A high carbon high tungsten high speed steel roll heat treatment device and process
By designing a high-carbon, high-tungsten high-speed steel rolling roll heat treatment device combining water-cooling and air-cooling, using water-gas separation technology, the problems of quenching agent gasification and high energy consumption in existing equipment are solved, efficient cooling and quenching are achieved, metal performance is improved, and coolant is recovered.
Patent Information
- Application Number
- CN202411962695.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-04-04
AI Technical Summary
The existing high-carbon, high-tungsten high-speed steel rolling roll heat treatment equipment will cause the quenching agent to vaporize during the quenching process, increase the discomfort in the working scene, waste the quenching agent, and lack the energy-saving device.
A high carbon high tungsten high-speed steel rolling roll heat treatment device including a heating furnace, a transmission stand, a cooling chamber, an air cooler and a water cooling assembly is designed. The device is cooled by a combination of water cooling and air cooling, and the water gas is separated by a water gas separation assembly, the gas is used for air cooling, and the liquid is recovered as a secondary quenching agent.
Through water and gas separation technology, efficient cooling and quenching is achieved, energy consumption is reduced, the comprehensive performance of metals is improved, and the cooling liquid is effectively recovered, reducing the waste of quenching agent.
Smart Images
Figure CN119753307A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of metal heat treatment, and in particular to a high-carbon, high-tungsten, high-speed steel roller heat treatment device and process. Background Art
[0002] High-carbon high-speed steel roll (referred to as high-speed steel roll) is the hot-rolled roll material with the shortest time of appearance, the fastest development and the broadest application prospect. High-speed steel is also known as wind steel or sharp steel, which means that it can harden and be very sharp even when cooled in the air during quenching. It is an alloy steel with complex composition, containing carbide-forming elements such as tungsten, molybdenum, chromium, and vanadium. The total amount of alloying elements is about 10% to 25%. High-speed steel has high hardness, red hardness and wear resistance. It is now widely used in the manufacture of various cutting tools. In addition, it is also used to manufacture cold and hot working dies, rolls, high-temperature bearings and special mechanical parts with high hardness, high precision, heat resistance and wear resistance. In the context of modern mechanized mass production, high-speed steel has played a role in promoting the development of industry with the development of science and technology and the improvement of industrial production level. The application of high-speed steel rolls is an important part of the development of modern steel rolling production. It is another major change in the development of the steel industry after microalloying and controlled rolling and controlled cooling technology. The good wear resistance of high-speed steel rolls is inseparable from its characteristics that are significantly different from traditional rolls; In the traditional heat treatment of high-carbon, high-tungsten high-speed steel rolls, the high-carbon, high-tungsten high-speed steel rolls are quenched and tempered. During the quenching process, the current heat treatment equipment puts the heated high-carbon, high-tungsten high-speed steel rolls into the quenching agent for quenching. The high temperature will cause the quenching agent to vaporize. On the one hand, it will cause the working environment to deteriorate and increase the discomfort of the staff, and on the other hand, it will also waste the quenching agent. There is no energy-saving high-carbon, high-tungsten high-speed steel roll heat treatment device yet. Summary of the invention
[0003] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.
[0004] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a high-carbon, high-tungsten high-speed steel roll heat treatment device, comprising: A heating furnace is used to heat the high-carbon, high-tungsten high-speed steel roll and has an opening to the interior of the heating furnace; The transmission frame comprises a frame body and a plurality of transmission rollers rotatably arranged on the frame body; A cooling chamber is fixedly arranged on the frame; The air cooler is fixedly arranged in the cooling chamber; The water cooling component is fixedly arranged in the cooling chamber and located on one side of the air cooling machine; The cooling chamber includes an air cooling chamber for installing an air cooling machine and a water cooling chamber for installing a water cooling component; a connecting pipe is provided between the water cooling chamber and the air cooling chamber to connect the water cooling chamber and the air cooling chamber; a water vapor separation component is provided on the connecting pipe to separate the water vapor generated in the water cooling chamber; During the working process, the high-carbon, high-tungsten high-speed steel rollers that have been heated are water-cooled, and the generated water vapor is separated by a separation component; at this time, the separated gas can enter the air-cooled bin for air cooling; the liquid can return to the water-cooled bin for water cooling, which can save energy.
