A plurality of piston rings 70 are set at intervals in the axial direction, on the outer circumference of a cylindrical member 6 of a coating jig 5. The coating jig 5 is supported to allow horizontal rotation and conveyed to the coating process by a chain conveyor 40. In the coating process, simultaneously...http://www.google.es/patents/US5516560?utm_source=gb-gplus-sharePatente US5516560 - Method for coating rings, coating equipment and coating jig
Method for coating rings, coating equipment and coating jig