CN221259500U - External heating type carbon tube furnace - Google Patents
External heating type carbon tube furnace Download PDFInfo
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- CN221259500U CN221259500U CN202323160947.2U CN202323160947U CN221259500U CN 221259500 U CN221259500 U CN 221259500U CN 202323160947 U CN202323160947 U CN 202323160947U CN 221259500 U CN221259500 U CN 221259500U
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- tube furnace
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 137
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 106
- 238000010438 heat treatment Methods 0.000 title claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 12
- 229910002804 graphite Inorganic materials 0.000 claims description 12
- 239000010439 graphite Substances 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 238000001816 cooling Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
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Abstract
The utility model relates to the technical field, in particular to an external heating type carbon tube furnace, which comprises a shell, wherein a material taking device is arranged below the inside of the shell; the top end of the material taking device is provided with a fixing device for pushing the fixing device to move; the upper part of the inner part of the shell is fixedly connected with a carbon tube furnace body; the upper part of the carbon tube furnace body is fixedly connected with the furnace cover of the carbon tube furnace; the inner wall of the lower part of the carbon tube furnace body is fixedly connected with the inner layer of the carbon tube furnace. Through the cooperation between extracting device, carbon tube stove inlayer and the fixing device, fixing device drives the article and goes on, pushes away the article in the less hollow cylinder of carbon tube stove inlayer, extracting device can be isolated less hollow cylinder and great hollow cylinder this moment to carry out the heat to isolated, open carbon tube stove bell this moment, can reduce the heat loss, realize simultaneously under the prerequisite of not cooling down to the furnace body, take out the furnace body with the article, need not follow the new heating up, saved the resource.
Description
Technical Field
The utility model relates to the technical field of carbon tube furnaces, in particular to an external heating type carbon tube furnace.
Background
The carbon tube furnace, also called carbon tube resistance furnace, is mainly used as sintering equipment for industrial ceramics, structural ceramics, metal ceramics and hard alloy industries under the conditions of atmosphere and pressure, and uses high-quality graphite as heating element, and its rated temperature is 2000 deg.C. In the case of special requirements, it is allowed to operate in a protective atmosphere for a short time to 2400-2500 ℃. The external heating type carbon tube furnace is used for heating metal, refractory compound, ceramic material and the like in vacuum or protective atmosphere, and the external heating type carbon tube furnace is characterized in that a heating component is arranged on the outer side of an inner layer, and heat is transferred by contacting heat radiation.
For example, although the above-mentioned document has the advantages of simple operation and convenient maintenance and repair, the carbon tube furnace in the above-mentioned document is used to heat the articles by placing the articles to be heated in the crucible, but after the heating is completed, the articles are located in the crucible, the user needs to cool the internal articles first and take the articles out by stretching the hands into the furnace body, and in this way, when the next article is heated, the temperature needs to be raised again, thereby wasting resources and the articles cannot be taken out from the furnace body without cooling the furnace body.
Disclosure of utility model
The utility model aims to solve the problems that after heating, the object is located in a crucible, a user is required to cool the internal object and extend a hand into a furnace body to take materials, and when the next object is heated, the temperature is required to be raised again, so that the resource is wasted, and the object cannot be taken out of the furnace body without cooling the furnace body.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
An external heating type carbon tube furnace is designed, and comprises a shell, wherein a material taking device is arranged below the inside of the shell; the top end of the material taking device is provided with a fixing device for pushing the fixing device to move; the upper part of the inner part of the shell is fixedly connected with a carbon tube furnace body; the upper part of the carbon tube furnace body is fixedly connected with the furnace cover of the carbon tube furnace; the inner wall of the lower part of the carbon tube furnace body is fixedly connected with the inner layer of the carbon tube furnace, a cavity is formed between the inner wall of the carbon tube furnace body and the outer wall of the inner layer of the carbon tube furnace, and the cavity is used for placing a graphite ring electrode and a graphite heating body.
