CN220853115U

CN220853115U - Vacuum sintering furnace

Info

Publication number: CN220853115U
Application number: CN202322563455.1U
Authority: CN
Inventors: 杨照森
Original assignee: Ningbo Hengsheng Magnetic Industry Co ltd
Current assignee: Ningbo Hengsheng Magnetic Industry Co ltd
Priority date: 2023-09-20
Filing date: 2023-09-20
Publication date: 2024-04-26
Anticipated expiration: 2033-09-20

Abstract

The application relates to a vacuum sintering furnace, and relates to the field of sintering furnaces. The sintering furnace comprises a sintering furnace body, wherein one end of the sintering furnace body is horizontally provided with a threaded annular shell, and one end of the threaded annular shell is fixedly penetrated at the end part of the sintering furnace body; the furnace cover body is arranged at one end of the sintering furnace body, provided with a threaded ring shell, and comprises an outer shell, wherein the outer shell is arranged at the outer end of the threaded ring shell, the threaded shell is horizontally fixed at one end of the outer shell, which is close to the sintering furnace body, the threaded shell is in threaded connection with the inside of the threaded ring shell, a ceramic plate with a hollow structure is fixed in the inside of the threaded shell, and carbon fiber hard felts are fixed at two ends of the ceramic plate positioned in the inside of the threaded shell; one end of the opening and closing piece is fixed on the outer end face of the sintering furnace body, and the other end of the opening and closing piece is fixedly assembled on the other end face of the outer shell. The application avoids the heat in the sintering furnace from escaping through the gap of the furnace door, and improves the integral heat preservation effect of the sintering furnace.

Description

Vacuum sintering furnace

Technical Field

The application relates to the technical field of sintering furnaces, in particular to a vacuum sintering furnace.

Background

In the magnet processing industry, a magnet blank is required to be placed into a vacuum sintering furnace for sintering, the sintering furnace is a furnace which enables ceramic green compact solid particles to be mutually bonded at high temperature, crystal grains grow up, gaps and crystal boundaries gradually decrease, through substance transmission, the total volume of the furnace is contracted, the density of the furnace is increased, and finally the furnace is a compact polycrystalline sintered body with a certain microstructure.

Aiming at the related technology, the inventor finds that a layer of heat insulation material is arranged in the inner walls of the furnace body and the furnace door, the heat insulation material can prevent heat from being transmitted outwards through the furnace body wall, but the sintering furnace body and the furnace door are in rotary connection through a hinge, so that a gap exists between the furnace body and the furnace door after rotary closing, heat in the sintering furnace is easy to escape through the gap between the furnace door and the furnace body, and the whole heat insulation effect of the sintering furnace is reduced.

Disclosure of utility model

In order to solve the problem that a layer of heat-insulating material is arranged in the inner walls of a furnace body and a furnace door, the heat-insulating material can block heat from being transmitted outwards through the furnace body wall, but gaps exist between a sintering furnace body and the furnace door, so that heat in the sintering furnace is easy to escape through the gaps of the furnace door, and the integral heat-insulating effect of the sintering furnace is reduced.

The application provides a vacuum sintering furnace which adopts the following technical scheme:

A vacuum sintering furnace, comprising:

The sintering furnace comprises a sintering furnace body, wherein one end of the sintering furnace body is horizontally provided with a threaded annular shell, and one end of the threaded annular shell is fixedly penetrated at the end part of the sintering furnace body;

The furnace cover body is arranged at one end of the sintering furnace body, provided with a threaded ring shell, and comprises an outer shell, wherein the outer shell is arranged at the outer end of the threaded ring shell, the threaded shell is horizontally fixed at one end of the outer shell, which is close to the sintering furnace body, the threaded shell is in threaded connection with the inside of the threaded ring shell, a ceramic plate with a hollow structure is fixed in the inside of the threaded shell, and carbon fiber hard felts are fixed at two ends of the ceramic plate in the inside of the threaded shell;

And one end of the opening and closing piece is fixed on the outer end surface of the sintering furnace body, and the other end of the opening and closing piece is fixedly assembled on the outer end surface of the outer shell.

