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Optical glass rapid quenching furnace

A technology of optical glass and quenching furnace, which is applied in the field of optical glass quenching, to achieve the effect of improving the uniformity of temperature field, shortening the quenching cycle, and uniform temperature field

Active Publication Date: 2013-01-02
HUBEI NEW HUAGUANG NEW INFORMATION MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new type of rapid quenching furnace for optical glass to solve the shortcomings of the previous simple muffle furnace, which is not uniform and uncontrollable in temperature field. It can not only facilitate the taking and placing of glass samples, but also facilitate the operation and maintenance of the quenching furnace

Method used

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  • Optical glass rapid quenching furnace
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  • Optical glass rapid quenching furnace

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Embodiment 1

[0019] Example 1. H-ZK class:

[0020]

[0021]

[0022]

[0023]

[0024]

[0025] Note: nF, nC, nd, nF-nC, υ d represent respectively: the refractive index of the hydrogen blue line F, the refractive index of the hydrogen red line C, the refractive index of the helium yellow line d, the central dispersion, and the dispersion coefficient (that is, the Abbe number);

[0026] mF, mC, md, mF-mC, mυd Respectively: the refractive index annealing constant of the hydrogen blue line F, the refractive index annealing constant of the hydrogen red line C, the refractive index annealing constant of the helium yellow line d, the annealing constant of the middle dispersion, and the annealing constant of the dispersion coefficient (that is, the Abbe number);

[0027] △nF, △nC, △nd, △nF-nC, △υd Respectively: the difference in refractive index of the hydrogen blue line F, the refractive index difference of the hydrogen red line C, and the helium yellow line d in the case o...

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Abstract

The invention relates to an optical glass rapid quenching furnace. The invention belongs to the technical field of optical glass quenching. The quenching furnace is mainly used for solving problems of non-uniform temperature field, long quenching period, and low controlling precision over cooling speed of existing quenching furnaces. The quenching furnace provided by the invention is characterized in comprising a frame, a furnace body heating cylinder, a circulation stirring apparatus, a cold air delivering apparatus, and a sample tray apparatus. The furnace body heating cylinder is arranged on the middle-upper part of the frame. The circulation stirring apparatus is composed of stirring blades, a hollow shaft, a belt pulley, and a motor. The cold air delivering apparatus is composed of a blower, a cold air pipeline, and a hollow shaft. The sample tray apparatus is composed of an upper material tray, a lower material tray, a material tray rotation motor, and a material tray elevation apparatus. The material tray elevation apparatus comprises a material tray elevation slide rail, a material tray elevation motor, and a slide block. According to the invention, rapid heating and cooling can be carried out according to determined speeds, and the temperature field in the furnace can maintain uniform during the rapid heating and cooling process. The furnace is convenient to operate, and is a rapid annealing apparatus mainly used in optical glass quenching.

Description

technical field [0001] The invention belongs to the technical field of optical glass quenching, in particular to a rapid annealing device for optical glass quenching. Background technique [0002] Usually, before the optical glass is put into annealing, it is necessary to know exactly what annealing process is used for annealing and the range of possible refractive index values. Therefore, it is not only necessary to know the logarithmic line between the refractive index of optical glass and the cooling rate (see figure 2 ) slope, that is, the m coefficient, and it must also be known that it is currently taken as the basic value n in production 0 starting point: basic value n 0 Corresponding to the cooling rate of 4°C / hour (different from each factory). However, to know n 0 The production cycle is very long. Therefore, in order to quickly determine n 0 , generally adopt the method of optical glass quenching. In order to obtain optical data and annealing characteristic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B25/00
Inventor 童莉莉喻涧临
Owner HUBEI NEW HUAGUANG NEW INFORMATION MATERIALS CO LTD
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