Preferably, the material taking device comprises a motor, a straight gear, a rack, an inclined plate, an L-shaped supporting plate and a placing plate; the outer wall of the motor is fixedly connected with the shell through a bracket; the output end of the motor is fixedly connected with a spur gear for driving the spur gear to rotate; the upper end and the lower end of the straight gear are connected with the two racks in a meshed manner and are used for enabling the two racks to move relatively; one ends of the two racks, which are far away from the spur gear, are fixedly connected with the sloping plate respectively; the cylindrical pins are fixedly connected below the two L-shaped supporting plates, the outer walls of the cylindrical pins are in sliding connection with the two sloping plates, and the two sloping plates move towards the middle, so that the two cylindrical pins drive the two L-shaped supporting plates to move upwards along the contact surface; the top ends of the two L-shaped supporting plates extend into the inner cavity of the carbon tube furnace through openings at corresponding positions of the carbon tube furnace body and the inner layer of the carbon tube furnace and are in sliding connection with the hole wall; the top ends of the two L-shaped supporting plates are fixedly connected with the lower part of the placing plate.
Preferably, a T-shaped sliding block is fixedly connected below the inclined plate, and the bottom end of the T-shaped sliding block is in sliding connection with the shell.
Preferably, the fixing device comprises a T-shaped pull rod and a fixing plate; the T-shaped pull rod consists of a penetrating rod and a limiting rod, the penetrating rod is vertically connected with the limiting rod, is parallel to the placing plate and is in sliding connection with the placing plate; one end of the penetrating rod, which is far away from the limiting rod, is fixedly connected with a fixed plate, so that the T-shaped pull rod can pull the fixed plate to move; and a spring is fixedly connected between the fixing plate and the placing plate.
Preferably, the balancing device; the balancing device is used for balancing the air pressure inside and outside the inner layer of the carbon tube furnace.
Preferably, the balancing device comprises a gas communicating pipe and a one-way valve, wherein two ends of the gas communicating pipe are respectively communicated with the outside and the inner layer of the carbon tube furnace; and a one-way valve is arranged in the pipeline of the gas communicating pipe and used for controlling the external gas to flow into the inner cavity of the carbon tube furnace.
Preferably, the upper side and the lower side of the inner layer of the carbon tube furnace are fixedly connected with one graphite ring electrode respectively, and a plurality of graphite heating bodies are uniformly distributed between the two graphite ring electrodes.
Preferably, the method further comprises: a temperature sensor; the temperature sensor is positioned on the inner wall of the inner layer of the carbon tube furnace and is used for detecting the temperature of the inner cavity of the carbon tube furnace.
Preferably, the method further comprises: a control box; the control box is fixedly connected with the shell, and is respectively and electrically connected with the two graphite ring electrodes and the temperature sensor through wires and used for providing power for the two graphite ring electrodes and the temperature sensor.
Preferably, the method further comprises: vacuumizing the tube; one end of the vacuumizing tube is communicated with the inner layer of the carbon tube furnace, and the other end of the vacuumizing tube extends to the outside and is used for externally connecting vacuumizing equipment.
The external heating type carbon tube furnace provided by the utility model has the beneficial effects that: through the cooperation between extracting device, carbon tube stove inlayer and the fixing device, extracting device can promote fixing device at the in-process of operation and upwards remove, and fixing device drives article and goes on, pushes away in the less hollow cylinder of carbon tube stove inlayer with article, extracting device can be isolated less hollow cylinder and great hollow cylinder this moment to carry out the heat to isolated, open carbon tube stove bell this moment, can reduce thermal loss, realize simultaneously under the prerequisite of not cooling down the furnace body, take out the furnace body with article, need not follow newly and heat up, the resource is saved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic front plan view of the interconnect structure of FIG. 1;
FIG. 3 is a top plan view of a portion of the connection structure of FIG. 2;
FIG. 4 is an enlarged perspective view of a portion of the connecting structure of FIG. 2;
fig. 5 is a schematic diagram of a connection structure at a in fig. 2.
