Optical glass molding device and molding method
A molding device and a technology for optical glass, which are applied to the optical glass molding device and its molding field, can solve the problems of difficult control of stripes, severe crystallization, low viscosity, etc., and achieve the effects of easy loading, unloading and replacement, and flexible operation.
Active Publication Date: 2018-05-25
CDGM OPTICAL GLASS
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Problems solved by technology
Lanthanide optical glass has low viscosity, severe crystallization, short material properties, and difficulty in spreading and forming. Usually, the width of the forming strip is less than 120mm, and it is difficult to form more than 200mm. The thickness is usually less than 30mm. It is extremely difficult to control, and the uniformity and stress inside the glass are not easy to solve, and it is very easy to cause the scrapping of large-diameter lanthanide optical glass
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[0024] The present invention will be further described below in conjunction with the accompanying drawings.
[0025] like figure 1 As shown, the molding device of the large-diameter lanthanide optical glass of the present invention includes a molding system and a preheating system, wherein the molding system includes a heating device, a molding device and a lifting device 5, and the heating device is composed of a molding cover 1 and a bottom burner 10. The forming cover 1 is used to ensure the temperature of the space where the forming device is located; the forming device is composed of a forming mold 2, a bottom plate 8 and a trolley 3, and the preheating system is composed of a preheating cover 7 and a preheating burner 6, which is arranged on In the preheating cover 7.
[0026] The forming cover 1 is hung on the bottom of the furnace, so that the discharge pipe 9 is set in the forming cover 1, and the forming cover 1 is provided with a heating element, which has a heatin...
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The invention provides a forming unit and method of optical glass. The forming unit comprises a forming cover, a bottom fire head, a forming mold, a bottom plate and a trolley. The forming cover is suspended to a furnace-bottom. The forming mold is disposed on the bottom plate which is disposed on the trolley. The trolley is disposed on a rail and can horizontally move along the rail. The forming unit well meets the temperature field required by the formation of the optical glass and is flexible to operate and convenient to mount, demount and change; by the use of the forming method, stripes and cracks in the optical glass are under good control, and the problems, such as stripes, uniformity and stress, of the glass can be solved; the forming unit and method is especially suitable for the formation of large-diameter lanthanide optical glasses.
Description
technical field [0001] The invention relates to a forming device and a forming method of optical glass, in particular to a forming device and a forming method of large-caliber lanthanide optical glass. Background technique [0002] After the optical glass is melted from powder to qualified glass, in order to keep the glass liquid in a certain shape after solidification, a molding process must be used to make the glass gradually solidify its shape when it changes from liquid to solid state. The molding process of large-diameter optical glass mainly includes Two types: 1) Strip forming process: Optical glass is naturally formed or pressed by a mold in a molten state and cut into optical glass strips of a certain size; 2) Pouring molding: Optical glass is poured directly into a molten state In the forming mold, it is cooled into the required bulk glass. [0003] At present, large-diameter optical glass is mainly formed by a strip forming process, and then processed into a larg...
Claims
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IPC IPC(8): C03B19/02
Inventor 易平朱志新陆明新但启林李明邓宇蒋冬梅
Owner CDGM OPTICAL GLASS