Through adopting above-mentioned technical scheme, place the magnetite in the inside of fritting furnace body in the use, then use piece upset bell body to reach the screw thread ring shell tip of fritting furnace body tip that opens and shuts, then piece drive bell body rotates that opens and shuts, screw thread shell screw thread equipment on the shell in the drive bell body is in screw thread ring shell, simultaneously pivoted bell body screw thread ring shell tip insert in screw thread ring shell's sealed slot, thereby accomplish the end closure of bell body and fritting furnace body, insert the ring on the bell body and insert in screw thread ring shell's sealed slot, through the clearance between the sealed slot of zirconia fiber cotton shutoff screw thread ring shell on the interior outer terminal surface of insert ring and insert the ring, the inside ceramic plate and the hard felt composite construction of carbon fiber that sets up of screw thread shell in the bell body simultaneously, effectively isolate heat and spill outside through the bell body, thereby effectively block heat and spill, screw thread ring shell screw thread equipment on screw thread shell and the furnace body and the body of the outside transmission of the bell, the clearance that exists separates the whole fire door takes place for the separation between the bell body and the fritting furnace body, the inside heat of fritting furnace through the clearance of inserting the inside shutoff of fritting furnace, the thermal insulation effect that improves the fritting furnace takes place.

Optionally, an insert ring is fixed at the end of the threaded shell, and zirconia cellucotton is fixed on the inner circumferential surface and the outer circumferential surface of the insert ring.

Through adopting above-mentioned technical scheme, insert the ring grafting on the bell body in the sealed slot of screw thread ring shell, through inserting the inside and outside zirconia fiber cotton on the terminal surface of ring and have high temperature resistant and thermal-insulated characteristic, the clearance between sealed slot of shutoff screw thread ring shell and the insert ring effectively separates heat and spills outside through the bell body to effectively separate heat and spill, improve the holistic heat preservation effect of fritting furnace.

Optionally, a sealing slot is formed in one end, close to the sintering furnace body, of the inner portion of the threaded ring shell, and an inserting ring is inserted into the sealing slot.

By adopting the technical scheme, the insert ring on the furnace cover body is inserted into the sealing slot of the threaded ring shell, the gap between the sealing slot of the threaded ring shell and the insert ring is blocked, and the integral heat preservation effect of the sintering furnace is improved.

Optionally, aluminum silicate plates are fixedly arranged on the inner wall of the sintering furnace body in a surrounding mode, and asbestos plates are fixedly arranged on the inner end face and the outer end face of the aluminum silicate plates.

Through adopting above-mentioned technical scheme, aluminum silicate plate and asbestos board compound setting that sets up on the inner wall of fritting furnace body utilize aluminum silicate plate and asbestos board to have high temperature resistant and thermal-insulated characteristic to effectively separate the heat and spill, improve the holistic heat preservation effect of fritting furnace.

Optionally, the opening and closing piece comprises a rotating shaft frame, the rotating shaft frame is horizontally fixed on the outer end face of the sintering furnace body, the rotating shaft frame is horizontally rotated and connected with a turnover plate, the other end of the turnover plate is horizontally slidably provided with a sliding frame, and the end part of the sliding frame is horizontally rotated and connected with a connecting rod.

Through adopting above-mentioned technical scheme, use the vertical pivot that is fixed with on the swivel mount top surface, rotate on the turnover plate and be connected with the turnover plate, utilize the turnover plate to enclose the pivot rotation on the swivel mount top surface for the deflection switches the turnover bell body, and the horizontal slip's that the turnover plate other end set up the balladeur train simultaneously is used for the horizontal slip to switch the bell body and installs in the screw thread ring shell, and the connecting rod rotates to be connected on the balladeur train for later stage rotates to install and connects the bell body and install in the screw thread ring shell.

