CN115369231A - Steel ball continuous quenching system and method - Google Patents
Steel ball continuous quenching system and method Download PDFInfo
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- CN115369231A CN115369231A CN202211008769.9A CN202211008769A CN115369231A CN 115369231 A CN115369231 A CN 115369231A CN 202211008769 A CN202211008769 A CN 202211008769A CN 115369231 A CN115369231 A CN 115369231A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/36—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for balls; for rollers
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention relates to the technical field of quenching devices, in particular to a continuous quenching system and a continuous quenching method for steel balls, wherein the continuous quenching system for the steel balls comprises an input track, a precooling spiral conveying mechanism, a quenching spiral conveying mechanism and a quenching bath, the input track, the precooling spiral conveying mechanism and the quenching spiral conveying mechanism are sequentially connected, and the quenching spiral conveying mechanism is arranged in the quenching bath. In the steel ball continuous quenching system, in the precooling spiral conveying mechanism, the waste heat generated after the first heating of the steel billet is utilized for air precooling, so that the power consumed by the second heating quenching is saved; in the quenching spiral conveying mechanism, water or other substances are used as quenching media, and a large number of steel balls can be continuously quenched in a quenching bath. Therefore, the system improves the production efficiency, reduces the energy consumption and solves the problems of time and labor waste caused by the traditional quenching mode.
Description
Technical Field
The invention relates to the technical field of quenching devices, in particular to a steel ball continuous quenching system and a steel ball continuous quenching method.
Background
The purpose of quenching is to transform the super-cooled austenite into martensite or bainite to obtain martensite or bainite structure, and then to improve the strength, hardness, wear resistance, fatigue strength, toughness, etc. of the steel by tempering at different temperatures, thereby satisfying different use requirements of various mechanical parts and tools.
In the production industry of building materials such as cement and the like, the ball milling of ores is needed, and the ball milling needs a large amount of steel balls with ideal wear resistance and high hardness in experiments. The production process of the steel ball also needs quenching, the quenching process consists of two stages of air precooling and water quenching, the purpose of the air precooling is to reduce thermal stress on the premise of ensuring large quenching hardness and complete quenching, the surface cracking of the forged ball in the quenching process is avoided, the purpose of the water quenching is to improve the overall hardness of the steel ball, and the main parameters of the quenching process comprise the surface water inlet temperature of the steel ball in the precooling part, the cooling time and the water temperature in the water cooling part, so that the parameters need to be reasonably controlled.
The existing steel ball quenching is generally that after a basket is filled with a ball body, the ball body is placed into a device to be secondarily heated and then water quenched, so that the operation mode is time-consuming and labor-consuming, a large amount of electric quantity is consumed to quench the steel ball, and the production efficiency is influenced. Subsequently, the steel balls are quenched in a spiral roller mode, but the quenching can be carried out on a small number of steel balls at the same time, so that the on-site production efficiency is greatly reduced.
The invention is provided in view of the above.
Disclosure of Invention
The invention aims to provide a steel ball continuous quenching system and a steel ball continuous quenching method, which realize continuous automatic quenching of steel balls, reduce manpower and solve the problems of time and labor waste caused by the traditional quenching mode.
The invention provides a continuous quenching system for steel balls, which comprises an input track, a precooling spiral conveying mechanism, a quenching spiral conveying mechanism and a quenching bath, wherein the input track, the precooling spiral conveying mechanism and the quenching spiral conveying mechanism are sequentially connected, and the quenching spiral conveying mechanism is arranged in the quenching bath.
Preferably, in the technical scheme, the pre-cooling spiral conveying mechanism comprises one or more stages of pre-cooling spiral conveyors, the pre-cooling spiral conveyors are sequentially and symmetrically arranged in parallel, and adjacent pre-cooling spiral conveyors are connected through a track; the input track is connected with the first stage of the precooling spiral conveyor, and the last stage of the precooling spiral conveyor is connected with the quenching spiral conveying mechanism through the track.