In the figure: 1. the device comprises a shell, 2, a carbon tube furnace body, 3, a material taking device, 301, a motor, 302, a spur gear, 303, a rack, 304, an inclined plate, 305, an L-shaped supporting plate, 306, a placing plate, 307, a second rack, 308, a second inclined plate, 309, a second L-shaped supporting plate, 4, a fixing device, 401, a T-shaped pull rod, 402, a spring, 403, a fixing plate, 5, a balancing device, 501, a gas communicating pipe, 502, a one-way valve, 6, a carbon tube furnace cover, 7, a carbon tube furnace inner layer, 8, a graphite ring electrode, 9, a graphite heating element, 10, a control box, 11, a temperature sensor, 12, a vacuumizing pipe, 13 and a T-shaped sliding block.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
this embodiment:
Referring to fig. 1-5, in this embodiment: the utility model provides an external heating type carbon tube furnace, includes shell 1, is provided with extracting device 3 below the inside of shell 1, extracting device 3 is used for taking out the inside heating article under the prerequisite of not cooling to inside, avoids the heat to run off; the top end of the material taking device 3 is provided with a fixing device 4 for pushing the fixing device 4 to move; the upper part of the inner part of the shell 1 is fixedly connected with a carbon tube furnace body 2; the upper part of the carbon tube furnace body 2 is fixedly connected with a carbon tube furnace cover 6, and the carbon tube furnace cover 6 can be in a disc shape, a semicircular shape and the like; the inner wall below the carbon tube furnace body 2 is fixedly connected with the carbon tube furnace inner layer 7, a cavity is formed between the inner wall of the carbon tube furnace body 2 and the outer wall of the carbon tube furnace inner layer 7, the carbon tube furnace inner layer 7 is composed of two hollow cylinders with different sizes, the top end of the smaller hollow cylinder is fixedly connected with the top end of the larger hollow cylinder, and the cavity is used for placing the graphite ring electrode 8 and the graphite heating body 9.
As an implementation mode of this embodiment, through the cooperation between extracting device, carbon tube stove inlayer and the fixing device, extracting device can promote fixing device at the in-process of operation and upwards remove, fixing device drives the article and goes on, push away the article to the inside less hollow cylinder of carbon tube stove inlayer in, extracting device can keep apart less hollow cylinder and great hollow cylinder this moment, thereby keep apart the heat, open carbon tube stove bell this moment, can reduce the heat loss, realize simultaneously under the prerequisite of not cooling down the furnace body, take out the furnace body with the article, need not follow newly and heat up, resources are saved.
In this embodiment, the material taking device 3 includes a motor 301, a spur gear 302, a rack, an inclined plate, an L-shaped support plate, and a placement plate 306; the outer wall of the motor 301 is fixedly connected with the shell 1 through a bracket, the model of the motor 301 is selected according to actual requirements, and the use conditions are met; the output end of the motor 301 is fixedly connected with a spur gear 302 for driving the spur gear 302 to rotate; the upper end and the lower end of the straight gear 302 are in meshed connection with two racks, wherein the lower rack is a first rack 303, the upper rack is a second rack 307, the racks are used for enabling the two racks to move relatively, and the first rack 303 and the second rack 307 move synchronously and have opposite moving directions; one end of the two racks, which is far away from the spur gear 302, is fixedly connected with the sloping plate respectively, the first rack 303 is fixedly connected with the first sloping plate 304, and the second rack 307 is fixedly connected with the second sloping plate 308; the cylindrical pins are fixedly connected below the two L-shaped supporting plates, the outer walls of the cylindrical pins are in sliding connection with the inclined plates, the L-shaped supporting plates are composed of a first rod and a second rod, the first rod is vertically connected with the second rod, the two inclined plates move towards the middle, the two cylindrical pins drive the two L-shaped supporting plates to move upwards along the contact surface, when the first inclined plate 304 moves towards the middle, the first L-shaped supporting plate 305 moves upwards, and when the second inclined plate 308 moves towards the middle, the second L-shaped supporting plate 309 moves upwards; the top ends of the two L-shaped supporting plates extend into the inner cavity of the carbon tube furnace through openings at corresponding positions of the carbon tube furnace body 2 and the inner layer 7 of the carbon tube furnace and are in sliding connection with the hole wall; the top ends of the two L-shaped supporting plates are fixedly connected with the lower part of the placing plate 306, and when the two L-shaped supporting plates move upwards, the placing plate 306 is pushed to move.
