CN110938735A - Intermediate frequency induction heating device for conical barrel-shaped part - Google Patents
Intermediate frequency induction heating device for conical barrel-shaped part Download PDFInfo
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- CN110938735A CN110938735A CN201911015046.XA CN201911015046A CN110938735A CN 110938735 A CN110938735 A CN 110938735A CN 201911015046 A CN201911015046 A CN 201911015046A CN 110938735 A CN110938735 A CN 110938735A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 104
- 230000006698 induction Effects 0.000 title claims abstract description 67
- 239000000498 cooling water Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000004321 preservation Methods 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 abstract description 10
- 230000000171 quenching effect Effects 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000005261 decarburization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000007917 intracranial administration Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
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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
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
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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
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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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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- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Tunnel Furnaces (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a medium-frequency induction heating device for a cone-shaped part, which comprises a conveying mechanism, a heating furnace body, a heating system and a cooling water circulation system, wherein the conveying mechanism comprises an arc-shaped guide rail and a material pushing cylinder arranged at one end of the guide rail; the heating furnace body is sequentially provided with a furnace outer body, a furnace body annular hole and a furnace lining from outside to inside, and an arc-shaped material channel for placing an arc-shaped guide rail is formed through an encephalic lining; the heating system comprises a rapid heating area, a slow heating area, a heat preservation area and a supplementary heating area which are arranged inside the annular hole of the furnace body in sequence and close to the conveying mechanism, wherein a first combined inductor is arranged in the rapid heating area, a second combined inductor is arranged in the slow heating area, and a third combined inductor is arranged in the heat preservation area. Compared with the prior art, the invention can effectively heat the conical barrel-shaped part, not only ensures the quenching and heating uniformity, but also can meet the performance requirements of the product after heat treatment, and improves the production efficiency.
Description
Technical Field
The invention relates to the technical field of part heating treatment, in particular to a medium-frequency induction heating device for a cone-shaped part.
Background
In the production process of a company, a conical barrel-shaped combined part is provided, the appearance and the inner hole are formed by combining a cylinder and a cone, the part is quenched and heated mostly by adopting a periodic resistance furnace or a continuous push rod furnace and the like according to the traditional heat treatment heating mode, the heating mode has low efficiency (long time), large energy consumption and serious part oxidation and decarburization. In order to improve the product quality and the production efficiency and reduce the energy consumption, a part is quenched and heated by adopting a medium-frequency induction diathermanous heating technology, the inner appearance of the part is formed by combining a cylinder and a cone, the diameter of a conical part is smaller than that of the cylinder, and the conical part is far away from an induction heating coil, so that the temperature of the conical part of the part is low (uneven heating) and the mechanical property of the conical part of the part after heat treatment cannot meet the requirement specified by a product drawing.
In order to solve the problem of uniformity of quenching heating temperature of the parts, the medium-frequency induction heating method and the medium-frequency induction heating device are designed and manufactured, so that the quenching heating uniformity of the conical-barrel-shaped combined parts is completely solved, the performance of the products after heat treatment is ensured, and the production efficiency is improved.
Disclosure of Invention
In order to solve the defects, the invention aims to provide the intermediate frequency induction heating device for the conical barrel-shaped part, which can effectively heat the conical barrel-shaped part, not only ensures the quenching and heating uniformity, but also can meet the performance requirements of the product after heat treatment and improve the production efficiency.
In order to achieve the purpose, the invention adopts the technical scheme that: a medium-frequency induction heating device for cone-shaped parts comprises a conveying mechanism, a heating furnace body, a heating system and a cooling water circulating system, wherein the conveying mechanism comprises an arc-shaped guide rail and a material pushing cylinder arranged at one end of the guide rail; the heating furnace body is sequentially provided with a furnace outer body, a furnace body annular hole and a furnace lining from outside to inside, and an arc-shaped material channel for placing an arc-shaped guide rail is formed through an encephalic lining; the heating system comprises a rapid heating area, a slow heating area, a heat preservation area and a supplementary heating area which are arranged inside the annular hole of the furnace body in sequence close to the conveying mechanism, the rapid heating area is provided with a first combined inductor, the slow heating area is provided with a second combined inductor, the heat preservation area is provided with a third combined inductor, the supplementary heating area is provided with a fourth combined inductor, the combined inductors comprise induction coil groups with different numbers, each induction coil group forms a loop by being connected with a capacitor, and the medium-frequency power supply realizes the functions of rectification triggering, regulation, inversion and starting calculation through the heating of the capacitor to the induction coil; the cooling water circulation system comprises a cooling water source and a cooling water pipe connected with the cooling water source, cooling water is filled in the induction coils, and adjacent induction coil groups are connected through the cooling water pipe.
