CN211570733U - Quenching cooling device for high-speed steel roller - Google Patents
Quenching cooling device for high-speed steel roller Download PDFInfo
- Publication number
- CN211570733U CN211570733U CN202020052151.2U CN202020052151U CN211570733U CN 211570733 U CN211570733 U CN 211570733U CN 202020052151 U CN202020052151 U CN 202020052151U CN 211570733 U CN211570733 U CN 211570733U
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- China
- Prior art keywords
- speed steel
- quenching
- cooling device
- steel roller
- workbench
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- Expired - Fee Related
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- 238000001816 cooling Methods 0.000 title claims abstract description 67
- 229910000997 High-speed steel Inorganic materials 0.000 title claims abstract description 61
- 238000010791 quenching Methods 0.000 title claims abstract description 59
- 230000000171 quenching effect Effects 0.000 title claims abstract description 59
- 238000010438 heat treatment Methods 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 62
- 239000007921 spray Substances 0.000 claims description 38
- 239000003292 glue Substances 0.000 claims description 6
- 230000008439 repair process Effects 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 238000004321 preservation Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 10
- 238000012360 testing method Methods 0.000 description 20
- 238000005096 rolling process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Abstract
A quenching cooling device for a high-speed steel roller comprises a quenching device, a cooling device and a workbench, wherein the workbench is used for placing the high-speed steel roller, the quenching device is arranged on one side of the workbench, and the cooling device is arranged on the other side of the workbench in the opposite direction; the quenching device comprises a heating ring, a heat preservation layer, a thermocouple and a thermocouple instrument, wherein the heating ring is installed on the workbench, the high-speed steel roller is placed in the heating ring, the thermocouple instrument, the thermocouple and the high-speed steel roller are sequentially connected, and the heat preservation layer is arranged on one side of the high-speed steel roller. A quenching cooling device for high-speed steel roll, device simple structure, the simple operation, including heating, heat preservation, cooling three stage, brittle failure can not appear in the quenching process, cooling rate is fast, application prospect is extensive.
Description
Technical Field
The utility model relates to a quenching cooling device technical field, concretely relates to a quenching cooling device for high-speed steel roll.
Background
Rolls, the main working parts and tools on rolling mills that produce continuous plastic deformation of metals. The roller mainly comprises a roller body, a roller neck and a shaft head 3. The roll body is the intermediate portion of the roll that actually participates in rolling metal and has a smooth cylindrical or grooved surface. The roll neck is mounted in bearings and transmits the rolling force to the stand through a bearing block and a screw down device. The driving end shaft head is connected with the gear seat through a connecting shaft, and the rotating torque of the motor is transmitted to the roller. The rolls may be arranged in two, three, four or more rolls in the mill stand.
The classification method of the roll includes (1) a strip roll, a section roll, a wire roll, etc. according to the product type, (2) a cogging roll, a roughing roll, a finishing roll, etc. according to the position of the roll in the rolling mill series, (3) a scale breaking roll, a perforation roll, a leveling roll, etc. according to the roll function, (4) a steel roll, a cast iron roll, a cemented carbide roll, a ceramic roll, etc. according to the roll material, (5) a casting roll, a forging roll, a build-up welding roll, a bushing roll, etc. according to the manufacturing method, and (6) a hot roll, a cold roll according to the state of the rolled steel material. The various classifications can be combined to make the rolls have a more definite meaning, such as centrifugally cast high-chromium cast iron work rolls for hot-rolled steel strip.
In the production process of the roller, the quenching and cooling treatment of the roller is an important process. The quenching process comprises three stages of heating, heat preservation and cooling. The quenching can greatly improve the strength and the hardness of the roller, and the quenching quality can directly influence the final service performance of the roller and the roller ring. The more reasonable the quenching cooling device is, the less the possibility of brittle fracture in the quenching process is, and the longer the service life of the roller is.
