Chalcogenide glass and its preparation method and device

A technology of chalcogenide glass and preparation equipment, which is applied in glass manufacturing equipment, glass furnace equipment, glass forming, etc., which can solve the problems of difficulty in controlling the consistency of composition and performance and low melting efficiency, so as to ensure the consistency of composition and performance , long equipment life, eliminate the effect of phase separation

Active Publication Date: 2019-09-13
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a kind of induction melting equipment and melting method of chalcogenide infrared glass and the chalcogenide infrared glass prepared by it. Through the specially designed furnace body structure and process, the existing technology of chalcogenide glass Problems such as low smelting efficiency and difficulty in controlling the consistency of composition and performance can well realize the efficient smelting and batch preparation of high-quality chalcogenide glass, and further improve the practical level of infrared glass, so that it is more suitable for practical use

Method used

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  • Chalcogenide glass and its preparation method and device
  • Chalcogenide glass and its preparation method and device

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preparation example Construction

[0035] The present invention provides a preparation device for chalcogenide glass, including a melting module, a lifting module, a homogenizing module, a cooling module, a transmission module and a crucible, wherein the melting module includes a furnace cover, a furnace body, an intermediate frequency induction coil and Induction heating element, the furnace cover and the furnace body constitute a melting cavity, the bottom of the melting cavity is open, the intermediate frequency induction coil is located in the melting cavity, and the intermediate frequency induction coil makes the The heating element is heated by induction; the lifting module includes a lifting rod and a lifting control system, and the lifting module is used to drive the crucible to perform the first movement; the homogenizing module includes a holding furnace and a temperature control system; The transmission module includes a conveyor belt and a speed control system, and the transmission module is used to ...

Embodiment

[0054] This embodiment provides a process for preparing chalcogenide glass using the device for preparing chalcogenide glass provided by the present invention. Chalcogenide glass preparation equipment such as figure 1 shown.

[0055] Purification of ingredients: According to the design ratio, the required chalcogenide glass raw materials are weighed in the anaerobic and anaerobic glove boxes, mixed with the oxygen scavenger to form a batch, and loaded into the quartz glass crucible 4 . The purity of the raw materials used is better than 99.999%, and the particle size of the material is 2-5mm. In this embodiment, the quality of the raw material is 2 kg, and the volume of the crucible is 1.5 liters.

[0056] The quartz glass crucible is evacuated, and the vacuum degree is not more than 10 -3 Pa, and then bake the evacuated quartz glass crucible at 200-400° C. for 3-10 hours to purify the raw materials. After the purification is completed, the quartz glass crucible 4 is vacuu...

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Abstract

The invention provides chalcogenide glass as well as a preparation method and device thereof. The device comprises a melting module, a lifting module, a homogenizing module, a cooling module, a conveying module and a crucible, wherein the melting module comprises a furnace cover, a furnace body, medium-frequency induction coils and induction heating elements, a melting cavity is formed by the furnace cover and the furnace body, the bottom of the melting cavity is open, and the medium-frequency induction coils are located in the melting cavity; the lifting module is used for driving the crucible to perform first motion; the homogenizing module comprises a thermal insulation furnace and a temperature control system. With adoption of the device, the problems of low melting efficiency, high difficulty in control of composition performance consistency and the like of the chalcogenide glass in the prior art are solved effectively, efficient melting and batch preparation of high-quality chalcogenide glass can be realized well, and the practical level of infrared glass is further increased.

Description

technical field [0001] The invention relates to the technical field of infrared glass preparation, in particular to a high-efficiency smelting of high-quality chalcogenide glass, a batch production device, a preparation method and the prepared chalcogenide glass. Background technique [0002] Chalcogenide glass is a kind of infrared transparent material with excellent performance. Its composition is mainly composed of group VIA elements (S, Se, etc.), and it is formed by introducing elements such as Ge, Sb, and As. Chalcogenide glass has mid-to-far infrared transmission performance similar to that of single crystal germanium, and the infrared transmission range covers three infrared atmospheric windows in the 1-14 μm band; at the same time, it has good light-thermal stability characteristics, low temperature coefficient of refraction index, (single 10% to 30% of crystal germanium) and adjustable, which is conducive to improving the temperature adaptive ability of the infrare...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B5/02C03C3/32C03B5/185C03B19/00C03B25/00
Inventor 王琪赵慧峰祖成奎刘永华赵华曹亚帅
Owner CHINA BUILDING MATERIALS ACAD
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