High-precision annealing furnace

An annealing furnace and high-precision technology, which is applied in the field of high-precision annealing furnaces, can solve the problems of incomplete annealing, low added value of products, and low product qualification rate, and achieve the effects of reducing heat dissipation, significant energy saving effects, and improving uniformity

Inactive Publication Date: 2012-06-13
浙江宇清热工科技股份有限公司
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  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a high-precision annealing furnace to solve the shortcomings of incomplete annealing, low product qualification rate and low product added value in the prior art

Method used

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Embodiment 1

[0023] Such as Figure 1-Figure 3 As shown, a high-precision annealing furnace is composed of a suspended flat roof structure (1), a side wall curved sealing structure (4) and a bottom refractory brick (6). The suspended flat roof structure (1) contains a curved sealing structure (2), in order to improve the bottom temperature, a heating device (8) is set at the bottom, a thermocouple (11) is set at the top, and glass blocks (3) etc. are placed on the mesh belt bracket (9) in the middle of the annealing furnace. There is a mesh belt tug (7) at the bottom of the annealing furnace.

[0024] The invention can be mainly used for the annealing of optical glass and laser glass.

[0025] The high-precision annealing furnace produced by a research institute in Shanghai using this invention is applied to the annealing of laser glass. It passed the high temperature assessment at 560°C, and it ran at 460°C for one week and carried out temperature measurement. The deviation between the t...

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Abstract

The invention relates to a high-precision annealing furnace, which consists of a counter celling structure (1), a side wall curved sealing structure (4) and a bottom refractory brick (6), wherein the counter celling structure (1) comprises a curved sealing structure (2); a heating device (8) is arranged at the bottom of the annealing furnace to raise the bottom temperature of the annealing furnace; a thermoelectric pair (11) is arranged on the top of the annealing furnace; a glass block (3) and the like are placed on a mesh belt bracket (9) in the middle of the annealing furnace; and the bottom of the annealing furnace is provided with a mesh belt towing launch (7). Due to the adoption of the high-precision annealing furnace, the height of a kiln is reduced, and the temperature difference between the upper and lower parts of a hearth is reduced; the radiating uniformity of a side wall is enhanced; temperature difference caused by air leakage at the bottom of the furnace is eliminated; and the temperature difference between the upper and lower parts of the hearth is + / -2 DEG C, the temperature difference between the left and right parts of the hearth is + / -1 DEG C, and a remarkable energy-saving effect is achieved.

Description

technical field [0001] The invention relates to a high-precision annealing furnace, in particular to an annealing process for high-performance glass such as optical glass and laser glass. Background technique [0002] The annealing of glass is to reheat the glass product with permanent stress to the temperature at which the particles inside the glass can move, and use the displacement of the particles to relax the stress, thereby eliminating or weakening the permanent stress. [0003] my country currently ranks first in the world in terms of glass production, but it is still far from being a strong glass country. The main reason is that its products are still limited to low-grade and low-value-added glass products, while high-tech and high-quality glass products do not have much advantage in the world. . One of the reasons is that the quality of the glass annealing furnace is not high, and many products have relatively large thermal stress, which is greatly restricted in use...

Claims

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Application Information

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IPC IPC(8): C03B25/00
Inventor 吴俊杰汪庆卫吴月民
Owner 浙江宇清热工科技股份有限公司
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