CN213012980U - Quenching cooling device for working roll of eighteen-high rolling mill during heat treatment - Google Patents
Quenching cooling device for working roll of eighteen-high rolling mill during heat treatment Download PDFInfo
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- CN213012980U CN213012980U CN202021784162.6U CN202021784162U CN213012980U CN 213012980 U CN213012980 U CN 213012980U CN 202021784162 U CN202021784162 U CN 202021784162U CN 213012980 U CN213012980 U CN 213012980U
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Abstract
The quenching and cooling device for the heat treatment of the working rolls of the eighteen-roller mill comprises a case, a solution sprayer, a solution tank, a pressure pump, an air cooler and a waste liquid collector; the roller supporting and rotating device is arranged at the bottom in the case, the solution sprayers are respectively arranged in the two sides of the case body of the case, and the solution tank is arranged on one side of the top of the closed case and is respectively connected with the solution sprayers through solution pipelines; the lower part of the case is connected with a waste liquid collector through a pipeline; the pressure pump is respectively connected with the solution sprayers arranged in the two sides of the case body through pressure pipes. The utility model discloses a cooling process when quenching in the heat treatment to eighteen rolling mill working rolls carries out program control, can change the cooling curve through the method of adjustment procedure parameter, and the reliability is high, the repeatability is better, the flexibility is good, and easy operation, and it is convenient to maintain, practices thrift the cost of enterprise.
Description
Technical Field
The utility model belongs to the technical field of roll production facility is relevant, concretely relates to quenching heat sink during eighteen rolling mill working rolls heat treatment.
Background
The roller is one of the most important parts of the rolling mill and is the most main consumable spare part of the rolling mill, and the performance of the roller directly determines the cost, the performance and the yield of steel products. The high-chromium cast steel centrifugal composite working roll is mainly used as a working roll of a rough rolling frame of a hot continuous rolling mill and a rough rolling frame of a steckel mill due to the advantages of good heat resistance, wear resistance, accident resistance and the like. In order to produce the high-performance high-chromium cast steel working roll, the working procedures of casting, heat treatment, processing and the like are required, and particularly the heat treatment procedure directly determines the performance of the high-chromium cast steel working roll.
Quenching is a heat treatment process of metals in which a metal workpiece is heated to a suitable temperature and held for a period of time, and then immersed in a quenching medium for rapid cooling. Common quenching media are brine, water, mineral oil, air, and the like. The quenching can improve the hardness and the wear resistance of the metal workpiece, so the quenching method is widely used for various tools, dies, measuring tools and parts (such as gears, rollers, carburized parts and the like) with the required surface wear resistance. Through the matching of quenching and tempering at different temperatures, the strength, toughness reduction and fatigue strength of the metal can be greatly improved, and the matching (comprehensive mechanical properties) among the properties can be obtained to meet different use requirements. In addition, quenching can also make some special steel obtain certain physical and chemical properties, for example, quenching can make permanent magnet steel strengthen its ferromagnetism, stainless steel raise its corrosion resistance, etc.
The heat treatment is one of the key means for improving the toughness of the material and obtaining the special service performance, the quenching of the material only needs to be carried out at the initial stage, when the structure transformation is completed, if the rapid cooling is continuously carried out, the internal stress is generated, and the potential deformation and cracking tendency of the material is great. On the premise of obtaining the required material performance, a relatively mild cooling medium should be adopted as far as possible, and the internal stress and the deformation amount can be remarkably reduced by controlling the cooling speed, so that the cooling according to a certain ideal cooling curve is the subject of intense research.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a quenching and cooling device for the heat treatment of the working rolls of eighteen rolling mills aiming at the defects in the prior art.
In order to realize the utility model discloses, adopt following technical scheme: the quenching and cooling device for the heat treatment of the working rolls of the eighteen-roller mill comprises a case, a solution sprayer, a solution tank, a pressure pump, an air cooler and a waste liquid collector; the roller supporting and rotating device is arranged at the bottom in the case, the solution sprayers are respectively arranged in the two sides of the case body of the case, and the solution tank is arranged on one side of the top of the closed case and is respectively connected with the solution sprayers through solution pipelines; the lower part of the case is connected with a waste liquid collector through a pipeline; the pressure pump is respectively connected with the solution sprayers arranged in the two sides of the case body through pressure pipes.
