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COATINGS
Based on pioneering research and development, Mohawk Innovative Technology, Inc.(MiTi) has created a series of solid film lubricant coatings, suitable for high temperatures. Korolon™ 700, Korolon™ 800, and Korolon™ 1350 are all solid film lubricant coatings suitable as components in high speed and high temperature rotating machinery. The coatings are designed specifically to withstand high temperatures ranging from 500oF - 1350oF at high speeds, while maintaining a low Coefficient Of Friction. Development in production methods and processing methods, ensures a practical and cost-effective advance in the manufacturing of Korolon™ and other solid film lubricants. Mohawk Innovative Technology, Inc. has migrated research and development to incorporate full manufacture of high temperature coatings, such as Korolon™. Analytical facilities working towards research and development include optical microscopy and scanning, and transmission electron microscopy. A brief discussion is given below. Further information is available at Korolon.com.
COATING DEVELOPMENT, MANUFACTURING AND QUALITY
Ongoing research related to production and processing ensures practical and cost-effective methods of providing high temperature coatings. MiTi has transitioned from research and development to full manufacture of high temperature coatings, specifically designed for high speed, high temperature rotating machinery.
SOLID FILM LUBRICANTS
The solid film lubricants are materials with inherent lubricating properties, which are firmly bonded to the surface of a substrate. They prevent surface to surface contact, reducing friction and wear between mating surfaces. The lubricant actually becomes a protective layer between the two mating surfaces. The solid lubricants are made from a variety of lubricating materials including Molybdenum Disulfide, Tungsten Disulfide, Boron Nitride, Silicon Carbide, Silver and Polytetrafluoroethylene.
ADVANTAGES OF SOLID FILM LUBRICANTS:
- Extends wear life
- Lowers coefficient of Friction
- Prevents galling, fretting and seizing
- Withstands extreme temperatures
- Provides corrosion resistance
- Provides high performance lubrication
- Provides dry lubrication
COATING APPLICATION METHODS
The solid film lubricants are applied by a conventional spray gun process. Optimum coating thickness is 0.001inch (25.4 microns).
RESEARCH AND DEVELOPMENT
Substantial investment has been made into the coating research and development facilities at MiTi. Five spray gun coating systems are dedicated to research programs into both new and improved coating and equipment.
COATING TEST EQUIPMENT
The laboratory includes facilities for friction and wear testing using a coating start-up and shutdown test rig and a high speed, high temperature tribometer.designed by MiTi.
START-UP AND SHUTDOWN COATING TESTER HSB-20
The HSB-20 is a 20,000 rpm, room temperature wear tester used to evaluate coatings subject to unidirectional sliding under a variety of loads. Measured parameters including starting/coast down torque, steady state torque and speed. The nominal test journal diameter is 35mm.
HIGH-SPEED, HIGH TEMPERATURE TRIBOMETER HTP-40
This sophisticated tribometer is capable of testing at high speeds of 40,000 rpm and temperatures up to 1500oF and is readily modified to permit either pin-on-disk, roller-on-disk or pad on disk testing. Wear testing can be done in a unidirectional test. The computer software enables recording of friction against time or number of test cycles.
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