[0005] In some embodiments, the inner top of the water-cooled bin is formed for a tapered portion; The communication pipe is communicated with the top of the tapered portion.
[0006] In some embodiments, the water vapor separation assembly comprises: A separation cylinder, forming a communication cavity communicated with the communication pipe; A turbine is rotatably arranged at one end of the separation cylinder close to the air cooling bin; An air guide strip is arranged on the inner wall of the communicating cavity; The refrigeration ring is arranged on the inner wall of the communication cavity.
[0007] In some embodiments, two ends of the separation cylinder are respectively formed with connection ports for connection with the connecting pipe; The inner wall of the connection port near one end of the water cooling chamber is turned to a rotating ring provided for connecting the turbine; Wherein, a motor for driving the rotating ring to rotate is also arranged on the separation cylinder.
[0008] In some embodiments, the air guide strip is located between the refrigeration ring and the turbine; The air guide strip is located at the rotating ring and extends along the axial direction of the separation cylinder, and the extension track is along the circumferential rotation part of the separation cylinder; Wherein, a plurality of air guide strips are provided and are distributed in a circumferential direction along the circumferential direction of the separation cylinder.
[0009] In some embodiments, an inner wall of the communication cavity located on a side of the wind guide strip away from the turbine forms a wind guide groove; The refrigeration ring is fixedly arranged on the inner wall of the air guide groove; The refrigeration ring is connected to the semiconductor refrigeration plate to control the temperature of the refrigeration ring.
[0010] In some embodiments, the notch of the air guide groove forms a tapered air guide portion.
[0011] In some embodiments, the water cooling assembly includes: The shower plate is fixedly arranged in the water cooling chamber above the conveying roller; A water tank having a water pipe connected to the shower plate to provide cooling water; A recovery box is arranged in the water cooling chamber and is located below the transmission roller; Wherein, the inner wall of the air guide groove is connected with the recovery box through a branch pipe.
[0012] In some embodiments, the water cooling chamber forms a feed port connected to the opening to guide the heated high-carbon, high-tungsten high-speed steel roll into the water cooling chamber.
[0013] In some embodiments, a heat treatment process for a high carbon and high tungsten high speed steel roll heat treatment device comprises the following steps: S1. Heat the high carbon and high tungsten high speed steel roll to 1100°C and keep it warm for 1.8 hours; S2. The heated high-carbon high-tungsten high-speed steel roll is transferred to the water cooling chamber, and the spray plate is started to spray cool the high-carbon high-tungsten high-speed steel roll, and the spray time is controlled within 15 minutes to achieve quenching; S3, start the turbine to suck the water vapor generated in the water cooling chamber into the connecting cavity; the refrigeration ring / refrigeration plate can condense the water vapor, so as to collect the water in the water vapor and return it to the recovery box, thus realizing the separation of water and gas; S4, conveying the spray-cooled high-carbon high-tungsten high-speed steel roll to the air cooling bin, starting the air cooling machine to force air cooling the high-carbon high-tungsten high-speed steel roll for 30 minutes; until the surface temperature of the high-carbon high-tungsten high-speed steel roll drops to 200°C; S5. Send the air-cooled high-carbon high-tungsten high-speed steel roll into the heating furnace for the first tempering treatment. The tempering heating rate is less than 70℃ / h, the tempering heating temperature is 520℃~560℃, and it is naturally cooled after being kept warm for 6 hours. When the roll surface temperature is lower than 200℃; S6. Place the steel sheet in a heating furnace for a second tempering treatment. The tempering heating rate is less than 130°C / h, the tempering heating temperature is 500°C, and the furnace is cooled after 8 hours of heat preservation. When the furnace temperature is lower than 200°C, the steel sheet is taken out of the furnace.
