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Heating body and multi-region temperature-controlled vacuum furnace

A technology of heating body and vacuum furnace, applied in the direction of electric furnace heating, lighting and heating equipment, furnace, etc., can solve the problems of difficult temperature adjustment, difficult temperature adjustment, poor temperature uniformity of vacuum furnace, etc., achieve easy adjustment, improve full furnace goodness efficiency and cost savings

Pending Publication Date: 2020-07-28
NINGBO HIPER VACUUM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the temperature control method of the existing vacuum furnace is not easy to adjust the temperature, especially in the occasions where the temperature is difficult to control such as large furnace type and pressurized atmosphere convection, the temperature is more difficult to adjust, resulting in poor temperature uniformity of the vacuum furnace

Method used

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  • Heating body and multi-region temperature-controlled vacuum furnace
  • Heating body and multi-region temperature-controlled vacuum furnace
  • Heating body and multi-region temperature-controlled vacuum furnace

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Experimental program
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Effect test

specific Embodiment 1

[0075] Figure 8 It is the schematic diagram of the heating device of specific embodiment 1 of the present invention, Figure 9 It is a schematic diagram of a single heating body in the heating device of the specific embodiment 1 of the present invention, Figure 10 It is an expanded view of a single heating body in the heating device of Embodiment 1 of the present invention. combine Figure 8-Figure 10As shown, the heating sheet of the heating body in this embodiment is straight. Each of the first heating unit, the second heating unit and the third heating unit includes four straight heating chips. In this embodiment, the heating temperature control of six zones can be realized.

specific Embodiment 2

[0077] Figure 11 It is the schematic diagram of the heating device of specific embodiment 2 of the present invention, Figure 12 It is a schematic diagram of a single heating body in the heating device of the specific embodiment 2 of the present invention, Figure 13 It is an expanded view of a single heating body in the heating device of Embodiment 2 of the present invention. combine Figure 11-Figure 13 As shown, the heating fins of the heating body in this embodiment are plate-shaped, and each of the first heating unit, the second heating unit and the third heating unit includes two plate-shaped heating fins. In this embodiment, the heating temperature control of six zones can be realized.

specific Embodiment 3

[0079] Figure 14 It is the schematic diagram of the heating device of specific embodiment 3 of the present invention, Figure 15 It is a schematic diagram of a single heating body in the heating device of specific embodiment 3 of the present invention, Figure 16 It is an expanded view of a single heating body in the heating device of Embodiment 3 of the present invention. combine Figure 14-Figure 16 As shown, the heating chip of the heating body in this embodiment is frame-shaped, and each of the first heating unit, the second heating unit and the third heating unit includes two frame-shaped heating chips. In this embodiment, the heating temperature control of six zones can be realized.

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Abstract

The invention relates to a heating body and a multi-region temperature-controlled vacuum furnace. First ends of a plurality of first heating sheets in a first heating unit in the heating body are connected to a first connecting sheet in parallel, and second ends of the first heating sheets are connected to a first corner connecting sheet in parallel; first ends of a plurality of second heating sheets in a second heating unit are connected to the first corner connecting sheet in parallel, and second ends of the second heating sheets are connected to a second corner connecting sheet in parallel;first ends of a plurality of third heating sheets in a third heating unit are connected to the second corner connecting sheet in parallel, and second ends of the third heating sheets are connected toa second connecting sheet in parallel; a first electrode rod is fixed on the first connecting sheet and is used for being connected with a first terminal of a single-phase transformer; a second electrode rod is fixed on the second connecting sheet and is used for being connected with a second terminal of the single-phase transformer; and the radial section of the heating body is in a U shape, andthe first connecting sheet and the second connecting sheet are not coplanar. The temperature regulation difficulty of the vacuum furnace can be reduced, and the temperature uniformity of the vacuum furnace can be improved.

Description

technical field [0001] The invention relates to the field of temperature control, in particular to a heating body and a multi-zone temperature-controlled vacuum furnace. Background technique [0002] The uniformity of temperature distribution is a very important index to detect the performance of vacuum sintering furnace. The smaller the temperature deviation in the furnace and the front, middle, back, upper and lower areas, the better the size and performance control of the processed object after sintering. The higher the yield, the lower the production cost. Affecting the uniformity of temperature distribution usually includes the following factors: (1) related to design. For example, the size of the furnace body, the larger the volume, the worse the uniformity. The location of the upper connection port on the furnace body, such as the large heat loss at the pump port, etc.; or the large heat loss of a cooler somewhere. (2) In and out of the uniformity of the insulation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B5/05F27B5/06F27B5/14F27B5/18F27D11/10
CPCF27B5/04F27B5/06F27B5/14F27B5/18F27D11/10
Inventor 刘鹏徐文立胡芳李婷
Owner NINGBO HIPER VACUUM TECH CO LTD