CN110846481A - Device and method for preparing isolated plate spring steel sheet - Google Patents
Device and method for preparing isolated plate spring steel sheet Download PDFInfo
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- CN110846481A CN110846481A CN201911099880.1A CN201911099880A CN110846481A CN 110846481 A CN110846481 A CN 110846481A CN 201911099880 A CN201911099880 A CN 201911099880A CN 110846481 A CN110846481 A CN 110846481A
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- cooling box
- spring steel
- way valve
- plate spring
- steel sheet
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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
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
- C21D1/64—Quenching devices for bath quenching with circulating liquids
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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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
-
- 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
- C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Control Of Heat Treatment Processes (AREA)
Abstract
The invention relates to a device and a method for preparing an isolated plate spring steel sheet, which comprises an upper cooling box, a lower cooling box, a controller and the like, wherein a one-way valve I is connected with a water inlet connector I of the upper cooling box to prevent water in the upper cooling box from flowing back; the one-way valve II is connected with a water inlet connector II of the lower cooling box to prevent water in the lower cooling box from flowing back, the water outlet connector IV and the one-way valve IV prevent water in a water outlet from flowing back, and the temperature sensor II is arranged in the lower cooling box; the controller controls the opening degree of the proportional valve and the water supply speed of the circulating pump through a temperature signal detected by the temperature sensor, so that the temperature feedback adjustment of the upper cooling box and the lower cooling box is realized, and the purpose of controlling the temperature of the plate spring steel sheet is achieved. The method solves the problem of quenching deformation and fracture of the spring steel bar in the traditional spring steel bar preparation process, and overcomes the defects of serious pollution and high cost in the traditional process mode.
Description
Technical Field
The invention relates to a device and a method for preparing an isolated spring steel bar, and belongs to the field of manufacturing and processing of spring steel bars.
Background
Spring steel is a raw material for producing elastic elements such as spring leaf springs, and is required to have high tensile strength, elastic limit, and fatigue strength because springs are used under impact, vibration, or long-term alternating stress. The spring steel is required to have certain hardenability, difficult decarburization, good surface quality and the like in the process, and the preparation process of the spring steel bar is a key factor for limiting the performance of the plate spring.
At present, the commonly used spring steel bar preparation process mainly comprises the process flows of hot rolling the spring steel bar, shearing, variable cross section, lug rolling, forming heat treatment, shot blasting, assembling and the like, wherein in the forming heat treatment stage, the traditional process flow comprises four aspects of heating, forming, quenching oil feeding and tempering. The method not only can easily cause the deformation and the fracture of the spring steel bar, but also has the defects of serious pollution, high cost, large danger coefficient and the like. Therefore, a novel spring steel bar preparation device and a novel spring steel bar preparation process are urgently needed to improve the performance of the spring steel bar.
Disclosure of Invention
The invention aims to provide a novel preparation device and a novel preparation process which can overcome the defects of the traditional spring steel bar preparation, and provide a key technical support for improving the performance of the spring steel bar. The technical scheme is as follows:
a device and a method for preparing spring steel comprise an upper cooling box, a lower cooling box, a plate spring steel sheet, a temperature sensor I, a temperature sensor II, a circulating pump I, a circulating pump II, a proportional valve I, a proportional valve II, a one-way valve I, a one-way valve II, a one-way valve III, a one-way valve IV, a water inlet connector I, a water inlet connector II, a water outlet connector I, a water outlet connector II, an analyzer and a controller. The upper cooling box is connected with a water inlet connector I and a water outlet connector I respectively, a one-way valve I is connected with the water inlet connector I to prevent water in the upper cooling box from flowing backwards, a water outlet connector I is connected with a one-way valve III to prevent water in a water outlet from flowing backwards, a proportional valve I is connected with the one-way valve I to control the flow of cooling liquid, and a temperature sensor I is arranged in the upper cooling box; the lower cooling box is connected with the water inlet connector II and the water outlet connector II respectively, the one-way valve II is connected with the water inlet connector II to prevent water in the lower cooling box from flowing back, the water outlet connector II is connected with the one-way valve IV to prevent water in a water outlet from flowing back, the proportional valve II is connected with the one-way valve II to control the flow of cooling liquid, and the temperature sensor II is arranged in the lower cooling box. The analyzer receives temperature signals detected by the temperature sensor I and the temperature sensor II, controls the opening of the proportional valve, the water supply speed of the circulating pump I and the water supply speed of the circulating pump II through the controller, realizes temperature feedback adjustment of the upper cooling box and the lower cooling box, and achieves the purpose of controllable temperature of the plate spring steel sheet.
