CN116358300A - Aluminium bar induction heating furnace - Google Patents
Aluminium bar induction heating furnace Download PDFInfo
- Publication number
- CN116358300A CN116358300A CN202310405017.4A CN202310405017A CN116358300A CN 116358300 A CN116358300 A CN 116358300A CN 202310405017 A CN202310405017 A CN 202310405017A CN 116358300 A CN116358300 A CN 116358300A
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- China
- Prior art keywords
- furnace body
- temperature measuring
- aluminum bar
- side temperature
- aluminum
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 108
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 108
- 230000006698 induction Effects 0.000 title claims abstract description 48
- 238000010438 heat treatment Methods 0.000 title claims abstract description 37
- 239000004411 aluminium Substances 0.000 title claims description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 238000001125 extrusion Methods 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 description 5
- 238000009529 body temperature measurement Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/06—Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Induction Heating (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention discloses an aluminum bar induction heating furnace which is used for heating an aluminum bar before extrusion and comprises a furnace body, wherein the furnace body is used for accommodating the aluminum bar to be heated, and the inside of the furnace body is of a hollow cylindrical structure; the induction coil is externally connected with a power supply to heat the aluminum bar and is circumferentially arranged on the inner wall of the furnace body; the side temperature measuring mechanisms are used for detecting the side temperature of the aluminum bar, and a plurality of side temperature measuring mechanisms are uniformly arranged on one side of the furnace body along the axis direction of the furnace body; and the control device is in signal connection with the side temperature measuring mechanism and the power supply, and is used for receiving detection data of the side temperature measuring mechanism and controlling the power supply to supply electric energy to the induction coil according to the detection data. The aluminum bar extrusion forming device can effectively control the heating temperature gradient of the aluminum bar, and further improve the extrusion forming quality of the aluminum bar.
Description
Technical Field
The invention relates to the technical field of aluminum profile processing and production, in particular to an aluminum bar induction heating furnace.
Background
The aluminum bar induction heating furnace is mainly used for continuous and uniform diathermy before aluminum bar forging and extrusion. Because the faster the extrusion speed of the metal is, the larger the temperature rise of the metal is, in order to control the temperature rise, the temperature gradient of the aluminum bar is required to be controlled to be higher before and lower after the aluminum bar is displayed, so that phenomena of drawing rot and the like caused by overtemperature of the aluminum product in the second half section of extrusion are avoided. At present, an aluminum bar induction heating furnace adopts a single-zone multi-ingot furnace structure, a plurality of aluminum bars can be placed in the induction furnace at one time, the aluminum bar can only be heated to realize end face detection temperature, zonal control cannot be realized, the temperature gradient of the aluminum bar from front to back is uncontrollable, the deviation is large, and the extrusion molding quality of the aluminum bar is poor.
In summary, how to provide an aluminum bar induction heating furnace, which can effectively control the heating temperature gradient of the aluminum bar to improve the extrusion quality of the aluminum bar is a problem to be solved by those skilled in the art.
Disclosure of Invention
Therefore, the invention aims to provide the aluminum bar induction heating furnace which can effectively control the heating temperature gradient of the aluminum bar so as to improve the extrusion molding quality of the aluminum bar.
In order to achieve the above object, the present invention provides the following technical solutions:
an aluminum bar induction heating furnace for heating an aluminum bar before extrusion, comprising:
the furnace body is used for accommodating the aluminum bars to be heated, and the inside of the furnace body is of a hollow cylindrical structure;
the induction coil is externally connected with a power supply to heat the aluminum bar, and the induction coil is circumferentially arranged on the inner wall of the furnace body;
the side temperature measuring mechanisms are used for detecting the side temperature of the aluminum bar, and a plurality of the side temperature measuring mechanisms are uniformly arranged on one side of the furnace body along the axis direction of the furnace body;
and the control device is in signal connection with the side temperature measuring mechanism and the power supply and is used for receiving detection data of the side temperature measuring mechanism and controlling the power supply to supply electric energy to the induction coil according to the detection data.
Preferably, the side temperature measuring mechanism comprises a thermocouple and a driving cylinder, wherein the thermocouple is connected with a piston rod of the driving cylinder through a supporting plate so as to drive the thermocouple to penetrate through the furnace body and contact with the side surface of the aluminum rod.
