CN217265884U - Automatic cooling type quenching oil pool for heat treatment - Google Patents
Automatic cooling type quenching oil pool for heat treatment Download PDFInfo
- Publication number
- CN217265884U CN217265884U CN202221039507.4U CN202221039507U CN217265884U CN 217265884 U CN217265884 U CN 217265884U CN 202221039507 U CN202221039507 U CN 202221039507U CN 217265884 U CN217265884 U CN 217265884U
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- quenching oil
- cooling
- pipe
- water
- heat
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- 230000000171 quenching effect Effects 0.000 title claims abstract description 97
- 238000001816 cooling Methods 0.000 title claims abstract description 95
- 238000010791 quenching Methods 0.000 title claims abstract description 95
- 238000010438 heat treatment Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 238000001704 evaporation Methods 0.000 claims abstract description 29
- 230000017525 heat dissipation Effects 0.000 claims abstract description 28
- 230000008020 evaporation Effects 0.000 claims abstract description 25
- 239000007921 spray Substances 0.000 claims abstract description 24
- 239000000498 cooling water Substances 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000009833 condensation Methods 0.000 claims description 30
- 230000005494 condensation Effects 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 22
- 238000003860 storage Methods 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 98
- 230000006872 improvement Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The utility model discloses an automatic cooling type quenching oil pool for heat treatment belongs to quenching oil pool technical field, include: quenching oil bath, heat conduction stick, cooling device and oil temperature sensor. The heat conducting rod is arranged in the quenching oil pool, the interior of the heat conducting rod is of a hollow structure, one end of the heat conducting rod is provided with an evaporation end filled with part of water, and the other end of the heat conducting rod extends out of the quenching oil pool to form a heat dissipation end; the cooling device comprises a cooling box, a fan, a water pump and a spray head group, wherein the cooling box surrounds the heat dissipation end, a water inlet of the water pump is communicated with the part of the cooling box, which is internally provided with cooling water, and a water outlet of the water pump is communicated with the spray head group through a connecting pipe; the oil temperature sensor is connected with the quenching oil pool, and the detection end of the oil temperature sensor is arranged in the quenching oil pool; the utility model discloses can accelerate the fluid heat dissipation, ensure that the oil temperature keeps at the suitable temperature.
Description
Technical Field
The utility model relates to the technical field of quenching oil pools, in particular to an automatic cooling type quenching oil pool for heat treatment.
Background
The quenching oil is a process oil and is used as a quenching medium, the cooling capacity of the quenching oil is insufficient within the range of 550-650 ℃, the average cooling speed is only 60-100 ℃/s, but the slow cooling speed is very suitable for quenching within the range of 200-300 ℃. The oil is used for quenching alloy steel and small-section carbon steel, and can obtain satisfactory hardenability and hardenability, prevent cracking and reduce deformation. In order to meet the technological requirements of heat treatment, the quenching oil has the following characteristics: 1. a higher flash point to reduce the risk of fire; 2. lower viscosity to reduce the loss of oil from adhering to the workpiece; 3. is not easy to oxidize and has stable performance so as to slow down aging and prolong the service life.
The quenching oil pool with the cover plate is provided with the CN203546092U publication number, has reasonable design, simple structure and simple and convenient manufacture, can make the maintenance more convenient, can ensure the personal safety of maintainers, occupies small space, and can avoid influencing the normal operation of the oil pool; however, the oil temperature of the quenching oil pool and the oil pool of the quenching oil pool in the prior art rises after the quenching oil pool is used for a period of time, and the quenching effect is influenced, so that the quality of workpieces is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the technical insufficiency, provide an automatic cooling type quenching oil tank for heat treatment, solve among the prior art quenching oil tank use after a period the oil temperature can rise, influence the technical problem of quenching effect.
In order to achieve the technical purpose, the technical scheme of the utility model provides an automatic cooling type quenching oil bath for heat treatment, include:
a quenching oil pool;
the heat conducting rod is arranged in the quenching oil pool, the interior of the heat conducting rod is of a hollow structure, one end of the heat conducting rod is provided with an evaporation end filled with part of water, and the other end of the heat conducting rod extends out of the quenching oil pool to form a heat dissipation end;
the cooling device comprises a cooling box, a fan, a water pump and a spray head group, wherein the cooling box surrounds the heat dissipation end, cooling water is filled in the cooling box, an air inlet and an air outlet are respectively formed in the box wall of the cooling box, the fan is arranged at the air outlet, a water inlet of the water pump is communicated with the part, in which the cooling water is arranged, of the cooling box, a water outlet of the water pump is communicated with the spray head group through a connecting pipe, and the spray head group faces the heat dissipation end;
the oil temperature sensor is connected with the quenching oil pool, the detection end of the oil temperature sensor is arranged in the quenching oil pool, and the oil temperature sensor is electrically connected with the cooling device through the controller.