Chinese patent application No. CN201811331936.7 discloses a water-cooling quenching device for aluminum plates, which aims to realize automatic feeding and automatic discharging of aluminum plates, thereby improving the automation degree of the aluminum plates during water-cooling quenching, and improving the quenching and cooling mechanisms of the quenching cooling device little.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome not enough above, the utility model aims at providing a quenching cooling device for high-speed steel roll, device simple structure, the simple operation can heat, keep warm, cool off three stage operation through guenching unit, cooling device on placing the workstation with high-speed steel roll, can not appear brittle failure in the quenching process, and cooling rate is fast, has improved the intensity and the hardness of roll, has increased the life of roll, and application prospect is extensive.
The technical scheme is as follows: a quenching cooling device for a high-speed steel roller comprises a quenching device, a cooling device and a workbench, wherein the workbench is used for placing the high-speed steel roller, the quenching device is arranged on one side of the workbench, and the cooling device is arranged on the other side of the workbench in the opposite direction; the quenching device comprises a heating ring, a heat preservation layer, a thermocouple and a thermocouple instrument, wherein the heating ring is installed on the workbench, the high-speed steel roller is placed in the heating ring, the thermocouple instrument, the thermocouple and the high-speed steel roller are sequentially connected, and the heat preservation layer is arranged on one side of the high-speed steel roller.
A quenching cooling device for high-speed steel roll, on placing the workstation with high-speed steel roll, in the heating collar, heat high-speed steel roll test piece through the heating collar, treat after the high-speed steel roll test piece passes through the thermocouple instrument observation through the thermocouple test and reaches quenching heating temperature, the stop heating, then carry out the heat preservation of a period to high-speed steel roll test piece through the heat preservation, treat that the test temperature of thermocouple instrument tends to unanimity, after keeping quenching heating temperature, the heat preservation stage finishes. And starting the cooling device, carrying out a cooling process, closing the cooling device when the readings of the thermocouples in the high-speed steel roll test piece are lower than 80 ℃, and finishing the quenching cooling process after the test piece is cooled to room temperature.
Furthermore, the cooling device comprises a first water tank, a water pump and a spray head, wherein the first water tank, the water pump and the spray head are sequentially connected, and the spray head faces the high-speed steel roller.
Furthermore, the cooling device also comprises a valve and a flowmeter, the valve is arranged between the first water tank and the water pump, the flowmeter is arranged between the water pump and the spray head,
the water tank provides water source for the cooling process, the water outlet speed of the spray head is controlled by adjusting the water pressure, the adjustment of the water pressure is realized by the opening degree of the valve, and the flow meter is used for displaying the flow rate of the water flow.
Furthermore, the cooling device further comprises a second water tank, the second water tank is arranged below the spray head, and a drain hole is formed in the bottom of the second water tank.
And spraying the high-speed steel roller by a spray head, and discharging the water flow participating in quenching and cooling into a water tank II through a water discharge hole.
Furthermore, the outer surface of the heating ring is coated with high-temperature industrial repair glue.
In order to prevent water flow from entering the heating ring, a layer of high-temperature industrial repair glue is coated on the heating ring, and the repair glue can completely separate water from the heating ring after solidification and can resist the temperature as high as 1200 ℃, so that the repair glue is not worried about failure under the high-temperature condition.
Further, the heating ring is a high-temperature ceramic heating ring, and the rated power of the heating ring is 1.3 kW.
The high-temperature ceramic heating ring has the advantages of convenient installation, high temperature resistance, fast heat transfer, good insulation, no limitation on the size of the model and the specification, and the like.
Furthermore, a water baffle is arranged between the spray head and the high-speed steel roller.
The water baffle is added between the spray head and the high-speed steel roll test piece, so that the water pressure is difficult to directly stabilize after the water pump is started, and after the water pressure is stabilized, the water baffle is opened, and the water of the spray head is contacted with the high-speed steel roll test piece to start cooling.