[0014] The beneficial effects of the present application are: 1. The high-carbon, high-tungsten, high-speed steel rollers after heating can be spray-cooled and quenched through the shower plate; the water vapor generated at this time can be separated by the separation component; 2. After the water vapor separation, the generated gas can be transferred to the air cooling bin to air-cool the high-carbon, high-tungsten, high-speed steel rollers after quenching, thereby improving the metal properties; 3. The liquid after the water vapor separation can be recovered into the recovery box as a quenching agent for secondary quenching; 4. After the high-carbon, high-tungsten, high-speed steel rollers are spray-cooled and then air-cooled to quickly cool the high-carbon, high-tungsten, high-speed steel rollers to 200°C, thereby effectively improving the comprehensive properties of the metal. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.
[0016] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.
[0017] In the attached picture: Figure 1 is an overall schematic diagram according to an embodiment of the present application; Figure 2 It is a structural schematic diagram of a part of the embodiment, mainly showing a half-section schematic structure of a cooling bin; Figure 3 It is a structural schematic diagram of a part of the embodiment, mainly showing the explosion structure of the separation cylinder and the refrigeration ring; Figure 4 It is a structural schematic diagram of a part of the embodiment, mainly showing a partial cross-sectional structure of a separation cylinder; Figure 5 It is a structural schematic diagram of a part of the embodiment, mainly showing the installation structure of the refrigeration plate.
[0018] Reference numerals:
[0019] 1. Heating furnace; 2. Transfer rack; 3. Cooling bin; 4. Air cooler; 5. Opening; 6. Transfer roller; 7. Air cooling bin; 8. Water cooling bin; 9. Feeding port; 10. Shower plate; 11. Water tank; 12. Recovery tank; 13. Air guide port; 14. Conical part; 15. Separation cylinder; 16. Turbine; 17. Air guide strip; 18. Refrigeration ring; 19. Connecting cavity; 20. Connection port; 22. Air guide slot; 23. Air guide part; 24. Refrigeration plate. DETAILED DESCRIPTION
[0020] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.
[0021] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.
[0022] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.
[0023] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".
[0024] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.
[0025] Embodiment 1
[0026] Reference Figures 1 to 4 , a high-carbon high-tungsten high-speed steel roll heat treatment device, comprising: a heating furnace 1, a transmission frame 2, a cooling bin 3, an air cooler 4, and a water cooling component; Specifically, the heating furnace 1 has a heating chamber for providing a high-carbon, high-tungsten, high-speed steel roll to achieve heating treatment during heat treatment of the high-carbon, high-tungsten, high-speed steel roll; the heating chamber forms at least one opening 5 that enters the internal space of the heating chamber so as to facilitate the high-carbon, high-tungsten, high-speed steel roll to be fed into the heating chamber; a transmission frame 2 is arranged on one side of the heating furnace 1, including a frame body located on one side of the opening 5 and a transmission roller 6 rotatably arranged on the frame body for transmitting the high-carbon, high-tungsten, high-speed steel roll to move along the length direction of the frame body; wherein a cooling bin 3 is fixedly arranged on the transmission frame 2, and the fixing method may be one or more of welding, screw fixing, and bolt fixing. The present application does not make any improvement to the installation method of the cooling bin 3, and no detailed description is made; the cooling bin 3 includes an air-cooled bin 7 and a water-cooled bin 8, and the water-cooled bin 8 forms a feed port 9 connected to the opening 5 to guide the heated high-carbon, high-tungsten, high-speed steel roll to enter the water-cooled bin 8; Specifically, a sprocket is fixedly arranged at any end of the conveying roller 6, and the sprockets are connected by a chain so as to drive all the conveying rollers 6 to rotate; the direction of rotation is from the water-cooling