In this embodiment, a T-shaped slider 13 is fixedly connected below the inclined plate 304, the T-shaped slider 13 is composed of a first plate and a second plate, wherein the middle of the top end of the first plate is vertically connected with the bottom end of the second plate, the bottom end of the T-shaped slider 13 is slidably connected with the housing 1, a chute is formed below the inner wall of the housing 1, and the T-shaped slider 13 moves along the chute.
In this embodiment, the fixing device 4 includes a T-shaped tie bar 401 and a fixing plate 403; the T-shaped pull rod 401 is composed of a penetrating rod and a limiting rod, the penetrating rod is vertically connected with the limiting rod, the penetrating rod is parallel to the placing plate 306 and is in sliding connection with the placing plate 306, and the placing plate 306 is used for limiting the moving direction of the T-shaped pull rod 401; one end of the penetrating rod, which is far away from the limiting rod, is fixedly connected with the fixing plate 403, so that the T-shaped pull rod 401 can pull the fixing plate 403 to move; a spring 402 is fixedly connected between the fixing plate 403 and the placing plate 306, and the elastic coefficient of the spring 402 is 10-30N/cm.
As an implementation mode of the embodiment, in the process of moving the article, because the shapes of the articles are different, when some irregular articles are moved, the articles can fall off the placement plate, and the problem that the articles cannot be fixed exists.
In this embodiment, further comprising: a balancing device 5; the balancing device 5 is used for balancing the air pressure inside the inner layer 7 of the carbon tube furnace.
In the present embodiment, the balance device 5 includes a gas communication tube 501 and a check valve 502; both ends of the gas communication tube 501 are respectively communicated with the outside and the carbon tube furnace inner layer 7; a check valve 502 is provided in the tube of the gas communication tube 501 for controlling the flow of external gas into the inner chamber of the carbon tube furnace, and a sealing plug is installed at one end of the gas communication tube 501 to prevent the external gas from entering when the vacuum pumping is performed.
As an implementation mode of the embodiment, when the furnace cover is opened, a great amount of air rapidly enters the inner layer due to lower air pressure in vacuum and higher external air pressure, so that the objects can be extruded, and the pressure balance can not be performed before the furnace cover is opened, so that the objects are easy to deform.
In this embodiment, the upper and lower sides of the inner layer 7 of the carbon tube furnace are fixedly connected with one graphite ring electrode 8 respectively, a plurality of graphite heating bodies 9 are uniformly distributed between the two graphite ring electrodes 8, and after the graphite ring electrodes 8 and the graphite heating bodies 9 are electrified, heat is generated by using the resistance inside the graphite heating bodies 9 and transferred to the inner layer 7 of the carbon tube furnace.
In this embodiment, further comprising: the temperature sensor 11, temperature sensor 11 is located on the inner wall of carbon tube stove inlayer 7 for detect the temperature of carbon tube stove inner chamber, temperature sensor 11's model is selected according to actual need, satisfies the service condition can.
In this embodiment, further comprising: the control box 10, the control box 10 is fixedly connected with the shell 1, and the control box 10 is electrically connected with the two graphite ring electrodes 8 and the temperature sensor 11 respectively through wires and is used for providing power for the two graphite ring electrodes 8 and the temperature sensor 11, and the control box 10 is of the prior art and is not described in detail herein.
In this embodiment, further comprising: an evacuation tube 12; one end of the vacuumizing tube 12 is communicated with the carbon tube furnace inner layer 7, the other end of the vacuumizing tube extends to the outside for externally connecting vacuumizing equipment, a sealing plug is arranged on the vacuumizing tube 12, and when the vacuumizing tube 12 is not used, the vacuumizing tube is plugged through the sealing plug.