Optionally, a connecting seat is fixed on the outer end face of the outer shell, and is fixedly connected with one end part of the connecting rod, the end part of the sliding frame is horizontally fixed with a rotating motor, the output end of the rotating motor is provided with a driving gear, the other end of the connecting rod is fixed with a driven gear, and the driven gear is meshed with the driving gear.

Through adopting above-mentioned technical scheme, the rotation motor that starts on the balladeur train in use drives the driving gear and rotates, utilizes driving gear meshing driven gear to rotate and drives the connecting rod and rotate on the balladeur train to drive the screw thread equipment or dismantle of bell body in the screw thread ring shell of fritting furnace body.

Optionally, the end of the turnover plate is horizontally fixed with a rod frame, the other end of the sliding frame is fixed with a sliding seat, and the sliding seat on the sliding frame is slidably arranged on the rod frame.

Through adopting above-mentioned technical scheme, utilize the slide of balladeur train tip in the use to slide on the pole frame level to the installation is advanced to the screw thread of direction bell body in the screw thread ring shell of fritting furnace body.

Optionally, the turning hydraulic rod is horizontally connected to the turning shaft bracket in a rotating manner, and the output end of the turning hydraulic rod is connected to the top surface of the turning plate in a rotating manner.

Through adopting above-mentioned technical scheme, start upset hydraulic stem flexible drive upset board one end in the use and rotate on the pivot frame level to bear the bell body and open and shut on the fritting furnace body.

In summary, the present application includes at least one of the following beneficial technical effects: during the use, place the magnetite in the inside of fritting furnace body, then use piece upset bell body to reach the screw thread ring shell tip of fritting furnace body tip, then piece drive bell body that opens and shuts rotates, screw thread shell screw thread equipment on the shell in the drive bell body is in the screw thread ring shell, simultaneously the inserted ring of pivoted bell body screw thread ring shell tip peg graft in the sealed slot of screw thread ring shell, thereby accomplish the tip closure of bell body and fritting furnace body, insert the ring on the bell body and peg graft in the sealed slot of screw thread ring shell, through the clearance between the sealed slot of the cotton shutoff screw thread ring shell of zirconia fiber on the inner and outer terminal surface of inserted ring and the inserted ring, the inside ceramic plate and the hard felt composite construction of carbon fiber that set up of screw thread shell in the bell body, effectively separate heat and spill outside through the bell body, thereby effectively separate heat and spill, screw thread ring shell screw thread equipment on bell body and the fritting furnace body, the clearance that exists separates the shutoff is carried out to avoid the inside heat of fritting furnace to take place through the gap emergence of fritting furnace, the whole thermal insulation effect that improves.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application.

FIG. 2 is a schematic view of the structure of the embodiment of the present application in its entirety in an exploded state;

FIG. 3 is a schematic view showing the structure of a sintering furnace body in an exploded state according to an embodiment of the present application;

FIG. 4 is a schematic view showing the structure of the opening and closing member in an exploded state according to the embodiment of the present application;

FIG. 5 is a schematic view showing the structure of the lid member in an exploded state according to the embodiment of the present application.

Reference numerals illustrate: 1. a sintering furnace body; 11. a threaded annular shell; 12. sealing the slot; 13. asbestos board; 14. aluminum silicate plates; 2. a furnace cover body; 21. an outer housing; 211. a connecting seat; 22. a threaded shell; 23. a ceramic plate; 24. inserting a ring; 25. carbon fiber hard felt; 26. zirconia fiber cotton; 3. an opening and closing member; 31. a rotating shaft bracket; 32. a turnover plate; 33. a pole frame; 34. a carriage; 35. a connecting rod; 36. a rotating motor; 37. a drive gear; 38. a driven gear; 39. and (5) turning over the hydraulic rod.

Detailed Description

The present application will be described in further detail with reference to the accompanying drawings.