Preferably, in the technical scheme, the quenching spiral conveying mechanism comprises one or more stages of quenching spiral conveyors, the quenching spiral conveyors are sequentially and symmetrically arranged in parallel, and adjacent quenching spiral conveyors are connected through a track; the last stage of the precooling spiral conveyor is connected with the first stage of the quenching spiral conveyor through a track; all the quenching spiral conveyors are positioned in the quenching bath.
Preferably, in the technical scheme, an included angle between the precooling screw conveyor and the horizontal plane is 20-40 degrees, and the input track is connected with the bottom end of the first-stage precooling screw conveyor.
Preferably, in the technical scheme, an included angle between the quenching spiral conveyor and the horizontal plane is 20-40 degrees, and the top end of the precooling spiral conveyor at the last stage is connected with the bottom end of the quenching spiral conveyor at the first stage through a track.
Preferably, the quenching device further comprises an output rail connected to the top end of the last stage of the quenching screw conveyor.
Preferably, in the present embodiment, the quenching medium in the quenching bath includes any one of water, mineral oil, molten salt and molten alkali.
The method for continuously quenching the steel balls by using the steel ball continuous quenching system also belongs to the protection method of the invention, and the method specifically comprises the following steps:
s1, conveying the steel ball to a precooling spiral conveyor through an input track to finish air precooling of the steel ball;
s2, conveying the steel ball to a quenching spiral conveyor from the precooling spiral conveyor through a rail, quenching the steel ball, and outputting the steel ball through an output rail after quenching is finished.
Preferably, in the technical scheme, the air pre-cooling time is 3-5min; the quenching treatment time is 2-3min, and the quenching temperature is 25-45 ℃.
The steel ball continuous quenching system at least has the following technical effects:
1. the continuous quenching system for the steel ball comprises an input rail, a precooling spiral conveying mechanism, a quenching spiral conveying mechanism and a quenching bath, wherein the steel ball slides to the precooling spiral conveying system through the input rail after being forged and formed from a steel billet, and is precooled with air, then slides to the quenching spiral conveying mechanism through the rail, and is quenched through the quenching bath. The system realizes continuous automatic quenching of the steel balls, reduces manpower, and solves the problems of time and labor waste caused by the traditional quenching mode (one basket is filled and then quenching is carried out).
2. In the steel ball continuous quenching system, in the precooling spiral conveying mechanism, the waste heat generated after the first heating of the steel billet is utilized for air precooling, so that the power consumed by the second heating quenching is saved; in the quenching spiral conveying mechanism, water or other substances are used as a quenching medium, and a large number of steel balls can be quenched in a quenching bath at the same time. Therefore, the system improves the production efficiency and reduces the energy consumption.
3. In the continuous quenching system for the steel balls, when the quenching spiral conveyor rotates and quenches in the quenching bath, the steel balls not only move, but also rotate in the quenching bath, so that the aim of full quenching is fulfilled;
4. in the steel ball continuous quenching system, the precooling spiral conveyor and the quenching spiral conveyor adopt the motor to achieve the function of conveying the steel balls, and the speed of the precooling spiral conveyor and the quenching spiral conveyor can be changed by changing the frequency of the motor, so that the requirements of different specifications of steel balls on different quenching time requirements can be met, and the requirement of the change of the quenching time caused by the change of steel ball raw materials can be met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a continuous steel ball quenching system of the present invention.
Description of reference numerals:
1: inputting a track; 2: a pre-cooling screw conveyor; 3: a track; 4: a quenching screw conveyor; 5: a quenching bath; 6: and outputting the track.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "coupled" are to be construed broadly and may include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides a steel ball continuous quenching system which comprises an input track 1, a precooling spiral conveying mechanism, a quenching spiral conveying mechanism and a quenching bath 5, wherein the input track 1, the precooling spiral conveying mechanism and the quenching spiral conveying mechanism are sequentially connected, and the quenching spiral conveying mechanism is arranged in the quenching bath 5.