Working principle:
When the external heating type carbon tube furnace is used, firstly, the furnace cover 6 of the carbon tube furnace is opened, the T-shaped pull rod 401 is pulled outwards, the T-shaped pull rod 401 drives the fixing plate 403 to move outwards, the fixing plate 403 is matched with the placing plate 306 to compress the spring 402, at the moment, an article is placed on the placing plate 306, the T-shaped pull rod 401 is loosened, the spring 402 rebounds, thereby pushing the fixing plate 403 to move towards the middle, the four fixing plates 403 are matched with each other to fix various shaped articles, the articles are prevented from falling from the placing plate 306 in the moving process, the fixing of the articles is realized, the furnace cover 6 of the carbon tube furnace is covered, then the vacuumizing equipment is communicated with the vacuumizing tube 12, the inner cavity of the carbon tube furnace is vacuumized, then the graphite ring electrode 8 is electrified through the control box 10, the graphite ring electrode 8 can electrify the graphite heating element 9, the graphite heating element 9 heats by utilizing the internal resistance value, and transfer the heat to the inner cavity of the carbon tube furnace, the heat can heat the objects, the heating function of the external heating type carbon tube furnace is realized, after the heating is finished, the motor 301 is started, the output end of the motor 301 drives the spur gear 302 to rotate clockwise, the spur gear 302 drives the first inclined plate 304 to move leftwards, meanwhile, the spur gear 302 drives the second inclined plate 308 to move rightwards, the first inclined plate 304 and the second inclined plate 308 simultaneously move towards the middle, the first inclined plate 304 and the second inclined plate 308 respectively drive the first L-shaped supporting plate 305 and the second L-shaped supporting plate 309 to move upwards, the first L-shaped supporting plate 305 and the second L-shaped supporting plate 309 push the placing plate 306 to move upwards, and the placing plate 306 is inserted into the smaller hollow cylinder in the inner layer 7 of the carbon tube furnace because the diameter of the placing plate 306 is slightly smaller than the inner diameter of the smaller hollow cylinder in the inner layer 7 of the carbon tube furnace, thereby with heat isolation in the inner chamber, open carbon tube stove bell 6 this moment, thereby reduced the heat loss, realize simultaneously not carrying out under the prerequisite of cooling to the furnace body, take out the furnace body with the article, need not follow the new heating up, resources are saved, subsequently cool off the article, and take out the article, before opening carbon tube stove bell 6, extract the sealing plug on the gas communicating pipe 501 earlier, make external gas flow in the inner chamber of carbon tube stove, improve the inside atmospheric pressure of carbon tube stove inlayer 7, thereby avoid the air to get into in a large number and extrude the article, prevented that the article from producing the deformation, accomplish the use of this device.
While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.
Claims (10)
1. An external heating type carbon tube furnace, which comprises a shell (1), and is characterized in that: a material taking device (3) is arranged below the inside of the shell (1); the top end of the material taking device (3) is provided with a fixing device (4) for pushing the fixing device (4) to move; the upper part of the inner part of the shell (1) is fixedly connected with a carbon tube furnace body (2); the upper part of the carbon tube furnace body (2) is fixedly connected with a carbon tube furnace cover (6); the inner wall below the carbon tube furnace body (2) is fixedly connected with the carbon tube furnace inner layer (7), a cavity is formed between the inner wall of the carbon tube furnace body (2) and the outer wall of the carbon tube furnace inner layer (7), and the cavity is used for placing a graphite ring electrode (8) and a graphite heating body (9).