bin 8 to the air-cooling bin 7, so that the high-carbon high-tungsten high-speed steel roller moves from the water-cooling bin 8 to the air-cooling bin 7 on the conveying roller; wherein, a water-cooling assembly for spraying coolant on the high-carbon high-tungsten high-speed steel roller is installed in the water-cooling bin 8; the water-cooling assembly includes: a shower plate 10, a water tank 11, and a recovery tank 12; more specifically, a shower plate 10 is fixedly arranged on the inner wall of the water-cooling bin 8 above the conveying roller 6, and the shower plate 10 has a plurality of rectangular arrays of spray ports; the side of the shower plate 10 has an air guide 13 for guiding water vapor to drain to the top of the shower plate 10; it can be understood that when the shower plate 10 sprays coolant on the high-carbon high-tungsten high-speed steel roller, the liquid encounters the high-carbon high-tungsten high-speed steel roller and generates a large amount of water vapor, and the blown air floats from the air guide 13 to the top of the shower plate 10; Specifically, a water tank 11 is arranged on the cooling bin 3 for storing coolant, and is connected to the shower plate 10 through a water pipe. A water pump is arranged on the water pipe to provide power for absorbing water; a recovery box 12 is arranged in the water cooling bin 8 below the transmission roller. A filter net is arranged on the recovery box 12 to filter impurities, thereby ensuring the purity of the coolant and not affecting secondary utilization.
[0027] In another specific embodiment, an air cooler is fixedly installed in the air cooling chamber 7. The air cooler 4 is a fan that can blow air to the high-carbon, high-tungsten high-speed steel rollers that have been water-cooled. Among them, the rapid cooling by water cooling and then the slow cooling by air cooling can effectively improve the comprehensive performance of the metal.
[0028] In a more specific embodiment, a connecting pipe is provided between the water-cooling bin 8 and the air-cooling bin 7 to connect the water-cooling bin 8 and the air-cooling bin 7; a water-gas separation component is provided on the connecting pipe to separate the water vapor generated in the water-cooling bin 8; the water and gas in the water vapor can be separated by the water-gas separation component; the water can flow back to the recovery box 12 for secondary use, and the gas can enter the air cooler 4 through the connecting pipe for air cooling. At this time, the cooling air blown out during air cooling is dry, which can effectively protect the metal surface; wherein, the inner top of the water-cooling bin 8 forms a tapered portion 14, and the connecting pipe is connected to the top of the tapered portion 14; the above structure can effectively gather water vapor and improve the recovery efficiency; Specifically, the water vapor separation component includes: a separation cylinder 15, a turbine 16, an air guide strip 17, and a refrigeration ring 18; wherein the separation cylinder 15 forms a connecting cavity 19 connected to the connecting pipe; the two end portions of the separation cylinder 15 are raised to form a connecting port 20, and the inner wall of the connecting port 20 is coplanar with the inner wall of the connecting cavity 19 and is arranged on the same plane; the connecting port 20 and the connecting pipe are connected by threaded connection or hot melt connection so that the connecting pipe can be connected to the connecting cavity 19; specifically, the turbine 16 is rotatably arranged on the inner wall of the connecting port 20 away from one end of the water cooling bin 8, and the rotating turbine 16 can generate suction in the conical portion 14 to suck water vapor into the connecting cavity 19.
[0029] Specifically, the inner wall of the connection port 20 away from one end of the water-cooled bin 8 is rotated to form a rotating ring for connecting the turbine 16; a circle of gear rings is arranged on the surface of the rotating ring, and a servo motor is fixedly arranged on the water-cooled bin 8; a gear meshing with the gear ring is arranged on the output shaft of the servo motor; with such arrangement, the rotation of the servo motor can drive the turbine 16 to rotate and generate suction to the conical portion 14.