As the utility model discloses a further improvement, the heat conduction stick includes water storage pipe, evaporating pipe, blast pipe, back flow and condenser pipe, is equipped with water in the water storage pipe and its locates the quenching oil pond bottom of the pool, evaporating pipe one end and water storage pipe intercommunication, the other end upwards extend to with the one end intercommunication of blast pipe, the condenser pipe is located in the cooler bin, and the import of condenser pipe and the other end intercommunication of blast pipe, export and the one end intercommunication of back flow, the other end and the evaporating pipe intercommunication of back flow.
As a further improvement of the utility model, the condensation pipe is a vertically arranged coil pipe.
As a further improvement of the utility model, the shower nozzle group includes a plurality of shower nozzles, and a plurality of shower nozzles are evenly arranged in the top of condenser pipe.
As a further improvement of the utility model, evenly be equipped with a plurality of radiating fin on the tank wall of the part that is equipped with the cooling water in the cooler bin, radiating fin's heat absorption end is located in the cooler bin and is contacted, its heat dissipation end locates outside the cooler bin with the cooling water.
As a further improvement, the air outlet is arranged at the upper side of the cooling box, the spray head group is arranged below the air outlet, and a water retaining grid plate is arranged between the air outlet and the spray head group.
As a further improvement of the utility model, the air inlet is blocked with a filter plate.
As a further improvement of the utility model, the heat conducting rods are more than two groups, and a plurality of heat conducting rods are evenly arranged along the tank wall of the quenching oil tank.
As a further improvement of the utility model, the spray head groups are the same with the heat conducting rods, and the plurality of spray head groups are in one-to-one correspondence with the heat conducting rods and extend to one end outside the quenching oil pool.
As a further improvement of the utility model, the quenching oil pool is also provided with a stirring device which comprises a stirring rod and a motor, the stirring rod is vertically arranged in the quenching oil pool, and one end of the stirring rod is connected with the pool bottom of the quenching oil pool through a bearing, and the other end of the stirring rod is coaxially connected with the central shaft of the motor.
Compared with the prior art, the beneficial effects of the utility model include: the water in the evaporation end of the heat conduction rod is evaporated along with the rise of the oil temperature through the arranged heat conduction rod and the cooling device, steam enters the heat dissipation end of the heat conduction rod through the evaporation end, cooling water is sprayed to the heat dissipation end of the heat conduction rod by utilizing the spray head group, meanwhile, the fan accelerates the air flow circulation in the cooling box, the cooling of the heat dissipation end is realized, the steam in the heat dissipation end is condensed, the heat conduction is accelerated by utilizing the water evaporation and condensation, the heat dissipation of oil liquid is accelerated, and the oil temperature is ensured to be kept at a proper temperature;
the oil temperature sensor is used for detecting the oil temperature of the quenching oil, and when the oil temperature is higher than a set value, the cooling device is started through the sensor, so that the real-time monitoring of the oil temperature and the automatic cooling of the quenching oil are realized.
Drawings
FIG. 1 is a schematic view of an overall front sectional structure of an embodiment of an automatic cooling type quenching oil bath for heat treatment according to the present invention;
FIG. 2 is a schematic view of a cross-sectional structure of a cooling apparatus according to an embodiment of the automatic cooling type quenching oil bath for heat treatment of the present invention in a front view;
FIG. 3 is a schematic view of the overall cross-sectional plan view of an embodiment of the automatic cooling type quenching oil bath for heat treatment according to the present invention;
fig. 4 is a schematic view of a partial internal cross-sectional structure of a heat conducting rod according to an embodiment of the automatic cooling type quenching oil bath for heat treatment of the present invention.
In the figure: 1. a quenching oil pool; 2. a heat conducting rod; 21. a water storage pipe; 22. an evaporation tube; 23. an exhaust pipe; 24. a return pipe; 25. a condenser tube; 3. a cooling device; 31. a cooling tank; 311. an air inlet; 312. an air outlet; 313. a water retaining grid plate; 314. filtering a plate; 32. a fan; 33. a water pump; 331. a connecting pipe; 34. a nozzle group; 35. a heat dissipating fin; 4. an oil temperature sensor; 5. a stirring device; 51. a stirring rod; 52. an electric motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the utility model provides an automatic cooling type quenching oil pool for heat treatment, which comprises: quenching oil bath 1, heat conduction stick 2, cooling device 3 and oil temperature sensor 4.
