CN103314122A - Heat treatment apparatus for annealing process - Google Patents

Heat treatment apparatus for annealing process Download PDF

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Publication number
CN103314122A
CN103314122A CN2011800632256A CN201180063225A CN103314122A CN 103314122 A CN103314122 A CN 103314122A CN 2011800632256 A CN2011800632256 A CN 2011800632256A CN 201180063225 A CN201180063225 A CN 201180063225A CN 103314122 A CN103314122 A CN 103314122A
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CN
China
Prior art keywords
substrate
block
coil
annealing process
equipment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011800632256A
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Chinese (zh)
Inventor
李祥源
吴镇泽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Posco Holdings Inc
Original Assignee
Posco Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Posco Co Ltd filed Critical Posco Co Ltd
Publication of CN103314122A publication Critical patent/CN103314122A/en
Pending legal-status Critical Current

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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
    • 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
    • C21D1/26—Methods of annealing
    • 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
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/663—Bell-type furnaces
    • 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
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/663—Bell-type furnaces
    • C21D9/677—Arrangements of heating devices
    • 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
    • F27B11/00—Bell-type furnaces

Abstract

Provided is a heat treatment apparatus for an annealing process which can reduce variations in temperature within a coil. The heat treatment apparatus for the annealing process includes: a base plate (100) on which the coil (400) is arranged; a cover (200), the lower side of which is open, to surround the coil (400), wherein the open lower portion (210) thereof is sealed on the edge of the base plate (100); and a support unit (300) supporting the lower portion of the base plate (100) such that a heat transfer space part (520), in which radiant heat is transferred by an external heat source, is defined in the lower portion of the base plate (100).