Preferably, the piston rod and the thermocouple are perpendicular to the axis of the furnace body.
Preferably, the side temperature measuring mechanism further comprises a plurality of guide rods and a first guide plate, wherein the first guide plate is movably arranged on the driving cylinder, and the guide rods are uniformly connected between the first guide plate and the supporting plate.
Preferably, the side temperature measuring mechanism further comprises a second guide plate, the second guide plate is sleeved on the cylinder body of the driving cylinder, the first guide plate is sleeved on the piston rod of the driving cylinder, a plurality of guide rods are uniformly arranged on the outer side of the driving cylinder in a surrounding mode, and one ends of the guide rods are connected to the second guide plate.
Preferably, the aluminum rod furnace further comprises an end face temperature measuring mechanism, wherein the end face temperature measuring mechanism is used for detecting the end face temperature of the aluminum rod, is arranged in the furnace body, and is close to the end part of the furnace body.
Preferably, openings are formed in two ends of the furnace body, and the openings are flush with the induction coil.
Compared with the background art, when the aluminum rod induction heating furnace provided by the invention is used, one aluminum rod to be heated is placed in the furnace body, the aluminum rod is arranged along the axis direction of the furnace body, the power supply supplies electric energy to the induction coil, the induction coil heats the aluminum rod, in the process of heating the aluminum rod, the plurality of side temperature measuring mechanisms are uniformly distributed on one side of the furnace body along the axis direction of the furnace body, correspondingly, the plurality of side temperature measuring mechanisms carry out temperature detection on the side surface of the aluminum rod from the front end to the rear end of the aluminum rod in a partition mode, side temperature data signals of different areas of the aluminum rod are transmitted to the control device, and the control device controls the electric energy supplied by the power supply to the induction coils of the corresponding areas according to the acquired side temperature data of the side surfaces of each area of the aluminum rod so as to realize the partition heating of the aluminum rod according to the detection temperature of each side temperature measuring mechanism, thereby realizing the high front end temperature and low rear end temperature of the aluminum rod and stepwise decreasing, and further improving the extrusion molding quality of the aluminum rod.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an aluminum bar induction heating furnace provided by the invention;
FIG. 2 is a schematic diagram of a side temperature measuring mechanism in an aluminum bar induction heating furnace;
fig. 3 is a front view of a side temperature measuring mechanism in an aluminum bar induction heating furnace.
In fig. 1 to 3, reference numerals include:
1 is a furnace body, 2 is a side temperature measuring mechanism, 3 is an induction coil, 4 is an aluminum bar, and 5 is an end surface temperature measuring mechanism;
the thermocouple 21, the driving cylinder 22, the piston rod 23, the supporting plate 24, the first guide plate 25, the second guide plate 26, the guide rod 27, the cylinder seat 28 and the base 29.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides an aluminum bar induction heating furnace which can effectively control the heating temperature gradient of an aluminum bar so as to improve the extrusion molding quality of the aluminum bar.
Referring to fig. 1 to 3, the present embodiment provides an aluminum bar induction heating furnace for heating an aluminum bar 4 before extrusion, which comprises a furnace body 1 for accommodating the aluminum bar 4 to be heated, an induction coil 3 for externally connecting a power supply to heat the aluminum bar 4, a side temperature measuring mechanism 2 for detecting the side temperature of the aluminum bar 4, and a control device.
The inside of furnace body 1 is hollow tubular structure, is used for holding an aluminium bar 4 that waits to heat in this furnace body 1, and induction coil 3 encircles the inner wall of locating furnace body 1, and one side of furnace body 1 is evenly located along the furnace body axis direction to a plurality of side temperature measuring mechanism 2.
The control device is connected to the side temperature measuring mechanism 2 and the power supply in a signal manner, and is used for receiving detection data of the side temperature measuring mechanism 2 and controlling the power supply to supply electric energy to the induction coil 3 according to the detection data.
The induction coil 3 is often externally connected with an intermediate frequency power supply, the intermediate frequency power supply supplies alternating current to the induction coil 3, and the alternating current flowing through the induction coil 3 generates an alternating magnetic field passing through the aluminum rod 4, and the magnetic field causes the aluminum rod 4 to generate eddy currents for heating.
