Self-bonding silicon carbide sintering device

Abstract

The utility model discloses a self-bonding silicon carbide sintering device which comprises a furnace body, a crucible body arranged in the furnace body, a graphite base arranged at the bottom end of the crucible body, a blank body arranged at the upper end of the crucible body, a crucible cover arranged at the upper end of the blank body and a heat dissipation seat arranged on the rear side of the outer end face of the furnace body, a plurality of heat dissipation rings are arranged on the outer end surface of the furnace body corresponding to the heat dissipation seat; an air supply mechanism is arranged at the right end of the air guide pipe on the right side; a supporting column is arranged at the bottom end of the air supply mechanism; a supporting sleeve is arranged on the outer end surface of the supporting column; locking rods are arranged in the two locking holes, the locking rods are in threaded connection with the locking holes, locking grooves are formed in the positions, corresponding to the two locking rods, of the supporting column, and through the design of the supporting column and the supporting sleeve, the stability of the whole device in the using process is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of silicon carbide, more particularly, it relates to a self-bonding sintered silicon carbide device. BACKGROUND

[0002] Self-bonding silicon carbide is that alpha-SiC is mixed with carbon powder, then is formed by various forming methods, then the blank is heated in silicon vapor to make the carbon powder in the blank silicified into beta-SiC, and the particles of alpha-SiC are tightly combined into a dense product, and the silicification can be carried out in a carbon tube furnace at ordinary atmospheric pressure, and the silicification temperature must be greater than 2000 DEG C, so that a long time is needed to wait for cooling after the silicification is completed. UTILITARY MODEL

[0003] (I) technical problem solved

[0004] In view of the problems in the prior art, the utility model provides a self-bonding sintered silicon carbide device to solve the technical problem that the device air supply mechanism lacks a suitable supporting mechanism and the overall stability is poor when in use.

[0005] (II) technical scheme

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a self-bonding sintered silicon carbide device, including the furnace body, the furnace body inside is equipped with the crucible body, the crucible body bottom is equipped with the graphite base, the crucible body upper end is equipped with the embryo body, the embryo body center is penetrated and is equipped with, the embryo body upper end is equipped with the crucible cover, the furnace body outer end face rear side is equipped with the heat dissipation seat, the heat dissipation seat left and right two ends are all penetrated and equipped with the gas guide pipe, the furnace body outer end face corresponds the heat dissipation ring that is equipped with the heat dissipation seat, the heat dissipation ring is provided with a plurality of, right side The gas guide pipe right end is equipped with the gas supply mechanism, the gas supply mechanism bottom is equipped with the support column, the support column outer end face is equipped with the support sleeve, the support sleeve bottom is equipped with the bottom plate, the support sleeve is symmetrically equipped with locking hole on, two The locking hole inside is equipped with the locking rod, the locking rod and locking hole are screwed, the support column is equipped with locking slot on corresponding two The locking rod.

[0007] The utility model further sets up, the air sending mechanism includes box, drive shaft, drive motor, fan blade and air inlet pipe, the box connection setting right side the air pipe right side, drive shaft rotates installation on the box, drive motor installs drive shaft outside end, the fan blade installs drive shaft inside end, the air inlet pipe is provided with two, two air inlet pipe is penetrated and is arranged on the box right end face upper and lower sides respectively, realizes heat dissipation and sends air.

[0008] The utility model further sets up, left side the air pipe left end is equipped with first dust cover, right side two air inlet pipes all are equipped with second dust cover, realizes dust prevention to the air inlet and outlet position.

[0009] The utility model further sets up, be equipped with first mounting ring on first dust cover, first mounting ring and air pipe screw connection, make first dust cover dismounting convenient.

[0010] The utility model further sets up, right side two second dust covers all are equipped with second mounting ring, second mounting ring and air inlet pipe screw connection, make second dust cover dismounting convenient.

[0011] The utility model further sets up, the recess is set up in the heat dissipation seat front and rear both ends, two the recess inside all can detachably be equipped with cover, make inside clean up convenient.

[0012] The utility model further sets up, two the cover upper and lower both ends all are equipped with connecting plate, a plurality of connecting plates all are equipped with first connecting hole, the heat dissipation seat upper and lower both ends correspond a plurality of first connecting holes all are equipped with second connecting hole, first connecting hole and second connecting hole are connected through bolt, realize locking to installation.