Description

The Equipment for Heating Processing that is used for annealing process
Technical field
The present invention relates to a kind of Equipment for Heating Processing for annealing process, more particularly, relate to a kind of like this Equipment for Heating Processing for annealing process, this equipment can reduce the temperature deviation in the coil by the upper and lower that heat is delivered to equably coil.
Background technology
In general, during the manufacturing processed of electrical sheet, carry out the open continuous oven of COF() technology, make coil remain on the lasting predetermined amount of time of about 1000 ℃ high temperature and be cooled then to have directivity to allow electrical sheet.
As depicted in figs. 1 and 2, the Equipment for Heating Processing in traditional C OF technology comprises: circular slab 10, coil 50 are arranged on the circular slab 10; Upper supporting piece 20 is made of fire-retardant material, and is sagging to prevent circular slab 10; Lower support element 30 radially arranges in the bottom of upper supporting piece 20; Lid 40 is fixed to the sand 61 of substrate 60, and covers circular slab 10, upper supporting piece 20 and lower support element 30, with direct contact the between the nitrogen atmosphere that stops outside atmosphere burning of gas device combustion atmosphere and internal medium gas.
Yet, under the situation of such conventional art, when lid is cooled off by convective heat transfer by the radiation heat transfer heating or by external heat source by external heat source, corresponding heat will be delivered to the coil in the lid, but the hot direct heating/cooling of the top tegmentum of coil at this moment, but the circular slab of heat heating/cooling that the bottom of coil can be by tegmentum and indirect heating/cooling, thereby generation is delivered to the temperature difference of heat of the upper and lower of coil, causes temperature deviation.
Especially, when upper supporting piece was made of fire-retardant material, the heat transfer efficiencies of circular slab reduced, and causes temperature deviation bigger in the coil, and so bigger temperature deviation has increased the magnetic deviation of coil, caused the magnetic quality of coil to reduce.
Therefore, need be a kind of for the technology that reduces the temperature deviation in the coil by the upper and lower that external heat is delivered to effectively coil.
Summary of the invention
Technical problem
The present invention makes great efforts to solve the problems referred to above relevant with prior art.The object of the present invention is to provide a kind of Equipment for Heating Processing for annealing process, thereby when the amount of the heat of the bottom that flow to coil by increase is heat-treated coil, can reduce the temperature deviation in the coil.
Technical scheme
To achieve these goals, heat is delivered to the Equipment for Heating Processing that is used for annealing process according to an embodiment of the invention from external heat source in annealing process procedure, and this Equipment for Heating Processing can comprise: substrate, coil are arranged on the substrate; Lid, the lower open of lid partly is sealed in the edge of substrate, to surround coil; Support unit, the bottom of supporting substrate forms heat passage space segment with the bottom at substrate, and radiant heat is delivered to heat passage space segment from external heat source.
The sealing groove part can be respectively formed at the edge of substrate, and containment member is filled the sealing groove part, and described lower open part is inserted in the containment member respectively.
Substrate can be made of the steel with superior thermal, thermal source is delivered to the bottom of coil from heat passage space segment.
Support unit can comprise central back-up block and many group expansion back-up blocks, and central back-up block is arranged on the central authorities of the bottom of substrate, and described many group expansion back-up blocks radially arrange in the bottom of substrate.
Every group in described many group expansion back-up blocks can comprise first back-up block and second back-up block, and first back-up block is towards central back-up block longitudinal extension, and second back-up block is shorter than first back-up block.
Beneficial effect
According to embodiments of the invention, in the COF technological process, directly be exposed to external heat source by the substrate that coil is arranged on it, and improve the heating/rate of cooling of coil significantly, and reduce the temperature deviation in the coil fully, this greatly influences the magnetic quality of coil.
Description of drawings
Fig. 1 is the side-view that illustrates according to the Equipment for Heating Processing that is used for annealing process of prior art.
Fig. 2 is the decomposition diagram that " A " part of Fig. 1 is shown.
Fig. 3 illustrates the side-view that is used for the Equipment for Heating Processing of annealing process according to an embodiment of the invention.
Fig. 4 is the decomposition diagram that " B " part of Fig. 3 is shown.
Fig. 5 is the graphic representation that the temperature distribution difference in the coil of the Equipment for Heating Processing that is used for annealing process is shown according to an embodiment of the invention.
100: substrate 200: lid
300: support unit 400: coil
510: containment member 520: heat passage space segment
Embodiment
At first, it will be appreciated that, when when the parts shown in each accompanying drawing are indicated by label, if possible, though identical parts shown in the different accompanying drawings, identical parts will be endowed identical label.In addition, when description is of the present invention, if may obscure purport of the present invention for relevant well-known structure or the specific explanations of function, then will omit the detailed description for described structure or function.
Describe embodiments of the invention with reference to the accompanying drawings in detail.
As shown in Figure 3 and Figure 4, be used for the Equipment for Heating Processing of annealing process according to an embodiment of the invention at annealing process procedure, by covering 200 radiation heat transfer and the thermal conduction by substrate, heating/cooling coil 400 reduces the temperature deviation in the coil 400 effectively.In the present embodiment, the external heat source that heats by radiation heat transfer and be referred to as external heat source by the external source that convective heat transfer is cooled off.
To achieve these goals, Equipment for Heating Processing comprises: substrate 100, coil 400 are arranged on the substrate 100; Cover 200, be sealed in the edge of substrate 100, to surround coil 400; Support unit 300, the bottom of supporting substrate 100 forms heat passage space segment 520 with the bottom at substrate 100.
Substrate 100 is configured as circular slab, and coil 400 is arranged on the substrate 100, and heat passage space segment 520 is formed on the downside of substrate 100, and substrate 100 directly is exposed to external heat source by heat passage space segment 520.For this purpose, substrate 100 is made of the material with good thermal conductivity, so in present embodiment of the present invention, use the steel that has good thermal conductivity and therefore external heat source is delivered to effectively coil 400.
The lid 200 that surrounds coil 400 is connected to substrate 100, at this moment, the sealing groove part 110 of having filled containment member 510 is formed on the edge of substrate 100, with hermetic sealing substrate 100 effectively with cover space between 200, the lower open part 210 of lid 200 is inserted into respectively in the containment member 510 in the sealing groove part to be sealed 110.
Lid 200 has the unlimited structure in its underpart to surround coil 400, and the lower open part 210 of lid 200 is connected respectively to the sealing groove part 110 of substrate to be sealed 100.Lid 200 separates internal medium gas and the outside atmosphere gases that covers in 200, wherein, the top of coil 400 by by lid 200 indirect heating/coolings by boosting/cooling, be used for heating/cool off simultaneously and cover the lid of 200 inside and be used as mainly heating/cooling source.
Specifically, under the situation of prior heat treatment equipment, the circular slab that coil arranges on it is supported on upper supporting piece and the lower support element, these structure tegmentums surround, therefore heat mainly is delivered to the top of coil, and under the situation of embodiments of the invention, lid 200 only surrounds substrate 100, heat passage space segment 520 is formed on the bottom of substrate 100, so that heat not only can be delivered to the top of coil 400 but also can be delivered to the bottom of coil 400 by substrate 100 by covering 200.
As mentioned above, be exposed to the thermal source of outside atmosphere gas by the upper and lower that makes substrate 100, make the heat transfer efficiencies maximization in the upper and lower of coil 400, in addition, the time official post coil 400 interior temperature deviations of the upper and lower by eliminating heating/cooling coil 400 minimize.
Support unit 300 is arranged in the bottom of substrate 100.The bottom of support unit 300 supporting substrates 100 forms heat passage space segment 520 with the bottom at substrate 100, and wherein, support unit 300 can be made of fire-retardant material, and is sagging to prevent substrate 100 creeps.
Support unit 300 comprises central back-up block 310 and many group expansion back-up blocks 320, and expansion back-up block 320 is separated, between expansion back-up block 320 heat passage space segment 520 to be set.Central authorities' back-up block 310 is circular support pieces, the central authorities that are used for the bottom of supporting substrate 100, and every group of expansion back-up block 320 comprises that first back-up block 321 and second back-up block, 322, the first back-up blocks 321 and second back-up block 322 radially and alternately arrange around central back-up block 310 at the downside of substrate 100.Here, because second back-up block, 322 to the first back-up blocks 321 are short, thus the effective layout design of realization back-up block and guarantee to exist in the bottom of substrate 100 enough heat passage spaces.
As shown in Figure 5, according to the comparison of Equipment for Heating Processing of the present invention and prior heat treatment equipment, definite is, when carrying out thermal treatment, the speed of thermal cycling is faster, and in the heating zone, the top temperature part in the coil 400 and the temperature head between the minimum temperature part reduce 100 ℃.In addition, reveal the efficient identical with conventional art by covering 200 the heating/frigorimeter of mode on the top of coil 400, yet what determine is, compares with conventional art, has improved heating/cooling in the bottom of coil 400 significantly by the mode of substrate 100.
As mentioned above, according to embodiments of the invention, in the COF technological process, directly be exposed to external heat source to reduce the temperature deviation in the coil 400 by the substrate 100 that coil 400 is arranged on it, and improved heating/rate of cooling in the upper and lower of coil 400 significantly, thereby improved the magnetic quality of coil 400.
Described the present invention in detail with reference to the preferred embodiments of the present invention.Yet, person of skill in the art will appreciate that, under the situation that does not break away from the principle of the present invention that limited its scope by claim and equivalent thereof and spirit, can change these embodiments or modification.

