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Purifying installation and method for glass forming die

A purification device and purification equipment technology, which is applied in glass forming, glass pressing, glass production, etc., can solve the problems of inability to apply the deformation of molten glass, difficulty in continuous forming, and small scope of application.

Inactive Publication Date: 2006-08-02
OHARA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, although this mold regeneration method is considered to be effective for glass forming at a temperature below the yield point, it may not be suitable for forming from molten glass or forming that requires a large amount of deformation.
In addition, continuous molding is difficult due to the premise that the molding device is stopped during grinding
In addition, since the premise is not to form a protective film on the mold, the applicable range may be small

Method used

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  • Purifying installation and method for glass forming die
  • Purifying installation and method for glass forming die
  • Purifying installation and method for glass forming die

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] Such a molding die is used: the base material of the die 6 is super-strength steel, the roughness of the molding surface 6a is less than 0.05 μm, and about 1 μm of tantalum carbide (TaC) is used as a protective film. On the glass forming device 21, the mold 6 is heated to 550°C, and the molten SiO is heated at 1050°C 2 The glass flows out and is made into a prefabricated embryo in the atmospheric environment. Through the mold input device 1, the mold 6 for forming is put into the mold purification device 10 from the glass forming device 20, and in the mold cooling device 2, the water cooling plate is brought into contact with the mold 6, and the mold 6 is cooled to below 200°C, and the mold is ground The device 3 removes the oxide layer on the surface of the mold 6 . On the grinding member 3a, diamond abrasive grains of #10000 were dispersed on soft rubber, and a cylinder having a diameter equal to or more than half the outer diameter of the molding surface 6a was used...

Embodiment 2

[0120] A molding die was used in which stainless steel was used as the base material of the die 6, and chromium nitride (CrN) with a thickness of 2 μm was used as a protective film on the molding surface 6a with a roughness of less than 0.05 μm. The mold 6 is heated to 600°C on the glass forming device 20, and the molten SiO 2 The glass flows out and is made into a prefabricated embryo in the atmospheric environment. The mold 6 for forming is put into the mold purification device 10 from the glass forming device 20 through the mold input device 1, and in the mold cooling device 2, the water-cooled plate is brought into contact with the mold 6, cooled to below 200°C, and the mold is ground by the mold grinding device 3 6 surfaces. On the grinding member 3a, diamond abrasive grains of #10000 were dispersed on soft rubber, and a cylinder having a diameter equal to or more than half the outer diameter of the molding surface 6a was used. Since the oxide layer on the surface of ch...

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PUM

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Abstract

The metallic mold cleaning apparatus capable of being added to the glass forming apparatus for manufacturing a glass forming article from molten glass is provided with a metallic mold rotating table for holding and moving the metallic mold, a forming mold charging means for charging the forming mold to the metallic mold rotating table, a metallic mold cooling means for cooling the metallic mold, a metallic mold polishing means for polishing the metallic mold, a metallic mold heating means for heating the metallic mold, and a metallic mold discharge means for taking off the metallic mold from the metallic mold rotating table.

Description

technical field [0001] The present invention relates to a manufacturing method and manufacturing apparatus for glass raw materials or lenses used for molding optical glass elements such as lenses or prisms of optical equipment or optical communication equipment, and particularly to a method and apparatus for cleaning molds used for molding. Background technique [0002] In recent years, in order to omit the grinding and grinding process, heat to soften the glass raw material, press molding with a mold with a high-precision molding surface, and produce glass elements such as optical lenses through precision press molding that can directly obtain optical elements such as lenses. Therefore, since the polishing process can be simplified or omitted, cost reduction is advancing. Of course, the cost reduction is also aimed at the glass raw material which is a raw material. That is, the improvement of the productivity of glass raw material production becomes important. [0003] As...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B11/00
CPCY02P40/57
Inventor 坂井亮介福田繁树筱崎正尚杉﨑健儿
Owner OHARA