[0013] The utility model further sets up, the furnace body front and rear both ends all are equipped with the locating seat, two the cover inboard end all are equipped with the locating column according to the locating seat, make installation positioning convenient.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the utility model provides a self-combined sintered silicon carbide device, has the following beneficial effects:

[0016] 1, through the design of support column and support sleeve, support sleeve slides and adjusts relative to support column, locking rod and locking hole screw, locking rod and locking groove cooperate, realize the locking of height adjustment, strengthen the support of air sending mechanism, improve the stability of the whole device during use.

[0017] 2. Through the design of the first dust cover and the second dust cover, the first dust cover provides dust protection for the air outlet pipe, and the second dust cover provides dust protection for the air inlet pipe, which facilitates the dust prevention of air intake and exhaust, prevents large dust particles in the outside air from entering the device, and avoids the accumulation of dust and impurities.

[0018] 3. The cover plate is designed to be detachable relative to the groove. The first connecting hole on the connecting plate and the second connecting hole on the heat sink are matched. Bolts are passed through and tightened to fix the cover plate, which is convenient for disassembly and assembly. It is also convenient for cleaning up tiny dust particles that have entered the interior, thus ensuring heat dissipation. Attached Figure Description

[0019] Figure 1 A schematic diagram of the preferred overall structure of a self-bonding sintering silicon carbide device;

[0020] Figure 2 A schematic diagram of the preferred structure of a furnace body with a Hull heat sink without a cover plate for a self-bonding sintering silicon carbide device.

[0021] Figure 3 A cross-sectional view of the internal structure of a preferred furnace body for a self-bonding sintering silicon carbide apparatus;

[0022] Figure 4 An internal cross-sectional view of a preferred assembly structure of a box, support column and support sleeve for a self-bonding sintering silicon carbide device;

[0023] Figure 5 A schematic diagram of the overall structure of a preferred cover plate for a self-bonding sintering silicon carbide device.

[0024] In the diagram: 1. Furnace body; 2. Crucible body; 3. Graphite base; 4. Blank; 5. Crucible lid; 6. Heat sink; 7. Gas guide pipe; 8. Heat dissipation ring; 9. Support column; 10. Support sleeve; 11. Base plate; 12. Locking hole; 13. Locking rod; 14. Locking groove; 15. Box body; 16. Drive shaft; 17. Drive motor; 18. Fan blade; 19. Air inlet pipe; 20. First dust cover; 21. Second dust cover; 22. First mounting ring; 23. Second mounting ring; 24. Groove; 25. Cover plate; 26. Connecting plate; 27. First connecting hole; 28. Second connecting hole; 29. ​​Positioning seat; 30. Positioning column. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] In the utility model, in the case where no opposite statement is made, the orientation such as "upper, lower" is usually for the direction shown in the drawing, or for the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is usually for the left and right shown in the drawing; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0028] Please refer to Figures 1-4 A self-bonding sintered silicon carbide device, including furnace body 1, the inside of furnace body 1 is equipped with crucible body 2, the bottom end of crucible body 2 is equipped with graphite base 3, the upper end of crucible body 2 is equipped with embryo body 4, embryo body 4 is centrally disposed, the upper end of embryo body 4 is equipped with crucible cover 5, the rear side of the outer end surface of furnace body 1 is equipped with heat dissipation seat 6, the left and right ends of heat dissipation seat 6 are both equipped with gas guide pipe 7, the outer end surface of furnace body 1 is equipped with heat dissipation ring 8 corresponding to heat dissipation seat 6, heat dissipation ring 8 is provided with multiple, the right end of right gas guide pipe 7 is equipped with gas feeding mechanism, the bottom end of gas feeding mechanism is equipped with support column 9, the outer end surface of support column 9 is equipped with support sleeve 10, the bottom end of support sleeve 10 is equipped with bottom plate 11, symmetrically opening locking hole 12 is arranged on support sleeve 10, locking rod 13 is arranged in the inside of two locking holes 12, locking rod 13 is screw-connected with locking hole 12, locking groove 14 is arranged on support column 9 corresponding to two locking rods 13.

[0029] In the embodiment, support sleeve 10 slides up and down relative to support column 9, slides to a suitable height, rotates locking rod 13, locking rod 13 is screw-connected with locking hole 12, locking rod 13 is inserted into locking groove 14 inward, locking is realized for sliding adjustment, and gas feeding mechanism is conveniently and stably supported.

