CN220520592U - Vacuum nitriding tempering furnace - Google Patents
Vacuum nitriding tempering furnace Download PDFInfo
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- CN220520592U CN220520592U CN202321867618.9U CN202321867618U CN220520592U CN 220520592 U CN220520592 U CN 220520592U CN 202321867618 U CN202321867618 U CN 202321867618U CN 220520592 U CN220520592 U CN 220520592U
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- 238000005121 nitriding Methods 0.000 title claims abstract description 25
- 238000005496 tempering Methods 0.000 title claims abstract description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 17
- 239000000110 cooling liquid Substances 0.000 claims description 3
- 229910001873 dinitrogen Inorganic materials 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 12
- 230000017525 heat dissipation Effects 0.000 abstract description 9
- 239000007769 metal material Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Furnace Details (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model relates to the technical field of metal heat treatment, in particular to a vacuum nitriding tempering furnace, which provides space and heating environment through a reaction device so as to reduce heat dissipation; the reaction device is sealed and opened through the lifting device, so that mechanization is realized, the labor intensity of operators is reduced, the loss caused by equipment collision in the sealing process is reduced, the workpiece is driven to rotate through the rotating device, so that the workpiece can be heated uniformly, nitrogen in the device is driven to flow, the nitrogen is distributed uniformly, a pipeline communicated with the outside in the reaction device is cooled through the cooling device, the damage to external equipment caused by heat following the pipeline is prevented, and the protection and practicability of the device are improved; the device comprises a reaction device, a lifting device, a rotating device and a cooling device, wherein the lifting device is arranged on the reaction device, the rotating device is arranged on the lifting device, and the cooling device is arranged on the lifting device.
Description
Technical Field
The utility model relates to the technical field of metal heat treatment, in particular to a vacuum nitriding tempering furnace.
Background
The nitriding tempering furnace is a heat treatment device and is mainly used for nitriding and tempering metal materials; nitriding is a heat treatment process, in which nitrogen atoms are permeated into a metal lattice by reacting nitrogen with the surface of a metal material at a high temperature to form a nitride layer, so as to improve the surface hardness, wear resistance and corrosion resistance of the metal material; tempering is a step after nitriding treatment, and the metal material is heated at a certain temperature to release residual stress in the metal material, refine grains and improve the toughness and strength of the material; the nitriding tempering furnace combines two process steps of nitriding and tempering, and can finish nitriding and tempering treatment in the same equipment.
The existing nitriding tempering furnace needs manual cooperation machinery to install the sealing cover in the use process, the equipment is damaged due to the fact that collision is easy to occur in the installation process, the uniformity degree of nitrogen distribution in the furnace cannot be guaranteed after nitrogen is flushed into the furnace, and the heating effects of different areas in the furnace are different due to the fact that the furnace body is used for a long time, and the processing effects of the same batch of metal workpieces are different to a certain extent.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a reaction device for providing space and heating environment so as to reduce heat dissipation; the reaction device is sealed and the opening process is mechanized through the lifting device, the labor intensity of operators is reduced, the loss caused by equipment collision is reduced in the sealing process, the workpiece is driven to rotate through the rotating device, so that the workpiece can be uniformly heated, nitrogen inside the device is driven to flow, the nitrogen is uniformly distributed, a pipeline communicated with the outside in the reaction device is cooled through the cooling device, the damage to external equipment caused by heat following the pipeline is prevented, and the protection performance and the practicability of the device are improved.
The utility model relates to a vacuum nitriding tempering furnace, which comprises a reaction device, a lifting device, a rotating device and a cooling device, wherein the lifting device is arranged on the reaction device; space and heating environment are provided through the reaction device so as to reduce heat dissipation; the reaction device is sealed and the opening process is mechanized through the lifting device, the labor intensity of operators is reduced, the loss caused by equipment collision is reduced in the sealing process, the workpiece is driven to rotate through the rotating device, so that the workpiece can be uniformly heated, nitrogen inside the device is driven to flow, the nitrogen is uniformly distributed, a pipeline communicated with the outside in the reaction device is cooled through the cooling device, the damage to external equipment caused by heat following the pipeline is prevented, and the protection performance and the practicability of the device are improved.
