중고속 전철용 합금 주철 제동 디스크 개발 및 성능 검증에 관한 연구

초록

As the speed of railway vehicle grow up, the brake energy become quite higher. Generally, the material for the brake disc at high brake speed over 300km/h is cast alloy steel or forged steel. Steel has higher mechanical and thermal strength than cast iron, but it is more expensive and difficut to produce through casting. In this study, the brake disc for the brake speed up to 200km/h was developed by using special cast alloy iron of which strength and abrasion hardness is higher than gray cast iron. Full scale brake test was carried out to verify the perfomance and safety as a high speed brake disc.