Furthermore, the temperature sensor I and the temperature sensor II are respectively connected with the analyzer, and the analyzer is connected with the controller, so that the temperature regulation and control are realized.
Further, circulating pump I links to each other with proportional valve I, and proportional valve I links to each other with check valve I, and circulating pump II links to each other with proportional valve II, and proportional valve II and check valve II.
A preparation method of spring steel comprises the following steps:
starting a circulating pump I and a circulating pump II, and filling cooling liquid with certain temperature in an upper cooling tank and a lower cooling tank of an isolated spring steel preparation device;
setting the temperature of the upper cooling box and the temperature of the lower cooling box, and placing the plate spring steel sheet between the upper cooling box and the lower cooling box;
controlling the water supply speeds of the circulating pump I and the circulating pump II and the opening degrees of the proportional valve I and the proportional valve II under the action of the controller, further controlling the temperatures of the upper cooling box and the lower cooling box to be kept unchanged at set temperatures, realizing the rapid cooling of the plate spring steel sheet and forming a martensite structure;
and step four, opening the upper cooling box and the lower cooling box, and taking out the plate spring steel sheet.
Compared with the prior art, the invention has the advantages that:
1. the invention relates to a device and a method for preparing an isolated plate spring steel sheet. In the forming heat treatment stage, the quenching oil-entering stage is omitted, the isolated water cooling is directly adopted to form the martensite structure, the method can solve the problem that the plate spring steel sheet is easy to deform in the forming process, and the preparation efficiency of the spring steel can be greatly improved.
2. The novel preparation method of the spring steel adopts an isolated water cooling mode, and can effectively control the temperature reduction efficiency of the spring steel sheet.
3. The novel spring steel preparation method omits the quenching oil entering, can greatly reduce the danger, eliminates the environmental pollution and meets the requirement of environmental friendliness.
Drawings
FIG. 1 isolated leaf spring steel sheet preparation facilities
FIG. 2 temperature feedback control mechanism for leaf spring steel
In the figure: 1. an upper cooling tank; 2. a lower cooling tank; 3. a leaf spring steel sheet; 4. a temperature sensor I; 5. a temperature sensor II; 6. a circulating pump I; 7, a circulating pump II; 8. a proportional valve I; 9. a proportional valve II; 10. a one-way valve I; 11. a one-way valve II; 12. a one-way valve III; 13. a one-way valve IV; 14. a water inlet joint I; 15. a water inlet joint II; 16. a water outlet joint I; 17. a water outlet joint II; 18. an analyzer; 19. and a controller.
Detailed Description
In order to further illustrate the feasibility and the practicability of the invention patent, the invention patent is described in detail by combining the schematic diagrams.
