目的 研究点火具的点火压力随储存时间、地区的变化规律.方法 对在正常储存条件下分别储存于北方和南方地区,储存年限分别为5,10,15,19年的某型点火具进行点火压力-时间关系试验.结果 点火压力随时间的增加先上升后减小,北方地区的最大压力下降了0.4 MPa左右,南方地区的最大压力下降了0.3 MPa左右.在北方地区储存的点火具的最大压力时间要长于在南方地区储存的点火具最大压力时间.结论 点火具在长时间储存和不同地区储存的参数会发生变化,但是参数的变化在允许的范围之内,地区的差异会对点火具的性能产生一定的影响,影响的主要因素之一是温度.%Objective To research the igniter on its ignition pressure changing with the storage time and area.Methods The igniter stored in the north and south area under normal conditions for 5, 10, 15, 19 years was tested for ignition pres-sure-time relation.Results The ignition pressure first increased and then decreased with the increase of time. The max pressure of the igniter which stored in the north declined about 0.4 MPa; that stored in the south decreased about 0.3 MPa. But the pressure time of the igniter stored in the north was longer than that stored in the south.Conclusion The ignition pressure changes with the storage time and the area, but the variation is allowed. Regional different has certain influences on performance of igniter. Temperature is one of the main factors.
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