Leaking molding device and method for low-viscosity optical glass

A leakage forming device and leakage forming method technology, which is applied in the field of optical glass leakage forming, can solve the problems of glass liquid tumbling, glass liquid viscosity, volatilization, etc., and achieve the effect of inhibiting crystallization and improving quality

Active Publication Date: 2013-07-10
HUBEI NEW HUAGUANG NEW INFORMATION MATERIALS CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional leakage molding method has the following disadvantages: since the mold used is open, the volatile components in the molten glass can evaporate from the molten glass through the opening of the mold
Because...

Method used

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  • Leaking molding device and method for low-viscosity optical glass
  • Leaking molding device and method for low-viscosity optical glass
  • Leaking molding device and method for low-viscosity optical glass

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Embodiment Construction

[0048] The following will refer to Figure 1 to Figure 3 The structure of the leakage forming device 100 according to the present invention will be described. Such as Figure 1 to Figure 3 As shown, the leak forming device 100 according to the present invention includes a leak pipe 1 , a cooling buffer cavity 2 and a drawn forming pipe 3 .

[0049] combine Figure 1 to Figure 3 It can be seen that the leakage pipe 1 is located at the top, the upper end of the leakage pipe 1 is connected to the discharge port (not shown in the figure) of the glass melting furnace, and the lower end of the leakage pipe 1 is connected to the cooling buffer chamber 2 . The cooling buffer chamber 2 is provided with a chamber inlet 201 and a chamber outlet 202 , the chamber inlet 201 is connected to the lower end of the leakage pipe 1 , and the chamber outlet 202 is connected to the upper end of the drawn pipe 3 . The part of the cooling buffer cavity 2 close to the side of the drawn tube 3 has a...

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Abstract

The invention provides a leaking molding device and method for low-viscosity optical glass. The leaking molding device (100) comprises a leaking pipe (1), a cooling buffer cavity (2) and a drawing molding pipe (3), wherein the wall of the side, close to the leaking pipe (1), of the cooling buffer cavity (2) is provided with a pressure adjusting hole (203); the pressure adjusting hole (203) is connected with one end of a pressure adjusting pipe (4); excepting a cavity inlet (201), a cavity outlet (202) and the pressure adjusting hole (203), the cooling buffer cavity (2) is of a sealed structure; and the on and off of the pressure adjusting pipe (4) are controlled by a control system; and when the pressure adjusting pipe (4) is in an on state, under the control of the control system, the pressure adjusting pipe (4) exhausts or aerates the cooling buffer cavity (2). The leaking molding method performs leaking molding on the low-viscosity optical glass by using the leaking molding device (100).

Description

technical field [0001] The invention belongs to the technical field of leak forming of optical glass, and in particular relates to a leak forming device and a molding method for low-viscosity optical glass rods. Background technique [0002] With the increasingly fierce competition in the market and the continuous development of technology, the requirements for optical glass wool are getting higher and higher from sheet metal, secondary molded parts, primary molded parts to bar material and gob material. The current optical glass molding methods mainly include sheet material, gob material and bar material. Sheet metal forming has been very backward, its material utilization rate is very low, and it needs many processing steps, but its material has strong versatility, so it is still the main optical glass forming method at present. Gobs are very suitable for precision molding of aspheric surfaces, but gobs also have great limitations. For example, for some optical components...

Claims

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Application Information

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IPC IPC(8): C03B7/08C03B15/14
Inventor 张小东张卫
Owner HUBEI NEW HUAGUANG NEW INFORMATION MATERIALS CO LTD
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