论文部分内容阅读
引言低压荧光数码管实际上是一只在阳极导电膜上涂复了电导率较高的荧光粉ZnO:zn的真空三极管。制管实践证明,管内真空度的高低是影响管子亮度及其寿命的重要因素。因此,如何提高和保持器件的真空度是低压荧光数码管生产中必须认真解决的问题。提高器件真空度的措施很多,除了各零部件必须经过认真严格的清洗和去气处理外,在排气工序中还可以采取提高系统的极限真空。适当提高烘箱温度、延长保温时间等措施。即使如此,管内真空度还将受各种因素的限制而下降。所以,我们认为从排气车上封离下来的管子,真空度并不太高,虽然有部分残余气体
Introduction Low-voltage fluorescent digital tube is actually a coating on the anode conductive film coated with a high-conductivity phosphor ZnO: zn vacuum transistor. Pipe practice has proved that the level of vacuum tube is an important factor affecting the tube brightness and life expectancy. Therefore, how to improve and maintain the vacuum degree of the device is a problem that must be seriously solved in the production of low-pressure fluorescent digital tube. There are many measures to improve the degree of vacuum of the device. In addition to serious and rigorous cleaning and degassing of the components, the ultimate vacuum of the system can also be taken during the venting process. Appropriate increase oven temperature, extend the holding time and other measures. Even so, the degree of vacuum in the tube will also be subject to various factors to reduce. Therefore, we think that the vacuum sealed off from the exhaust truck is not too high, although some of the residual gas