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Low-hydroxy black quartz tube and preparation method of low-hydroxy black quartz tube

A quartz tube and low-hydroxyl technology, applied in the field of quartz tubes, can solve the problems of insufficient pressure resistance, insufficient safety, unreasonable raw material formula, etc., and achieve the effect of ensuring quality and performance, improving compressive strength, and improving safety performance.

Active Publication Date: 2014-11-05
JIANGSU SHENGDA QUARTZ PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its unreasonable raw material formula, there are certain deficiencies in pressure resistance, safety, etc.

Method used

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  • Low-hydroxy black quartz tube and preparation method of low-hydroxy black quartz tube

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Experimental program
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Effect test

Embodiment 1

[0025] Embodiment 1, a kind of low hydroxyl black quartz tube, it is made of the raw material of following percentage by weight:

[0026] Weight percent SiO 2 ≥99.95%, 98.90% of high-purity quartz sand with impurity weight content less than 20ppm;

[0027] Praseodymium oxide 0.1%; Aluminum nitrate 0.1%;

[0028] Cerium nitrate 0.1%; Neodymium nitrate 0.1%;

[0029] Copper oxide 0.1%; Sodium chloride 0.1%;

[0030] Ferric oxide 0.1%; Potassium nitrate 0.1%;

[0031] Europium oxide 0.1%; Aluminum oxide 0.1%;

[0032] Chromium trioxide or potassium dichromate 0.1%.

[0033] The preparation method steps are as follows: first, the raw material high-purity quartz sand is mixed with sodium chloride, ferric oxide, potassium nitrate, aluminum oxide, dichromium oxide or potassium dichromate, praseodymium oxide, aluminum nitrate, cerium nitrate, neodymium nitrate Stir and mix at room temperature according to the weight ratio; then add copper oxide and europium oxide to high-purity ...

Embodiment 2

[0034] Embodiment 2, a kind of low hydroxyl black quartz tube, it is made of the raw material of following percentage by weight: percentage by weight SiO 2 ≥99.95%, high-purity quartz sand with impurity weight content less than 20ppm, 96.5%;

[0035] Praseodymium oxide 0.01%; Aluminum nitrate 0.5%;

[0036] Cerium nitrate 0.01%; Neodymium nitrate 0.5%;

[0037] Copper oxide 0.01%; Sodium chloride 0.5%;

[0038] Ferric oxide 0.01%; Potassium nitrate 0.5%;

[0039] Europium oxide 0.01%; Aluminum oxide 0.5%;

[0040] Chromium trioxide or potassium dichromate 0.5%.

[0041] The low-hydroxyl black quartz tube can be prepared according to a conventional quartz tube drawing method.

Embodiment 3

[0042] Embodiment 3, a kind of low hydroxyl black quartz tube, it is made of the raw material of following percentage by weight:

[0043] Weight percent SiO 2 ≥99.95%, 97.44% of high-purity quartz sand with impurity weight content less than 20ppm;

[0044] Praseodymium oxide 0.5%; Aluminum nitrate 0.01%;

[0045] Cerium nitrate 0.5%; Neodymium nitrate 0.01%;

[0046] Copper oxide 0.5%; Sodium chloride 0.01%;

[0047] Ferric oxide 0.5%; Potassium nitrate 0.01%;

[0048] Europium oxide 0.5%; Aluminum oxide 0.01%;

[0049] Chromium trioxide or potassium dichromate 0.01%.

[0050]The preparation method steps are as follows: first, the raw material high-purity quartz sand is mixed with sodium chloride, ferric oxide, potassium nitrate, aluminum oxide, dichromium oxide or potassium dichromate, praseodymium oxide, aluminum nitrate, cerium nitrate, neodymium nitrate Stir and mix at room temperature according to the weight ratio; then add copper oxide and europium oxide to high-pu...

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Abstract

The invention relates to a low-hydroxy black quartz tube, which is prepared from the following ingredients in percentage by weight: at least 99.95 percent of SiO2, 94.5 to 99.89 percent of high-purity quartz sand with the impurity weight content less than 20ppm, 0.01 to 0.5 percent of praseodymium oxide, 0.01 to 0.5 percent of aluminum nitrate, 0.01 to 0.5 percent of cerous nitrate, 0.01 to 0.5 percent of neodymium nitrate, 0.01 to 0.5 percent of copper oxide, 0.01 to 0.5 percent of sodium chloride, 0.01 to 0.5 percent of ferric oxide, 0.01 to 0.5 percent of potassium nitrate, 0.01 to 0.5 percent of europium oxide, 0.01 to 0.5 percent of aluminum oxide and 0.01 to 0.5 percent of chromium sesquioxide or potassium dichromate. The invention also discloses a preparation method of the low-hydroxy black quartz tube. The quartz tube has the advantages of an ordinary black quartz glass tube and also has the advantage that the recipe and the proportioning are more reasonable, because various kinds of metal oxides and rare earth elements are added, the pressure resistance intensity is greatly improved, the service life of a lamp manufactured by the quartz tube is also greatly prolonged, and meanwhile, the safety performance is improved.

Description

technical field [0001] The invention relates to a quartz tube, especially a low-hydroxyl black quartz tube; the invention also relates to a preparation method of the low-hydroxyl black quartz tube. Background technique [0002] The Chinese published patent document with application number 200910232159.5 and publication number 101708949A discloses a low hydroxyl black quartz tube, which is made of the following raw materials in weight percentage: SiO 2 ≥99.90%, high-purity quartz powder with impurity content less than 30ppm, 75-99.5%; magnesium chloride 0.1-5%, titanium dioxide 0.1-5%, zinc chloride 0.1-5%; ferric oxide 0.1-5%; Cobalt 0.1 to 5%. This document also discloses a production method of a low-hydroxyl black quartz tube. Although the above-mentioned publications can directly produce black quartz tubes and form a good coloring effect, they can completely replace the outer-coated black quartz tubes. However, due to the unreasonable formula of its raw materials, ther...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/06C03B20/00
Inventor 段玉伟段其九朱俊儒
Owner JIANGSU SHENGDA QUARTZ PROD CO LTD
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