The side temperature measuring mechanisms 2 comprise thermocouples 21 and driving cylinders 22, wherein the thermocouples 21 are connected with piston rods 23 of the driving cylinders 22 through supporting plates 24 so as to drive the thermocouples 21 to penetrate through the furnace body 1 and contact with the side surfaces of the aluminum bars 4, so that the thermocouples 21 on each side temperature measuring mechanism 2 are fully contacted with the corresponding side surfaces of the aluminum bars 4, and the side temperature measuring accuracy of the aluminum bars 4 from the front end to the rear end is ensured.
In addition, the piston rod 23 of the driving cylinder 22 and the thermocouple 21 are perpendicular to the axis of the furnace body, the first guide plate 25 is fixedly connected with the piston rod 23 of the driving cylinder 22, and a plurality of guide rods 27 are uniformly connected between the first guide plate 25 and the support plate 24. Therefore, the driving cylinder 22 cooperates with the guide rods 27 when pushing the thermocouple 21 to the side surface of the aluminum rod 4, so that the thermocouple 21 is always perpendicular to the axis of the furnace body, the thermocouple 21 is ensured to penetrate through the furnace body 1 and completely contact with the aluminum rod 4, meanwhile, the stability of the thermocouple 21 in the pushing process is ensured, and the thermocouple 21 is prevented from shifting or falling to reduce the temperature detection efficiency.
Optionally, the side temperature measuring mechanism 2 further includes a second guide plate 26, the second guide plate 26 is sleeved on the cylinder body of the driving cylinder 22, the first guide plate 25 is sleeved on the piston rod 23 of the driving cylinder 22, the plurality of guide rods 27 are uniformly surrounded on the outer side of the driving cylinder 22, one ends of the plurality of guide rods 27 are connected to the second guide plate 26, and the other ends of the plurality of guide rods 27 are connected to the supporting plate 24 in a penetrating manner. Therefore, in the process of pushing the thermocouple 21 to the side surface of the aluminum bar 4, the driving cylinder 22 moves the first guide plate 25 along the piston rod 23, the second guide plate 26 moves along the cylinder body, and the thermocouples 21 connected with the plurality of guide rods 27 through the supporting plates 24 move more stably under the synergistic effect of the first guide plate 25 and the second guide plate 26, so that the thermocouples 21 penetrate through the furnace body 1 and are in full contact with the aluminum bar 4; in addition, the guide rods 27 are uniformly arranged on the outer side of the driving cylinder 22 in a surrounding manner, so that the whole volume of the side temperature measuring mechanism 2 can be reduced.
The end of the driving cylinder 22 is fixedly provided with a cylinder block 28, and the cylinder block 28 is stably fixed on one side of the furnace body 1 through a base 29; in addition, the inlet that is close to furnace body 1 is equipped with the feed mechanism who is used for carrying aluminium bar 4 to the furnace body 1 in, and the outlet that is close to furnace body 1 is equipped with the discharge mechanism who is used for carrying aluminium bar 4 to the outside of furnace body 1.
To sum up, this application is when using, feeding mechanism carries aluminium bar 4 to furnace body 1 in, only place an aluminium bar 4 waiting to heat in the furnace body 1, and aluminium bar 4 sets up along furnace body axis direction, at this moment, the actuating cylinder 22 on each side temperature measurement mechanism 2 promotes thermocouple 21 and wears to establish furnace body 1 and fully contacts with aluminium bar 4 side, the power provides electric energy for induction coil 3, induction coil 3 heats aluminium bar 4, in the in-process of heating aluminium bar 4, a plurality of side temperature measurement mechanism 2 is in one side of furnace body 1 along furnace body axis direction evenly distributed, accordingly, a plurality of side temperature measurement mechanism 2 carries out temperature detection to aluminium bar 4's side from aluminium bar 4 front end to the rear end subregion, and with aluminium bar 4 different zone's side temperature data signal transmission in controlling means, controlling means is according to the electric energy that each side temperature data control power supply of aluminium bar 4 district side to the induction coil 3 of corresponding zone, in order to realize according to each side temperature measurement mechanism 2 detection temperature is to aluminium bar 4 subregion heating, thereby realize that aluminium bar 4's front end temperature is high, rear end temperature is low and step-by step, and the extrusion quality gradient shaping aluminium bar 4 effectively increases.
