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Infrared glass preparation method and water removing device thereof

A technology of infrared glass and glass, which is applied in the combination of methods to dry solid materials, lighting and heating equipment, drying, etc., can solve the problem that it is difficult to effectively remove hydrogen and oxygen impurities in infrared glass, and achieve the effect of eliminating hydrogen impurities

Inactive Publication Date: 2017-08-08
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing infrared glass and its water removal device to solve the problem that it is difficult to effectively remove hydrogen and oxygen impurities in infrared glass in the prior art

Method used

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  • Infrared glass preparation method and water removing device thereof
  • Infrared glass preparation method and water removing device thereof
  • Infrared glass preparation method and water removing device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: Taking the component as As 2 S 3 The preparation of high-purity chalcogenide glass is taken as an example, including the following specific steps:

[0038] 1) According to As 2 S 3 The formula takes sulfur and arsenic elemental raw materials with a purity of 99.999%, raises the temperature to 800°C in a traditional swing furnace, and melts it for 12 hours to obtain glass clinker;

[0039] 2) As 2 S 3 The glass clinker is placed in the raw material pipe 4, the inert gas inlet pipe 1 and the chlorine gas inlet pipe 2 are connected to the nitrogen pipeline and the chlorine gas pipeline respectively, and the nitrogen gas is passed first, the flow rate is 30ml / min, and the time is 120 minutes;

[0040] 3) Keep the inert gas flow rate, turn on the heating furnace 3, heat up to 500°C, turn on the chlorine gas, the flow rate is 10ml / min, and the time is 40 minutes;

[0041] 4) Keep the inert gas flow rate, stop feeding chlorine gas, stop heating, and wait for t...

Embodiment 2

[0044] Embodiment two: take component as Ge 20 Ga 5 Sb 10 S 65 The preparation of high-purity chalcogenide glass is taken as an example, including the following specific steps:

[0045] 1) According to Ge 20 Ga 5 Sb 10 S 65 The formula takes germanium, gallium, antimony and sulfur elemental raw materials with a purity of 99.999%, raises the temperature to 950°C in a traditional swing furnace, and melts them for 12 hours to obtain glass clinker;

[0046] 2) Add Ge 20 Ga 5 Sb 10 S 65 The glass clinker is placed in the raw material pipe 4, and the inert gas inlet pipe 1 and the chlorine gas inlet pipe 2 are connected to the argon and chlorine gas pipelines respectively, and the argon gas is passed first, with a flow rate of 80ml / min for 30 minutes;

[0047] 3) Keep the inert gas flow rate, turn on the heating furnace 3, heat up to 650°C, turn on the chlorine gas, the flow rate is 4ml / min, and the time is 100 minutes;

[0048] 4) Keep the inert gas flow rate, stop feed...

Embodiment 3

[0051] Embodiment three: the composition is 60TeO 2 The preparation of high-purity tellurite glass of –20BaO–20ZnO is taken as an example, including the following specific steps:

[0052] 1) According to 60TeO 2 –20BaO–20ZnO formulation weighs TeO with a purity of 99.99% 2 , BaO and ZnO raw materials, put into a gold crucible, place in a muffle furnace, heat up to 800°C, and melt for 2 hours to obtain glass clinker;

[0053] 2) Add 60TeO 2 –20BaO–20ZnO glass clinker is placed in the raw material pipe 4, the inert gas inlet pipe 1 and the chlorine gas inlet pipe 2 are respectively connected to the helium and chlorine gas pipelines, and the helium gas is passed first, the flow rate is 50ml / min, and the time is 60 minutes ;

[0054] 3) Keep the inert gas flow rate, turn on the heating furnace 3, heat up to 700°C, turn on the chlorine gas, the flow rate is 6ml / min, and the time is 60 minutes;

[0055] 4) Keep the inert gas flow rate, stop feeding chlorine gas, stop heating, a...

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Abstract

The invention belongs to the field of infrared optical glass preparation, specifically relates to an infrared glass preparation method and a water removing device thereof and aims at solving the defect that impurities of hydrogen and oxygen in the infrared glass cannot be removed effectively in the prior art. The water removing device comprises an inert gas inlet pipe, a chlorine inlet pipe, a heating furnace, a raw material pipe and a gas outlet pipe, wherein the inert gas inlet pipe, the chlorine inlet pipe and the gas outlet pipe are each communicated with the raw material pipe, and the heating furnace is arranged outside the raw material pipe. Chlorine is utilized to remove water of infrared glass, the chlorine can effectively remove absorption peaks generated at 2.9 and 4.3 micrometer positions by O-H and H-S bonds, and practical foundation of the infrared glass is established. The technological principle is that a strong oxidant, namely of the chlorine, is mainly utilized to snatch the hydrogen impurity in the glass, hydrogen chloride gas is generated to be exhausted out glass melting liquid, and the hydrogen impurity is eliminated.

Description

technical field [0001] The invention belongs to the field of infrared optical glass preparation, and in particular relates to a method for preparing infrared glass and a water removal device thereof. Background technique [0002] Infrared optical glass has important application value in the fields of modern national defense, space exploration, mid-to-far infrared light sources, and infrared imaging. For example, the guidance of various missiles, infrared early warning, observation and targeting of high-energy beam interception weapons, etc. are inseparable from infrared window materials; the working band of the high-resolution earth observation system includes the mid-infrared band, and infrared optical glass is also required to make its infrared window; For civilian use, infrared night vision devices and infrared night vision systems assembled in high-end cars all need infrared optical glass as eyes. [0003] At present, the main bottleneck that restricts the wide applicat...

Claims

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Application Information

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IPC IPC(8): C03C4/10C03C3/32C03C3/12F26B7/00
CPCC03C4/10C03C3/122C03C3/321F26B7/00
Inventor 郭海涛许彦涛肖旭升彭波陆敏
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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