Claims (8)

1. Equipment for Heating Processing that is used for annealing process, heat is delivered to described Equipment for Heating Processing from external heat source in annealing process procedure, and described Equipment for Heating Processing comprises:
Substrate (100), coil (400) are arranged on the substrate (100);
Lid (200), the lower open of lid (200) partly is sealed in the edge of substrate (100), to surround coil (400);
Support unit (300), the bottom of supporting substrate (100) forms heat passage space segment (520) with the bottom at substrate (100), and radiant heat is delivered to heat passage space segment (520) from external heat source.
2. the Equipment for Heating Processing for annealing process according to claim 1, wherein, sealing groove part (110) is respectively formed at the edge of substrate (100), containment member (510) is filled sealing groove part (110), and described lower open part (210) is inserted into respectively in the containment member (510).
3. the Equipment for Heating Processing for annealing process according to claim 1, wherein, substrate (100) is made of the steel with superior thermal, thermal source is delivered to the bottom of coil (400) from heat passage space segment (520).
4. the Equipment for Heating Processing for annealing process according to claim 1, wherein, support unit (300) comprises central back-up block (310) and many group expansion back-up blocks (320), central authorities' back-up blocks (310) are arranged on the central authorities of the bottom of substrate (100), and described many group expansion back-up blocks (320) radially arrange in the bottom of substrate (100).
5. the Equipment for Heating Processing for annealing process according to claim 4, wherein, every group in described many group expansion back-up blocks (320) comprises first back-up block (321) and second back-up block (322), first back-up block (321) is towards central back-up block (310) longitudinal extension, and second back-up block (322) is shorter than first back-up block (321).
6. the Equipment for Heating Processing for annealing process according to claim 5, wherein, second back-up block (322) is arranged between first back-up block (321), thus first back-up block (321) and second back-up block (322) are alternately arranged.
7. the Equipment for Heating Processing for annealing process according to claim 1, wherein, substrate (100) is configured as circular slab, and coil (400) is arranged on the described circular slab.
8. the Equipment for Heating Processing for annealing process according to claim 1, wherein, support unit (300) is made of fire-retardant material, and is sagging to prevent substrate (100) creep.
CN2011800632256A 2010-12-27 2011-12-22 Heat treatment apparatus for annealing process Pending CN103314122A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20100135507A KR101256519B1 (en) 2010-12-27 2010-12-27 Heat-treatment apparatus in continuous annealing line
KR10-2010-0135507 2010-12-27
PCT/KR2011/010014 WO2012091363A2 (en) 2010-12-27 2011-12-22 Heat treatment apparatus for an annealing process

