Glass forming device and forming method for large-diameter neodymium-doped phosphate laser glass

A glass forming, neodymium phosphate technology, applied in glass forming, glass manufacturing equipment, manufacturing tools, etc., can solve problems such as glass surface cracks
CN113277713AActive Publication Date: 2021-08-20CDGM GLASS LLC
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CDGM GLASS LLC
Publication Date
2021-08-20

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Abstract

The invention belongs to the technical field of glass forming, particularly discloses a glass forming device and a forming method for large-diameter neodymium-doped phosphate laser glass. The invention aims to basically avoid cracks on a glass surface caused by moisture in air while ensuring glass forming effect. According to the glass forming device, a defined forming cavity can be closed as much as possible by arranging a cover plate; protective gas can be introduced into the forming cavity through an arranged protective gas pipeline so as to expel air in the forming cavity and protect molten glass to be formed, so moisture in the air is prevented from entering the surface and the sub-surface layer of glass again in the form of OH<->, and the generation of glass surface cracks caused by entry of the moisture is basically avoided; and meanwhile, a preheating pipeline section of the protective gas pipeline is distributed on the cover plate in a winding manner, so the protective gas can be preheated by utilizing heat transferred by the cover plate, and the situation that the normal forming of the glass is influenced due to the fact that the temperature of the protective gas is too low and the forming temperature in the forming cavity is greatly disturbed is avoided.
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Description

technical field

[0001] The invention belongs to the technical field of glass forming, and in particular relates to a glass forming device and a forming method of large-diameter neodymium-doped phosphate laser glass. Background technique

[0002] Neodymium-doped phosphate laser glass is a glass-based solid-state laser material, which is widely used in various types of solid-state lasers, and is the main laser material for high-power and high-energy lasers. In order to improve the fluorescence lifetime and quantum rate, reduce the non-radiative energy transition, and improve the system gain capability, the OH in the glass needs to be eliminated during the Nd-doped phosphate laser glass melting process. - .

[0003] At present, Nd-doped phosphate laser glass is formed by glass forming equipment. Existing glass forming device generally comprises bottom mold, two side molds that are respectively arranged on the left and right sides of bottom mold, and the plug that is arranged ...

Claims

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