[0030] More specifically, the air guide strip 17 has multiple stems and is arranged in a circular array along the circumferential direction of the connecting cavity 19; the air guide strip 17 is located at the connecting port 20 near the water cooling bin 8 and extends along the axial direction of the connecting cavity 19 toward the direction close to the turbine 16, and rotates and bends around the circumferential direction during the extension process; so that the air guide strip 17 extends in a spiral shape; it can be understood that when water vapor enters the connecting port 20, the water vapor is guided by the air guide strip 17 so that it can rotate when passing through the connecting cavity 19.
[0031] In a more specific embodiment, a refrigeration ring 18 is arranged on the inner wall of the connecting cavity 19 and between the wind guide strip 17 and the turbine 16; wherein, an air guide groove 22 for installing the refrigeration ring 18 is formed on the inner wall of the connecting cavity 19, and the inner diameter of the air guide groove 22 is larger than the inner diameter of the connecting cavity 19; an air guide portion 23 is formed at the notch of the air guide groove 22, so that the water vapor can continue to rotate without turbulence when passing through the air guide portion 23; it can be understood that the water vapor rotates after passing through the air guide strip 17, and centrifugal force can be generated during the rotation to throw most of the water in the water vapor to the outside; in this way, after contacting with the refrigeration ring 18, it encounters cold and produces a condensation effect, separating the water in the water vapor; wherein, the inner wall of the air guide groove 22 is connected to the recovery box 12 through a branch pipe; it can be understood that when the water droplets on the refrigeration ring 18 gather, they flow to the branch pipe under the influence of gravity.
[0032] Among them, the refrigeration ring 18 is connected to the semiconductor refrigeration sheet 24, which is a commercially available product and can control the temperature of the refrigeration ring 18; so that the temperature of the surface of the refrigeration ring 18 is between 0°C and 5°C, so that the water vapor generated after cooling hits the surface of the refrigeration ring 18 and can produce a condensation effect, so that the moisture in the water vapor adheres to the refrigeration ring 18 to collect moisture.
[0033] Embodiment 2
[0034] Reference Figure 4 , a refrigeration plate 24 is arranged on the inner wall of the connecting cavity 19 and between the air guide strip 17 and the turbine 16; wherein, a plurality of refrigeration plates 24 are arranged and are spaced apart along the axial direction of the connecting cavity 19; there are air leakage holes on the refrigeration plate 24 to realize the circulation of water vapor; an air guide groove 22 for installing the refrigeration ring 18 is formed on the inner wall of the connecting cavity 19, and the inner diameter of the air guide groove 22 is larger than the inner diameter of the connecting cavity 19; an air guide portion 23 is formed at the notch of the air guide groove 22, which can make the water vapor continue to rotate when passing through the air guide portion 23 without turbulence; it can be understood that the water vapor rotates after passing through the air guide strip 17, and centrifugal force can be generated during the rotation to throw most of the water in the water vapor to the outside; in this way, after contacting with the refrigeration ring 18, it encounters cold and produces a condensation effect, separating the water in the water vapor; wherein, the inner wall of the air guide groove 22 is connected to the recovery box 12 through a branch pipe; it can be understood that when the water droplets on the refrigeration ring 18 gather, they flow to the branch pipe under the influence of gravity; Among them, the cooling plate 24 is connected to the semiconductor cooling plate 24, which is a commercially available product and can control the temperature of the cooling ring 18; so that the temperature of the surface of the cooling ring 18 is between 0°C and 5°C, so that the water vapor generated after cooling hits the surface of the cooling ring 18 and can produce a condensation effect, so that the moisture in the water vapor adheres to the cooling ring 18 to collect moisture.
