CN113414239A - High-flux rolling heat treatment machine - Google Patents
High-flux rolling heat treatment machine Download PDFInfo
- Publication number
- CN113414239A CN113414239A CN202110697627.7A CN202110697627A CN113414239A CN 113414239 A CN113414239 A CN 113414239A CN 202110697627 A CN202110697627 A CN 202110697627A CN 113414239 A CN113414239 A CN 113414239A
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- China
- Prior art keywords
- rolling
- conveying system
- heat treatment
- treatment machine
- liquid nitrogen
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
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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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a high-flux rolling heat treatment machine which comprises an automatic material distribution part, a conveying system 1, an induction heating part, a preheating part, a roller system part, a conveying system 2, a liquid nitrogen cooling part, an automatic collection part and a touch screen control part. The invention is characterized in that the method carries out sequential continuous rolling on multi-station small samples, and integrates three generally separated links of 'pretreatment before heating', 'rolling' and 'treatment after cooling' into a set of automatic continuous processing system. Wherein, the heating pretreatment is carried out by utilizing electromagnetic induction to carry out rapid heating; the rolling can realize asynchronous rolling at different rotation rates by using two independent control motors; the cooling post-treatment is realized by utilizing a liquid nitrogen air injection device to carry out rapid cooling.
Description
Technical Field
The invention relates to pressure rolling of metal at room temperature or high temperature and cooling treatment after rolling, belongs to the field of rolling mills and heat treatment equipment, and particularly relates to a high-flux rolling heat treatment machine.
Background
At present, a rolling mill as metal pressure processing equipment is widely applied to laboratories of enterprises, production institutions and research schools. Most of the present time are large cold/hot rolling systems for single samples or small rolling systems in laboratories, the heating and cooling equipment are separate and less in the field of integrated equipment for micro rolling and heat treatment facing multi-station samples.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-flux rolling heat treatment machine; the invention is characterized in that the method carries out sequential continuous rolling on multi-station small samples, and integrates three generally separated links of 'pretreatment before heating', 'rolling' and 'treatment after cooling' into a set of automatic continuous processing system. Wherein, the heating pretreatment is carried out by utilizing electromagnetic induction to carry out rapid heating; the rolling can realize asynchronous rolling at different rotation rates by using two independent control motors; the cooling post-treatment is realized by utilizing a liquid nitrogen air injection device to carry out rapid cooling.
In order to achieve the purpose, the invention provides the following technical scheme:
a high throughput rolling heat treatment machine comprising:
the automatic material distributing part is provided with an electric push rod and is used for pushing different metal samples which are placed in advance in sequence;
the first conveying system is connected with the automatic material distributing part and is used for conveying different metal samples;
the induction heating part is arranged on the first conveying system and used for heating the conveyed different metal samples to a preset temperature;
the preheating part is arranged at the tail end of the first conveying system and used for preserving heat of the heated different metal samples and preventing the metal samples from being cooled after induction heating and before entering the roller;
the roller system part is connected with the first conveying system and is used for carrying out reciprocating motion on the heated different metal samples for multi-pass repeated rolling;
the second conveying system is connected with the roller system part and is used for conveying the rolled metal sample;
the liquid nitrogen cooling part is arranged on the second conveying system and is used for cooling the rolled metal sample;
and the automatic collecting part is arranged at the tail end of the second conveying system and is used for collecting the cooled metal sample.
Furthermore, the automatic material distribution part comprises a disc rotary sample injector and an electric push rod, and different metal sample blocks which are placed on the disc rotary sample injector in advance are pushed to the induction heating station through the first conveying system in sequence by the electric push rod.
Further, the induction heating part comprises an electromagnetic induction power supply, a movable heating coil and an infrared thermometer, the electromagnetic induction power supply is respectively connected with the movable heating coil and the infrared thermometer, the metal sample is rapidly heated to a preset temperature through the movable heating coil, and then the metal sample is conveyed to the inlet of the rolling mill through the first conveying system to be rolled.
Further, the induction heating part also comprises an induction power supply box, and the electromagnetic induction power supply, the movable heating coil and the infrared thermometer are arranged in the induction power supply box.