The embodiment of the application discloses a vacuum sintering furnace. Referring to fig. 1, 2 and 5, a vacuum sintering furnace includes: the sintering furnace comprises a sintering furnace body 1, wherein a threaded ring shell 11 is horizontally arranged at one end of the sintering furnace body 1, and one end of the threaded ring shell 11 is fixedly penetrated at the end part of the sintering furnace body 1; the furnace cover body 2, the furnace cover body 2 sets up the one end that installs screw thread ring shell 11 at sintering furnace body 1. Meanwhile, the furnace cover body 2 comprises an outer shell 21, wherein the outer shell 21 is arranged at the outer end of the threaded annular shell 11, a threaded shell 22 is horizontally fixed at one end, close to the sintering furnace body 1, of the outer shell 21, the threaded shell 22 is in threaded connection with the inner part of the threaded annular shell 11, a ceramic plate 23 of a hollow structure is fixed in the threaded shell 22, and carbon fiber hard felts 25 are fixed at two ends of the ceramic plate 23, which are positioned in the threaded shell 22.

In addition, in the present embodiment, the vacuum sintering furnace further includes an opening and closing member 3, one end of the opening and closing member 3 is fixed to the outer end surface of the sintering furnace body 1, and the other end of the opening and closing member 3 is fixedly assembled to the outer end surface of the outer case 21.

In addition, a sealing slot 12 is formed in one end of the threaded ring shell 11, which is close to the sintering furnace body 1, an insert ring 24 is fixed to the end of the threaded shell 22, and the sealing slot 12 is in plug-in fit with the insert ring 24. The insert ring 24 on the furnace cover body 2 is inserted into the seal slot 12 of the threaded ring shell 11, so that the gap between the seal slot 12 of the threaded ring shell 11 and the insert ring 24 is blocked, and the integral heat preservation effect of the sintering furnace is improved.

Referring to fig. 3 and 5, zirconia fiber cotton 26 is fixed to both the inner and outer circumferential surfaces of the insert ring 24. The insert ring 24 on the furnace cover body 2 is inserted into the sealing slot 12 of the threaded ring shell 11, zirconia fiber cotton 26 on the inner end surface and the outer end surface of the insert ring 24 has the characteristics of high temperature resistance and heat insulation, gaps between the sealing slot 12 of the threaded ring shell 11 and the insert ring 24 are blocked, heat is effectively isolated from being dissipated to the outside through the furnace cover body 2, heat dissipation is effectively prevented, and the integral heat preservation effect of the sintering furnace is improved.

In use, a magnet is placed in the sintering furnace body 1, then the opening and closing piece 3 is used for overturning the furnace cover body 2 to reach the end part of the threaded ring shell 11 at the end part of the sintering furnace body 1, then the opening and closing piece 3 drives the furnace cover body 2 to rotate, the threaded shell 22 on the outer shell 21 in the furnace cover body 2 is driven to be assembled in the threaded ring shell 11 in a threaded manner, and meanwhile, the insert ring 24 at the end part of the threaded ring shell 11 of the rotating furnace cover body 2 is inserted into the sealing slot 12 of the threaded ring shell 11, so that the end part of the furnace cover body 2 and the end part of the sintering furnace body 1 are closed.

Simultaneously, insert ring 24 on the bell body 2 is pegged graft in the sealed slot 12 of screw ring shell 11, through the clearance between the sealed slot 12 of screw ring shell 11 and insert ring 24 of zirconia fiber cotton 26 shutoff screw ring shell 11 on the inside and outside terminal surface of insert ring 24, the inside ceramic plate 23 and the hard felt 25 composite construction of carbon fiber that sets up of screw shell 22 in the bell body 2 simultaneously, effectively isolate heat and spill outside through bell body 2, thereby effectively separate the heat and spill, ceramic plate 23 and the hard felt 25 of carbon fiber can separate the heat and pass through bell body wall and outwards transmit, wherein, through screw shell 22 and the screw ring shell 11 screw assembly on the sintering furnace body, the clearance that exists between bell body 2 and the sintering furnace body 1 carries out the separation shutoff, avoid the inside heat of sintering furnace to take place the loss through the gap emergence of furnace gate, improve the holistic heat preservation effect of sintering furnace.

