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고주파 열처리 공정 기술을 통한 고압용 경량 파이트 제조 공정 기술 개발
문민석(MinSeok Moon),유명한(MyoungHan Yoo),송준혁(JoonHyuk Song),박나라(NaRa Park),노종일(JongIl Rho),오제하(JeHa Oh),김원태(WonTae Kim),문상돈(SangDon Moon),김은성(EunSung Kim) 한국자동차공학회 2018 한국자동차공학회 지부 학술대회 논문집 Vol.2018 No.5
Concrete pump truck has typically distributed a weight balance on the two positions. The upper-part include the conveying pipe and the joints zone. The lower-part is included in the outrigger to enhance the position balance concerning the concrete pump truck. The life cycle of conveying pipe depends on the pipe wall layer state. A sing-wall pipe has a shot lifecycle and a low price. A Multi-wall pipe has a double lifecycle than single-wall pipes and a high price. This experiment is focused on the using a single-wall pipe and changing the microstructure thorough the high-frequency heat-treatment. High-frequency heat-treatment will supply the long lifecycle with a cheap single-wall pipe because of the microstructure of inside hardened in AISI 1045. After heat-treatment, the mechanical property of specimen are examined through the tensile strength, elongation, and hardness test. Additionally, the wear resistance evaluation has evaluated to the sand abrasion resistance.