Preferably, the reaction device comprises a heat-insulating shell, heating wires, a reaction tank and a fixed groove, wherein a plurality of groups of heating wires are arranged in the heat-insulating shell, the upper end surface of the heat-insulating shell is provided with the fixed groove, the reaction tank is lapped inside the heat-insulating shell through the fixed groove, and the reaction tank is not in direct contact with the heating wires; the heat dissipation in the heating process is reduced through the heat preservation shell, the inside of the heat preservation shell is heated through the heating wire, the position of the reaction tank is fixed through the fixed slot, the reaction tank is prevented from shaking and colliding with the heating wire, and a stable environment is provided for workpiece reaction through the reaction tank.
Preferably, the lifting device comprises an electric cylinder, a furnace cover, a PLC controller and a sealing cover, wherein the electric cylinder is arranged on the right end face of the heat-preserving shell, the furnace cover is connected to the moving end of the electric cylinder, the sealing cover is arranged on the lower end face of the furnace cover, the sealing cover can enter the reaction tank to seal the upper part of the reaction tank, and the PLC controller is arranged on the front end face of the heat-preserving shell; the PLC is used for controlling the switch of all electric appliances of the equipment in a centralized manner, the inside of the reaction tank is sealed through the sealing cover, so that the temperature inside the reaction tank is kept uniformly changed, the influence of the external environment on the workpiece in the reaction tank is reduced, the electric cylinder is controlled to lift to drive the furnace cover to move up and down, and therefore the heat-insulating shell is automatically sealed and opened, and the labor intensity of operators is reduced.
Preferably, the rotating device comprises a speed reducer, a motor, a rotating shaft and a bracket, the speed reducer is arranged on the upper end face of the furnace cover, the motor is arranged on the speed reducer, the output end of the speed reducer penetrates through the upper end face of the furnace cover to extend to the lower side of the furnace cover to be connected with the rotating shaft, and a plurality of groups of bracket are arranged on the rotating shaft; the motor is started to transmit power to the rotating shaft through the speed reducer to drive the rotating shaft to rotate, so that the support bracket and the workpiece on the support bracket are driven to rotate, the workpiece is heated uniformly in the heating process, nitrogen in the reaction tank is driven to flow, the nitrogen is distributed uniformly, and the nitriding effect of the workpiece is improved.
Preferably, the cooling device comprises a solution tank, a vacuum machine, a first pipeline, a first air valve, a second pipeline and a second air valve, wherein the solution tank and the vacuum machine are arranged on the upper end face of the furnace cover, cooling liquid is filled in the solution tank, the first pipeline is connected to the input end of the vacuum machine, passes through the furnace cover and the sealing cover to extend to the lower side of the sealing cover after passing through the side face wall of the solution tank to enter the solution tank, the first pipeline is arranged on the left side part of the solution tank, the second pipeline passes through the solution tank from the upper side of the solution tank and extends to the lower side of the sealing cover through the furnace cover and the sealing cover, the second air valve is arranged on the upper part of the second pipeline, and the second pipeline is connected with an external nitrogen source; the first pipeline and the second pipeline are sealed through the first air valve and the second air valve, hot air flows out in the heating process is prevented, the vacuum state in the reaction tank is kept, the air in the reaction tank is pumped out through the vacuum machine matched with the first pipeline, the negative pressure vacuum state is kept in the reaction tank, the second pipeline and the first pipeline are cooled through the heat dissipation liquid in the solution tank, damage to the connected objects caused by heat transferred by the first pipeline and the second pipeline is reduced, and the protection performance of the device is improved.
