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Temperature control-material feeding coupled zone fritting furnace

A technology of coupling area and sintering furnace, used in furnaces, muffle furnaces, cooking furnaces, etc., can solve the problems of inability to obtain performance, different sintering characteristics, and good sintered bodies

Active Publication Date: 2011-05-11
中国科学院上海硅酸盐研究所苏州研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When preparing transparent ceramic gradient materials, the sintering temperature of the raw materials is very different, and the sintering characteristics of various raw materials are different. A single sintering temperature cannot obtain a sintered body with good performance.

Method used

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  • Temperature control-material feeding coupled zone fritting furnace

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Embodiment 1

[0020] The function of the sintering furnace of the present invention is to form the required powder into a gradient material of a certain shape according to the requirements. Under vacuum conditions and at a certain material feeding speed, the furnace temperature program is controlled to realize the relationship between the temperature of the furnace body and the sintering temperature of the material. Coupling, sintering to prepare transparent ceramic gradient materials. mainly includes:

[0021] (1) Vacuum system, used to generate the vacuum required for the preparation of transparent ceramics;

[0022] (2) The heating system generates the required temperature through PID control;

[0023] (3) The cooling system takes away the excess heat generated by the heating system, and can also generate a certain temperature field;

[0024] (4) The material feeding system controls the material feeding speed through the control system to realize the coupling of the furnace body temper...

Embodiment 2

[0028] The function of the sintering furnace of the present invention is to form the required powder into a gradient material of a certain shape according to the requirements, and to control the furnace temperature program under a hydrogen atmosphere and a certain material feeding speed to realize the relationship between the temperature of the furnace body and the sintering temperature of the material. Coupling, sintering to prepare transparent ceramic gradient materials. mainly includes:

[0029] (1) hydrogen gas flow controller, in order to produce the required hydrogen atmosphere for preparing transparent ceramics;

[0030] (2) The heating system generates the required temperature through PID control;

[0031] (3) The cooling system takes away the excess heat generated by the heating system, and can also generate a certain temperature field;

[0032] (4) The material feeding system controls the material feeding speed through the control system to realize the coupling of ...

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Abstract

The invention discloses a temperature control-material feeding coupled zone fritting furnace which comprises a material feeding mechanism, a temperature test system, a heating body, a programming controller, a heat shield, a water cooling jacket, a hydrogen gas inlet control system and a vacuum system. Materials are\ conveyed to a high-temperature space through the material feeding mechanism according to a set feeding system. The heating body controls the temperature of the high-temperature space according to the set temperature schedule under the control of the programming controller, thereby achieving the aim of temperature control-material feeding coupling. The hydrogen gas inlet control system and the vacuum system control the atmosphere in the sintering process. The fritting furnace provided by the invention is suitable for preparing a crystalline ceramic gradient material, and also can be used for preparing other classified gradient materials with large length-diameter ratios.

Description

technical field [0001] The invention relates to a sintering furnace in a temperature control-material feeding coupling area, which belongs to the field of sintering equipment. Background technique [0002] Since the laser output of transparent ceramic laser materials in 1995, it has developed rapidly. In recent years, there are reports of Nd:YAG transparent ceramic composite structure. This material is only different in the concentration of Nd ions in the YAG transparent ceramic material, so the sintering temperature is consistent. There is a big difference from the transparent ceramic gradient material proposed by the present invention. In the transparent ceramic gradient material proposed by the present invention, the concentration of doping ions and the composition of the matrix material are all changed. Because this change leads to a difference in the sintering temperature of the material, the preparation of this material is highly difficult and innovative. The prepara...

Claims

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Application Information

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IPC IPC(8): F27B5/05F27B5/06F27B5/14F27B5/12
Inventor 冯涛蒋丹宇施剑林
Owner 中国科学院上海硅酸盐研究所苏州研究院
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