of the workpiece in the form of high-energy ions, which have high energy and are easy to react to obtain hard film layers such as TiN. Lowering the temperature of TiN deposition to below 500 ℃ also has the advantages of high deposition rate, diverse installation positions of cathode arc sources, high utilization of coating room space, and the ability to deposit large parts. At present, this technology has become the main technology for depositing hard film layers, heat-resistant coatings, and decorative film layers on molds and important equipment parts.
With the development of the national defense industry and high-end processing industry, the demand for hard coatings on tools and molds is becoming increasingly high. Previously, most of the parts processed by cutting were ordinary carbon steel with a hardness below 30HRC. Now, the materials being processed include difficult to machine materials such as stainless steel, aluminum alloy, and titanium alloy, as well as high hardness materials with a hardness of up to 60HRC. Nowadays, using CNC machine tools for machining requires high speed, long service life, and lubrication free cutting, which puts forward higher requirements for the performance of the hard coating on the cutting tools. Aircraft gas turbine blades, compressor blades, extruder screws, automobile engine piston ring, mining machinery and other parts have also put forward new requirements for film performance. The new requirements have promoted the development of cathodic arc ion plating technology, producing a variety of products with excellent performance.
——This article was released by Guangdong Zhenhua Technology, a manufacturer of optical coating machines.
Post time: Apr-22-2023