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106.在不同温度下爆破器材的性能有哪些变化? 答:温度对爆破器材有很大影响。将100发雷管在一定温度下连续受热48小时,把有一发发生爆炸的最低温度作为雷管的自爆临界温度。经大量试验,普通工业雷管的自爆临界温度一般为100～110℃之间。温度超过100℃普通雷管会发生爆炸;温度低于100℃,普通工业雷管的冲击摩擦感度、发火电流和电桥完好率也会发生变化。当温度为30℃时,冲击试验的爆炸率为20％;温度80℃时,爆炸率提高到90％。温度低于70℃,保持恒温17小时以内,电桥完好率为100％;温度在80～90℃时,保持恒温24小时后,电桥完好率只有43.5％。温度增高,最小发火电流下降,对杂电、静电的
106. What are the performance of blasting equipment at different temperatures? A: The temperature of blasting equipment has a great impact. The 100 hair detonators were heated at a constant temperature for 48 hours continuously, and the lowest temperature at which an explosion occurred was taken as the detonation critical temperature of the detonator. After a large number of tests, the general industrial detonator blew the critical temperature is generally between 100 ~ 110 ℃. Common detonators will explode when the temperature exceeds 100 ℃. When the temperature is lower than 100 ℃, the impact friction sensitivity, sparking current and bridge intact rate of common industrial detonators will also change. When the temperature is 30 ℃, the impact test of the explosion rate of 20%; 80 ℃, the explosion rate increased to 90%. When the temperature is lower than 70 ℃, within 17 hours of maintaining the constant temperature, the bridge intact rate is 100%. When the temperature is between 80 and 90 ℃, maintaining the constant temperature for 24 hours, the bridge integrity rate is only 43.5%. Temperature increases, the minimum firing current drops, the miscellaneous electricity, static electricity