Furthermore, the preheating part is arranged at the position of a feed inlet of the roller system part, and mainly plays a role in heat preservation, so that the metal sample is prevented from being cooled after induction heating and before entering the roller.
Furthermore, the roller part comprises an upper roller and a lower roller which can adjust the vertical distance, so that the compression rolling is realized.
Furthermore, the upper roller and the lower roller are respectively controlled by two independent motors to rotate at different speeds, so that shearing force is formed, and the upper roller and the lower roller can reciprocate back and forth to perform multi-pass repeated rolling.
Further, the liquid nitrogen cooling part comprises a liquid nitrogen tank and a cooling box, the liquid nitrogen tank is connected with the cooling box through an air pump, the rolled metal sample is pushed into the cooling box through a second conveying system, and then the air pump blows the liquid nitrogen from the liquid nitrogen tank to the sample, so that the metal sample is rapidly cooled.
Further, the automatic collecting section includes a conveyor belt onto which the roll formed metal sample is pushed by a second conveyor system.
Further, the high-throughput rolling heat treatment machine also comprises a touch screen control part which integrates all circuit control parts, and parameters such as sample induction heating temperature, rolling reduction and pass can be set in the touch screen.
The invention has the following beneficial effects:
1. the invention has the technical characteristics that: the system is provided for high-throughput multi-station samples and automatically integrates rolling and pre-and post-heat treatment, so that samples with different components and rolling/heat treatment process parameters can be quickly inspected.
2. The rolling mill can carry out multi-pass back-and-forth rolling in the rolling process, and realizes asynchronous rolling under the shearing action by utilizing the difference of the rotation rates of the upper roller and the lower roller.
3. The induction heating coil is specially customized according to the requirement of the device, can rapidly heat the metal sample, and can ensure that the metal sample is not cooled before entering the roller.
4. The first conveying system and the second conveying system can ensure the reciprocating conveying on the metal sample conveying table, so that the metal sample can be rolled back and forth for multiple times.
5. The rolling system achieves the purpose that the metal sample is pressed to the required rolling thickness by adjusting the gap between the upper roller and the lower roller.
6. The high-flux rolling heat treatment machine has the advantages of compact structure, small occupied area, automatic control and convenient use; each control part adopts modularization, can be freely combined for selection, and provides a quick tool for the research of the metal rolling heat treatment process parameters.
Drawings
FIG. 1 is a schematic structural view of a high throughput rolling heat treatment machine according to the present invention;
FIG. 2 is a schematic structural diagram of a high-flux distribution system and a touch control screen;
FIG. 3 is a schematic diagram of a structure of an induction heating section;
FIG. 4 is a schematic view of the structure of the liquid nitrogen cooling section.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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 construed as limiting the present invention; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; 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 is characterized in that the method carries out sequential continuous rolling on multi-station small samples, and integrates three generally separated links of 'pretreatment before heating', 'rolling' and 'treatment after cooling' into a set of automatic continuous processing system. Wherein, the heating pretreatment is carried out by utilizing electromagnetic induction to carry out rapid heating; the rolling can realize asynchronous rolling at different rotation rates by using two independent control motors; the cooling post-treatment is realized by utilizing a liquid nitrogen air injection device to carry out rapid cooling.
It is worth noting that: the first transport system is transport system 1 and the second transport system is transport system 2.
As shown in fig. 1, a high throughput rolling heat treatment machine includes an automatic material distribution part, a conveying system 1, an induction heating part, a preheating part, a roll system part, a conveying system 2, a liquid nitrogen cooling part, an automatic collection part, and a touch screen control part.
In the present embodiment, the processor is provided with a hob for supporting and fixing the automatic material distributing part, the conveying system 1, the induction heating part, the preheating part, the roller system part, the conveying system 2, the liquid nitrogen cooling part, the automatic collecting part and the touch screen control part.
In this embodiment, the automatic material distributing part is provided with an electric push rod, and the electric push rod is used for pushing different metal samples which are placed in advance in sequence.
