• Metallizing Equipment Co Private Limited

Anti-Wear Coatings on Soft/Hard Metal Bearings

Metallizing Equipment Co Pvt Ltd (MECPL) has developed a process for Anti-Wear Coatings on Soft/Hard Metal Bearings. Bearings are made of wrought or cast metals to reduce frictional wear problems; but hence wear can be controlled up to certain limited level only. Thermal spray coating is the process where options of applying several materials like metals, alloys, cermets, ceramics, carbides, etc., are available as per the requirements of the surface. Coatings of a bearing material, which are hard and have high wear resistance. Hard bearing materials are used where the embedding of abrasive particles and self-alignment are not required and where lubrication may be marginal. The inherent nature of thermal spray coatings seems to provide additional benefits over comparable wrought or cast materials due to the porosity acting as a lubricant reservoir and the composite nature of included oxides and amorphous phases increasing wear resistance. Some coatings show relatively low macro hardness compared to their relative wrought or cast materials, but very often show improved wear resistance. The following coatings are commonly used: cermet coatings like tungsten carbide/cobalt and chromium carbide/nickel chromium; oxide ceramics like chromium oxide and alumina; molybdenum; and various hard alloys of iron, nickel, chromium or cobalt. Hence this way bearings can be gifted with a longer life which avoid any kind of wear coming its way. The company, by using its experienced expertise of more than 40 year can help users select the proper coating materials and process as per the requirements of their application. If required initially the company can do coating job works on components at its government approved R&D workshop and once satisfaction is achieved technology can be transferred with the economical products.