CN219433788U - Silicon carbide ceramic sintering furnace - Google Patents

Abstract

The utility model discloses a silicon carbide ceramic sintering furnace, which comprises a base, wherein a sintering furnace body is fixedly arranged at the top of the base, a nitrogen gas storage chamber is fixedly arranged at the left side of the top of the base, an electromagnetic valve and an air pump are opened, a motor is started, the motor starts to drive a sealing cylinder and a sealing rod to move rightwards simultaneously, the sealing cylinder moves to enable the front part and the rear part of a second square tube to leak out, the longer the moving distance of the sealing cylinder is, the larger the area of an exhaust port leaks out, at the moment, gas in the sintering furnace body can be discharged, the sealing rod moves rightwards to enable a first square tube to be communicated with air pipes, the effect of different numbers of communicated air pipes can be achieved according to the difference of the moving distance, the effect of conveying nitrogen gas according to the flow rate can be achieved, the effect of uniformly filling nitrogen into the sintering furnace body can be achieved through the arrangement of a plurality of air pipes, and the inflation efficiency is increased.

Description

Silicon carbide ceramic sintering furnace

Technical Field

The utility model relates to the technical field of silicon carbide ceramic sintering, in particular to a silicon carbide ceramic sintering furnace.

Background

The silicon carbide ceramic not only has excellent normal temperature mechanical properties, but also has the best high temperature mechanical properties among known ceramic materials, is the material with the best high temperature strength among ceramic materials, and is widely applied to a plurality of industrial fields at present, and in the production process flow of the silicon carbide ceramic, the sintering flow of the silicon carbide ceramic is particularly important, and most of silicon carbide sintering furnaces on the market have the following defects in use at present:

1. during sintering, in order to prevent oxidation of products in the sintering furnace, nitrogen needs to be filled into the sintering furnace according to a specified flow, and nitrogen is mostly conveyed through a single pipeline in a common sintering furnace on the market, so that the nitrogen filling time is long, and in addition, an air suction device and an air discharge device need to be manually controlled, so that the processing efficiency is reduced;

2. the common sintering furnace in the market needs to manually close the air extracting and deflating device and then start the heating device when filling nitrogen, the operation flow is complex, and the labor is consumed;

therefore, there is a need to design a silicon carbide ceramic sintering furnace that is automatically charged with nitrogen and automatically ignites when the nitrogen is charged.

Disclosure of Invention

The utility model aims to provide a silicon carbide ceramic sintering furnace for solving the problems of the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the silicon carbide ceramic sintering furnace comprises a base, wherein a sintering furnace body is fixedly arranged at the top of the base, a nitrogen gas storage chamber is fixedly arranged at the left side of the top of the base, an air inlet mechanism is communicated with the rear part of the sintering furnace body, and an exhaust mechanism is communicated with the surface of the sintering furnace body;

the air inlet mechanism comprises a first square tube communicated with the right side of the nitrogen gas storage chamber, an air pump is fixedly arranged on the left side of the surface of the first square tube, the surface of the first square tube is communicated with a plurality of air delivery tubes, the front ends of the air delivery tubes penetrate through the sintering furnace body and extend into the sintering furnace body, and sealing rods are slidably arranged in the first square tube;

the exhaust mechanism comprises an exhaust pipe which is communicated with the surface of the sintering furnace body, an electromagnetic valve is fixedly arranged on the surface of the exhaust pipe, a second square pipe is communicated with the front end of the exhaust pipe, exhaust ports are formed in the front portion and the rear portion of the second square pipe, a sealing cylinder is slidably arranged on the surface of the second square pipe, and a U-shaped rod is fixedly arranged at the top of the sealing cylinder and the top of the sealing rod.

Preferably, the top fixed mounting of base has the motor, the output shaft of motor has the threaded rod through shaft coupling fixed mounting, the surface threaded connection of threaded rod has the thread bush, the top fixed mounting of base has the trigger button, the top of thread bush is through connecting rod fixed connection in the bottom of sealed section of thick bamboo.

Preferably, the top and the bottom of the inner cavity of the sintering furnace body are fixedly provided with heating plates matched with the trigger button.

Preferably, the inner wall of the sintering furnace body is fixedly provided with a placing plate.

Preferably, the bottom of the thread bush is fixedly provided with a convex block.

Preferably, the right side of the sintering furnace body is hinged with a cover plate through an opening.

Compared with the prior art, the utility model has the beneficial effects that:

1. this carborundum pottery fritting furnace to through opening solenoid valve and air pump to start the motor, the motor starts to drive seal tube and sealing rod and moves right simultaneously, and seal tube removes and makes the leakage of second square tube front portion and rear portion, and the longer the seal tube travel distance is then the area that the gas vent leaked is bigger, and the inside gas-passing exhaust of fritting furnace body this moment, sealing rod moves right and makes first square tube and gas-supply pipe intercommunication to can reach the different effect of intercommunication gas-supply pipe quantity according to the difference of travel distance, thereby reach the effect of carrying nitrogen gas according to the flow, and can reach the effect of evenly filling nitrogen gas into the inside of fritting furnace body through setting up a plurality of gas-supply pipes, increased the inflation efficiency.