Preferably, a temperature sensor is arranged on the inner side surface of the solution tank; the temperature sensor monitors the temperature of the liquid in the solution tank, and transmits data to the PLC for display, so that operators can know the temperature in the solution tank conveniently, the liquid level in the solution tank is prevented from being reduced, the heat dissipation capacity is prevented from being reduced, and the practicability of the device is improved.
Preferably, the rotating shaft and the bracket are made of metal subjected to nitriding treatment; the rotating shaft and the support bracket are nitrided in advance, so that the self strength of the rotating shaft and the support bracket is increased, the service life of the device is prolonged, and the practicability of the device is improved
Compared with the prior art, the utility model has the beneficial effects that: space and heating environment are provided through the reaction device so as to reduce heat dissipation; the reaction device is sealed and the opening process is mechanized through the lifting device, the labor intensity of operators is reduced, the loss caused by equipment collision is reduced in the sealing process, the workpiece is driven to rotate through the rotating device, so that the workpiece can be uniformly heated, nitrogen inside the device is driven to flow, the nitrogen is uniformly distributed, a pipeline communicated with the outside in the reaction device is cooled through the cooling device, the damage to external equipment caused by heat following the pipeline is prevented, and the protection performance and the practicability of the device are improved.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
FIG. 2 is a schematic elevational view of the present utility model;
FIG. 3 is a schematic cross-sectional structure of a reaction apparatus;
FIG. 4 is a schematic view of a partial enlarged structure of the cooling device;
the reference numerals in the drawings: 1. a thermal insulation housing; 2. a heating wire; 3. a reaction tank; 4. a fixing groove; 5. an electric cylinder; 6. a furnace cover; 7. a PLC controller; 8. sealing cover; 9. a speed reducer; 10. a motor; 11. a rotating shaft; 12. a support bracket; 13. a solution tank; 14. a vacuum machine; 15. a first pipeline; 16. a first air valve; 17. a second pipeline; 18. a second air valve; 19. a temperature sensor.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. This utility model may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example 1
The lifting device as shown in fig. 1, 2, 3 and 4 is installed on the reaction device, and the rotation device is installed on the lifting device;
firstly placing a workpiece in a support bracket 12, controlling an electric cylinder 5 to shrink so that a furnace cover 6 descends to seal a heat-insulating shell 1, simultaneously sealing a sealing cover 8 to seal a reaction tank 3, starting a vacuum machine 14 to vacuumize the interior of the reaction tank 3 through a first pipeline 15, starting a heating wire 2 to heat the interior of the reaction tank 3, starting a second air valve 18 to flush nitrogen into the interior of the reaction tank 3, and starting a motor 10 to transmit power to a rotating shaft 11 through a speed reducer 9 to drive the rotating shaft 11 to rotate so as to drive the support bracket 12 and the workpiece on the support bracket 12 to rotate; after the nitriding treatment is finished, the first air valve 16 and the second air valve 18 are closed, and the heating temperature of the heating wire 2 is controlled to be slowly reduced through the PLC 7;
the reaction device comprises a heat-preserving shell 1, heating wires 2, a reaction tank 3 and a fixed groove 4, wherein a plurality of groups of heating wires 2 are arranged in the heat-preserving shell 1, the fixed groove 4 is formed in the upper end face of the heat-preserving shell 1, the reaction tank 3 is arranged in the heat-preserving shell 1 through the fixed groove 4, and the reaction tank 3 is not in direct contact with the heating wires 2;
the lifting device comprises an electric cylinder 5, a furnace cover 6, a PLC controller 7 and a sealing cover 8, wherein the electric cylinder 5 is arranged on the right end face of the heat preservation shell 1, the furnace cover 6 is connected to the moving end of the electric cylinder 5, the sealing cover 8 is arranged on the lower end face of the furnace cover 6, the sealing cover 8 can enter the reaction tank 3 to seal the upper part of the reaction tank 3, and the PLC controller 7 is arranged on the front end face of the heat preservation shell 1;
the rotating device comprises a speed reducer 9, a motor 10, a rotating shaft 11 and a supporting bracket 12, the speed reducer 9 is arranged on the upper end face of the furnace cover 6, the motor 10 is arranged on the speed reducer 9, the output end of the speed reducer 9 penetrates through the upper end face of the furnace cover 6 to extend to the lower side of the furnace cover 6 to be connected with the rotating shaft 11, and a plurality of groups of supporting brackets 12 are arranged on the rotating shaft 11;
space and heating environment are provided through the reaction device so as to reduce heat dissipation; the reaction device is sealed and the opening process is mechanized through the lifting device, so that the labor intensity of operators is reduced, the loss caused by equipment collision is reduced in the sealing process, the workpiece is driven to rotate through the rotating device, the workpiece can be uniformly heated, nitrogen inside the device is driven to flow, and the nitrogen is uniformly distributed.