In a specific embodiment of the invention, the continuous quenching system for the steel balls comprises an input rail 1, a precooling spiral conveying mechanism, a quenching spiral conveying mechanism and a quenching pool 5, wherein the steel balls slide to the precooling spiral conveying system through the input rail 1 after being forged and formed from steel billets, are precooled by air, slide to the quenching spiral conveying mechanism through a rail 3 and are quenched through the quenching pool 5. The system realizes continuous automatic quenching of the steel balls, reduces manpower, and solves the problems of time and labor waste caused by the traditional quenching mode (quenching after one basket is filled and then quenching)
As shown in fig. 1, in another specific embodiment of the present invention, the pre-cooling screw conveying mechanism includes one or more stages of pre-cooling screw conveyors 2, the pre-cooling screw conveyors 2 are sequentially and symmetrically arranged in parallel, and adjacent pre-cooling screw conveyors 2 are connected by a track 3; the input track 1 is connected with the first-stage precooling spiral conveyor 2, and the last-stage precooling spiral conveyor 2 is connected with the quenching spiral conveying mechanism through a track 3; the quenching spiral conveying mechanism comprises one-stage or multi-stage quenching spiral conveyors 4, the quenching spiral conveyors 4 are sequentially and symmetrically arranged in parallel, and the adjacent quenching spiral conveyors 4 are connected through a track 3; the last stage of precooling spiral conveyor 2 is connected with the first stage of quenching spiral conveyor 4 through a track 3; all the quenching screw conveyors 4 are located inside the quenching bath.
The forged steel ball slides into a first-stage precooling spiral conveyor 2 through an input rail 1, the precooling spiral conveyor 2 rotates under the action of a motor, the steel ball moves from the bottom end to the bottom end of the precooling spiral conveyor and then slides into a rail 3 from the top end, the steel ball freely slides into a next-stage precooling spiral conveyor 2 under the action of gravity, and similarly, the precooling spiral conveyor 2 rotates under the action of the motor, so that the steel ball moves from the bottom end to the top end of the precooling spiral conveyor 2, air precooling of the steel ball is completed, and then the steel ball slides into the rail 3. The steel ball slides into a quenching spiral conveyor 4 in a quenching tank 5 through a rail 3, the quenching spiral conveyor 4 rotates under the action of a motor, the steel ball moves from the bottom end to the top end of the quenching spiral conveyor 4 and then slides into the rail 3, the steel ball freely slides into a next stage of quenching spiral conveyor 4 through the rail 3, and similarly, the quenching spiral conveyor 4 rotates under the action of the motor, the steel ball moves from the bottom end to the top end of the quenching spiral conveyor 4, the quenching treatment on the steel ball is completed, and the steel ball enters the next process.
Therefore, the continuous steel ball quenching system can realize continuous automatic quenching of steel balls, greatly improves the quenching efficiency, and simultaneously can adjust the processing time of any stage of air precooling or quenching treatment through the rotating speed of the motor so as to adapt to the requirements of different steel ball quenching processes. Meanwhile, air precooling is set before steel ball quenching, so that the waste heat of the billet after primary heating is effectively utilized for quenching, and the power cost consumed by secondary heating quenching is saved.
In addition, on the basis of the technical scheme, an included angle between the precooling spiral conveyor 2 and a horizontal plane is 20-40 degrees, and the input track 1 is connected with the bottom end of the first-stage precooling spiral conveyor 2; the included angle between the quenching spiral conveyor 4 and the horizontal plane is 20-40 degrees, and the top end of the precooling spiral conveyor 2 at the last stage is connected with the bottom end of the quenching spiral conveyor 4 at the first stage through a track 3.