2. This carborundum pottery fritting furnace through control motor start and make the motor drive threaded rod reversal, and threaded rod reversal drives the thread bush and removes left, and the thread bush removes left and makes the seal tube shutoff to the gas vent, and the sealing rod shutoff is carried out to a plurality of gas-supply pipes simultaneously, and when the thread bush drove the lug to remove to trigger button directly over, the lug triggers trigger button and starts two hot plates and heat the product of placing the board top, has reached can be fast after nitrogen gas filling automatic ignition's effect, has saved the manpower.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a top view of a first square tube, gas tube and U-bar configuration of the present utility model;

FIG. 3 is a schematic view of the structure of the heating plate, air delivery pipe and placement plate of the present utility model;

fig. 4 is a schematic view showing the structures of the heating plate, the second square tube and the exhaust port according to the present utility model.

In the figure: 1. a base; 2. a sintering furnace body; 3. a nitrogen gas storage chamber; 4. a first square tube; 5. a gas pipe; 6. an exhaust pipe; 7. a second square tube; 8. a sealing cylinder; 9. a motor; 10. a threaded rod; 11. an exhaust port; 12. a U-shaped rod; 13. an electromagnetic valve; 14. an air pump; 15. a sealing rod; 16. a thread sleeve; 17. a bump; 18. triggering a button; 19. a heating plate; 20. the plate is placed.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-4, the utility model provides a silicon carbide ceramic sintering furnace, which comprises a base 1, wherein a sintering furnace body 2 is fixedly arranged at the top of the base 1, a placing plate 20 is fixedly arranged on the inner wall of the sintering furnace body 2, a nitrogen gas storage chamber 3 is fixedly arranged at the left side of the top of the base 1, an air inlet mechanism is communicated with the rear part of the sintering furnace body 2, and an air exhaust mechanism is communicated with the surface of the sintering furnace body 2;

specific: the air inlet mechanism comprises a first square tube 4 communicated with the right side of the nitrogen gas storage chamber 3, an air pump 14 is fixedly arranged on the left side of the surface of the first square tube 4, an air pipe 5 is communicated with the surface of the first square tube 4, a plurality of air pipes 5 are arranged on the air pipe 5, the front ends of the air pipes 5 penetrate through the sintering furnace body 2 and extend to the inside of the sintering furnace body 2, a sealing rod 15 is slidably arranged in the first square tube 4, the surface of the sealing rod 15 is made of rubber, the surface of the sealing rod 15 is attached to the inner wall of the first square tube 4, the rear end of the air pipe 5 can be sealed, the air exhaust mechanism comprises an exhaust pipe 6 communicated with the surface of the sintering furnace body 2, an electromagnetic valve 13 is fixedly arranged on the surface of the exhaust pipe 6, the front end of the exhaust pipe 6 is communicated with a second square tube 7, an exhaust port 11 is respectively arranged at the front part and the rear part of the second square tube 7, a sealing cylinder 8 is slidably arranged on the surface of the second square tube 7, the inner wall of the sealing cylinder 8 is made of rubber, the inner wall of the sealing cylinder 8 is attached to the surface of the second square tube 7, the exhaust port 11 can be sealed, and the top of the sealing cylinder 8 is fixedly arranged on the sealing rod 12.

Wherein: the top fixed mounting of base 1 has motor 9, motor 9 is servo motor, the output shaft of motor 9 has threaded rod 10 through shaft coupling fixed mounting, threaded rod 10's surface threaded connection has thread bush 16, the bottom fixed mounting of thread bush 16 has lug 17, the top fixed mounting of base 1 has trigger button 18, the hot plate 19 starts when trigger button 18 is pressed, hot plate 19 closes when trigger button 18 is not pressed, the top of thread bush 16 passes through connecting rod fixed connection in the bottom of sealed section of thick bamboo 8, the top and the bottom of fritting furnace body 2 inner chamber are all fixed mounting have with trigger button 18 matched with hot plate 19 that uses, hot plate 19 and trigger button 18 electric connection, but through setting up motor 9, make motor 9 automatic control nitrogen gas's transport flow, but through the start-stop of motor 9 automatic control hot plate 19, the manpower is saved.

Wherein: the right side of the sintering furnace body 2 is hinged with a cover plate through an opening, and the right side of the sintering furnace body 2 is sealed after the cover plate is closed.

