Air flow circulation type high-purity white corundum sintering furnace cavity structure

Abstract

The utility model belongs to the field of sintering furnaces, and particularly relates to an airflow circulation type high-purity white corundum sintering furnace cavity structure which comprises a sintering furnace, white corundum is placed in a furnace cavity of the sintering furnace, an adjusting base is fixedly installed on the inner wall of one side of the furnace cavity of the sintering furnace, and an adjusting mechanism is arranged on one side of the adjusting base. The adjusting mechanism comprises four fixing metal strips, heating elements are detachably installed on one sides of the four fixing metal strips, a sealing door is rotatably installed on one side of the sintering furnace, a circulating fan unit is arranged on one side of the sintering furnace, and an air flue is arranged on one side of the circulating fan unit. The position and the angle of the heating element can be flexibly adjusted according to the stacking shape and the airflow circulation path of the white corundum material, so that the heating element can be closer to the material and keep a proper distance from the surface of the material, and the heating efficiency and the uniformity are improved.

Description

A gas-flow circulating high-purity white corundum sintering furnace cavity structure Technical Field

[0001] This utility model relates to the field of sintering furnace technology, and in particular to a cavity structure of a high-purity white corundum sintering furnace with airflow circulation. Background Technology

[0002] Sintering furnaces are specialized equipment used to sinter powder compacts to obtain the required physical and mechanical properties and microstructures. Sintering furnaces are used to dry the slurry on silicon wafers, remove organic components from the slurry, and complete the sintering of aluminum back field and grid lines.

[0003] When processing high-purity white corundum, it is often processed by air-flow circulating sintering furnace. However, air-flow circulating sintering furnace usually places the heating element in the furnace cavity. Since the sintering furnace is a horizontal cylindrical shape, sometimes the heating element is far away from the material, resulting in low heating efficiency and uniformity.

[0004] Therefore, we propose a gas-flow circulating high-purity white corundum sintering furnace cavity structure to solve the above problems. Summary of the Invention

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cavity structure for a high-purity white fused alumina sintering furnace with airflow circulation includes a sintering furnace. The furnace cavity is used to place white fused alumina. An adjusting base is fixedly installed on one side of the inner wall of the furnace cavity. An adjusting mechanism is provided on one side of the adjusting base. The adjusting mechanism includes four fixed metal strips, and heating elements are detachably installed on one side of each of the four fixed metal strips.

[0007] Specifically, a sealing door is rotatably installed on one side of the sintering furnace to facilitate opening or closing the furnace chamber.

[0008] Specifically, a circulating fan unit is provided on one side of the sintering furnace, and an air duct is provided on one side of the circulating fan unit. The other end of the air duct is fixedly connected to the sintering furnace, and the end of the air duct fixedly connected to the sintering furnace extends into the furnace cavity of the sintering furnace.

[0009] Specifically, a heat preservation groove is provided on one side of the sintering furnace, and a ceramic fiber interlayer is fixedly installed on the inner side of the heat preservation groove, which helps to improve the heat preservation effect of the sintering furnace.

[0010] Specifically, the adjustment mechanism further includes a threaded rod, a fixed sleeve, a nut, a linkage sleeve, and four linkage components. A fixed sleeve is fixedly installed on one side of the adjustment base, and a nut is fixedly installed on one end of the fixed sleeve. A threaded rod is slidably installed on the inner side of the fixed sleeve, and the threaded rod is threadedly connected to the nut. An outer groove is formed on the outer side of the threaded rod. A linkage sleeve is slidably installed on the outer side of the fixed sleeve. An annular protrusion is provided on the inner side of the linkage sleeve, and the annular protrusion is rotatably installed on the inner side of the outer groove. Four linkage components are provided on the outer side of the linkage sleeve.

[0011] Specifically, the linkage assembly includes an extension base, two linkage columns, four cranks, and two through columns. The extension base is fixedly installed on the outer side of the linkage sleeve, and two linkage columns are fixedly installed on the inner side of the extension base. Two cranks are rotatably sleeved on each of the two linkage columns, and the same through column is fixedly installed on the side of the two cranks located on the same side that are close to each other.

[0012] Specifically, four fixed metal strips are respectively rotated and fitted onto two corresponding through posts, and the fixed metal strips can be moved by the through posts.

[0013] Specifically, a guide metal block is fixedly installed on one side of each of the four fixed metal strips, and four guide grooves are opened on one side of the adjustment base. The four guide metal blocks are slidably installed in the corresponding guide grooves to facilitate the restriction of the movement trajectory of the fixed metal strips.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: through the set adjustment mechanism, the position and angle of the heating element can be flexibly adjusted according to the stacking shape of the white corundum material and the airflow circulation path, so that the heating element can be closer to the material and maintain a suitable distance from the material surface, thereby improving heating efficiency and uniformity. Attached Figure Description

[0015] Figure 1 is a three-dimensional structural diagram of the cavity structure of a high-purity white corundum sintering furnace with airflow circulation proposed in this utility model.