Furthermore, a pressing plate is arranged between the top of the furnace body and the annular hole of the furnace body, a bottom plate is arranged between the bottom of the furnace body and the annular hole of the furnace body, and the top of the furnace body, the pressing plate and the bottom plate are tightened through a long screw rod.
The bottom plate, the pressure plate and the furnace lining are all made of aluminum silicate refractory fibers.
The intermediate frequency power supply adopts a silicon controlled intermediate frequency power supply.
And one end of the heating furnace body, which is far away from the material pushing mechanism, is provided with a furnace door for discharging the parts.
And adjacent induction coil groups of the cooling water pipe are fixed through a connecting plate and a bolt.
The invention enables the conical barrel-shaped parts to be quickly heated in the heating furnace body through the first combined inductor with higher power, slowly heated through the second combined inductor with moderate power, the third combined inductor in the uniform temperature zone formed by utilizing the heat conduction effect enables the temperature of each part to be uniform, and the temperature of the parts reaches the quenching temperature required by the process through the fourth combined inductor for supplementary heating.
The invention adopts a silicon controlled intermediate frequency power supply to heat the parts by an intermediate frequency induction diathermanous heating technology, and utilizes the special distribution of induction coils in a heating furnace body (heating coils with different intervals and different turns and special arrangement) to achieve that the cone-shaped parts obtain different heating powers at different positions in the furnace body, namely a rapid heating zone, a slow heating zone, a uniform temperature zone, a supplementary heating zone and the like are formed in the heating furnace body so as to achieve the specified quenching temperature of the parts at a discharge port of the furnace body and the uniform heating of the parts.
The intermediate frequency power supply adopted in the invention realizes the functions of rectification triggering, regulation, inversion and starting calculation through the heating of the capacitor to the induction coil so as to achieve the power and frequency required by heating parts; an arc-shaped material channel formed by the intracranial lining ensures that the part and the induction heating coil are in reasonable relative positions and enables the material pushing mechanism to push the part out of the furnace body smoothly; the group of induction coils and the cooling water pipe are used for completing the diathermy heating of the parts and the cooling of the induction coils; the material pushing cylinder sends the parts into the furnace according to a certain feeding beat and pushes the heated parts out of the furnace body for quenching.
Compared with the prior art, the invention can effectively heat the conical barrel-shaped part, not only ensures the quenching and heating uniformity, but also can meet the performance requirement of the product after heat treatment, can continuously produce and improve the production efficiency; the operation is convenient and accurate, and the product quality is ensured.
Drawings
The structure and features of the present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure in the direction of a-a in fig. 1.
Fig. 3 is a schematic diagram of the induction coils combined together.
Fig. 4 is a schematic structural view of a cone-barrel shaped part.
In the accompanying drawings 1-4, 1 is a silicon controlled intermediate frequency power supply, 2 is a capacitor, 3 is an arc-shaped guide rail, 4 is a material pushing cylinder, 5 is a workpiece, 6 is a first combined inductor, 7 is a second combined inductor, 8 is a third combined inductor, 9 is a fourth combined inductor, 10 is a furnace door, 11 is a bottom plate, 12 is a furnace outer body, 13 is a long screw rod, 14 is a pressing plate, 15 is a furnace inner liner, 16 is a fastener, 17 is a cone-shaped barrel part, 18 is a first induction coil, 19 is a second induction coil, 20 is a third induction coil, 21 is a fourth induction coil, 22 is a fifth induction coil, 23 is a sixth induction coil, 24 is a seventh induction coil, 25 is an eighth induction coil, 26 is a ninth induction coil, 27 is a cooling water pipe, 28 is cooling water, 29 is a connecting plate, and 30 is a furnace body annular hole.
Detailed Description
Referring to the accompanying drawings, fig. 1-3 show an embodiment of the invention, which discloses a medium-frequency induction heating device for cone-shaped parts, comprising a conveying mechanism, a heating furnace body, a heating system and a cooling water circulation system, wherein the conveying mechanism comprises an arc-shaped guide rail 3 and a material pushing cylinder 4 arranged at one end of the arc-shaped guide rail 3; the heating furnace body is sequentially provided with a furnace outer body 12, a furnace body annular hole 30 and a furnace lining 15 from outside to inside, and an arc-shaped material channel for placing the arc-shaped guide rail 3 is formed by the skull lining 15; the heating system comprises a rapid heating area, a slow heating area, a heat preservation area and a supplementary heating area which are arranged inside the furnace body annular hole 30 in sequence close to the conveying mechanism, the rapid heating area is provided with a first combined inductor 6, the slow heating area is provided with a second combined inductor 7, the heat preservation area is provided with a third combined inductor 8, the supplementary heating area is provided with a fourth combined inductor 9, the combined inductors comprise induction coil groups with different numbers, each induction coil forms a loop by being connected with a capacitor 2, and the silicon controlled intermediate frequency power supply 1 heats the induction coils through the capacitor 2 to realize functions of rectification triggering, regulation, inversion and starting calculation; the cooling water circulation system comprises a cooling water source and a cooling water pipe 27 connected with the cooling water source, cooling water is filled in the induction coils, and adjacent induction coil groups are connected through the cooling water pipe 27.