The heat conducting rod 2 is arranged in the quenching oil pool 1, the interior of the heat conducting rod 2 is of a hollow structure, one end of the heat conducting rod 2 is provided with an evaporation end filled with part of water, and the other end of the heat conducting rod extends out of the quenching oil pool 1 to form a heat dissipation end.
The cooling device 3 includes a cooling box 31, a fan 32, a water pump 33 and a nozzle group 34, the cooling box 31 surrounds the heat dissipation end, cooling water is filled in the cooling box 31, an air inlet 311 and an air outlet 312 are respectively arranged on the wall of the cooling box, the fan 32 is arranged at the air outlet 312, a water inlet of the water pump 33 is communicated with the portion of the cooling box 31 in which the cooling water is arranged, a water outlet of the water pump 33 is communicated with the nozzle group 34 through a connecting pipe 331, and the nozzle group 34 faces the heat dissipation end.
The oil temperature sensor 4 is connected with the quenching oil pool 1, the detection end of the oil temperature sensor is arranged in the quenching oil pool 1, and the oil temperature sensor 4 is electrically connected with the cooling device 3 through a controller.
In the device, a heat conducting rod 2 is arranged in a quenching oil pool 1, the interior of the heat conducting rod 2 is of a hollow structure, after the temperature of quenching oil in the quenching oil pool 1 rises, water in an evaporation end of the heat conducting rod 2 can be evaporated, steam enters a heat dissipation end through the evaporation end, water in a cooling box 31 can be conveyed to a spray head group 34 through a connecting pipe 331 by an arranged water pump 33 and is sprayed to the heat dissipation end of the heat conducting rod 2 through the spray head group 34, so that the heat dissipation cooling of the heat dissipation end of the heat conducting rod 2 is realized, meanwhile, a fan 32 accelerates airflow to enter the cooling box 31 through an air inlet 311, so that a heat medium in the cooling box 31 is discharged through an air outlet 312 to simultaneously take away the sprayed water and the heat of the heat dissipation end, the heat conduction cooling of the quenching oil is realized by the evaporation and condensation of the water in the heat conducting rod 2, the temperature of the quenching oil in the quenching oil pool 1 is detected by an arranged oil temperature sensor 4, and the oil temperature is monitored in real time, and when the oil temperature is higher than the set value, the cooling device 3 is started through the oil temperature sensor 4, so that the quenching oil is automatically cooled.
As shown in fig. 1, a stirring device 5 is further provided on the quenching oil bath 1, the stirring device 5 includes a stirring rod 51 and a motor 52, the stirring rod 51 is vertically disposed in the quenching oil bath 1, and one end of the stirring rod 51 is connected to the bottom of the quenching oil bath 1 through a bearing, and the other end is coaxially connected to a central shaft of the motor 52, through the stirring device 5, the motor 52 can drive the stirring rod 51 to rotate, so that the stirring rod 51 can stir the quenching oil in the quenching oil bath 1, and the cooling device 3 can uniformly cool down all the quenching oil in the quenching oil bath 1.
As shown in fig. 2, a plurality of heat dissipating fins 35 are uniformly arranged on the wall of the portion of the cooling tank 31 where the cooling water is filled, the heat absorbing ends of the heat dissipating fins 35 are arranged in the cooling tank 31 and are in contact with the cooling water, and the heat dissipating ends thereof are arranged outside the cooling tank 31, so that the heat absorbing ends of the heat dissipating fins 35 are in contact with the cooling water to absorb heat, and the heat dissipating ends thereof are arranged outside the cooling tank 31 to dissipate heat, so that the heat of the cooling water can be exchanged by the heat dissipating fins 35, thereby cooling the cooling water;
the air outlet 312 is arranged at the upper side of the cooling box 31, the nozzle group 34 is arranged below the air outlet 312, the water-blocking grid 313 is arranged between the air outlet 312 and the nozzle group 34, the water-blocking grid 313 is positioned between the air outlet 312 and the nozzle group 34 through the arranged water-blocking grid 313, the water-blocking grid 313 has a water-blocking effect, and water sprayed by the nozzle group 34 can be prevented from being driven to be discharged out of the cooling box 31 under the flowing of air flow;
the filter plate 314 is clamped at the air inlet 311, so that dust or foreign matters in the outside air can be prevented from entering the cooling box 31 through the air outlet 312 by the arranged filter plate 314, and meanwhile, the filter plate 314 is clamped and mounted, and is convenient to take out and replace.