Example 2
The improvement on the basis of the first embodiment comprises a cooling device, wherein the cooling device is arranged on the lifting device, and a temperature sensor 19 is arranged on the cooling device;
the cooling device is used for cooling the pipeline which is communicated with the outside in the reaction device, so that the damage of heat to external equipment caused by the heat following the pipeline is prevented, and the protection and the practicability of the device are improved;
the first pipeline 15 and the second pipeline 17 are sealed through the first air valve 16 and the second air valve 18, hot air is prevented from flowing out in the heating process, the vacuum state in the reaction tank 3 is kept, the vacuum machine 14 is matched with the first pipeline 15 to pump out the air in the reaction tank 3, the negative pressure vacuum state is kept in the reaction tank 3, the second pipeline 17 and the first pipeline 15 are cooled through the heat dissipation liquid in the solution tank 13, the damage to the connected objects caused by the heat transferred by the first pipeline 15 and the second pipeline 17 is reduced, and the protection performance of the device is improved;
the cooling device comprises a solution tank 13, a vacuum machine 14, a first pipeline 15, a first air valve 16, a second pipeline 17 and a second air valve 18, wherein the solution tank 13 and the vacuum machine 14 are arranged on the upper end face of the furnace cover 6, cooling liquid is filled in the solution tank 13, the first pipeline 15 is connected to the input end of the vacuum machine 14, the first pipeline 15 penetrates through the side face wall of the solution tank 13, enters the solution tank 13 and then penetrates through the furnace cover 6 and the sealing cover 8 to extend to the lower side of the sealing cover 8, the first pipeline 15 is arranged on the left side part of the solution tank 13, the second pipeline 17 penetrates through the solution tank 13 from the upper side of the solution tank 13 and penetrates through the furnace cover 6 and the sealing cover 8 to extend to the lower side of the sealing cover 8, the second air valve 18 is arranged on the upper part of the second pipeline 17, and the second pipeline 17 is connected with an external nitrogen source.
As shown in fig. 1 to 4, in the vacuum nitriding tempering furnace of the present utility model, when in operation, a workpiece is firstly placed in a support bracket 12, then an electric cylinder 5 is controlled to shrink so that a furnace cover 6 descends to seal a heat insulation shell 1, a sealing cover 8 seals a reaction tank 3, then a vacuum machine 14 is started to vacuumize the interior of the reaction tank 3 through a first pipeline 15, then a heating wire 2 is started to heat the interior of the reaction tank 3, a second air valve 18 is started to flush nitrogen into the interior of the reaction tank 3, and meanwhile, a motor 10 is started to transmit power to a rotating shaft 11 through a speed reducer 9 to drive the rotating shaft 11 to rotate, so that the support bracket 12 and the workpiece on the support bracket 12 are driven to rotate; after the nitriding treatment is finished, the first air valve 16 and the second air valve 18 are closed, and the heating temperature of the heating wire 2 is controlled to be slowly reduced through the PLC 7.