[0016] Figure 2 is a three-dimensional cross-sectional view of the cavity structure of a high-purity white corundum sintering furnace with airflow circulation proposed in this utility model.

[0017] Figure 3 is a three-dimensional cross-sectional view of the sintering furnace cavity structure of the airflow circulation type high-purity white corundum sintering furnace proposed in this utility model.

[0018] Figure 4 is a three-dimensional structural schematic diagram of the adjustment mechanism of the cavity structure of a high-purity white corundum sintering furnace with airflow circulation proposed in this utility model.

[0019] Figure 5 is a three-dimensional structural breakdown diagram of the adjustment mechanism of the cavity structure of a high-purity white corundum sintering furnace with airflow circulation proposed in this utility model.

[0020] In the diagram: 1. Sintering furnace; 2. Sealed door; 3. Circulating fan unit; 4. Air duct; 5. Adjusting base; 6. Guide metal block; 7. Fixing sleeve; 8. Nut; 9. Threaded rod; 10. Linkage sleeve; 11. Extension base; 12. Linkage column; 13. Crank; 14. Through column; 15. Fixing metal strip; 16. Heating element; 17. Ceramic fiber interlayer. Detailed Implementation

[0021] Referring to Figures 1-5, a cavity structure for a high-purity white corundum sintering furnace with airflow circulation includes a sintering furnace 1. The cavity of the sintering furnace 1 is used to place white corundum. An adjusting base 5 is fixedly installed on one side of the inner wall of the cavity of the sintering furnace 1. An adjusting mechanism is provided on one side of the adjusting base 5. The adjusting mechanism includes four fixed metal strips 15. A heating element 16 can be detachably installed on one side of each of the four fixed metal strips 15.

[0022] In this embodiment, a sealing door 2 is rotatably installed on one side of the sintering furnace 1 to facilitate opening or closing the furnace cavity of the sintering furnace 1.

[0023] In this embodiment, a circulating fan unit 3 is provided on one side of the sintering furnace 1, and an air duct 4 is provided on one side of the circulating fan unit 3. The other end of the air duct 4 is fixedly connected to the sintering furnace 1, and the end of the air duct 4 that is fixedly connected to the sintering furnace 1 extends into the furnace cavity of the sintering furnace 1.

[0024] In this embodiment, a heat preservation groove is provided on one side of the sintering furnace 1, and a ceramic fiber interlayer 17 is fixedly installed on the inner side of the heat preservation groove, which helps to improve the heat preservation effect of the sintering furnace.

[0025] In this embodiment, the adjustment mechanism also includes a threaded rod 9, a fixed sleeve 7, a nut 8, a linkage sleeve 10, and four linkage components. A fixed sleeve 7 is fixedly installed on one side of the adjustment base 5, and a nut 8 is fixedly installed on one end of the fixed sleeve 7. A threaded rod 9 is slidably installed on the inner side of the fixed sleeve 7. The threaded rod 9 is threadedly connected to the nut 8. An outer groove is provided on the outer side of the threaded rod 9. A linkage sleeve 10 is slidably installed on the outer side of the fixed sleeve 7. An annular protrusion is provided on the inner side of the linkage sleeve 10. The annular protrusion is rotatably installed on the inner side of the outer groove. Four linkage components are provided on the outer side of the linkage sleeve 10.

[0026] In this embodiment, the linkage assembly includes an extension base 11, two linkage columns 12, four cranks 13, and two through columns 14. The extension base 11 is fixedly installed on the outer side of the linkage sleeve 10, and two linkage columns 12 are fixedly installed on the inner side of the extension base 11. Two cranks 13 are rotatably sleeved on each of the two linkage columns 12. The same through column 14 is fixedly installed on the side of the two cranks 13 located on the same side that are close to each other.

[0027] In this embodiment, four fixed metal strips 15 are respectively rotatably sleeved on two corresponding through posts 14, and the fixed metal strips 15 can be moved by the through posts 14.

[0028] In this embodiment, guide metal blocks 6 are fixedly installed on one side of each of the four fixed metal strips 15, and four guide grooves are opened on one side of the adjusting base 5. The four guide metal blocks 6 are slidably installed in the corresponding guide grooves, which facilitates the restriction of the movement trajectory of the fixed metal strips 15.

