CRT封接用低熔点封接玻璃粉性能不稳定性分析

Quality Analysis of the Low Melting-Point Glass Powder for CRT Sealing

对用于显像管屏、锥封接的低熔点玻璃粉(简称低玻粉)在使用过程中出现的批与批之间涂敷性能差别比较大的现象进行了分析。研究发现低玻粉的粉体在空气中性质不稳定,容易借助水的作用发生吸附和团聚,使其堆积密度降低;低玻粉的含水量对低玻粉膏体流动性有显著的影响,万分之几的水分波动就能够造成其膏体的流动性波动。

The quality instability phenomenon of low melting-point glass powder for CRT sealing was studied. The experiments showed that the powder is instability. Bulk density of the powder trended to fall because the adsorption of the powder grains, and then achieved steady. The further study showed that water had effected on the fluidity of the low melting-point glass powder paste.