A kind of production method of rose-colored rare earth doped quartz tube with low hydroxyl

Abstract

The invention discloses a production method of a low-hydroxyl rosy rare-earth-doped quartz tube. The invention belongs to the technical field of quartz tube production. The method comprises the steps that: (1) raw materials are selected, wherein high-purity quartz is selected; (2) stirring is carried out, wherein various rare earth nitrating agents such as samarium nitrate are added into the raw material, and mixing and stirring are carried out; (3) dilution is carried out, wherein strong hydrofluoric acid is added, and a dilution reaction is carried out; (4) doping is carried out, wherein the material is doped with a high-purity quartz powder material; and the mixture is placed into a high-temperature-resistant quartz tube; (5) bake-drying is carried out, wherein high-temperature continuous bake-drying is carried out, such that the various rare earth nitrating agents completely penetrating into the quartz powder material; (6) melting is carried out, wherein the material is molten in a continuous melting furnace; through tube-drawing machine drawing, an integrally colored rosy quartz tube is obtained; and (7) decarboxylation is carried out, wherein the rosy quartz tube is subjected to high-temperature decarboxylation in a vacuum decarboxylation furnace. The method is mainly used in the aspect of quartz tube manufacturing.

Description

technical field [0001] The invention relates to the technical field of quartz tube manufacture, in particular to a production method of a rose-colored rare earth-doped quartz tube with low hydroxyl. Background technique [0002] The technical content closest to the red quartz tube: the red quartz tube produced by using high-purity quartz raw materials doped with rare earth element oxides. Magnesium 0.1-5%, after being mixed with high-purity quartz raw materials and evenly dried, red quartz tubes can be produced directly after being put into a continuous melting furnace, but the coloring effect is not good, the error of the tube diameter range and wall thickness is large, and it is easy to fade. Inconsistent color uniformity. [0003] The technical content closest to the blue quartz tube: the blue quartz tube produced by doping rare earth element oxides with high-purity quartz raw materials. Titanium 0.1-5%, cobalt oxide 0.1-5%, after being mixed with high-purity quartz raw...

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Problems solved by technology

[0002] The technical content closest to the red quartz tube: the red quartz tube produced by using high-purity quartz raw materials doped with rare earth element oxides. Magnesium 0.1-5%, after being mixed with high-purity quartz raw materials and evenly dried, red quartz tubes can be produced directly after being put into a continuous melting furnace, but the coloring effect is not good, the error of the tube diameter range and wall thickness is large, and it is easy to fade. Inconsistent color uniformity

[0003] The technical content closest to the blue quartz tube: the blue quartz tube produced by doping rare earth element oxides with high-purity quartz raw materials. Titanium 0.1-5%, cobalt oxide 0.1-5%, after being mixed with high-purity quartz raw materials and evenly dried, the blue quartz tube can be directly produced after being put into a continuous melting furnace, but the coloring effect is not good, and the range of tube diameter and wall thickness The error is large, and it is easy to fade, and the color uniformity is inconsistent