As shown in fig. 2 and 3, more than two groups of heat conducting rods 2 are provided, and a plurality of heat conducting rods 2 are uniformly arranged along the wall of the quenching oil pool 1, so that the plurality of groups of heat conducting rods 2 can radiate quenching oil at different positions in the quenching oil pool 1, and the cooling speed of the quenching oil is increased;
the shower nozzle group 34 is the same with the quantity of heat conduction stick 2, and a plurality of shower nozzle groups 34 one-to-one extend to the one end outside quenching oil bath 1 corresponding to heat conduction stick 2, make the shower nozzle group 34 that sets up the same with the heat conduction stick 2 quantity that sets up, it can the one-to-one heat conduction stick 2 realize the cooling to every heat conduction stick 2.
As shown in fig. 2 and 4, the heat conducting rod 2 includes a water storage pipe 21, an evaporation pipe 22, an exhaust pipe 23, a return pipe 24 and a condensation pipe 25, the water storage pipe 21 is filled with water and disposed at the bottom of the quenching oil pool 1, one end of the evaporation pipe 22 is communicated with the water storage pipe 21, the other end extends upward to be communicated with one end of the exhaust pipe 23, the condensation pipe 25 is disposed in the cooling tank 31, an inlet of the condensation pipe 25 is communicated with the other end of the exhaust pipe 23, an outlet of the condensation pipe 25 is communicated with one end of the return pipe 24, the other end of the return pipe 24 is communicated with the evaporation pipe 22, the water in the water storage pipe 21 is evaporated to form steam, the steam immediately enters the evaporation pipe 22 and flows into the condensation pipe 25 with relatively low temperature through the exhaust pipe 23, the steam in the condensation pipe 25 is condensed into water after the cooling device 3 cools the condensation pipe 25, finally, the quenching oil flows back to the water storage pipe 21 through the return pipe 24 and the evaporation pipe 22 to realize the cooling of the quenching oil;
the condensation pipe 25 is a vertically arranged coil pipe, and the arrangement of the vertically arranged coil pipe of the condensation pipe 25 increases the contact surface between the condensation pipe 25 and cooling water, thereby improving the condensation effect of the cooling device 3;
the spray head group 34 comprises a plurality of spray heads which are uniformly arranged above the condensation pipe 25, so that the spray heads in the spray head group 34 can spray water corresponding to the condensation pipe 25, and the pipe body of the condensation pipe 25 can be uniformly contacted with cooling water.
The working principle is as follows: after the temperature of the oil in the quenching oil pool 1 rises, the water in the water storage pipe 21 is heated into steam and the steam enters the evaporation pipe 22, the steam automatically flows to the exhaust pipe 23 and the condensation pipe 25 with lower temperature, when the temperature of the oil is higher than the set value of the oil temperature sensor 4, the oil temperature sensor 4 starts the cooling device 3 through the controller, the water pump 33 pumps the water in the cooling tank 31 to the spray head set 34 through the connecting pipe 331, the spray head of the spray head set 34 uniformly sprays water on the condensation pipe 25, the condensation pipe 25 is contacted with the water and then cools the steam inside, meanwhile, the fan 32 is started to accelerate the airflow to enter the cooling tank 31 through the air inlet 311, the sprayed water and the heat medium on the condensation pipe 25 are rapidly discharged through the air outlet 312, finally, the cooling water in the cooling tank 31 is cooled through the radiating fins 35, the steam in the condensation pipe 25 flows back to the water storage pipe 21 through the return pipe 24 and the evaporation pipe 22, the automatic cooling of quenching oil is realized by evaporating and condensing water in the heat conducting rod 2.
