CN103273020B - A kind of Electromagnetic Heating cap mouth device of static ingot - Google Patents
A kind of Electromagnetic Heating cap mouth device of static ingot Download PDFInfo
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- CN103273020B CN103273020B CN201310207578.XA CN201310207578A CN103273020B CN 103273020 B CN103273020 B CN 103273020B CN 201310207578 A CN201310207578 A CN 201310207578A CN 103273020 B CN103273020 B CN 103273020B
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- ingot
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 30
- 230000003068 static effect Effects 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- 239000011819 refractory material Substances 0.000 claims abstract description 22
- 238000007711 solidification Methods 0.000 claims abstract description 15
- 230000008023 solidification Effects 0.000 claims abstract description 15
- 241001125879 Gobio Species 0.000 claims abstract description 11
- 230000006698 induction Effects 0.000 claims description 16
- 230000035699 permeability Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 230000035939 shock Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000003643 water by type Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000012797 qualification Methods 0.000 abstract description 4
- 238000005204 segregation Methods 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 abstract description 4
- 230000005672 electromagnetic field Effects 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000013019 agitation Methods 0.000 abstract description 2
- 230000005674 electromagnetic induction Effects 0.000 abstract description 2
- 238000007667 floating Methods 0.000 abstract description 2
- 238000005266 casting Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000005352 galvanomagnetic phenomena Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Continuous Casting (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of Electromagnetic Heating cap mouth device of static ingot, it is applicable to various billet, square ingot, slab ingot and polygonal ingot and produces.This device is fixed on ingot mould body, is made up of electromagnetic inductor, refractory material lining, cap mouth shell, gudgeon and cap velar plate.Gudgeon is fixed on cap mouth shell, and inside cap mouth shell, knotting has refractory material to serve as a contrast, and electromagnetic inductor is located at refractory material lining outside, and cap velar plate covers on electromagnetic induction cap mouth.Electromagnetic inductor of the present invention passes to 10
2~ 10
6hz alternating current, its electromagnetic field produced has heating and stirring action, and heating effect can impel and form steady heat center in ingot head opening, is conducive to improving steel ingot feeding efficiency, reduces cap volume ratio.Electromagnetic agitation effect can disperse segregation, promotes to be mingled with floating, improves ingot solidification quality.Adopt the present invention, steel ingot lumber recovery can improve more than 3%, and product ultrasonic flaw detection qualification rate can reach 98%.
Description
Technical field
The invention belongs to metallurgical casting technical field, particularly a kind of Electromagnetic Heating cap mouth device of static ingot.
Background technology
Steel ingot has overwhelming superiority in the production of special steel, large forgings, special heavy plate and small lot multi items steel products.At present, a lot of industrially developed country still maintains the die casting ratio of 4 ~ 6%, and its product is widely used in the key areas such as metallurgy, shipbuilding, defence and military, electric power, nuclear energy, skyscraper, petrochemical industry.Due to the particularity of application, extremely strict to the requirement of its product quality and performances, what have also requires to have higher Z-direction performance and flaw detection qualification rate.But During Ingot Solidification inevitably can run into and solidify feeding difficulty, solidify the generation that feeding obstacle can impel steel ingot internal defect and shrinkage cavity, and steel ingot is larger, ratio of height to diameter is larger, it is further difficult to solidify feeding.
At present, in order to solve a steel ingot feeding difficult problem, how to adopt exothermic mixture heating at cap mouth, or adopt resistance heated, or adopt the modes such as graphite electrode heating to delay cap mouth solidification of molten steel, and then promote During Ingot Solidification feeding.But adopt exothermic mixture only can of short duration maintenance cap mouth molten steel thermal center (-tre), steel ingot be larger, and setting time is longer, and its effect is more not obvious, and during casting large-scale steel ingot, it acts on an utterly inadequate amount especially.Resistance heated feature is that the efficiency of heating surface is low, response and controllability low, energy is concentrated not, and heat transfer rate is comparatively slow from outside to inside, and resistance wire is fragile, and when casting large-scale steel ingot, its shortcoming is more obvious.When adopting graphite electrode heating, heat concentrates on ate electrode, the easy hot-spot of molten steel, and stirring action is very little, can not dispersed elements segregation and impel gas inclusions to float, and is difficult to reach necessary requirement comprehensively.
