자동차용 냉각기 고무호스의 노화거동과 미소경도분석Degradation Behavior and Micro-hardness Analysis of a Coolant Rubber Hose for Automotive Radiator
- Other Titles
- Degradation Behavior and Micro-hardness Analysis of a Coolant Rubber Hose for Automotive Radiator
- Authors
- 곽승범; 최낙삼; 신세문; 신외기
- Issue Date
- Oct-2007
- Publisher
- 대한기계학회
- Keywords
- Micro-hardness(미소경도); IRHD-hardness(IRHD 경도); Thermal oxidative aging(열가속 산소노화); Electro-chemical degradation(전기화학적 노화); Coolant rubber hose(냉각기용 고무호스); EPDM(ethylene-propylene dine monomer)
- Citation
- 대한기계학회 춘추학술대회, pp.15 - 20
- Indexed
- OTHER
- Journal Title
- 대한기계학회 춘추학술대회
- Start Page
- 15
- End Page
- 20
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/43367
- Abstract
- Rubber hoses for automobile radiators are apt to be degraded and thus failed due to the influence of contacting stresses of air and coolant liquid under thermal and mechanical loadings. The aging behaviors of the skin part of the hoses due to thermo-oxidative and electro-chemical stresses were experimentally analyzed. Through the thermo-oxidative aging test, it was shown that the surface hardness IRHD(International Rubber Hardness Degrees) of the rubber increased with a considerable reduction of failure strain as the aging time and temperature increased. On account of the penetration of coolant liquid into the skin part influenced by the electro-chemical degradation(ECD) test the weight of the rubber hose increased, whereas their failure strain and IRHD hardness decreased. The hardness of the hose in the side of the negative pole was the most deteriorated at the test site of the hose skin just below the coolant surface.
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Collections - COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF MECHANICAL ENGINEERING > 1. Journal Articles
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