2. The external heating type carbon tube furnace according to claim 1, wherein: the material taking device (3) comprises a motor (301), a spur gear (302), a rack, an inclined plate, an L-shaped supporting plate and a placing plate (306); the outer wall of the motor (301) is fixedly connected with the shell (1) through a bracket; the output end of the motor (301) is fixedly connected with a spur gear (302) for driving the spur gear (302) to rotate; the upper end and the lower end of the straight gear (302) are connected with two racks in a meshed manner and are used for enabling the two racks to move relatively; one ends of the two racks, which are far away from the spur gears (302), are fixedly connected with the sloping plates respectively; the cylindrical pins are fixedly connected below the two L-shaped supporting plates, the outer walls of the cylindrical pins are in sliding connection with the two sloping plates, and the two sloping plates move towards the middle, so that the two cylindrical pins drive the two L-shaped supporting plates to move upwards along the contact surface; the top ends of the two L-shaped supporting plates extend into the inner cavity of the carbon tube furnace through openings at corresponding positions of the carbon tube furnace body (2) and the inner layer (7) of the carbon tube furnace and are in sliding connection with the hole wall; the top ends of the two L-shaped supporting plates are fixedly connected with the lower part of the placing plate (306).
3. The external heating type carbon tube furnace according to claim 2, wherein: the lower part of the sloping plate (304) is fixedly connected with a T-shaped sliding block (13), and the bottom end of the T-shaped sliding block (13) is in sliding connection with the shell (1).
4. The external heating type carbon tube furnace according to claim 2, wherein: the fixing device (4) comprises a T-shaped pull rod (401) and a fixing plate (403); the T-shaped pull rod (401) consists of a penetrating rod and a limiting rod, wherein the penetrating rod is vertically connected with the limiting rod, is parallel to the placing plate (306) and is in sliding connection with the placing plate (306); one end of the penetrating rod, which is far away from the limiting rod, is fixedly connected with a fixed plate (403), so that the T-shaped pull rod (401) can pull the fixed plate (403) to move; a spring (402) is fixedly connected between the fixing plate (403) and the placing plate (306).
5. The external heating type carbon tube furnace according to claim 1, wherein: further comprises: a balancing device (5); the balancing device (5) is used for balancing the air pressure inside and outside the carbon tube furnace inner layer (7).
6. The external heating type carbon tube furnace according to claim 5, wherein: the balance device (5) comprises a gas communicating pipe (501) and a one-way valve (502), wherein two ends of the gas communicating pipe (501) are respectively communicated with the outside and the carbon tube furnace inner layer (7); a one-way valve (502) is arranged in the pipeline of the gas communicating pipe (501) and is used for controlling the external gas to flow into the inner cavity of the carbon tube furnace.
7. The external heating type carbon tube furnace according to claim 1, wherein: the upper side and the lower side of the carbon tube furnace inner layer (7) are fixedly connected with one graphite ring electrode (8) respectively, and a plurality of graphite heating bodies (9) are uniformly distributed between the two graphite ring electrodes (8).
8. The external heating type carbon tube furnace according to claim 1, wherein: further comprises: a temperature sensor (11); the temperature sensor (11) is positioned on the inner wall of the inner layer (7) of the carbon tube furnace and is used for detecting the temperature of the inner cavity of the carbon tube furnace.
9. The external heating type carbon tube furnace according to claim 8, wherein: further comprises: a control box (10); the control box (10) is fixedly connected with the shell (1), and the control box (10) is respectively and electrically connected with the two graphite ring electrodes (8) and the temperature sensor (11) through wires and is used for providing power for the two graphite ring electrodes (8) and the temperature sensor (11).
10. The external heating type carbon tube furnace according to claim 1, wherein: further comprises: an evacuation tube (12); one end of the vacuumizing tube (12) is communicated with the carbon tube furnace inner layer (7), and the other end of the vacuumizing tube extends to the outside and is used for externally connecting vacuumizing equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323160947.2U CN221259500U (en) | 2023-11-23 | 2023-11-23 | External heating type carbon tube furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323160947.2U CN221259500U (en) | 2023-11-23 | 2023-11-23 | External heating type carbon tube furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221259500U true CN221259500U (en) | 2024-07-02 |
Family
ID=91631416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323160947.2U Active CN221259500U (en) | 2023-11-23 | 2023-11-23 | External heating type carbon tube furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221259500U (en) |
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2023
- 2023-11-23 CN CN202323160947.2U patent/CN221259500U/en active Active
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