Summary of the invention
The object of the present invention is to provide a kind of Electromagnetic Heating cap mouth device of static ingot, galvanomagnetic-effect is utilized to heat cap mouth molten steel and stir, effectively can reduce cap volume ratio and pressure processing crop rate, promote ingot solidification feeding and dispersed elements segregation, improve steel ingot internal soundness, improve product ultrasonic flaw detection qualification rate.
An Electromagnetic Heating cap mouth device for static ingot, is fixed on ingot mould body, is made up of electromagnetic inductor, refractory material lining, cap mouth shell, gudgeon and cap velar plate.Gudgeon is fixed on cap mouth shell, and inside cap mouth shell, knotting has refractory material to serve as a contrast, and electromagnetic inductor is located at refractory material lining outside, and cap velar plate covers on Electromagnetic Heating cap mouth.
Described cap mouth shell adopts the good Steel material of magnetic permeability to make.
Described refractory material lining adopts the refractory material knotting that good, high temperature resistant, the resistance to molten steel of magnetic permeability corrodes, thermal shock performance is good to make, and after corroding by molten steel, visual erosion degree is repaired in time on casting platform.
Described electromagnetic inductor is made up of induction coil, water-cooled chassis, water inlet pipe snap joint, outlet pipe snap joint, bracing frame and yoke, control power supply and fast cable joint.Induction coil is fixed in bracing frame and yoke, and bracing frame and yoke are fixed in water-cooled chassis, and cooling water enters induction coil by water-cooled chassis, then is derived by induction coil delivery port, ensures that induction coil normally works.
Described induction coil is made up of copper pipe, is connected, passes to 102 ~ 10 by fast cable joint with control power supply
6hz alternating current, output power and time need according to cap mouth molten steel capacity, composition and ingot solidification process and determine.Start to power to coagulated ingot mould body and Electromagnetic Heating cap mouth junction when molten steel waters height, reduce power gradually according to ingot solidification process subsequently, stop power supply when steel ingot body has solidified 90%.
Described cap velar plate adopts good, high temperature resistant, that thermal shock performance the is good refractory material of magnetic permeability to make, and can reduce cap mouth molten steel heat loss.
The Electromagnetic Heating cap mouth device of described a kind of static ingot is fixed on ingot mould body by handling gudgeon, and with ingot mould body centering.
The present invention is compared with existing same device, and its significant beneficial effect is embodied in:
1. the electromagnetic field that electromagnetic inductor produces has heating and stirring action, and heating effect can impel and form steady heat center in ingot head opening, is conducive to improving steel ingot feeding efficiency, reduces cap volume ratio and pressure processing crop rate; Agitation effects can dispersed elements segregation, promotes to be mingled with floating.Therefore, adopt apparatus of the present invention can improve ingot solidification quality, steel ingot lumber recovery can improve more than 3%, and product ultrasonic flaw detection qualification rate can reach 98%.
2. the electromagnetic field that electromagnetic inductor produces can in the heating of molten steel inside, fast response time, and heat distribution is even, and the efficiency of heating surface is high, can need to control power-on time and power according to cap mouth molten steel capacity, composition and ingot solidification process, convenient operation and control, flexibly.
3. parallel way can be adopted to connect power supply, and can power for multiple inductor, its frequency, power are identical simultaneously, are conducive to realizing with the multiple steel ingot of dish casting.Its power adjustable, matches with solidification process, and production efficiency is high, controls simple.
4. the present invention side of being applicable to ingot, slab ingot, billet and polygonal ingot, design cap mouth cross sectional shape according to ingot mould body construction, easy to loading and unloading, and applicability is strong, not fragile.
Accompanying drawing explanation
Fig. 1 is a kind of Electromagnetic Heating cap mouth apparatus structure schematic diagram of static ingot.