In the present embodiment, the conveying system 1 is connected to an automatic material distributing part for conveying different metal samples;
in the embodiment, the induction heating part is arranged on the conveying system 1 and is used for heating the conveyed different metal samples to a preset temperature;
in the embodiment, the preheating part is arranged at the tail end of the conveying system 1 and is used for preserving heat of the heated different metal samples and preventing the metal samples from being cooled after induction heating and before entering the roller;
in the embodiment, the rolling system part is connected with the conveying system 1 and is used for carrying out reciprocating motion and multi-pass repeated rolling on different heated metal samples;
in the present embodiment, the conveying system 2 is connected with a roller system part for conveying the rolled metal sample;
in the present embodiment, a liquid nitrogen cooling section is provided on the conveying system 2 for cooling the rolled metal sample;
in this embodiment, an automatic collecting section is provided at the end of the conveying system 2 for collecting the cooled metal sample.
In this embodiment, the touch screen control part integrates all the circuit control parts, and parameters such as the sample induction heating temperature, the rolling reduction amount and the pass can be set in the touch screen.
Preferably, as shown in fig. 2, the automatic material distribution part comprises a disk rotary sample injector, the disk rotary sample injector is provided with 32 stations for placing metal samples, and different metal sample blocks placed in advance on the disk rotary sample injector are sequentially pushed to the induction heating station through the conveying system 1 by an electric push rod.
Preferably, as shown in fig. 3, the induction heating section includes an electromagnetic induction power supply, a movable heating coil, and an infrared thermometer, the electromagnetic induction power supply being connected to the movable heating coil and the infrared thermometer, respectively, and the metal sample is rapidly heated to a preset temperature by the movable heating coil and then conveyed to the inlet of the rolling mill for rolling by the conveyor system 1.
Preferably, the induction heating part further comprises an induction power supply box, and the electromagnetic induction power supply, the movable heating coil and the infrared thermometer are arranged in the induction power supply box.
Preferably, the preheating part is arranged at the position of a feed inlet of the roller system part and mainly plays a role in heat preservation and prevents the metal sample from being cooled down after induction heating and before entering the roller.
Preferably, the roller part comprises an upper roller and a lower roller with adjustable upper and lower spacing, and the compression lower rolling is realized. The upper and lower rollers are controlled by two independent motors to form shearing force and can reciprocate back and forth to perform multi-pass repeated rolling.
Preferably, as shown in fig. 4, the liquid nitrogen cooling part includes a liquid nitrogen tank and a cooling box, the liquid nitrogen tank is connected with the cooling box through an air pump, the rolled metal sample is pushed into the cooling box through the second conveying system, and then the air pump blows liquid nitrogen from the liquid nitrogen tank to the sample, so that the metal sample is rapidly cooled.
Preferably, the automated collection section comprises a conveyor belt onto which the roll formed metal samples are pushed by the second conveyor system.
Preferably, the touch screen control part is respectively connected with the conveying system 1, the induction heating part, the preheating part, the roller system part, the conveying system 2, the liquid nitrogen cooling part and the automatic collecting part.
The working principle is as follows: when the automatic material distributing device works, 32 metal samples are placed on the disc rotary sample injector of the automatic material distributing part and pushed to a heating position through the electric push rod; rapidly heating a metal sample by an induction heating section; after the metal sample is heated, the metal sample is pushed to a rolling mill port through a preheating part by a conveying system 1; the metal sample is brought into a rolling opening through the self rotation of the roller for rolling; after rolling through a rolling mill, the metal sample is taken out by a roller and is pushed to a cooling box through a conveying system 2; the metal sample is pushed into a cooling box, and liquid nitrogen of a liquid nitrogen tank is sprayed into the cooling box, so that the metal sample is rapidly cooled; after the metal sample is cooled, the metal sample is pushed by the conveying system 2, and the metal sample can slide out of the cooling box and fall into the collection platform to complete a rolling process; the touch screen control part: the whole rolling process is controlled by a touch screen, and various parameters are set). And after rolling is finished, observing and analyzing the microstructure of a rolled sample, and measuring the mechanical property of the material.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. A high throughput rolling heat treatment machine, comprising:
the automatic material distributing part is provided with an electric push rod and is used for pushing different metal samples which are placed in advance in sequence;
the first conveying system is connected with the automatic material distributing part and is used for conveying different metal samples;
the induction heating part is arranged on the first conveying system and used for heating the conveyed different metal samples to a preset temperature;
the preheating part is arranged at the tail end of the first conveying system and used for preserving heat of the heated different metal samples and preventing the metal samples from being cooled after induction heating and before entering the roller;
the roller system part is connected with the first conveying system and is used for carrying out reciprocating motion on the heated different metal samples for multi-pass repeated rolling;
the second conveying system is connected with the roller system part and is used for conveying the rolled metal sample;
the liquid nitrogen cooling part is arranged on the second conveying system and is used for cooling the rolled metal sample;
and the automatic collecting part is arranged at the tail end of the second conveying system and is used for collecting the cooled metal sample.