[0035] Embodiment 3
[0036] A high-carbon, high-tungsten high-speed steel roll heat treatment process comprises the following steps: S1. Heat the high carbon and high tungsten high speed steel roll to 1100°C and keep it warm for 1.8 hours; S2, the heated high carbon high tungsten high speed steel roll is transferred to the water cooling chamber 8, the spray plate is started to spray cool the high carbon high tungsten high speed steel roll, and the spray time is controlled within 15 minutes to achieve quenching; S3, start the turbine 16 to suck the water vapor generated in the water cooling chamber 8 into the connecting cavity 19; the refrigeration ring 18 can condense the water vapor, so as to collect the water in the water vapor and return it to the recovery box 12, thus achieving water vapor separation; S4, conveying the spray-cooled high-carbon high-tungsten high-speed steel roll to the air cooling bin 7, starting the air cooling machine 4 to force air cooling the high-carbon high-tungsten high-speed steel roll for 30 minutes; until the surface temperature of the high-carbon high-tungsten high-speed steel roll drops to 200° C.; S5. Send the air-cooled high-carbon high-tungsten high-speed steel roll into the heating furnace 1 for the first tempering treatment, the tempering heating rate is less than 70°C / h, the tempering heating temperature is 520°C to 560°C, and the roll surface temperature is naturally cooled after 6 hours of heat preservation. S6, placing in heating furnace 1 for second tempering treatment, tempering heating rate <130℃ / h, tempering heating temperature 500℃, keeping warm for 8 hours and then cooling the furnace, and taking out of the furnace when the furnace temperature is lower than 200℃; Embodiment 4
[0037] A high-carbon, high-tungsten high-speed steel roll heat treatment process comprises the following steps: S1. Heat the high carbon and high tungsten high speed steel roll to 1100°C and keep it warm for 1.8 hours; S2, the heated high carbon high tungsten high speed steel roll is transferred to the water cooling chamber 8, the spray plate is started to spray cool the high carbon high tungsten high speed steel roll, and the spray time is controlled within 15 minutes to achieve quenching; S3, start the turbine 16 to suck the water vapor generated in the water cooling chamber 8 into the connecting cavity 19; the refrigeration plate 24 can condense the water vapor, so as to collect the water in the water vapor and return it to the recovery box 12, thereby achieving water vapor separation; S4, conveying the spray-cooled high-carbon high-tungsten high-speed steel roll to the air cooling bin 7, starting the air cooling machine 4 to force air cooling the high-carbon high-tungsten high-speed steel roll for 25 minutes; until the surface temperature of the high-carbon high-tungsten high-speed steel roll drops to 200° C.; S5. Send the air-cooled high-carbon high-tungsten high-speed steel roll into the heating furnace 1 for the first tempering treatment. The tempering heating rate is less than 75°C / h, the tempering heating temperature is 520°C, and the roll surface temperature is naturally cooled after 6 hours of heat preservation. When the roll surface temperature is lower than 200°C; S6. Place the steel sheet in the heating furnace 1 for the second tempering treatment. The tempering heating rate is less than 130°C / h, the tempering heating temperature is 500°C, and the furnace is cooled after 8 hours of heat preservation. When the furnace temperature is lower than 200°C, the steel sheet is taken out of the furnace.
[0038] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.
Claims
1. A high carbon high tungsten high speed steel roll heat treatment device, characterized in that: include: A heating furnace, used for heating a high-carbon, high-tungsten high-speed steel roll, and having an opening to the interior of the heating furnace; The transmission frame comprises a frame body and a plurality of transmission rollers rotatably arranged on the frame body; A cooling chamber is fixedly arranged on the frame; An air cooler is fixedly arranged in the cooling bin; A water cooling component is fixedly arranged in the cooling bin and located on one side of the air cooling machine; Among them, the cooling bin includes an air-cooled bin for installing the air-cooled machine and a water-cooled bin for installing the water-cooled component; a connecting pipe is arranged between the water-cooled bin and the air-cooled bin to connect the water-cooled bin and the air-cooled bin; a water-vapor separation component is arranged on the connecting pipe to separate the water vapor generated in the water-cooled bin.
2. The high carbon and high tungsten high speed steel roll heat treatment device according to claim 1 is characterized in that: The inner top of the water cooling bin is formed with a conical portion; The communicating pipe is communicated with the top of the tapered portion.