In figure: 1, Electromagnetic Heating cap mouth; 2, ingot mould body; 3, electromagnetic inductor; 4, water-cooled chassis; 5, water inlet pipe snap joint; 6, outlet pipe snap joint; 7, bracing frame and yoke; 8, fast cable joint; 9, refractory material lining; 10, cap mouth shell; 11, gudgeon; 12, cap velar plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described, but and do not mean that limiting the scope of the invention.
As shown in Figure 1, a kind of Electromagnetic Heating cap mouth device 1 of static ingot is fixed on ingot mould body 2, by electromagnetic inductor 3, water-cooled chassis 4, water inlet pipe snap joint 5, outlet pipe snap joint 6, bracing frame and yoke 7, fast cable joint 8, refractory material lining 9, cap mouth shell 10, gudgeon 11 and cap velar plate 12 form.Gudgeon 11 is fixed on cap mouth shell 10, and inside cap mouth shell 10, knotting has refractory material to serve as a contrast 9, and electromagnetic inductor 3 is located at refractory material lining outside, and cap velar plate 12 covers on Electromagnetic Heating cap mouth 1.Cap mouth shell 10 adopts the good steel material of magnetic permeability to make; Refractory material lining 9 adopts the refractory material knotting that good, high temperature resistant, the resistance to molten steel of magnetic permeability corrodes, thermal shock performance is good to make; Electromagnetic inductor 3 is made up of induction coil, control power supply, water-cooled chassis 4, water inlet pipe snap joint 5, outlet pipe snap joint 6, bracing frame and yoke 7 and fast cable joint 8; Induction coil is fixed in bracing frame and yoke 7, and bracing frame and yoke 7 to be fixed in water-cooled chassis on 4, and cooling water enters induction coil through water-cooled chassis 4, then is derived by induction coil delivery port; Induction coil is made up of copper pipe, be connected with control power supply by fast cable joint 8, output power and time need according to cap mouth molten steel capacity, composition and ingot solidification process and determine, start to power with during Electromagnetic Heating cap mouth 1 junction to ingot mould body 2 when molten steel waters height, reduce power gradually according to ingot solidification process subsequently, stop power supply when steel ingot body has solidified 90%; Cap velar plate 12 adopts the refractory material that magnetic permeability is good, high temperature resistant, thermal shock resistance is good to make.
Crane handling gudgeon 11 is adopted to carry out the charge and discharge operations of Electromagnetic Heating cap mouth device 1, according to electromagnetic parameters such as the structure of static ingot composition and structure design electromagnetic inductor, power and frequencies.When die casting 28t, 14t, 9t, 7t polygonal forging steel ingot and electroslag remelting are with circular electrode base, steel grade is 2Cr12NiMoWV, D2,4Cr13, GCr15, its electromagnetic induction frequency is 2000Hz, power is 150 ~ 600kW, in ingot steel casting process of setting, control the parameter such as electromagnetic frequency and power and maintain cap mouth steady heat center, to promote the feeding of ingot solidification forward position, improve ingot solidification quality, improve lumber recovery.
Claims (4)
1. the Electromagnetic Heating cap mouth device of a static ingot, it is characterized in that this device is fixed on ingot mould body, by electromagnetic inductor, refractory material serves as a contrast, cap mouth shell, gudgeon and cap velar plate composition, gudgeon is fixed on cap mouth shell, inside cap mouth shell, knotting has refractory material to serve as a contrast, electromagnetic inductor is located at refractory material lining outside, cap velar plate covers on Electromagnetic Heating cap mouth, described electromagnetic inductor is by induction coil, water-cooled chassis, water inlet pipe snap joint, outlet pipe snap joint, bracing frame and yoke, control power supply and fast cable joint formation, induction coil is fixed in bracing frame and yoke, bracing frame and yoke are fixed in water-cooled chassis, cooling water enters induction coil through water-cooled chassis, derived by induction coil delivery port again, induction coil is wherein made up of copper pipe, be connected with control power supply by fast cable joint, pass to 10
2~ 10
6hz alternating current, starts to power to steel ingot body and cap mouth junction when molten steel waters height, reduces power gradually subsequently, stop power supply when steel ingot body solidifies 90% according to solidification process.
