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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

Active Publication Date: 2021-08-20
CDGM GLASS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a glass forming device, which aims to solve the problem that the moisture in the air is easily converted into OH in the process of forming large-diameter neodymium-doped phosphate laser glass in the existing glass forming device. - The form enters the surface and subsurface layers of the glass, causing cracks on the glass surface

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A large-diameter neodymium-doped phosphate laser glass is formed, and the process is as follows:

[0058] Firstly, the above-mentioned glass forming device is selected as the equipment for forming large-diameter neodymium-doped phosphate laser glass 800;

[0059] Secondly, the discharge end of the glass leaking tube 700 is penetrated into the forming cavity 600 through the leaking tube hole 410 and corresponds to the rear guide surface of the plug 300; then the annealing furnace is set on the rear side of the glass forming device , and corresponds to the rear end of the molding cavity 600;

[0060] Next, the protective gas is continuously introduced into the molding cavity 600 through the protective gas pipeline 500, and the flow rate of the introduced protective gas is controlled at 40L / h;

[0061] Next, the molten glass at 990°C in the discharge tank is sent into the molding cavity 600 through the glass leaking tube 700, the temperature of the molten glass flowing ou...

Embodiment 2

[0065] A large-diameter neodymium-doped phosphate laser glass is formed, and the process is as follows:

[0066] Firstly, the above-mentioned glass forming device is selected as the equipment for forming large-diameter neodymium-doped phosphate laser glass 800;

[0067] Secondly, the discharge end of the glass leaking tube 700 is inserted into the molding cavity 600 through the leaking tube hole 410 and corresponds to the rear guide surface of the plug 300;

[0068] Next, the protective gas is continuously introduced into the molding cavity 600 through the protective gas pipeline 500, and the flow rate of the introduced protective gas is controlled at 90L / h;

[0069] Next, the molten glass at 980°C in the discharge tank is sent into the molding cavity 600 through the glass leaking tube 700, and the temperature of the molten glass flowing out of the glass leaking tube 700 is 930°C, and the temperature on the left and right sides of the molding cavity 600 is Heating is carried ...

Embodiment 3

[0073] A large-diameter neodymium-doped phosphate laser glass is formed, and the process is as follows:

[0074] Firstly, the above-mentioned glass forming device is selected as the equipment for forming large-diameter neodymium-doped phosphate laser glass 800;

[0075] Secondly, the discharge end of the glass leakage tube 700 is penetrated into the forming cavity 600 through the leakage tube hole 410 and corresponds to the rear side guide surface of the plug 300; then the annealing furnace is arranged on the rear side of the glass forming device , and corresponds to the rear end of the molding cavity 600;

[0076] Next, the protective gas is continuously introduced into the molding cavity 600 through the protective gas pipeline 500, and the flow rate of the introduced protective gas is controlled at 60L / h;

[0077] Next, the molten glass at 990°C in the discharge tank is sent into the molding cavity 600 through the glass leaking tube 700, and the temperature of the molten gl...

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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.

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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Application Information

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IPC IPC(8): C03B19/00
CPCC03B19/00
Inventor 苏学剑莫大洪原保平于天来
Owner CDGM GLASS LLC
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