我厂从日本引进的显象管生产线于1984年7月正式投产,不久便遇到排气合格率偏低的问题(仅达95％左右),直接影响了经济效益。通过质量分析,排气工序的主要废品是“氧化”废品,约占该工序废品总数的一半。所谓“氧化”就是在显象管电子枪表面形成深绿色的氧化层。因此,解决“氧化”,问题是提高排气合格率的关键。排气系统由隧道式烘箱、排气车、高频炉、控制箱组成。排气车通过烘箱自动进行排 Our factory imported from Japan CRT tube production line in July 1984 formally put into operation, shortly after they encounter the issue of low pass rate (only about 95%), a direct impact on economic efficiency. Through quality analysis, the major waste products in the exhaust process are “oxidized” waste, accounting for about half of the total waste in the process. The so-called “oxidation” is the electron tube in the picture tube to form a dark green oxide layer. Therefore, to solve the “oxidation”, the problem is to improve the pass rate of exhaust key. Exhaust system by the tunnel oven, exhaust cars, high-frequency furnace, control box. Exhaust car through the oven automatically row