Working principle: the utility model relates to a silicon carbide ceramic sintering furnace, which is characterized in that a cover plate on the right side of a sintering furnace body 2 is opened, a substitute product is placed on a placing plate 20 in the sintering furnace body 2, then, a cover plate is closed, an electromagnetic valve 13 and an air pump 14 are opened, the air pump 14 is started to enable nitrogen in a nitrogen gas storage chamber 3 to be conveyed into the sintering furnace body 2 through a first square pipe 4 and an air conveying pipe 5, after the electromagnetic valve 13 is opened, gas in the sintering furnace body 2 can be conveyed into a second square pipe 7 through an exhaust pipe 6, then, a motor 9 can be started, the motor 9 is started to drive a threaded rod 10 to rotate, the threaded rod 10 rotates to drive a threaded sleeve 16 to move rightwards, the threaded sleeve 16 moves to drive a sealing cylinder 8 to move rightwards, the sealing cylinder 8 leaks out of an exhaust port 11 at the front part and the rear part of the second square pipe 7, at the moment, the gas in the sintering furnace body 2 can be exhausted through the exhaust port 11, and the sealing cylinder 8 moves to drive the U-shaped rod 12 to move, the U-shaped rod 12 moves to drive the sealing rod 15 to move, the quantity of the opened gas pipes 5 is different when the sealing rod 15 moves rightwards for different distances, so that the effect of conveying nitrogen according to the specified flow is achieved, when the nitrogen in the sintering furnace body 2 is full, the motor 9 can be controlled to drive the threaded rod 10 to rotate reversely, the threaded rod 10 rotates reversely to drive the threaded sleeve 16 to move leftwards, the threaded sleeve 16 moves leftwards to drive the sealing cylinder 8 to move leftwards, the sealing cylinder 8 seals the gas outlet 11, simultaneously the sealing rod 15 moves leftwards to seal a plurality of gas pipes 5, when the threaded sleeve 16 drives the lug 17 to move right above the trigger button 18, the lug 17 triggers the trigger button 18 and starts the two heating plates 19 to heat the product at the top of the placing plate 20, after the heating is finished, the motor 9 can be controlled to start, the lug 17 stops triggering the trigger button 18, and the heating plate 19 is closed.

What is not described in detail in this specification is prior art known to those skilled in the art.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. The utility model provides a carborundum pottery fritting furnace, includes base (1), its characterized in that: the sintering furnace is characterized in that the top of the base (1) is fixedly provided with a sintering furnace body (2), the left side of the top of the base (1) is fixedly provided with a nitrogen gas storage chamber (3), the rear part of the sintering furnace body (2) is communicated with an air inlet mechanism, and the surface of the sintering furnace body (2) is communicated with an exhaust mechanism;

the air inlet mechanism comprises a first square tube (4) communicated with the right side of the nitrogen gas storage chamber (3), an air pump (14) is fixedly arranged on the left side of the surface of the first square tube (4), an air pipe (5) is communicated with the surface of the first square tube (4), a plurality of air pipes (5) are arranged, the front ends of the air pipes (5) penetrate through the sintering furnace body (2) and extend into the sintering furnace body (2), and a sealing rod (15) is slidably arranged in the first square tube (4);

the exhaust mechanism comprises an exhaust pipe (6) communicated with the surface of the sintering furnace body (2), an electromagnetic valve (13) is fixedly arranged on the surface of the exhaust pipe (6), a second square pipe (7) is communicated with the front end of the exhaust pipe (6), exhaust ports (11) are formed in the front portion and the rear portion of the second square pipe (7), a sealing cylinder (8) is arranged on the surface of the second square pipe (7) in a sliding mode, and a U-shaped rod (12) is fixedly arranged at the top of the sealing cylinder (8) and the top of a sealing rod (15).

2. A silicon carbide ceramic sintering furnace according to claim 1, wherein: the utility model discloses a sealing device for the sealed cylinder, including base (1), screw sleeve (16), connecting rod, trigger button (18) and connecting rod, the top fixed mounting of base (1) has motor (9), the output shaft of motor (9) has threaded rod (10) through shaft coupling fixed mounting, the surface threaded connection of threaded rod (10) has screw sleeve (16), the top fixed mounting of base (1) has trigger button (18), the bottom in sealed cylinder (8) is passed through at the top of screw sleeve (16).

3. A silicon carbide ceramic sintering furnace according to claim 2, wherein: the top and the bottom of the inner cavity of the sintering furnace body (2) are fixedly provided with heating plates (19) which are matched with the trigger button (18) for use.

4. A silicon carbide ceramic sintering furnace according to claim 1, wherein: the inner wall of the sintering furnace body (2) is fixedly provided with a placing plate (20).

5. A silicon carbide ceramic sintering furnace according to claim 2, wherein: the bottom of the thread bush (16) is fixedly provided with a lug (17).

6. A silicon carbide ceramic sintering furnace according to claim 1, wherein: the right side of the sintering furnace body (2) is hinged with a cover plate through an opening.