尖晶石面板投影管中屏与锥的封接研究

Sealing of Spinel-to-Glass for Projection Cathode Ray Tube

透明尖晶石陶瓷面板投影管的屏和锥采用了低熔点玻璃封接。给出了封接结构、所用屏、低熔点玻璃和锥的材料特性。分析了封接中材料匹配、浸润性以及再结晶等原理,叙述了封接工艺。检测证实,获得了性能良好的封接结果。

A cathode-ray-tube （CRT） faceplate made of transparent spinel （MgAI204） is developed. Spinel exhibits a lower thermal expansion coefficient than conventional glass faceplate. To match with the spinel, a low temperature frit glass and funnel glass with similar thermal expansion are developed. The stress free process makes the sealing strong and leakage proof.