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Vacuum heat treatment furnace

A technology of vacuum heat treatment furnace and vacuum layer, which is applied in the field of heat treatment, can solve the problems such as the inability to process the rapid cooling of the furnace, and achieve the effects of lowering the temperature, uniform temperature distribution, and ensuring airtightness

Inactive Publication Date: 2016-11-16
DEYANG HONGYUAN ELECTROMECHANICAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But above-mentioned prior art can't carry out gradient heating to processing furnace and then carry out rapid cooling

Method used

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  • Vacuum heat treatment furnace
  • Vacuum heat treatment furnace

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Experimental program
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Effect test

Embodiment 1

[0029] A vacuum heat treatment furnace, comprising a furnace, a frame body 2, a workbench 3 and a heater, characterized in that: the heater is a heating tube 1 and is arranged in the side wall interlayer of the furnace, and the heating tube 1 is at least three Each group of heating tubes 1 is at least five, and each group of heating tubes 1 is evenly arranged in a circle, and the distance between each heating tube 1 is equal; each group of heating tubes 1 is connected to a different switch; There is a vacuum extractor 5, a vacuum pump 6 and a condenser 7. The furnace chamber includes three layers, which are sequentially from the inside to the outside: a heating layer 8, a vacuum layer 9 and a cooling layer 10; the vacuum layer 9 is connected to the vacuum pump 6, and the The cooling layer 10 is connected to the condenser 7; the four corners at the top of the furnace are provided with through pipes 12, and the through pipes 12 are connected with the vacuum absorber 5; the inside...

Embodiment 2

[0031] A vacuum heat treatment furnace, comprising a furnace, a frame body 2, a workbench 3 and a heater, characterized in that: the heater is a heating tube 1 and is arranged in the side wall interlayer of the furnace, and the heating tube 1 is at least three Each group of heating tubes 1 is at least five, and each group of heating tubes 1 is evenly arranged in a circle, and the distance between each heating tube 1 is equal; each group of heating tubes 1 is connected to a different switch; There is a vacuum extractor 5, a vacuum pump 6 and a condenser 7. The furnace chamber includes three layers, which are sequentially from the inside to the outside: a heating layer 8, a vacuum layer 9 and a cooling layer 10; the vacuum layer 9 is connected to the vacuum pump 6, and the The cooling layer 10 is connected to the condenser 7; the four corners at the top of the furnace are provided with through pipes 12, and the through pipes 12 are connected with the vacuum absorber 5; the inside...

Embodiment 3

[0034] A vacuum heat treatment furnace, comprising a furnace, a frame body 2, a workbench 3 and a heater, characterized in that: the heater is a heating tube 1 and is arranged in the side wall interlayer of the furnace, and the heating tube 1 is at least three Each group of heating tubes 1 is at least five, and each group of heating tubes 1 is evenly arranged in a circle, and the distance between each heating tube 1 is equal; each group of heating tubes 1 is connected to a different switch; There is a vacuum extractor 5, a vacuum pump 6 and a condenser 7. The furnace chamber includes three layers, which are sequentially from the inside to the outside: a heating layer 8, a vacuum layer 9 and a cooling layer 10; the vacuum layer 9 is connected to the vacuum pump 6, and the The cooling layer 10 is connected to the condenser 7; the four corners at the top of the furnace are provided with through pipes 12, and the through pipes 12 are connected with the vacuum absorber 5; the inside...

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Abstract

The invention discloses a vacuum heat treatment furnace. At least three groups of heating pipes are arranged, are uniformly arranged in a spaced manner and are respectively controlled by different switches; and the needed temperature is in direct proportion to the group amount of the opened heating pipes, and the higher the needed temperature is, more groups of the heating pipes are opened. The heating pipes are uniformly arranged in the spaced manner, so that the uniform temperature emission can be ensured; a matter to be heated is placed on a working station and receives heat from all directions, and uniform gradient heating of the matter can be realized; with arrangement of a through pipe which mutually communicates among a cooling layer, a vacuum layer and a heating layer, heat in the heating layer is treated, cool air in a condenser enters a cooling pipe, a vacuum pump carries out vacuum pumping on the vacuum layer, then heat in the heating layer is absorbed by a vacuum absorber in a vacuum manner, the cool air enters the heating layer, hot gas is absorbed, and heat is exchanged, thus the effect of rapid cooling is reached.

Description

technical field [0001] The invention belongs to the technical field of heat treatment, and in particular relates to a vacuum heat treatment furnace. Background technique [0002] A general term for industrial furnaces that perform various metal heat treatments on metal workpieces. The temperature is generally lower than that of the heating furnace. The heat treatment furnace can adopt various furnace types, but it requires strict control of the furnace temperature and the atmosphere in the furnace. Heat treatment furnaces are mostly heated by gaseous fuels. In order to accurately control the furnace temperature, some heat treatment furnaces are heated by electricity. Modern heat treatment, especially the chemical heat treatment process is becoming more and more complex, and there are many forms of heat treatment furnaces. For a continuous heat treatment process, a suitable continuous heat treatment furnace must be equipped; for a periodic heat treatment process, a forced ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/00
CPCC21D9/00
Inventor 刘敏赵成杨天桥孙书俊
Owner DEYANG HONGYUAN ELECTROMECHANICAL ENG