[0030] More specifically, silicon particles are placed in the inside of crucible body 2, embryo body 4 and crucible cover 5 are placed, furnace body 1 is heated to above 2000 DEG C, siliconization processing is carried out, heat dissipation ring 8 on furnace body 1 realizes heat transfer inside, gas feeding mechanism and gas guide pipe 7 cooperate, and heat outwardly guided is blown.

[0031] Please refer to Figure 1 And Figure 4 As an embodiment of gas feeding mechanism: gas feeding mechanism includes box body 15, driving shaft 16, driving motor 17, fan blade 18 and air inlet pipe 19, box body 15 is connected and arranged on the right side of right gas guide pipe 7, driving shaft 16 is rotatably installed on box body 15, driving motor 17 is installed on the outside end of driving shaft 16, fan blade 18 is installed on the inside end of driving shaft 16, two air inlet pipes 19 are arranged, and the two air inlet pipes 19 are respectively arranged on the right end surface of box body 15 and are symmetrically arranged on the upper and lower sides.

[0032] Specific, drive motor 17 drive shaft 16 rotation, drive shaft 16 drive fan 18 rotation, through the air inlet pipe 19 will be outside air into, the heat inside the heat sink 6 heat ring 8 to the outside, support rod corresponding to the bottom of the box 15 set.

[0033] Please refer to Figure 1 , as a dustproof implementation: left side air duct 7 left end is provided with a first dust cover 20, the right side of two air inlet pipe 19 are provided with a second dust cover 21, the first dust cover 20 is provided with a first mounting ring 22, the first mounting ring 22 and air duct 7 thread connection, the right side of two second dust cover 21 are provided with a second mounting ring 23, the second mounting ring 23 and air inlet pipe 19 thread connection.

[0034] Specific, the first mounting ring 22 of the first dust cover 20 and the air duct 7 are threadedly connected, and the second mounting ring 23 of the second dust cover 21 and the air inlet pipe 19 are threadedly connected, which facilitates the air inlet and outlet dustproof protection.

[0035] Please refer to Figure 1 、 Figure 2 and Figure 5 , as a kind of implementation of heat sink 6: heat sink 6 front and rear ends are provided with recess 24, two recesses 24 inside can be detachably provided with cover plate 25, two cover plates 25 upper and lower ends are provided with connecting plate 26, a plurality of connecting plate 26 are provided with first connecting hole 27, heat sink 6 upper and lower ends correspond to a plurality of first connecting hole 27 are provided with second connecting hole 28, furnace body 1 front and rear ends are provided with positioning seat 29, two cover plates 25 inner side end are provided with positioning column 30 correspondingly to positioning seat 29.

[0036] Specific, the first connecting hole 27 and the second connecting hole 28 are removed by bolt, the cover plate 25 is disassembled, and the internal heat sink 8 is cleaned. After cleaning, the cover plate 25 positioning column 30 is installed and positioned corresponding to the positioning seat 29, and the bolt is tightened and fixed through the first connecting hole 27 and the second connecting hole 28.

[0037] In summary, the whole equipment is used:

[0038] When in the processing production state, the silicon particles are placed in the crucible body 2, the embryo 4 and the crucible cover 5 are placed, the heating furnace body 1 is heated to 2000 DEG C or more, the silicon processing is carried out, the heat ring 8 on the furnace body 1 realizes the outward transmission of the internal heat, the drive motor 17 is started, the drive motor 17 drives the drive shaft 16 to rotate, the drive shaft 16 drives the fan 18 to rotate, realizes the air supply of the heat sink 6, the outside air enters the box 15 through the air inlet pipe 19, is transmitted to the heat sink 6 through the right side air duct 7, and is blown out through the left side air duct 7, improves the heat dissipation and cooling efficiency, and the first dust cover 20 and the second dust cover 21 are matched to realize the dustproof protection of air inlet and outlet.

[0039] When the inside heat dissipation seat 6 is cleaned, the bolts between the first connecting hole 27 and the second connecting hole 28 are removed, the cover plate 25 is disassembled, after the cover plate 25 is disassembled, the inside heat dissipation ring 8 is cleaned, after the cleaning is completed, the cover plate 25 is installed on the corresponding groove 24, the positioning shaft and the positioning column 30 are matched and installed, the first connecting hole 27 on the connecting plate 26 and the second connecting hole 28 on the heat dissipation seat 6 are aligned, the bolts are screwed and fixed, the cover plate 25 is convenient to disassemble and assemble, and the inside is convenient to clean.