On the basis of the embodiment, the aluminum rod aluminum alloy furnace further comprises an end face temperature measuring mechanism 5 for detecting the end face temperature of the aluminum rod 4, wherein the end face temperature measuring mechanism 5 is arranged in the furnace body 1 and is close to the end part of the furnace body 1.
Specifically, the end face temperature measuring mechanism 5 is firstly arranged in the furnace body 1 and is arranged close to the outlet of the end part of the furnace body 1, the feeding mechanism conveys the aluminum rod 4 into the furnace body 1, the aluminum rod 4 is guaranteed to be fully contacted with the end face temperature measuring mechanism 5, the end face temperature measuring mechanism 5 can be connected with the control device through signals, so that the end face temperature of the aluminum rod 4 is detected, an end face temperature data signal is transmitted to the control device, whether the inside of the aluminum rod 4 reaches the extrusion temperature of a compliance or not is monitored, the temperature is detected by combining a plurality of side face temperature measuring mechanisms 2, the aluminum rod 4 reaches an ideal gradient heating state, and the extrusion molding quality of the aluminum rod 4 is improved. It should be noted that, the end face temperature measuring mechanism 5 may refer to the prior art, and the specific structural form is not described herein.
Optionally, the front end of the furnace body 1 is provided with an outlet, the rear end is provided with an inlet, and the outlet and the inlet are all level with the induction coil 3, so that the front end and the rear end of the aluminum rod 4 positioned in the furnace body 1 are heated uniformly.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The aluminum bar induction heating furnace provided by the invention is described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (7)
1. An aluminium bar induction heating furnace for heating before aluminium bar extrusion, its characterized in that includes:
the furnace body is used for accommodating the aluminum bars to be heated, and the inside of the furnace body is of a hollow cylindrical structure;
the induction coil is externally connected with a power supply to heat the aluminum bar, and the induction coil is circumferentially arranged on the inner wall of the furnace body;
the side temperature measuring mechanisms are used for detecting the side temperature of the aluminum bar, and a plurality of the side temperature measuring mechanisms are uniformly arranged on one side of the furnace body along the axis direction of the furnace body;
and the control device is in signal connection with the side temperature measuring mechanism and the power supply and is used for receiving detection data of the side temperature measuring mechanism and controlling the power supply to supply electric energy to the induction coil according to the detection data.
2. The aluminum bar induction heating furnace according to claim 1, wherein the side temperature measuring mechanism comprises a thermocouple and a driving cylinder, and the thermocouple is connected with a piston rod of the driving cylinder through a supporting plate so as to drive the thermocouple to penetrate through the furnace body and contact with the side surface of the aluminum bar.
3. The aluminum bar induction heating furnace of claim 2 wherein said piston rod and said thermocouple are both perpendicular to said furnace axis.
4. The aluminum bar induction heating furnace according to claim 3, wherein the side temperature measuring mechanism further comprises a plurality of guide rods and a first guide plate, the first guide plate is movably arranged on the driving cylinder, and the plurality of guide rods are uniformly connected between the first guide plate and the supporting plate.
5. The aluminum bar induction heating furnace according to claim 4, wherein the side temperature measuring mechanism further comprises a second guide plate, the second guide plate is sleeved on the cylinder body of the driving cylinder, the first guide plate is sleeved on the piston rod of the driving cylinder, a plurality of guide rods are uniformly arranged on the outer side of the driving cylinder in a surrounding mode, and one ends of the guide rods are connected with the second guide plate.
6. The aluminum bar induction heating furnace of any one of claims 1 to 5, further comprising an end face temperature measuring mechanism for detecting an end face temperature of the aluminum bar, the end face temperature measuring mechanism being provided in the furnace body and being provided near an end portion of the furnace body.
7. An aluminium bar induction heating furnace according to any one of claims 1 to 5, wherein openings are provided at both ends of the furnace body, and wherein the openings are flush with the induction coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310405017.4A CN116358300A (en) | 2023-04-17 | 2023-04-17 | Aluminium bar induction heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310405017.4A CN116358300A (en) | 2023-04-17 | 2023-04-17 | Aluminium bar induction heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116358300A true CN116358300A (en) | 2023-06-30 |
Family
ID=86933405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310405017.4A Pending CN116358300A (en) | 2023-04-17 | 2023-04-17 | Aluminium bar induction heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116358300A (en) |
-
2023
- 2023-04-17 CN CN202310405017.4A patent/CN116358300A/en active Pending
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