Упрочнения деталей двигателей внутреннего сгорания методами ионно-плазменных и лазерных технологий

Abstract

The results of experimental research on the use of laser and ion-plasma technology for strengthening of details of injectors and piston rings for internal combustion engines are considered. Combined hardening of parts injectors internal combustion engines (laser processing channels of a sprayer and ion-plasma spraying cone needle) has improved resource. Considered the com-bined hardening diesel injectors ensure the improvement of their life with 3 600 up to 8 000 hours. The research results allow to recommend the processes of ion-plasma hardening for processing piston rings medium-speed diesel engines, Joint wear pairs molybdenum coated 2.2-2.5 times less than in pairs, where piston ring chrome. Joint wear pairs with laser hardening 1.6-1.8 times less than in pairs, where piston ring chrome. The authors, for the first compression ring better use of ion-plasma coating, and all the rest - processing laser.