Furthermore, the spray head is provided with 700 spray holes, and the diameter of each spray hole is 0.55 mm.
The spray head is the most important part of the quenching cooling device, and the performance of the spray head is directly related to the quenching completion quality of the test piece. The nozzle is provided with 700 spray holes, the diameter of each spray hole is 0.55mm, the design increases the outflow speed of water flow, and the cooling speed and the surface heat flux density of a test piece in the boiling stage are improved.
The utility model has the advantages that:
(1) the quenching cooling device for the high-speed steel roller has the advantages of simple device, simple operation, integration of heating, heat preservation and cooling operation, labor and time saving and high operation efficiency;
(2) the quenching cooling device for the high-speed steel roller of the utility model has the advantages of no brittle fracture in the quenching process, high cooling speed, improved strength and hardness of the roller, prolonged service life of the roller and wide application prospect;
(3) the quenching cooling device for the high-speed steel roller takes water as a quenching cooling medium, is low in cost, safe, clean, stable in performance and strong in cooling capacity; the nozzle is provided with 700 spray holes, the diameter of each spray hole is 0.55mm, the design increases the outflow speed of water flow, and the cooling speed and the surface heat flux density of a test piece in the boiling stage are improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the quenching cooling device for high-speed steel rolls according to the present invention;
in the figure: the quenching device comprises a quenching device 1, a cooling device 2, a first water tank 21, a water pump 22, a spray head 23, a water baffle 231, a valve 24, a flow meter 25, a second water tank 26, a workbench 3, a heating ring 11, a heat-insulating layer 12, a thermocouple 13, a thermocouple instrument 14 and a high-speed steel roll.
Detailed Description
The invention will be further elucidated with reference to fig. 1 and an exemplary embodiment.
The quenching cooling device for the high-speed steel roller with the structure shown in fig. 1 comprises a quenching device 1, a cooling device 2 and a workbench 3, wherein the workbench 3 is used for placing the high-speed steel roller, the quenching device 1 is installed on one side of the workbench 3, and the cooling device 2 is installed on the other side of the workbench 3 in the opposite direction; the quenching device 1 comprises a heating ring 11, a heat-insulating layer 12, a thermocouple 13 and a thermocouple instrument 14, wherein the heating ring 11 is installed on the workbench 3, the high-speed steel roller is placed in the heating ring 11, the thermocouple instrument 14 and the thermocouple 13 are sequentially connected with the high-speed steel roller, and the heat-insulating layer 12 is arranged on one side of the high-speed steel roller.
Further, the cooling device 2 comprises a first water tank 21, a water pump 22 and a spray head 23, the first water tank 21, the water pump 22 and the spray head 23 are sequentially connected, and the spray head 23 faces the high-speed steel roller.
In addition, the cooling device further comprises a valve 24 and a flow meter 25, wherein the valve 24 is installed between the first water tank 21 and the water pump 22, and the flow meter 25 is installed between the water pump 22 and the spray head 23.
Further, the cooling device 2 further includes a second water tank 26, the second water tank 26 is disposed below the spray head 23, and a drain hole is disposed at the bottom of the second water tank 26.
Further, the outer surface of the heating ring 11 is coated with high-temperature industrial repair glue. In addition, the heating ring 11 is a high-temperature ceramic heating ring, and the rated power of the heating ring 11 is 1.3 kW.
Further, a water baffle 231 is arranged between the spray head 23 and the high-speed steel roller. The spray head 23 has 700 spray holes, and the diameter of the spray holes is 0.55 mm.
Examples
Based on the above structural basis, as shown in fig. 1.
When the device works, the high-speed steel roller a is placed on the workbench 3 and in the heating ring 11, the high-speed steel roller a test piece is heated through the heating ring 11, after the high-speed steel roller a test piece is tested by the thermocouple 13 and observed by the thermocouple instrument 14 to reach the quenching heating temperature, the heating is stopped, then the high-speed steel roller a test piece is subjected to heat preservation for a period of time through the heat preservation layer 12, after the testing temperature of the thermocouple instrument 14 tends to be consistent, and after the quenching heating temperature is kept, the heat preservation stage is finished.