[0029] Working principle: When processing white fused alumina, the operator places the white fused alumina into the furnace cavity of the sintering furnace 1. Then, based on the stacking shape of the white fused alumina and the airflow circulation path, the positions of multiple heating elements 16 are adjusted. First, the threaded rod 9 is rotated. The threaded rod 9 is threadedly connected to the nut 8 on the fixed sleeve 7. Therefore, the rotation of the threaded rod 9 will cause axial movement along the fixed sleeve 7. An outer groove is provided on the outer side of the threaded rod 9, and an annular protrusion is provided on the inner side of the linkage sleeve 10. The annular protrusion is rotatably installed in the outer groove. Because the annular protrusion cooperates with the outer groove, the rotation of the threaded rod 9 can be converted into axial movement of the linkage sleeve 10. Therefore, when the threaded rod 9 moves, it will drive the linkage sleeve 10 to move. The movement of the linkage sleeve 10 will drive the four extension bases 11 to move. The movement of the rods will cause the corresponding two linkage columns 12 to move, and the movement of multiple linkage columns 12 will cause the corresponding two cranks 13 to move. The movement of multiple cranks 13 will cause the corresponding through column 14 to move, which in turn will cause the corresponding fixed metal strip 15 to move. Since a guide metal block 6 is fixedly installed at one end of the fixed metal strip 15, and four guide grooves are opened on one side of the adjusting base 5, the four guide metal blocks 6 are all slidably installed in the corresponding guide grooves. Therefore, the movement trajectory of the four fixed metal strips 15 is restricted, and they can only move back and forth. The movement of the four fixed metal strips 15 will cause the corresponding heating element 16 to move closer to the material and maintain a suitable distance from the surface of the material, thereby improving heating efficiency and uniformity. At the same time, the ceramic fiber interlayer 17 can effectively keep the temperature and increase the temperature inside the furnace cavity.

[0030] The technological advancement of this invention compared to the prior art is that the position and angle of the heating element 16 can be flexibly adjusted according to the stacking shape of the white corundum material and the airflow circulation path, so that the heating element 16 can be closer to the material and maintain a suitable distance from the material surface, thereby improving heating efficiency and uniformity.

Claims

1. A cavity structure for a gas-flow circulating high-purity white corundum sintering furnace, characterized in that, The furnace includes a sintering furnace (1), the furnace cavity of which is used to place white corundum. An adjustment base (5) is fixedly installed on one side of the inner wall of the furnace cavity of the sintering furnace (1), and an adjustment mechanism is provided on one side of the adjustment base (5). The adjustment mechanism includes four fixed metal strips (15), and heating elements (16) can be detachably installed on one side of each of the four fixed metal strips (15).

2. The cavity structure of a gas-flow circulating high-purity white corundum sintering furnace according to claim 1, characterized in that, A sealing door (2) is rotatably installed on one side of the sintering furnace (1).

3. The cavity structure of a high-purity white corundum sintering furnace with airflow circulation according to claim 1, characterized in that, A circulating fan unit (3) is provided on one side of the sintering furnace (1), and an air duct (4) is provided on one side of the circulating fan unit (3). The other end of the air duct (4) is fixedly connected to the sintering furnace (1), and the end of the air duct (4) fixedly connected to the sintering furnace (1) extends into the furnace cavity of the sintering furnace (1).

4. The cavity structure of a gas-flow circulating high-purity white corundum sintering furnace according to claim 1, characterized in that, A heat preservation groove is provided on one side of the sintering furnace (1), and a ceramic fiber interlayer (17) is fixedly installed on the inner side of the heat preservation groove.

5. The cavity structure of a gas-flow circulating high-purity white corundum sintering furnace according to claim 1, characterized in that, The adjustment mechanism also includes a threaded rod (9), a fixed sleeve (7), a nut (8), a linkage sleeve (10), and four linkage components. A fixed sleeve (7) is fixedly installed on one side of the adjustment base (5), and a nut (8) is fixedly installed on one end of the fixed sleeve (7). A threaded rod (9) is slidably installed on the inner side of the fixed sleeve (7). The threaded rod (9) is threadedly connected to the nut (8). An outer groove is provided on the outer side of the threaded rod (9). A linkage sleeve (10) is slidably installed on the outer side of the fixed sleeve (7). An annular protrusion is provided on the inner side of the linkage sleeve (10). The annular protrusion is rotatably installed on the inner side of the outer groove. Four linkage components are provided on the outer side of the linkage sleeve (10).

6. The cavity structure of a gas-flow circulating high-purity white corundum sintering furnace according to claim 5, characterized in that, The linkage assembly includes an extension base (11), two linkage columns (12), four cranks (13) and two through columns (14). The extension base (11) is fixedly installed on the outer side of the linkage sleeve (10), and two linkage columns (12) are fixedly installed on the inner side of the extension base (11). Two cranks (13) are rotatably sleeved on each of the two linkage columns (12). The same through column (14) is fixedly installed on the side of the two cranks (13) that are close to each other on the same side.

7. The cavity structure of a gas-flow circulating high-purity white corundum sintering furnace according to claim 6, characterized in that, Four fixed metal strips (15) are respectively rotated and sleeved on the corresponding two through posts (14).

8. The cavity structure of a gas-flow circulating high-purity white corundum sintering furnace according to claim 7, characterized in that, Each of the four fixed metal strips (15) has a guide metal block (6) fixedly installed on one side. The adjustment base (5) has four guide grooves on one side, and the four guide metal blocks (6) are slidably installed in the corresponding guide grooves.

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