[0040] When the whole support state is in the whole support state, the support sleeve 10 is adjusted by sliding relative to the support column 9, is adjusted to the appropriate position, the locking rod 13 is rotated, the locking rod 13 and the locking hole 12 are screwed, the locking rod 13 is inserted into the locking groove 14 on the inside, the height adjustment is locked, the gas sending mechanism is conveniently and stably supported, and the safety and stability during use are guaranteed.

[0041] In all the schemes mentioned above, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection or other known connection mode, which will not be repeated here, and the welding is preferred when the fixed connection is mentioned above, although the embodiments of the utility model have been shown and described, those skilled in the art can understand that the embodiments can be changed, modified, replaced and modified in various ways without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A self-bonding sintering silicon carbide apparatus, comprising a furnace body (1), wherein a crucible body (2) is provided inside the furnace body (1), a graphite base (3) is provided at the bottom end of the crucible body (2), a blank (4) is provided at the upper end of the crucible body (2), the blank (4) is centrally penetrated, and a crucible cover (5) is provided at the upper end of the blank (4), characterized in that: The furnace body (1) has a heat sink (6) on the rear side of its outer end face. Both ends of the heat sink (6) are provided with gas guide pipes (7). The outer end face of the furnace body (1) is provided with heat sink (6) and heat sink (8) is provided. Multiple heat sink (8) are provided. The right end of the gas guide pipe (7) on the right side is provided with a gas supply mechanism. The bottom end of the gas supply mechanism is provided with a support column (9). The outer end face of the support column (9) is provided with a support sleeve (10). The bottom end of the support sleeve (10) is provided with a base plate (11). The support sleeve (10) is symmetrically provided with locking holes (12). Both locking holes (12) are provided with locking rods (13). The locking rods (13) and locking holes (12) are threadedly connected. The support column (9) is provided with locking grooves (14) corresponding to the two locking rods (13).

2. The self-bonding sintering silicon carbide apparatus according to claim 1, characterized in that: The air supply mechanism includes a housing (15), a drive shaft (16), a drive motor (17), a fan blade (18), and an air inlet pipe (19). The housing (15) is connected to the right side of the air guide pipe (7). The drive shaft (16) is rotatably mounted on the housing (15). The drive motor (17) is mounted on the outer end of the drive shaft (16). The fan blade (18) is mounted on the inner end of the drive shaft (16). There are two air inlet pipes (19), which pass through the upper and lower sides of the right end face of the housing (15), respectively.

3. The self-bonding sintering silicon carbide apparatus according to claim 2, characterized in that: The left end of the air duct (7) on the left is provided with a first dust cover (20), and the two air inlets (19) on the right are each provided with a second dust cover (21).

4. The self-bonding sintering silicon carbide apparatus according to claim 3, characterized in that: The first dust cover (20) is provided with a first mounting ring (22), and the first mounting ring (22) and the air duct (7) are threadedly connected.

5. The self-bonding sintering silicon carbide apparatus according to claim 3, characterized in that: The two second dust covers (21) on the right side are each provided with a second mounting ring (23), and the second mounting ring (23) is threadedly connected to the air inlet pipe (19).

6. The self-bonding sintering silicon carbide apparatus according to claim 2, characterized in that: The heat sink (6) has grooves (24) at both the front and rear ends, and each of the two grooves (24) can be detachably fitted with a cover plate (25).

7. The self-bonding sintering silicon carbide apparatus according to claim 6, characterized in that: Both of the two cover plates (25) are provided with connecting plates (26) at their upper and lower ends. Each of the multiple connecting plates (26) is provided with a first connecting hole (27). The heat sink (6) is provided with a second connecting hole (28) at its upper and lower ends corresponding to the multiple first connecting holes (27). The first connecting holes (27) and the second connecting holes (28) are connected by bolts.

8. The self-bonding sintering silicon carbide apparatus according to claim 6, characterized in that: The furnace body (1) is provided with positioning seats (29) at both the front and rear ends, and the inner ends of the two cover plates (25) are provided with positioning posts (30) corresponding to the positioning seats (29).

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