An isolated plate spring steel sheet preparation device and method are shown in figure 1 and comprise an upper cooling box 1, a lower cooling box 2, a plate spring steel sheet 3, a temperature sensor I4, a temperature sensor II 5, a circulating pump I6, a circulating pump II 7, a proportional valve I8, a proportional valve II 9, a one-way valve I10, a one-way valve II 11, a one-way valve III 12, a one-way valve IV 13, a water inlet connector I14, a water inlet connector II 15, a water outlet connector I16, a water outlet connector II 17, an analyzer 18 and a controller 19. The upper cooling box 1 is connected with a water inlet connector I14 and a water outlet connector I16 respectively, a one-way valve I10 is connected with the water inlet connector I14 to prevent water in the upper cooling box 1 from flowing back, the water outlet connector I16 is connected with a one-way valve III 12 to prevent water in a water outlet from flowing back, a proportional valve I8 is connected with the one-way valve I10 to control the flow of cooling liquid, and a temperature sensor I4 is arranged in the upper cooling box 1; the lower cooling box 2 is connected with a water inlet connector II 15 and a water outlet connector II 17 respectively, a one-way valve II 11 is connected with the water inlet connector II 15 to prevent water in the lower cooling box 2 from flowing back, the water outlet connector II 17 is connected with a one-way valve IV 13 to prevent water in a water outlet from flowing back, a proportional valve II 9 is connected with the one-way valve II 11 to control the flow of cooling liquid, and a temperature sensor II 5 is arranged in the lower cooling box 2. The analyzer 18 receives a temperature signal detected by the temperature sensor II 5, and controls the opening degree of the proportional valve 8, the opening degree of the proportional valve 9, the water supply speed of the circulating pump 6 and the water supply speed of the circulating pump 7 through the controller 19, so that the temperature feedback adjustment of the upper cooling box 1 and the lower cooling box 2 is realized, and the purpose of controlling the temperature of the plate spring steel sheet 3 is achieved.
Fig. 2 is a feedback control loop diagram of the temperature of the water tank, the analyzer receives and processes the temperature signal of the temperature sensor and transmits the signal to the controller, and the controller controls the supply amount of the cooling liquid by controlling the opening degree of the proportional valve or the servo valve and the rotation speed of the circulating pump to reach a target temperature control value.
The device and the method for preparing the isolated plate spring steel sheet are characterized in that the one-way valve I10, the one-way valve II 11, the one-way valve III 12 and the one-way valve IV 13 are respectively connected with the water inlet connector I14, the water inlet connector II 15, the water outlet connector I16 and the water outlet connector II 17, and backflow of cooling liquid is prevented.
The device and the method for preparing the isolated plate spring steel sheet are characterized in that the upper cooling box 1 and the lower cooling box 2 can select materials such as water, oil and the like as condensing agents.
The device and the method for preparing the isolated plate spring steel sheet are characterized in that the temperature sensor I4 and the temperature sensor II 5 are respectively connected with the analyzer 18, and the analyzer 18 is connected with the controller 19 to realize temperature regulation and control.
The device and the method for preparing the isolated plate spring steel sheet are characterized in that the plate spring steel sheet 3 is attached by controlling the upper cooling box 1 and the lower cooling box 2, and the plate spring steel sheet 3 is controllably cooled by controlling the temperature of the upper cooling box 1 and the temperature of the lower cooling box 2.
The device and the method for preparing the isolated plate spring steel sheet are characterized in that the upper cooling box 1 and the lower cooling box 2 are made of good heat conducting materials, and heat can be rapidly transferred.
The device and the method for preparing the isolated plate spring steel sheet are characterized in that a proportional valve I8 and a proportional valve II 9 are respectively connected with an analyzer (18), the analyzer (18) is connected with a controller (19), and the temperature conversion efficiency of the plate spring steel sheet 3 can be effectively controlled by controlling the opening degree of the proportional valve.
When the spring steel enters a forming heat treatment stage, the specific working process is as follows:
step one, starting a circulating pump 6 and a circulating pump 7, and filling cooling liquid with a certain temperature in an upper cooling tank 1 and a lower cooling tank 2 of an isolated spring steel preparation device;
setting the temperature of the upper cooling box 1 as a ℃ and the temperature of the lower cooling box 2 as b ℃ (a ═ b or a ≠ b), and placing the flat spring steel sheet 3 between the upper cooling box 1 and the lower cooling box 2;
thirdly, controlling the water supply speed of a circulating pump I6 and a circulating pump II 7 and the opening degree of a proportional valve I8 and a proportional valve II 9 under the action of a controller 19, further controlling the temperature of the upper cooling box 1 and the temperature of the lower cooling box 2 to be kept unchanged at a set temperature, realizing the rapid cooling of the plate spring steel sheet 3 and forming a martensite structure;
and step four, opening the upper cooling box 1 and the lower cooling box 2, and taking out the plate spring steel sheet 3.