2. The high throughput rolling thermal processor according to claim 1, wherein the automatic material distributing part comprises a disk rotary injector and an electric push rod, and different metal sample blocks previously placed on the disk rotary injector are sequentially pushed to the induction heating station by the electric push rod through the first conveying system.
3. The high throughput rolling heat treatment machine according to claim 1, wherein the induction heating section includes an electromagnetic induction power supply, a movable heating coil and an infrared thermometer, the electromagnetic induction power supply being connected to the movable heating coil and the infrared thermometer, respectively, and the metal sample is rapidly heated to a preset temperature by the movable heating coil and then conveyed to the inlet of the rolling mill for rolling by the first conveying system.
4. The high throughput rolling heat treatment machine according to claim 3, wherein the induction heating section further comprises an induction power supply box, and the electromagnetic induction power supply, the movable heating coil and the infrared thermometer are disposed in the induction power supply box.
5. The high throughput rolling heat treatment machine according to claim 1, wherein said preheating section is disposed at a feed inlet of the roll system section, and mainly serves to keep warm and prevent the temperature of the metal sample from being lowered and cooled after the induction heating and before the metal sample enters the rolls.
6. The high throughput rolling heat treatment machine in accordance with claim 1, wherein said roller section comprises upper and lower rollers of adjustable upper and lower intervals to perform the compression lower rolling.
7. The high throughput rolling heat treatment machine according to claim 6, wherein the upper and lower rolls are respectively controlled by two independent motors to generate a shearing force and are reciprocally moved to perform a multi-pass rolling repeatedly.
8. The high throughput rolling heat treatment machine according to claim 1, wherein the liquid nitrogen cooling part comprises a liquid nitrogen tank and a cooling box, the liquid nitrogen tank is connected with the cooling box through an air pump, the rolled metal sample is pushed into the cooling box through the second conveying system, and then the air pump blows liquid nitrogen from the liquid nitrogen tank to the sample, so that the metal sample is rapidly cooled.
9. A high throughput rolling heat treatment machine according to claim 1, wherein said automatic collection section comprises a conveyor belt onto which the roll formed metal samples are pushed by the second conveyor system.
10. The high-throughput rolling heat treatment machine according to claim 1, further comprising a touch screen control part integrating all circuit control parts, wherein parameters such as sample induction heating temperature and rolling reduction and pass can be set in the touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110697627.7A CN113414239A (en) | 2021-06-23 | 2021-06-23 | High-flux rolling heat treatment machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110697627.7A CN113414239A (en) | 2021-06-23 | 2021-06-23 | High-flux rolling heat treatment machine |
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| CN113414239A true CN113414239A (en) | 2021-09-21 |
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| CN202110697627.7A Pending CN113414239A (en) | 2021-06-23 | 2021-06-23 | High-flux rolling heat treatment machine |
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Citations (9)
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| CN101362147A (en) * | 2008-09-12 | 2009-02-11 | 武汉钢铁(集团)公司 | Rolling and cooling controlled hot-rolling test rolling mill |
| CN102059250A (en) * | 2010-11-09 | 2011-05-18 | 燕山大学 | Electro-plastic two-roll mill of low-temperature liquid nitrogen cooling medium |
| CN107838192A (en) * | 2017-11-23 | 2018-03-27 | 鹤山市顺亿达铜业制品有限公司 | A kind of automatic hot-rolling arrangement of copper coin |
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2021
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| CN211803066U (en) * | 2019-10-22 | 2020-10-30 | 河北天柱钢铁集团有限公司 | Aluminum-containing low-temperature-resistant hot-rolled H-shaped steel rolling equipment |
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