Analysis on Failure of Accumulator of Horizontal Cold-Chamber Die Casting Machine and Accident Prevention

Abstract:

This article provides a comprehensive post hoc analysis on the explosion of horizontal cold-chamber accumulator occurred in a company in Hangzhou in May 2014, which is considered as a pressure vessel explosion accident, but not a special equipment accident, and is thus determined as a production safety accident. Based on detailed analysis of working principle of horizontal cold-chamber die-casting machine, the article puts emphasis on working principle of bladder accumulator and deduces two possible causes of accident through thickness measurement, metallographic test, explosion energy estimation and mechanical test on the faulty accumulator. On the basis of accident analysis, the article presents that great importance should be attached to the safety in inflation of accumulator of die casting machine, to prevent similar accidents from happening again by improving the operation system.

• Periodical: Applied Mechanics and Materials (Volumes 635-637)
• Pages: 472-477
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.635-637.472
• Online since: September 2014
• Authors: Wen Wei Li*, Qiang Ye, Cheng Dai He
• Keywords: Accident Prevention, Accumulator, Die Casting Machine, Failure

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