The utility model discloses a heat conduction stick 2 and cooling device 3 that set up make the water in the evaporation end of heat conduction stick 2 evaporated along with the rising of oil temperature, steam gets into its heat dissipation end via the evaporation end, and utilize shower nozzle group 34 to the heat dissipation end blowout cooling water of heat conduction stick 2, and the circulation of air current in the cooling tank 31 is accelerated to fan 32 simultaneously, realizes the cooling to the heat dissipation end, with the inside steam condensation of heat dissipation end, utilize water evaporation condensation to accelerate heat conduction, thereby accelerate the fluid heat dissipation, ensure that the oil temperature keeps at suitable temperature;
the utility model discloses an oil temperature sensor 4 that sets up for detect the oil temperature of quenching oil, open cooling device 3 through the sensor when the oil temperature is higher than its setting value, realize reaching the automatic cooling to the quenching oil to the real-time supervision of oil temperature.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. The utility model provides an automatic cooling type quenching oil bath for heat treatment which characterized in that includes:
a quenching oil pool;
the heat conducting rod is arranged in the quenching oil pool, the interior of the heat conducting rod is of a hollow structure, one end of the heat conducting rod is provided with an evaporation end filled with part of water, and the other end of the heat conducting rod extends out of the quenching oil pool to form a heat dissipation end;
the cooling device comprises a cooling box, a fan, a water pump and a spray head group, wherein the cooling box surrounds a heat dissipation end, cooling water is filled in the cooling box, an air inlet and an air outlet are respectively formed in the wall of the cooling box, the fan is arranged at the air outlet, a water inlet of the water pump is communicated with a part, in which the cooling water is arranged, of the cooling box, a water outlet of the water pump is communicated with the spray head group through a connecting pipe, and the spray head group faces the heat dissipation end;
the oil temperature sensor is connected with the quenching oil pool, the detection end of the oil temperature sensor is arranged in the quenching oil pool, and the oil temperature sensor is electrically connected with the cooling device through the controller.
2. The automatic cooling type quenching oil pool for heat treatment as claimed in claim 1, wherein the heat conducting rod comprises a water storage pipe, an evaporation pipe, an exhaust pipe, a return pipe and a condensation pipe, the water storage pipe is filled with water and is arranged at the bottom of the quenching oil pool, one end of the evaporation pipe is communicated with the water storage pipe, the other end of the evaporation pipe extends upwards to be communicated with one end of the exhaust pipe, the condensation pipe is arranged in the cooling tank, an inlet of the condensation pipe is communicated with the other end of the exhaust pipe, an outlet of the condensation pipe is communicated with one end of the return pipe, and the other end of the return pipe is communicated with the evaporation pipe.
3. The automatic cooling type quenching oil pool for heat treatment as claimed in claim 2, wherein the condensation pipe is a vertically arranged serpentine pipe.
4. The automatic cooling type quenching oil pool for heat treatment as claimed in claim 2, wherein the nozzle group comprises a plurality of nozzles, and the plurality of nozzles are uniformly arranged above the condensation pipe.
5. The automatic cooling type quenching oil bath for heat treatment as claimed in claim 1, wherein a plurality of heat dissipating fins are uniformly arranged on the wall of the cooling tank where the cooling water is filled, the heat absorbing end of each heat dissipating fin is arranged in the cooling tank and is in contact with the cooling water, and the heat dissipating end of each heat dissipating fin is arranged outside the cooling tank.
6. The automatic cooling type quenching oil pool for heat treatment as claimed in claim 1, wherein the air outlet is provided at an upper side of the cooling tank, the nozzle group is provided below the air outlet, and a water blocking grid plate is provided between the air outlet and the nozzle group.
7. The automatic cooling type quenching oil pool for heat treatment as claimed in claim 1, wherein a filter plate is clamped at the air inlet.
8. The automatic cooling type quenching oil bath for heat treatment as claimed in claim 1, wherein the heat conducting rods are provided with more than two groups, and a plurality of the heat conducting rods are uniformly arranged along the wall of the quenching oil bath.
9. The automatic cooling type quenching oil bath for heat treatment as claimed in claim 1, wherein the number of the nozzle groups is the same as the number of the heat conducting rods, and a plurality of nozzle groups are in one-to-one correspondence with one ends of the heat conducting rods extending out of the quenching oil bath.
10. The automatic cooling type quenching oil pool for heat treatment according to claim 1, wherein a stirring device is further arranged on the quenching oil pool, the stirring device comprises a stirring rod and a motor, the stirring rod is vertically arranged in the quenching oil pool, one end of the stirring rod is connected with the bottom of the quenching oil pool through a bearing, and the other end of the stirring rod is coaxially connected with a central shaft of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221039507.4U CN217265884U (en) | 2022-04-27 | 2022-04-27 | Automatic cooling type quenching oil pool for heat treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221039507.4U CN217265884U (en) | 2022-04-27 | 2022-04-27 | Automatic cooling type quenching oil pool for heat treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217265884U true CN217265884U (en) | 2022-08-23 |
Family
ID=82881222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221039507.4U Expired - Fee Related CN217265884U (en) | 2022-04-27 | 2022-04-27 | Automatic cooling type quenching oil pool for heat treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217265884U (en) |
-
2022
- 2022-04-27 CN CN202221039507.4U patent/CN217265884U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220823 |