Publications (1)

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CN103314122A true CN103314122A (en) 2013-09-18

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CN2011800632256A Pending CN103314122A (en) 2010-12-27 2011-12-22 Heat treatment apparatus for annealing process

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JP (1) JP5687359B2 (en)
KR (1) KR101256519B1 (en)
CN (1) CN103314122A (en)
WO (1) WO2012091363A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101434556B1 (en) * 2012-10-22 2014-08-29 주식회사 포스코 Heat treatment device for annealing process
KR101434552B1 (en) * 2012-10-24 2014-08-29 주식회사 포스코 Heat treatment device for annealing process
KR102218446B1 (en) 2017-12-26 2021-02-22 주식회사 포스코 Method for manufacutring a grain oriented electrical steel sheet having low core loss

Citations (11)

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JPS63177951U (en) * 1987-05-06 1988-11-17
JPH01157150U (en) * 1988-04-18 1989-10-30
JPH04107222A (en) * 1990-08-29 1992-04-08 Ishikawajima Harima Heavy Ind Co Ltd Method for annealing coiled material to be treated and heat treatment furnace
JPH0770655A (en) * 1993-08-31 1995-03-14 Kawasaki Steel Corp Apparatus for finish-annealing grain oriented silicon steel
JPH07297145A (en) * 1995-03-02 1995-11-10 Tokyo Electron Tohoku Ltd Heat treatment system
CN2670373Y (en) * 2003-12-25 2005-01-12 宝山钢铁股份有限公司 Bell-type annealer coil bases
JP2006274334A (en) * 2005-03-29 2006-10-12 Jfe Steel Kk Method for heating coiled metal strip
CN100372949C (en) * 2003-08-19 2008-03-05 高周波热炼株式会社 Heat treating device and heat treating method
CN201100692Y (en) * 2007-10-12 2008-08-13 蓝水英 Universal loop bracket for arc face electromagnetic oven
CN101662853A (en) * 2008-08-29 2010-03-03 光洋热系统株式会社 Heating unit and heat processing device
CN101916731A (en) * 2010-07-12 2010-12-15 深圳大学 Ceramic insulating film heat-conducting substrate and manufacturing method thereof

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JPS5644713A (en) * 1979-09-20 1981-04-24 Kawasaki Steel Corp Annealing furnace
JPS6118035Y2 (en) * 1980-02-22 1986-06-02
JPH036456U (en) * 1989-06-07 1991-01-22
JPH06145816A (en) * 1992-11-05 1994-05-27 Kawasaki Steel Corp Inner cover in bell type annealing furnace

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63177951U (en) * 1987-05-06 1988-11-17
JPH01157150U (en) * 1988-04-18 1989-10-30
JPH04107222A (en) * 1990-08-29 1992-04-08 Ishikawajima Harima Heavy Ind Co Ltd Method for annealing coiled material to be treated and heat treatment furnace
JPH0770655A (en) * 1993-08-31 1995-03-14 Kawasaki Steel Corp Apparatus for finish-annealing grain oriented silicon steel
JPH07297145A (en) * 1995-03-02 1995-11-10 Tokyo Electron Tohoku Ltd Heat treatment system
CN100372949C (en) * 2003-08-19 2008-03-05 高周波热炼株式会社 Heat treating device and heat treating method
CN2670373Y (en) * 2003-12-25 2005-01-12 宝山钢铁股份有限公司 Bell-type annealer coil bases
JP2006274334A (en) * 2005-03-29 2006-10-12 Jfe Steel Kk Method for heating coiled metal strip
CN201100692Y (en) * 2007-10-12 2008-08-13 蓝水英 Universal loop bracket for arc face electromagnetic oven
CN101662853A (en) * 2008-08-29 2010-03-03 光洋热系统株式会社 Heating unit and heat processing device
CN101916731A (en) * 2010-07-12 2010-12-15 深圳大学 Ceramic insulating film heat-conducting substrate and manufacturing method thereof

Also Published As

Publication number Publication date
KR101256519B1 (en) 2013-04-22
JP5687359B2 (en) 2015-03-18
WO2012091363A3 (en) 2012-10-04
JP2014505792A (en) 2014-03-06
WO2012091363A2 (en) 2012-07-05
KR20120073676A (en) 2012-07-05

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Application publication date: 20130918

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