The electric cylinder 5, the vacuum machine 14, the speed reducer 9, the motor 10, the PLC controller 7, the heating wire 2, the second air valve 18, the first air valve 16 and the temperature sensor 19 of the vacuum nitriding tempering furnace are purchased in the market, and a person skilled in the art only needs to install and operate according to the attached using instruction, and the creative labor of the person skilled in the art is not required.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (6)
1. The vacuum nitriding tempering furnace is characterized by comprising a reaction device, a lifting device, a rotating device and a cooling device, wherein the lifting device is arranged on the reaction device; the rotating device comprises a speed reducer (9), a motor (10), a rotating shaft (11) and a supporting bracket (12), the speed reducer (9) is arranged on the upper end face of the furnace cover (6), the motor (10) is arranged on the speed reducer (9), the output end of the speed reducer (9) penetrates through the upper end face of the furnace cover (6) to extend to the lower side of the furnace cover (6) to be connected with the rotating shaft (11), and a plurality of groups of supporting brackets (12) are arranged on the rotating shaft (11).
2. The vacuum nitriding tempering furnace as set forth in claim 1, wherein the reaction device comprises a heat-insulating shell (1), heating wires (2), a reaction tank (3) and a fixing groove (4), wherein a plurality of groups of heating wires (2) are arranged in the heat-insulating shell (1), the fixing groove (4) is formed in the upper end face of the heat-insulating shell (1), the reaction tank (3) is arranged inside the heat-insulating shell (1) through the fixing groove (4), and the reaction tank (3) is not in direct contact with the heating wires (2).
3. The vacuum nitriding tempering furnace as set forth in claim 2, wherein the lifting device comprises an electric cylinder (5), a furnace cover (6), a PLC controller (7) and a sealing cover (8), the electric cylinder (5) is installed on the right end face of the heat-preserving shell (1), the furnace cover (6) is connected to the moving end of the electric cylinder (5), the sealing cover (8) is installed on the lower end face of the furnace cover (6), the sealing cover (8) can enter the reaction tank (3) to seal the upper portion of the reaction tank (3), and the PLC controller (7) is installed on the front end face of the heat-preserving shell (1).
4. A vacuum nitriding tempering furnace as claimed in claim 1, wherein the cooling device comprises a solution tank (13), a vacuum machine (14), a first pipeline (15), a first air valve (16), a second pipeline (17) and a second air valve (18), the solution tank (13) and the vacuum machine (14) are arranged on the upper end face of the furnace cover (6), cooling liquid is arranged in the solution tank (13), the first pipeline (15) is connected to the input end of the vacuum machine (14), the first pipeline (15) passes through the side face wall of the solution tank (13) to enter the solution tank (13) and then passes through the furnace cover (6) and the sealing cover (8) to extend to the lower side of the sealing cover (8), the first pipeline (15) is provided with the first air valve (16) on the left side part of the solution tank (13), the second pipeline (17) passes through the inside the solution tank (13) and passes through the furnace cover (6) and the sealing cover (8) to extend to the lower side of the sealing cover (8), the second pipeline (18) is arranged on the upper part of the sealing cover (17), and the second pipeline (17) is connected with a nitrogen gas valve.
5. A vacuum nitriding tempering furnace as set forth in claim 4, wherein a temperature sensor (19) is installed on the inner side of the solution tank (13).
6. A vacuum nitriding tempering furnace as set forth in claim 5, wherein the rotary shaft (11) and the support bracket (12) are made of nitrided metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321867618.9U CN220520592U (en) | 2023-07-17 | 2023-07-17 | Vacuum nitriding tempering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321867618.9U CN220520592U (en) | 2023-07-17 | 2023-07-17 | Vacuum nitriding tempering furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220520592U true CN220520592U (en) | 2024-02-23 |
Family
ID=89927180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321867618.9U Active CN220520592U (en) | 2023-07-17 | 2023-07-17 | Vacuum nitriding tempering furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220520592U (en) |
-
2023
- 2023-07-17 CN CN202321867618.9U patent/CN220520592U/en active Active
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