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《Journal of Jiangxi Electrical University For Staff》 2003-01
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A New Method for Evaluating the Slack of Connecting Bolt in High Temperature and High Pressure

CAI Xin-ru(Jiangxi Electric Vocational and Technical College, Nanchang 330032,China)  
High temperature and high pressure bolt material steel-25Cr2Mo1V which is used widely in thermal power station. Due to its loose invalidation, often leads to brittleness fracture accident. Based on harm mechanics and integrated with nondestructive inspection theory. This paer proposes a solution which measure loose invalidation of bolt conjunctted high temperature and high pressure with ultrasonic and sound scatter character of harmed part, and quantitate the extend of damaged.
【CateGory Index】: O346.5
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