3. The high carbon and high tungsten high speed steel roll heat treatment device according to claim 2 is characterized in that: The water-gas separation component comprises: A separation cylinder, forming a communication cavity communicated with the communication pipe; A turbine, rotatably disposed at one end of the separation cylinder close to the air cooling bin; An air guide strip, arranged on the inner wall of the communicating cavity; A refrigeration ring is arranged on the inner wall of the communication cavity.
4. The high carbon and high tungsten high speed steel roll heat treatment device according to claim 3 is characterized in that: Both ends of the separation cylinder are respectively formed with connection ports connected to the connecting pipe; A rotating ring is rotatably arranged on the inner wall of the connection port near one end of the water cooling chamber to connect with the turbine; Wherein, the separation cylinder is also provided with a motor for driving the rotating ring to rotate.
5. The high carbon and high tungsten high speed steel roll heat treatment device according to claim 4, characterized in that: The air guide strip is located between the refrigeration ring and the turbine; The air guide strip extends along the axial direction of the separation cylinder at the rotating ring, and the extension track rotates along the circumferential direction of the separation cylinder; There are multiple air guide strips, which are distributed in a circular pattern along the circumferential direction of the separation cylinder.
6. The high carbon and high tungsten high speed steel roll heat treatment device according to claim 5, characterized in that: An inner wall of the communication cavity located at a side of the air guide strip away from the turbine forms an air guide groove; The refrigeration ring is fixedly arranged on the inner wall of the air guide groove; The refrigeration ring is connected to a semiconductor refrigeration plate to control the temperature of the refrigeration ring.
7. The high carbon and high tungsten high speed steel roll heat treatment device according to claim 6, characterized in that: A conical air guiding portion is formed at the notch of the air guiding groove.
8. The high carbon and high tungsten high speed steel roll heat treatment device according to claim 7, characterized in that: The water cooling assembly comprises: A shower plate is fixedly arranged on the water cooling chamber and located above the conveying roller; A water tank having a water pipe connected to the shower plate to provide cooling water; A recovery box, arranged in the water cooling bin and below the transmission roller; Wherein, the inner wall of the air guide groove is connected to the recovery box through a branch pipe.
9. The high carbon and high tungsten high speed steel roll heat treatment device according to claim 1, characterized in that: The water cooling bin forms a feed port connected to the opening to guide the heated high-carbon, high-tungsten high-speed steel roll into the water cooling bin.
10. A heat treatment process for a high carbon and high tungsten high speed steel roll heat treatment device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Heat the high carbon and high tungsten high speed steel roll to 1100°C and keep it warm for 1.8 hours; S2. The heated high-carbon high-tungsten high-speed steel roll is transferred to the water cooling chamber, and the spray plate is started to spray cool the high-carbon high-tungsten high-speed steel roll, and the spray time is controlled within 15 minutes to achieve quenching; S3, start the turbine to suck the water vapor generated in the water cooling chamber into the connecting cavity; The refrigeration ring / refrigeration plate can condense the water vapor, thereby collecting the water in the water vapor and returning it to the recovery box, realizing water vapor separation; S4, conveying the spray-cooled high-carbon high-tungsten high-speed steel roll to the air cooling bin, starting the air cooling machine to force air cooling the high-carbon high-tungsten high-speed steel roll for 30 minutes; until the surface temperature of the high-carbon high-tungsten high-speed steel roll drops to 200°C; S5. Send the air-cooled high-carbon high-tungsten high-speed steel roll into the heating furnace for the first tempering treatment. The tempering heating rate is less than 70℃ / h, the tempering heating temperature is 520℃~560℃, and it is naturally cooled after being kept for 6 hours. When the roll surface temperature is lower than 200℃; S6. Place the steel sheet in a heating furnace for a second tempering treatment. The tempering heating rate is less than 130°C / h, the tempering heating temperature is 500°C, and the furnace is cooled after 8 hours of heat preservation. When the furnace temperature is lower than 200°C, the steel sheet is taken out of the furnace.