Furthermore, a pressing plate 14 is arranged between the top of the furnace body 12 and the furnace body annular hole 30, a bottom plate 11 is arranged between the bottom of the furnace body 12 and the furnace body annular hole 30, and the top of the furnace body 12, the pressing plate 14 and the bottom plate 11 are tightened through a long screw 13.
The bottom plate 11, the pressure plate 14 and the furnace lining 15 are all made of aluminum silicate refractory fibers, and the aluminum silicate refractory fibers have a good refractory effect and meet the heating requirement.
And one end of the heating furnace body, which is far away from the material pushing mechanism, is provided with a furnace door 10 for discharging the parts.
And adjacent induction coil groups of the cooling water pipe 27 are fixed through a connecting plate 29 and a bolt.
The silicon controlled intermediate frequency power supply and the capacitor are used for obtaining power and frequency required by induction heating and have the function of adjusting power; the arc guide rail, the furnace lining, the bottom plate, the pressing plate, the long screw, the furnace outer body and the furnace door form a furnace body of the medium-frequency induction heating device, the arc guide rail is arranged in the arc material channel, and each combined inductor is arranged in a ring hole of the furnace body, so that a heated part and an induction coil are in fixed positions, and a material pushing cylinder is ensured to push a workpiece out of the furnace body smoothly; the furnace lining, the bottom plate, the pressing plate and the long screw rod enable the induction coil and the parts to be in correct positions and play a role in heat preservation; the material pushing cylinder is used for pushing the heated workpiece out of the furnace body according to a certain beat to finish the quenching of the workpiece.
FIG. 3 is a schematic diagram of a combined induction coil, in which different induction coil sets are connected by connecting plates and screws and are filled with cooling water, so that the cooling water in the coils can keep a certain cooling temperature; the first induction coil to the third induction coil form a first combined inductor which has higher power and is used for completing the rapid heating of a workpiece; the fourth induction coil to the seventh induction coil form a second combined inductor which has moderate power and is used for further slowly heating the workpiece; the eighth induction coil forms a third combined inductor, and a uniform temperature zone is formed by utilizing a heat conduction effect to enable the temperature of each part of the workpiece to tend to be uniform; the ninth induction coil forms a fourth combined inductor to complete the supplementary heating of the workpiece, so that the temperature of the workpiece reaches the quenching temperature required by the process. Through practical verification, the heating effect of the workpiece is good, and the requirement of a product is well met.
The invention can well solve the technical problem of uneven temperature of parts when the cone-barrel-shaped combined parts are quenched by a medium-frequency induction heating mode. Through practical verification, the heating effect is good, and the requirements of products are well met. The specific operation is as follows: before the medium-frequency induction heating device works, a certain amount of waste materials are fed into the furnace, the cooling water of the coil is opened to ensure that the cooling water is smooth, and after the medium-frequency induction heating device works normally, the outlet temperature of the cooling water in the coil is not higher than a certain temperature (such as 60 ℃); heating the medium frequency induction furnace for a certain time, adjusting the voltage to a normal working voltage value, feeding materials into the furnace according to the beat, feeding a plurality of waste materials firstly and then feeding qualified materials, and distinguishing the waste materials from the qualified materials; when the last but one material is sent out from the discharge port, the inspector adopts a pyrometer to measure the temperature of the workpiece, the temperature value of the workpiece is required to reach the temperature range specified by the process, and if the temperature value of the workpiece is not reached the specified value, the power supply parameters are required to be adjusted; adjusting power supply parameters mainly based on voltage, reducing the voltage when the temperature is high, and otherwise increasing the voltage; when the production is stopped, a certain amount of waste materials are fed into the furnace, the power supply is cut off after all the qualified materials are discharged, and the cooling water can be turned off when the temperature of the outer surface of the furnace body is lower than a certain value. The invention is also suitable for cylindrical parts and shaft parts.