According to the requirements of steel ball quenching processes with different specifications and sizes, included angles between the pre-cooling spiral conveyor 2 and the quenching spiral conveyor 4 and a horizontal plane can be adjusted adaptively, so that the requirements of steel ball air pre-cooling and quenching treatment for specific time are met. And the pre-cooling spiral conveyor 2 and the quenching spiral conveyor 4 are arranged in an inclined mode, so that free conveying of steel balls among different spiral conveyors is further ensured, and the continuity of steel ball quenching treatment is ensured.
On the basis of the above technical solution, it is further preferable that the quenching device further includes an output rail 6, and the output rail 6 is connected to the top end of the last stage of the quenching screw conveyor 4. The steel balls after quenching treatment slide into the steel ball frame through the output rail 6, so that the manpower is reduced.
The type of the quenching medium in the quenching bath 5 is not strictly limited, specifically, the quenching medium in the quenching bath 5 comprises any one of water, mineral substances, molten salt and molten alkali according to the requirements of different steel ball quenching conditions, and the temperature of the quenching medium can be regulated and controlled in real time according to the requirements.
It should be noted here that the quenching medium in the quenching bath is determined mainly by the difference in chemical components contained in the steel ball, such as iron, carbon, chromium, manganese, sulfur, phosphorus, and the like.
The method for continuously quenching the steel balls by using the most preferable steel ball continuous quenching system comprises the following steps:
s1, conveying the steel ball to a precooling spiral conveyor 2 through an input track 1, performing air precooling on the steel ball in a multistage precooling spiral conveyor 2, and controlling the air precooling time to be 3-5min;
s2, the steel ball is conveyed to a quenching spiral conveyor 4 from the precooling spiral conveyor 2 through a rail 3, quenching treatment on the steel ball is completed in the multistage quenching spiral conveyor 4, the quenching treatment time is controlled to be 2-3min, the quenching temperature is controlled to be 25-45 ℃, and the steel ball is output to a steel ball frame through an output rail 6 after quenching is completed.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A steel ball continuous quenching system is characterized by comprising an input track (1), a precooling spiral conveying mechanism, a quenching spiral conveying mechanism and a quenching bath (5),
the input track (1), the precooling spiral conveying mechanism and the quenching spiral conveying mechanism are sequentially connected, and the quenching spiral conveying mechanism is arranged in the quenching tank (5).
2. The continuous steel ball quenching system according to claim 1, wherein the pre-cooling screw conveyor mechanism comprises one or more stages of pre-cooling screw conveyors (2),
the precooling spiral conveyors (2) are sequentially arranged in parallel and symmetrically, and the adjacent precooling spiral conveyors (2) are connected through a track (3);
the input track (1) is connected with the first stage of the precooling spiral conveyor (2), and the last stage of the precooling spiral conveyor (2) is connected with the quenching spiral conveying mechanism through a track (3).
3. The continuous steel ball quenching system according to claim 2, wherein the quenching screw conveyor comprises one or more stages of quenching screw conveyors (4),
the quenching spiral conveyors (4) are sequentially and symmetrically arranged in parallel, and the adjacent quenching spiral conveyors (4) are connected through a track (3);
the last stage of the precooling spiral conveyor (2) is connected with the first stage of the quenching spiral conveyor (4) through a track (3);
all the quenching spiral conveyors (4) are positioned inside the quenching bath (5).
4. The continuous steel ball quenching system according to claim 2, wherein the angle between the pre-cooling screw conveyor (2) and the horizontal plane is 20-40 °, and the input track (1) is connected with the bottom end of the first stage of pre-cooling screw conveyor (2).
5. The continuous steel ball quenching system according to claim 3, wherein the included angle between the quenching screw conveyor (4) and the horizontal plane is 20-40 degrees, and the top end of the precooling screw conveyor (2) at the last stage is connected with the bottom end of the quenching screw conveyor (4) at the first stage through a rail (3).
6. The continuous steel ball quenching system according to claim 3, further comprising an output rail (6), wherein the output rail (6) is connected with the top end of the final stage of the quenching screw conveyor (4).