2. the Electromagnetic Heating cap mouth device of a kind of static ingot according to claim 1, is characterized in that cap mouth shell wherein adopts the good Steel material of magnetic permeability to make.
3. the Electromagnetic Heating cap mouth device of a kind of static ingot according to claim 1, is characterized in that refractory material lining wherein adopts the refractory material knotting that good, high temperature resistant, the resistance to molten steel of magnetic permeability corrodes, thermal shock performance is good to make.
4. the Electromagnetic Heating cap mouth device of a kind of static ingot according to claim 1, is characterized in that cap velar plate wherein adopts good, high temperature resistant, that thermal shock performance the is good refractory material of magnetic permeability to make.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310207578.XA CN103273020B (en) | 2013-05-29 | 2013-05-29 | A kind of Electromagnetic Heating cap mouth device of static ingot |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310207578.XA CN103273020B (en) | 2013-05-29 | 2013-05-29 | A kind of Electromagnetic Heating cap mouth device of static ingot |
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| CN103273020A CN103273020A (en) | 2013-09-04 |
| CN103273020B true CN103273020B (en) | 2016-01-20 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439195A (en) * | 2014-09-03 | 2015-03-25 | 上海大学 | Method for refining metal solidification structure through riser pulse magneto oscillation |
| CN104259441B (en) * | 2014-09-22 | 2017-04-19 | 辽宁科技大学 | Method for casting large-sized steel ingot with internally arranged cold core and top arranged electromagnetic field |
| CN104439124A (en) * | 2014-11-27 | 2015-03-25 | 清华大学 | Method for restraining macrosegregation of large steel ingot |
| CN105149530B (en) * | 2015-08-20 | 2017-07-07 | 攀钢集团西昌钢钒有限公司 | The knotting method of vanadium iron ingot mould |
| CN110315030B (en) * | 2019-07-25 | 2021-01-26 | 远大阀门集团有限公司 | Cast iron resin sand casting riser tamping tool and process thereof |
| CN111940690B (en) * | 2020-07-27 | 2022-04-15 | 辽宁科技大学 | Electromagnetic feeding control method for large-section casting blank continuous casting process |
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| RU2067909C1 (en) * | 1991-06-21 | 1996-10-20 | Олег Данилович Зорин | Top |
| CN2311328Y (en) * | 1997-06-11 | 1999-03-24 | 王成富 | Composite light heat insulation top oralia |
| CN2650906Y (en) * | 2003-10-28 | 2004-10-27 | 宝钢集团上海五钢有限公司 | Medium special steel pigot mould |
| CN201250254Y (en) * | 2008-09-01 | 2009-06-03 | 苏州工业园区华福科技有限公司 | Induction through heating furnace |
| CN101791682A (en) * | 2010-04-08 | 2010-08-04 | 中冶京诚工程技术有限公司 | Manufacturing device of ultra-large type special thick plate rectangular ingotblank |
| CN203330363U (en) * | 2013-05-29 | 2013-12-11 | 辽宁科技大学 | Cap open electromagnetic heating device for steel ingot die casting |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4494868B2 (en) * | 2004-05-21 | 2010-06-30 | 第一高周波工業株式会社 | Non-ferrous metal casting feeder |
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2013
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Patent Citations (6)
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| RU2067909C1 (en) * | 1991-06-21 | 1996-10-20 | Олег Данилович Зорин | Top |
| CN2311328Y (en) * | 1997-06-11 | 1999-03-24 | 王成富 | Composite light heat insulation top oralia |
| CN2650906Y (en) * | 2003-10-28 | 2004-10-27 | 宝钢集团上海五钢有限公司 | Medium special steel pigot mould |
| CN201250254Y (en) * | 2008-09-01 | 2009-06-03 | 苏州工业园区华福科技有限公司 | Induction through heating furnace |
| CN101791682A (en) * | 2010-04-08 | 2010-08-04 | 中冶京诚工程技术有限公司 | Manufacturing device of ultra-large type special thick plate rectangular ingotblank |
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