Referring to fig. 3, aluminum silicate plates 14 are annularly provided on the inner wall of the sintering furnace body 1, and asbestos plates 13 are fixed to both inner and outer end surfaces of the aluminum silicate plates 14. The aluminum silicate plate 14 and the asbestos plate 13 are arranged on the inner wall of the sintering furnace body 1 in a compounding way, and the aluminum silicate plate 14 and the asbestos plate 13 have the characteristics of high temperature resistance and heat insulation, so that heat is effectively prevented from being dissipated, and the overall heat preservation effect of the sintering furnace is improved.

Referring to fig. 4, the opening and closing member 3 includes a rotating shaft frame 31, the rotating shaft frame 31 is horizontally fixed on the outer end surface of the sintering furnace body 1, and a turnover plate 32 is horizontally rotatably connected to the rotating shaft frame 31, the other end of the turnover plate 32 is horizontally slidably mounted with a carriage 34, and the end of the carriage 34 is horizontally rotatably connected with a link 35. The rotary shaft is vertically fixed on the top surface of the rotary shaft frame 31, the turnover plate 32 is rotatably connected with the turnover plate 32, and the turnover plate 32 is utilized to rotate around the rotary shaft on the top surface of the rotary shaft frame 31 and is used for deflecting and switching the turnover furnace cover body 2.

In addition, the horizontal sliding carriage 34 that the other end of the turnover plate 32 set up for horizontal sliding switches the bell body 2 to install in the screw ring shell 11, the connecting rod 35 rotates and connects on the carriage 34, the connecting rod 35 tip is fixed in the terminal surface center department of the bell body 2 through the bolt, is used for later stage to rotate and installs and connect the bell body 2 and install in the screw ring shell 11. The outer end surface of the outer casing 21 is fixed with a connecting seat 211, the connecting seat 211 is fixedly connected with one end part of a connecting rod 35, the end part of a carriage 34 is horizontally fixed with a rotating motor 36, the output end of the rotating motor 36 is provided with a driving gear 37, the other end of the connecting rod 35 is fixed with a driven gear 38, and the driven gear 38 is meshed with the driving gear 37. In use, the rotating motor 36 on the carriage 34 is started to drive the driving gear 37 to rotate, and the driving gear 37 is meshed with the driven gear 38 to rotate to drive the connecting rod 35 to rotate on the carriage 34, so that the furnace cover body 2 is driven to be assembled or disassembled in the screw thread ring shell 11 of the sintering furnace body 1.

Referring to fig. 4, a rod frame 33 is horizontally fixed to the movable end of the turnover plate 32, a slide is fixed to the other end of the slide frame 34, and the slide on the slide frame 34 is slidably mounted on the rod frame 33, in use, the slide at the end of the slide frame 34 is horizontally slid on the rod frame 33, so that the guide furnace cover body 2 is threadedly mounted in the threaded annular shell 11 of the sintering furnace body 1. The turning hydraulic rod 39 is horizontally and rotatably connected to the rotating shaft frame 31, and an output end of the turning hydraulic rod 39 is rotatably connected to the top surface of the turning plate 32. In use, the turning hydraulic rod 39 is started to stretch and retract to drive one end of the turning plate 32 to horizontally rotate on the rotating shaft frame 31, so that the bearing furnace cover body 2 is opened and closed on the sintering furnace body 1.

The implementation principle of the vacuum sintering furnace provided by the embodiment of the application is as follows: in use, a magnet is placed in the sintering furnace body 1, then a rotating shaft is vertically fixed on the top surface of a rotating shaft frame 31 in the opening and closing piece 3, the rotating plate 32 is rotationally connected with the rotating plate 32, the rotating plate 32 rotates around the rotating shaft on the top surface of the rotating shaft frame 31, the turnover furnace cover body 2 reaches the end part of a threaded ring shell 11 at the end part of the sintering furnace body 1, then a rotating motor 36 on a sliding frame 34 is started to drive a driving gear 37 to rotate, the driving gear 37 is meshed with a driven gear 38 to rotate to drive a connecting rod 35 to rotate on the sliding frame 34, the threaded shell 22 on an outer shell 21 in the furnace cover body 2 is driven to be assembled in the threaded ring shell 11 in a threaded manner, and meanwhile, an inserting ring 24 at the end part of the threaded ring shell 11 of the rotating furnace cover body 2 is inserted into a sealing slot 12 of the threaded ring shell 11, so that the end part of the furnace cover body 2 and the sintering furnace body 1 is closed.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. A vacuum sintering furnace, comprising:

