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1引言焊接是金属件间相互连接的一种方法。电焊(常称电弧焊)是利用电能产生的高温电弧使金属件加热熔化、牢固连接在一起。在焊接作业中,常常因各种原因发生火灾。2010年11月15日,上海市静安区一教师公寓在装修时,因违章电焊引发火灾,这场大火吞噬了58条鲜活的生命,酿成了一起特别重大火灾事故,给人们心理造成强烈的刺激和震撼,引起社会各界的广泛关注。2电焊的火灾危险性焊接属于明火作业,具有高温、炽热、易燃、飞溅的特点,电焊火灾基本
1 Introduction Welding is a method of interconnecting metal parts. Welding (often referred to as arc welding) is the use of high-temperature electric arc generated by the metal pieces heated to melt, firmly connected together. In welding operations, often due to various reasons, a fire. November 15, 2010, Shanghai, Jing’an District, a teacher’s apartment during the renovation, due to illegal welding caused a fire, the fire engulfed 58 fresh life, resulting in a particularly serious fire, giving people a strong psychological Stimulus and shock, causing widespread concern in all sectors of society. 2 welding fire hazard Welding is open flame operation, with high temperature, hot, flammable, splashing characteristics of the basic welding fire