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Vacuum induction sintering furnace gas strong circulation stirring device

A vacuum induction furnace and vacuum induction technology are applied in the directions of stirring devices, furnaces, and furnace components to achieve the effects of improving productivity, reducing energy consumption, and improving firing qualification rate.

Active Publication Date: 2016-01-20
SHENYANG STARLIGHT ADVANCED CERAMICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

None of the above situations is a good solution for the gas to fully participate in the reaction.

Method used

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  • Vacuum induction sintering furnace gas strong circulation stirring device

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Embodiment Construction

[0012] Vacuum induction sintering furnace gas strong circulation stirring device, including vacuum induction furnace body 9, induction heating element 11 set in the vacuum induction furnace body, induction coil 10 wrapped around the induction heating element, vacuum vortex fan 4, closed box 5 and vacuum valve. The vacuum induction furnace body 9 is equipped with a vacuum vortex blower 4 that strongly stirs the gas, and is connected to the rear and front of the vacuum induction furnace body 9 by connecting the inlet pipeline and the outlet pipeline of the vacuum vortex blower 4 respectively, and is connected to the chamber Body 12 communicates. The inlet pipeline of the vacuum vortex fan is equipped with a first vacuum valve 1 for exhaust and a second vacuum valve 2 for suction control, and the outlet pipeline is equipped with a third vacuum valve 6 for air intake control and a fourth vacuum valve for venting 7 and the fifth vacuum valve 8 on the nitrogen filling pipeline. Th...

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Abstract

A powerful gas circulating and stirring device of a vacuum induction sintering furnace. The powerful gas circulating and stirring device comprises a vacuum induction furnace body, an induction heating body arranged in the vacuum induction furnace body, an induction coil wound and sleeved on the induction heating body, a vacuum vortex fan, a closed box and a vacuum valve, and the vacuum vortex fan powerfully stirring gas arranged outside the vacuum induction furnace body is connected with the rear end and the front end of the vacuum induction furnace body by connecting an inlet pipeline and an outlet pipeline of the vacuum vortex fan and communicated with a cavity. The powerful gas circulating and stirring device has quite obvious effect of improving gas participation in reaction, sintering yield is increased, energy consumption is effectively lowered, loading rate is increased, pit furnace cooling time is shortened, and productivity is greatly improved.

Description

technical field [0001] The invention relates to the technical field of sintering furnaces, in particular to a vacuum induction sintering furnace gas strong circulation stirring device. Background technique [0002] Silicon nitride and silicon carbide in engineering ceramics need to be sintered in a vacuum induction sintering furnace. The product needs to be filled with nitrogen during the sintering process, so that silicon and nitrogen can chemically react to form silicon nitride at 1200 ° C ~ 1400 ° C. Since silicon carbide has been added to the blank, the resulting silicon nitride forms a bonding phase, thereby forming a silicon nitride bonded silicon carbide product. At present, after the vacuum induction sintering furnace used is filled with nitrogen into the furnace cavity, it penetrates into the heating chamber by infiltration under the condition of slight positive pressure. When the gas rushes into the furnace and reaches the set pressure, the nitrogen filling is stop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D27/00
Inventor 赵亚滨孙洪鸣王立华许佩玲任东琦
Owner SHENYANG STARLIGHT ADVANCED CERAMICS
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