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一、前言缩短桥丝长度,是现代工业电雷管的结构特点之一。如表1所示,南斯拉夫电雷管的桥丝长度为1.2毫米,而日本和美国为2毫米。我国工业电雷管的桥丝长度,几十年来一直是4毫米左右。由表1的数据,可以看出国产工业电雷管的电引火机构与国外相比的某些差距。当前国外普通电雷管在电引火机构上的主要趋势是:短桥丝与细桥丝;发火冲能低。自七八年以来的两年中,在煤炭部供应局及有关火工厂的大力支持下,山东矿业学院与开封煤矿仪表厂相协作,曾在十六个火工厂中进行过雷管电参数的普查;同时,还在抚顺矿务局十一厂等八个火工厂对长、短桥丝雷管的电参数及秒量进行了比较广泛的对比试验。试
First, the preface Shorten the bridge wire length, is one of the structural features of modern industrial electric detonator. As shown in Table 1, the YSK bridge length was 1.2 mm, compared to 2 mm in Japan and the United States. Bridge length of industrial electric detonator in our country has been 4 millimeters or so for several decades. From the data in Table 1, we can see that some of the gaps between the electric ignition mechanisms of domestic industrial electric detonators and those abroad are compared. Current foreign general electric detonator in the fuse body on the main trends are: short bridge wire and fine bridge wire; fire Chong energy is low. In the two years since 1978, with the strong support from the Ministry of Coal Supply Bureau and the related fire factories, Shandong Institute of Mining cooperated with Kaifeng Coal Mine Instrument Factory and conducted census of detonator electrical parameters in 16 fire factories. ; At the same time, Fushun Bureau of Mines is also 11 plants and other fire plants on the long, short bridge wire electrical parameters and the amount of seconds carried out a more extensive comparison test. test