The above description is only a preferred embodiment of the present invention, and the above specific embodiments are not intended to limit the present invention, and modifications, modifications or equivalents thereof, which may occur to those skilled in the art, are included within the scope of the present invention.
Claims (6)
1. The utility model provides a medium frequency induction heating device for awl bucket-shaped part, includes conveying mechanism, heating furnace body, heating system and cooling water circulation system, its characterized in that: the conveying mechanism comprises an arc-shaped guide rail and a material pushing cylinder arranged at one end of the arc-shaped guide rail; the heating furnace body is sequentially provided with a furnace outer body, a furnace body annular hole and a furnace lining from outside to inside, and an arc-shaped material channel for placing an arc-shaped guide rail is formed through an encephalic lining; the heating system comprises a rapid heating area, a slow heating area, a heat preservation area and a supplementary heating area which are arranged inside the annular hole of the furnace body in sequence close to the conveying mechanism, the rapid heating area is provided with a first combined inductor, the slow heating area is provided with a second combined inductor, the heat preservation area is provided with a third combined inductor, the supplementary heating area is provided with a fourth combined inductor, the combined inductors comprise induction coil groups with different numbers, each induction coil group forms a loop by being connected with a capacitor, and the medium-frequency power supply realizes the functions of rectification triggering, regulation, inversion and starting calculation through the heating of the capacitor to the induction coil; the cooling water circulation system comprises a cooling water source and a cooling water pipe connected with the cooling water source, cooling water is filled in the induction coils, and adjacent induction coil groups are connected through the cooling water pipe.
2. The medium frequency induction heating apparatus for a cone-shaped part according to claim 1, characterized in that: a pressing plate is arranged between the top of the furnace body and the annular hole of the furnace body, a bottom plate is arranged between the bottom of the furnace body and the annular hole of the furnace body, and the top of the furnace body, the pressing plate and the bottom plate are tightened by a long screw rod.
3. The medium frequency induction heating apparatus for a cone-shaped part according to claim 1, characterized in that: the bottom plate, the pressing plate and the furnace lining are all made of aluminum silicate refractory fibers, and the aluminum silicate refractory fibers have a good refractory effect and meet the heating requirement.
4. The medium frequency induction heating apparatus for a cone-shaped part according to claim 1, characterized in that: the intermediate frequency power supply adopts a silicon controlled intermediate frequency power supply.
5. The medium frequency induction heating apparatus for a cone-shaped part according to claim 1, characterized in that: and one end of the heating furnace body, which is far away from the material pushing mechanism, is provided with a furnace door for discharging the parts.
6. The medium frequency induction heating apparatus for a cone-shaped part according to claim 1, characterized in that: and adjacent induction coil groups of the cooling water pipe are fixed through a connecting plate and a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911015046.XA CN110938735A (en) | 2019-10-24 | 2019-10-24 | Intermediate frequency induction heating device for conical barrel-shaped part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911015046.XA CN110938735A (en) | 2019-10-24 | 2019-10-24 | Intermediate frequency induction heating device for conical barrel-shaped part |
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| CN110938735A true CN110938735A (en) | 2020-03-31 |
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| CN201911015046.XA Pending CN110938735A (en) | 2019-10-24 | 2019-10-24 | Intermediate frequency induction heating device for conical barrel-shaped part |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115506205A (en) * | 2022-09-19 | 2022-12-23 | 广西北投交通养护科技集团有限公司 | Intermittent old material regeneration heating equipment and use method thereof |
| CN115506205B (en) * | 2022-09-19 | 2024-07-05 | 广西北投交通养护科技集团有限公司 | Intermittent old material regeneration heating equipment and using method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204220900U (en) * | 2014-10-31 | 2015-03-25 | 河北盛跃铁路电气化器材有限公司 | A kind of forging quantity-produced heated line |
-
2019
- 2019-10-24 CN CN201911015046.XA patent/CN110938735A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204220900U (en) * | 2014-10-31 | 2015-03-25 | 河北盛跃铁路电气化器材有限公司 | A kind of forging quantity-produced heated line |
Non-Patent Citations (1)
| Title |
|---|
| 胡亚民等: "《摆动辗压工艺及模具设计》", vol. 1, 31 December 2001, 重庆大学出版社, pages: 121 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115506205A (en) * | 2022-09-19 | 2022-12-23 | 广西北投交通养护科技集团有限公司 | Intermittent old material regeneration heating equipment and use method thereof |
| CN115506205B (en) * | 2022-09-19 | 2024-07-05 | 广西北投交通养护科技集团有限公司 | Intermittent old material regeneration heating equipment and using method thereof |
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