The present patent is not limited to the above-described embodiments, and various changes and modifications to the present patent are intended to be included within the scope of the claims and the equivalent technology of the present patent if they do not depart from the spirit and scope of the present patent.
Although more 1, upper cooling boxes are used herein; 2. a lower cooling tank; 3. a leaf spring steel sheet; 4. a temperature sensor I; 5. a temperature sensor II; 6. a circulating pump I; 7, a circulating pump II; 8. a proportional valve I; 9. a proportional valve II; 10. a one-way valve I; 11. a one-way valve II; 12. a one-way valve III; 13. a one-way valve IV; 14. a water inlet joint I; 15. a water inlet joint II; 16. a water outlet joint I; 17. a water outlet joint II; 18. an analyzer; 19. controller, etc., but does not exclude the possibility of other terms, which are used merely to describe and explain the nature of the invention and to interpret any additional limitation in contravention.
Claims (6)
1. An isolated plate spring steel sheet preparation device and a method are characterized by comprising an upper cooling box (1), a lower cooling box (2), a plate spring steel sheet (3), a temperature sensor I (4), a temperature sensor II (5), a circulating pump I (6), a circulating pump II (7), a proportional valve I (8), a proportional valve II (9), a one-way valve I (10), a one-way valve II (11), a one-way valve III (12), a one-way valve IV (13), a water inlet joint I (14), a water inlet joint II (15), a water outlet joint I (16), a water outlet joint II (17), an analyzer (18) and a controller (19); the upper cooling box (1) is connected with a water inlet connector I (14) and a water outlet connector I (16) respectively, a one-way valve I (10) is connected with the water inlet connector I (14), the water outlet connector I (16) is connected with a one-way valve III (12), a proportional valve I (8) is connected with the one-way valve I (10) to control the flow of cooling liquid, and a temperature sensor I (4) is arranged in the upper cooling box (1); the lower cooling box (2) is connected with a water inlet connector II (15) and a water outlet connector II (17) respectively, a one-way valve II (11) is connected with the water inlet connector II (15), the water outlet connector II (17) is connected with a one-way valve IV (13), a proportional valve II (9) is connected with the one-way valve II (11), and a temperature sensor II (5) is arranged in the lower cooling box (2); the analyzer (18) is connected with the controller (19), receives a temperature signal detected by the temperature sensor II (5), controls the opening degree of the proportional valve (8) and the opening degree of the proportional valve (9), the water supply speed of the circulating pump I (6) and the water supply speed of the circulating pump II (7) through the controller (19), realizes the temperature feedback adjustment of the upper cooling box (1) and the lower cooling box (2), and achieves the purpose of controlling the temperature of the plate spring steel sheet (3).
2. The device and the method for preparing the isolated plate spring steel plate as claimed in claim 1, wherein the one-way valve I (10), the one-way valve II (11), the one-way valve III (12) and the one-way valve IV (13) are respectively connected with a water inlet joint I (14), a water inlet joint II (15), a water outlet joint I (16) and a water outlet joint II (17).
3. The apparatus and method for manufacturing the isolated plate spring steel plate according to claim 1, wherein the upper cooling tank (1) and the lower cooling tank (2) may use quenching medium such as water, water-based compound, oil, etc. as a condensing agent.
4. The apparatus and method for manufacturing an isolated leaf spring steel sheet according to claim 1, wherein the temperature sensor I (4) and the temperature sensor II (5) are connected to an analyzer (18), respectively, and the analyzer (18) is connected to a controller (19).