The sintering furnace comprises a sintering furnace body (1), wherein a threaded annular shell (11) is horizontally arranged at one end of the sintering furnace body (1), and one end of the threaded annular shell (11) is fixedly penetrated at the end part of the sintering furnace body (1);

The furnace cover body (2), the one end of screw thread ring shell (11) is installed at sintering furnace body (1) to furnace cover body (2), furnace cover body (2) include shell body (21), wherein shell body (21) set up the outer end at screw thread ring shell (11), and shell body (21) are close to sintering furnace body (1) one end level and are fixed with screw thread shell (22), screw thread shell (22) threaded connection is in the inside of screw thread ring shell (11), and the inside of screw thread shell (22) is fixed with ceramic plate (23) of hollow structure, and the inside of screw thread shell (22) is located the both ends of ceramic plate (23) and all is fixed with carbon fiber hard felt (25);

The sintering furnace comprises an opening and closing piece (3), wherein one end of the opening and closing piece (3) is fixed on the outer end face of the sintering furnace body (1), and the other end of the opening and closing piece (3) is fixedly assembled on the outer end face of the outer shell (21).

2. A vacuum sintering furnace according to claim 1, characterized in that: an insert ring (24) is fixed at the end part of the thread shell (22), and zirconia fiber cotton (26) is fixed on the inner circumference surface and the outer circumference surface of the insert ring (24).

3. A vacuum sintering furnace according to claim 2, characterized in that: a sealing slot (12) is formed in one end, close to the sintering furnace body (1), of the inside of the threaded ring shell (11), and an inserting ring (24) is inserted into the sealing slot (12).

4. A vacuum sintering furnace according to claim 1, characterized in that: aluminum silicate plates (14) are fixedly arranged on the inner wall of the sintering furnace body (1) in a surrounding mode, and asbestos plates (13) are fixedly arranged on the inner end face and the outer end face of the aluminum silicate plates (14).

5. A vacuum sintering furnace according to claim 1, characterized in that: the opening and closing piece (3) comprises a rotating shaft frame (31), the rotating shaft frame (31) is horizontally fixed on the outer end face of the sintering furnace body (1), the rotating shaft frame (31) is horizontally rotated and connected with a turnover plate (32), the other end of the turnover plate (32) is horizontally slidably provided with a sliding frame (34), and the end part of the sliding frame (34) is horizontally rotated and connected with a connecting rod (35).

6. A vacuum sintering furnace according to claim 5, characterized in that: the automatic sliding device is characterized in that a connecting seat (211) is fixed on the outer end face of the outer shell (21), the connecting seat (211) is fixedly connected with one end of a connecting rod (35), a rotating motor (36) is horizontally fixed at the end of a sliding frame (34), a driving gear (37) is mounted at the output end of the rotating motor (36), a driven gear (38) is fixed at the other end of the connecting rod (35), and the driven gear (38) is meshed with the driving gear (37).

7. A vacuum sintering furnace according to claim 5, characterized in that: the end of the turnover plate (32) is horizontally fixed with a rod frame (33), the other end of the sliding frame (34) is fixed with a sliding seat, and the sliding seat on the sliding frame (34) is slidably arranged on the rod frame (33).

8. A vacuum sintering furnace according to claim 5, characterized in that: the rotating shaft frame (31) is horizontally and rotatably connected with a turnover hydraulic rod (39), and the output end of the turnover hydraulic rod (39) is rotatably connected to the top surface of the turnover plate (32).