Preferably, the roller supporting and rotating device comprises a roller supporting frame and a movable roller, the movable roller is arranged between the contact surfaces of the roller and the roller supporting frame, the bottom of the roller supporting frame is provided with a pulley, and the roller supporting and rotating device enters and exits the case through the pulley.
Preferably, a pressure detector is arranged in the closed machine box and connected with the pressure pump to control the operation of the pressure pump.
Has the advantages that: (1) the utility model discloses a cooling process when quenching in the heat treatment to eighteen rolling mill working rolls carries out program control, can change the cooling curve through the method of adjustment procedure parameter, and the reliability is high, the repeatability is better, the flexibility is good, and easy operation, and it is convenient to maintain, practices thrift the cost of enterprise.
(2) The utility model has simple and compact structure, reasonable layout and strong operability among related devices, improves the processing degree of the whole device and greatly improves the working efficiency; the waste liquid collector recycles and treats waste gas and waste water in the using process, improves the waste water utilization rate, and is energy-saving and environment-friendly.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described with reference to fig. 1.
The quenching and cooling device for the heat treatment of the working rolls of the eighteen-roller mill comprises a case 1, a solution sprayer 2, a solution tank 3, a pressure pump 4, an air cooler 5 and a waste liquid collector 6; the roller supporting and rotating device 7 is arranged at the bottom in the case 1, the solution sprayers 2 are respectively arranged in the two sides of the case body of the case 1, and the solution tank 3 is arranged at one side of the top of the closed case 1 and is respectively connected with the solution sprayers 2 through solution pipelines 12; the lower part of the case 1 is connected with a waste liquid collector 6 through a pipeline; the pressure pump 4 is respectively connected with the solution sprayers 2 arranged in the two sides of the box body of the machine case 1 through pressure pipes 13.
The roller supporting and rotating device 7 comprises a roller supporting frame 8 and a movable roller 9, the movable roller 9 is arranged between the contact surfaces of the roller and the roller supporting frame 8, a pulley 10 is arranged at the bottom of the roller supporting frame 8, and the roller supporting and rotating device enters and exits the case 1 through the pulley 10.
A pressure detector 11 is arranged in the closed case 1, and the pressure detector 11 is connected with and controls the pressure pump 4 to operate.
Claims (3)
1. The quenching and cooling device for the heat treatment of the working rolls of the eighteen-roller mill is characterized by comprising a case (1), a solution sprayer (2), a solution box (3), a pressure pump (4), an air cooler (5) and a waste liquid collector (6); the roller supporting and rotating device (7) is arranged at the bottom in the case (1), the solution sprayers (2) are respectively arranged in the two sides of the case body of the case (1), and the solution tanks (3) are arranged on one side of the top of the closed case (1) and are respectively connected with the solution sprayers (2) through solution pipelines (12); the lower part of the case (1) is connected with a waste liquid collector (6) through a pipeline; the pressure pump (4) is respectively connected with the solution sprayers (2) arranged in the two sides of the box body of the case (1) through pressure pipes (13).
2. The quenching and cooling device for the heat treatment of the working rolls of the eighteen-high rolling mill according to claim 1, wherein the roll supporting and rotating device (7) comprises a roll supporting frame (8) and a movable rolling shaft (9), the movable rolling shaft (9) is arranged between the contact surfaces of the rolls and the roll supporting frame (8), and the bottom of the roll supporting frame (8) is provided with a pulley (10).
3. The quenching and cooling device for the heat treatment of the working rolls of the eighteen rolling mills according to claim 1, wherein a pressure detector (11) is arranged in the closed case (1), and the pressure detector (11) is connected with and controls the operation of the pressure pump (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021784162.6U CN213012980U (en) | 2020-08-25 | 2020-08-25 | Quenching cooling device for working roll of eighteen-high rolling mill during heat treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021784162.6U CN213012980U (en) | 2020-08-25 | 2020-08-25 | Quenching cooling device for working roll of eighteen-high rolling mill during heat treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213012980U true CN213012980U (en) | 2021-04-20 |
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ID=75470317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021784162.6U Active CN213012980U (en) | 2020-08-25 | 2020-08-25 | Quenching cooling device for working roll of eighteen-high rolling mill during heat treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213012980U (en) |
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2020
- 2020-08-25 CN CN202021784162.6U patent/CN213012980U/en active Active
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