固体物质燃烧热测定中影响点火因素的研究

STUDIES INTO THE FACTORS AFFECTING THE IGNITION IN THE MEASUREMENT OF THE HEAT COMBUSTION OF SOLID MATTERS

对氧弹量热法测定固体物质燃烧热过程中影响点火的因素进行了系统的分析研究。提出了一种简单可靠的中心孔压片法。选择了适宜的点火条件（点火电流为３．０～３．５Ａ，点火电极间引火丝电阻为３．０～４．０）．实验证明效果良好。

The article presents a systematic study into the factors affecting the ignition in thecource of measurement of the heat of combustion of solid matters by means of oxygen.bomb calorimetricmethod The authors introduce a simple but reliable method,namely,centra一hole tabletprssing,They havesorted out the proper conditions of ignition:the appropriate firing current should be 3～3.5 A while the resis-tance of the pyrophoric wire between the igniter electrodes be 3～4 It is proved in the experiment that themethod is effective.