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A heating body and a vacuum sintering furnace realizing multi-zone temperature control

A technology of vacuum sintering furnace and heating body, which is applied to lighting and heating equipment, furnace, charge and other directions, can solve the problems of large temperature deviation, poor temperature control adjustability of equipment, large product size and performance deviation, etc. The effect of shrinking, full furnace yield improvement, and self-requirement reduction

Active Publication Date: 2019-10-29
NINGBO HIPER VACUUM TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a heating body and a vacuum sintering furnace that realizes multi-zone temperature control, so as to solve the problem that the existing integrated heating device has a large temperature deviation between up and down, front and back, resulting in large product size and performance deviations, and equipment The problem of poor temperature control and adjustability, thereby reducing the manufacturing cost and product production cost of the vacuum sintering furnace

Method used

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  • A heating body and a vacuum sintering furnace realizing multi-zone temperature control
  • A heating body and a vacuum sintering furnace realizing multi-zone temperature control
  • A heating body and a vacuum sintering furnace realizing multi-zone temperature control

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specific Embodiment approach

[0044] About a specific embodiment of the present invention is as follows:

[0045] The furnace body will be debugged and tested before shipment, and the temperature distribution is a necessary test.

[0046] For example, when the set temperature in the furnace is 800°C, the sensor detects the temperature at 6 different positions in the furnace, such as Figure 6 as shown, Figure 6 It is the distribution schematic diagram of the temperature detection point in the furnace of the specific embodiment of the present invention, and black dot represents detection point, and the temperature that each detection point records is as follows:

[0047] Point 1 is 800°C, point 2 is 810°C, point 3 is 795°C, point 4 is 800°C, point 5 is 805°C, and point 6 is 790°C.

[0048] At this time, point 1 is 800°C, and point 6 is 790°C.

[0049] At this time, if the upper and lower 2-zone temperature control design is adopted, that is, two heating bodies are used for heating. Since point 1 and poi...

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Abstract

The invention discloses a heating body and a vacuum sintering furnace realizing multi-zone temperature control. The vacuum sintering furnace includes a sealed box, a heating device and a heat insulation cylinder; the heating device includes a plurality of heating body groups uniformly distributed outside the sealed box, each heating body group includes two identical structures and surrounds the side of the sealed box The heating body; the heating body includes a first heating structure and a second heating structure; the head ends of the first heating structure and the second heating structure are connected to the output end of the single-phase transformer, and the ends of the first heating structure and the second heating structure are connected through a long The connecting piece is connected; the single-phase transformer, the first heating structure and the second heating structure form a current loop. With the heating body and the vacuum sintering furnace of the present invention, each heating body heats the corresponding area to realize automatic adjustment of the heating temperature of the heating body, and a heating device composed of multiple heating bodies is used to heat multiple areas of the vacuum sintering furnace , to achieve the control of the temperature uniformity in the vacuum sintering furnace.

Description

technical field [0001] The invention relates to the field of temperature control, in particular to a heating body and a vacuum sintering furnace for realizing multi-zone temperature control. Background technique [0002] In order to increase the production capacity of the vacuum sintering furnace, it is necessary to increase the space in the furnace, but the increase in the space in the furnace will cause a large difference in the temperature in different areas of the furnace, usually >±10°C, and with the increase of the space in the furnace , During the heating process of different regions, due to heat capacity, heating, heat preservation and other factors, the temperature difference in different regions will be larger, usually >±20°C. On the other hand, since the heat conduction of the heating element of the vacuum furnace is mainly in the form of radiation, but due to the different radiation heat conduction efficiency at different temperatures (intensity of light), ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B5/05F27B5/14F27B5/18
CPCF27B5/04F27B5/14F27B5/18F27M2003/04F27B5/06
Inventor 刘鹏徐文立杜霆
Owner NINGBO HIPER VACUUM TECH CO LTD
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