And (3) starting the water pump 22, adjusting the water outlet speed of the spray head 23 through the valve 24 and the flowmeter 25 to ensure that the spray head 23 can completely cover the high-speed steel roll a test piece, opening the water baffle 231 after the water pressure is stable, enabling the water of the spray head 23 to be in contact with the high-speed steel roll a test piece to start cooling, closing the cooling device 2 when the readings of the thermocouples 14 in the high-speed steel roll a test piece are all lower than 80 ℃, and finishing the quenching and cooling process after the high-speed steel roll a test piece is cooled to room temperature.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.
In addition, the embodiments of the present invention can be arbitrarily combined with each other, and the same shall be regarded as the disclosure of the present invention as long as the idea of the present invention is not violated.
Claims (8)
1. The quenching cooling device for the high-speed steel roller is characterized by comprising a quenching device (1), a cooling device (2) and a workbench (3), wherein the workbench (3) is used for placing the high-speed steel roller, the quenching device (1) is installed on one side of the workbench (3), and the cooling device (2) is installed on one side of the workbench (3) in the opposite direction; the quenching device (1) comprises a heating ring (11), a heat-insulating layer (12), a thermocouple (13) and a thermocouple instrument (14), wherein the heating ring (11) is installed on the workbench (3) and the high-speed steel roller is placed in the heating ring (11), the thermocouple instrument (14) and the thermocouple (13) are sequentially connected with the high-speed steel roller, and the heat-insulating layer (12) is arranged on one side of the high-speed steel roller.
2. The quenching and cooling device for the high-speed steel roll according to claim 1, characterized in that the cooling device (2) comprises a first water tank (21), a water pump (22) and a spray head (23), the first water tank (21), the water pump (22) and the spray head (23) are connected in sequence, and the spray head (23) faces the high-speed steel roll.
3. The quenching cooling device for the high-speed steel roller according to claim 2, characterized in that the cooling device further comprises a valve (24) and a flow meter (25), wherein the valve (24) is installed between the first water tank (21) and the water pump (22), and the flow meter (25) is installed between the water pump (22) and the spray head (23).
4. The quenching and cooling device for the high-speed steel roller as claimed in claim 2, characterized in that the cooling device (2) further comprises a second water tank (26), the second water tank (26) is arranged below the spray head (23), and the bottom of the second water tank (26) is provided with a drain hole.
5. The quenching and cooling device for the high-speed steel roller as claimed in claim 1, wherein the outer surface of the heating ring (11) is coated with high-temperature industrial repair glue.
6. The quenching and cooling device for the high-speed steel roll according to claim 1, characterized in that the heating ring (11) is a high-temperature ceramic heating ring, and the rated power of the heating ring (11) is 1.3 kW.
7. The quenching and cooling device for the high-speed steel roll according to claim 2, characterized in that a water baffle (231) is arranged between the spray head (23) and the high-speed steel roll.
8. The quenching and cooling device for the high-speed steel roll according to claim 2, characterized in that the nozzle (23) has 700 nozzles with a diameter of 0.55 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020052151.2U CN211570733U (en) | 2020-01-10 | 2020-01-10 | Quenching cooling device for high-speed steel roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020052151.2U CN211570733U (en) | 2020-01-10 | 2020-01-10 | Quenching cooling device for high-speed steel roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211570733U true CN211570733U (en) | 2020-09-25 |
Family
ID=72555860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020052151.2U Expired - Fee Related CN211570733U (en) | 2020-01-10 | 2020-01-10 | Quenching cooling device for high-speed steel roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211570733U (en) |
-
2020
- 2020-01-10 CN CN202020052151.2U patent/CN211570733U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20200925 |