Al2O3-Dy2O3-SiO2 ternary system rare-earth sealing material and preparation method of glass sealing ring thereof

Abstract

The invention relates to an Al2O3-Dy2O3-SiO2 ternary system rare-earth sealing material and a preparation method of a glass sealing ring thereof, which is designed aiming at the technical problem that the rare-earth sealing material is not good enough in the sealing process of the traditional ceramal halide lamp arc tube. The Al2O3-Dy2O3-SiO2 ternary system rare-earth sealing material puts emphasis on comprising the following components in percentage by weight: 15-25% of Al2O3, 55-65% of Dy2O3 and 20-25% of SiO2. The glass manufacture process flow of the Al2O3-Dy2O3-SiO2 ternary system rare-earth sealing material comprises the following steps of: weighing according to the weight ratio of materials; mixing the materials; melting at high temperature; keeping the temperature; adding to a liquid nitrogen box; and obtaining ternary system rare-earth glass. The manufacture process flow of the glass sealing ring comprises the following steps of: crushing the ternary system rare-earth glass by air flows; sifting; granulating; compressing for forming; roasting; degassing in vacuum; and obtaining the ternary system rare-earth glass sealing ring. The Al2O3-Dy2O3-SiO2 ternary system rare-earth sealing material and the process are suitable for a ceramal halide lamp arc tube, a ceramal halide lamp and the manufacture of rare-earth sealing materials, welding materials and glass rings of the ceramal halide lamp arc tube.

Description

Technical field [0001] The invention relates to a glass sealing ring material for a ceramic metal halide lamp arc tube, which is an Al 2 O 3 -Dy 2 O 3 -SiO 2 Ternary rare earth sealing material and preparation method of glass sealing ring. Background technique [0002] In the early 1990s abroad, a rare earth oxide sealing material composed of rare earth oxide as the main material appeared, through which the airtight sealing of the arc tube of the ceramic metal halide lamp was realized. Among them, with Al 2 O 3 -Dy 2 O 3 -SiO 2 The basic rare earth sealing material has been successfully applied to the manufacturing process of the ceramic metal halide lamp arc tube, achieving industrialization. The ceramic metal halide lamp produced by the rare earth sealing material combined with the ceramic metal halide lamp arc tube process has the characteristics of high color rendering, high luminous efficiency, good light color and small size, and becomes a lighting source. One of the most ...

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Problems solved by technology

[0006] In order to meet the above-mentioned requirements, the purpose of the present invention is to provide a kind of rare earth sealing material suitable for ceramic metal halide lamp arc tubes to the art, namely Al 2 o 3 -Dy 2 o 3 -SiO 2 Ternary rare earth sealing material, which can solve the problem of poor rare earth sealing material in the airtight sealing process of the existing ceramic metal halide lamp arc tube, and the performance of the ceramic metal halide lamp arc tube after airtight sealing Unfavorable technical problem, the present invention is achieved by the following technical solutions

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