7. The continuous steel ball quenching system according to claim 1, wherein the quenching medium in the quenching bath (5) comprises any one of water, mineral oil, molten salt and molten alkali.
8. A method for continuously quenching steel balls using the steel ball continuous quenching system as claimed in any one of claims 1 to 7, characterized by comprising the steps of:
s1, conveying the steel ball to a precooling spiral conveyor (2) through an input track (1) to finish air precooling of the steel ball;
s2, conveying the steel ball from the precooling spiral conveyor (2) to a quenching spiral conveyor (4) through the track (3), quenching the steel ball, and outputting the steel ball through the output track (6) after quenching.
9. The method of claim 8, wherein the air pre-cooling is performed for a period of 3-5min.
10. The method of claim 8, wherein the quenching treatment time is 2-3min and the quenching temperature is 25-45 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211008769.9A CN115369231A (en) | 2022-08-22 | 2022-08-22 | Steel ball continuous quenching system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211008769.9A CN115369231A (en) | 2022-08-22 | 2022-08-22 | Steel ball continuous quenching system and method |
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| CN115369231A true CN115369231A (en) | 2022-11-22 |
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| CN202211008769.9A Pending CN115369231A (en) | 2022-08-22 | 2022-08-22 | Steel ball continuous quenching system and method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103352107A (en) * | 2013-06-08 | 2013-10-16 | 铜陵市明诚铸造有限责任公司 | Forging-grinding-ball isothermal-control quenching device and method |
| CN104046767A (en) * | 2014-07-11 | 2014-09-17 | 攀钢集团工程技术有限公司 | Automatic thermal treatment equipment for steel balls |
| CN204353718U (en) * | 2014-12-05 | 2015-05-27 | 汪林福 | A kind of forging and stamping steel ball production line for ball mill |
| WO2016019903A1 (en) * | 2014-08-08 | 2016-02-11 | 苏州中门子科技有限公司 | Production device and production process for wear-resistant steel ball |
| CN106086337A (en) * | 2016-08-24 | 2016-11-09 | 宁国市志诚机械制造有限公司 | A kind of steel ball quenching production line |
| CN205803550U (en) * | 2016-06-22 | 2016-12-14 | 鞍钢重型机械有限责任公司 | Roll ball production line temperature control, conveying, apparatus for continuous heat treatment |
| JP2019040800A (en) * | 2017-08-28 | 2019-03-14 | Ntn株式会社 | Induction heating apparatus |
| CN210261890U (en) * | 2019-05-31 | 2020-04-07 | 富民谭氏耐磨材料有限公司 | Continuous quenching device for steel balls |
-
2022
- 2022-08-22 CN CN202211008769.9A patent/CN115369231A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352107A (en) * | 2013-06-08 | 2013-10-16 | 铜陵市明诚铸造有限责任公司 | Forging-grinding-ball isothermal-control quenching device and method |
| CN104046767A (en) * | 2014-07-11 | 2014-09-17 | 攀钢集团工程技术有限公司 | Automatic thermal treatment equipment for steel balls |
| WO2016019903A1 (en) * | 2014-08-08 | 2016-02-11 | 苏州中门子科技有限公司 | Production device and production process for wear-resistant steel ball |
| CN204353718U (en) * | 2014-12-05 | 2015-05-27 | 汪林福 | A kind of forging and stamping steel ball production line for ball mill |
| CN205803550U (en) * | 2016-06-22 | 2016-12-14 | 鞍钢重型机械有限责任公司 | Roll ball production line temperature control, conveying, apparatus for continuous heat treatment |
| CN106086337A (en) * | 2016-08-24 | 2016-11-09 | 宁国市志诚机械制造有限公司 | A kind of steel ball quenching production line |
| JP2019040800A (en) * | 2017-08-28 | 2019-03-14 | Ntn株式会社 | Induction heating apparatus |
| CN210261890U (en) * | 2019-05-31 | 2020-04-07 | 富民谭氏耐磨材料有限公司 | Continuous quenching device for steel balls |
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