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자동차용 냉각기 고무호스의 노화거동과 미소경도 분석

Title
자동차용 냉각기 고무호스의 노화거동과 미소경도 분석
Other Titles
Degradation Behavior and Micro-hardness Analysis of a Coolant Rubber Hose for Automotive Radiator
Author
최낙삼
Keywords
Micro-hardness; IRHD-hardness; Thermal Oxidative Aging(열가속 산소노화); Electrochemical Degradation(전기화학적 노화); Coolant Rubber Hose(냉각기용 고무호스); EPDM(ethylene-propylene dine monmer)
Issue Date
2007-09
Publisher
대한기계학회
Citation
대한기계학회논문집 A, v. 31, No. 9, Page. 915 - 923
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.
URI
http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE00875402&language=ko_KRhttps://repository.hanyang.ac.kr/handle/20.500.11754/106893
ISSN
1226-4873
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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