5. The apparatus and method for manufacturing an isolated plate spring steel plate as claimed in claim 1, wherein the circulation pump I (6) is connected to the proportional valve I (8), the proportional valve I (8) is connected to the check valve I (10), the circulation pump II (7) is connected to the proportional valve II (9), and the proportional valve II (9) is connected to the check valve II (11).
6. The preparation method of the isolated plate spring steel sheet is characterized by comprising the following specific steps of:
starting a circulating pump I (6) and a circulating pump II (7), and filling cooling liquid with a certain temperature in an upper cooling tank (1) and a lower cooling tank (2) of an isolated spring steel preparation device;
setting the temperatures of the upper cooling box (1) and the lower cooling box (2), and placing the plate spring steel sheet (3) between the upper cooling box (1) and the lower cooling box (2);
thirdly, controlling the water supply speeds of the circulating pump (6) and the circulating pump (7) and the opening degrees of the proportional valve I (8) and the proportional valve II (9) under the action of the controller (19), further controlling the temperatures of the upper cooling box (1) and the lower cooling box (2) to be kept unchanged at a set temperature, realizing the rapid cooling of the plate spring steel sheet (3) and forming a martensite structure;
and step four, opening the upper cooling box (1) and the lower cooling box (2) and taking out the plate spring steel sheet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911099880.1A CN110846481A (en) | 2019-11-12 | 2019-11-12 | Device and method for preparing isolated plate spring steel sheet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911099880.1A CN110846481A (en) | 2019-11-12 | 2019-11-12 | Device and method for preparing isolated plate spring steel sheet |
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| CN110846481A true CN110846481A (en) | 2020-02-28 |
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| CN201911099880.1A Pending CN110846481A (en) | 2019-11-12 | 2019-11-12 | Device and method for preparing isolated plate spring steel sheet |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201553757U (en) * | 2009-09-21 | 2010-08-18 | 湖北大帆汽车零部件有限公司 | Quenching die of clutch diaphragm spring |
| CN104567172A (en) * | 2014-12-30 | 2015-04-29 | 徐州中矿大传动与自动化有限公司 | Intelligent water-cooling system with automatic adjustment capability |
| CN108994135A (en) * | 2018-07-11 | 2018-12-14 | 北京航星机器制造有限公司 | A kind of quenching integrated manufacturing process of hot forming |
| CN109182664A (en) * | 2018-09-30 | 2019-01-11 | 江苏利普机械有限公司 | A kind of the after-heat quenching device and its technique of forging |
| JP2019031724A (en) * | 2017-08-09 | 2019-02-28 | 中外炉工業株式会社 | Quenching device |
| CN209481737U (en) * | 2019-01-23 | 2019-10-11 | 武汉银海铜业有限公司 | A kind of copper pipe processing online annealing device |
-
2019
- 2019-11-12 CN CN201911099880.1A patent/CN110846481A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201553757U (en) * | 2009-09-21 | 2010-08-18 | 湖北大帆汽车零部件有限公司 | Quenching die of clutch diaphragm spring |
| CN104567172A (en) * | 2014-12-30 | 2015-04-29 | 徐州中矿大传动与自动化有限公司 | Intelligent water-cooling system with automatic adjustment capability |
| JP2019031724A (en) * | 2017-08-09 | 2019-02-28 | 中外炉工業株式会社 | Quenching device |
| CN108994135A (en) * | 2018-07-11 | 2018-12-14 | 北京航星机器制造有限公司 | A kind of quenching integrated manufacturing process of hot forming |
| CN109182664A (en) * | 2018-09-30 | 2019-01-11 | 江苏利普机械有限公司 | A kind of the after-heat quenching device and its technique of forging |
| CN209481737U (en) * | 2019-01-23 | 2019-10-11 | 武汉银海铜业有限公司 | A kind of copper pipe processing online annealing device |
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Application publication date: 20200228 |