CN203330363U - Cap open electromagnetic heating device for steel ingot die casting - Google Patents
Cap open electromagnetic heating device for steel ingot die casting Download PDFInfo
- Publication number
- CN203330363U CN203330363U CN2013203034710U CN201320303471U CN203330363U CN 203330363 U CN203330363 U CN 203330363U CN 2013203034710 U CN2013203034710 U CN 2013203034710U CN 201320303471 U CN201320303471 U CN 201320303471U CN 203330363 U CN203330363 U CN 203330363U
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- electromagnetic
- steel ingot
- cap
- cap open
- cap mouth
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Abstract
The utility model discloses a cap open electromagnetic heating device for steel ingot die casting. The cap open electromagnetic heating device for steel ingot die casting is suitable for production of various round ingots, square ingots, flat ingots and polygonal ingots. The cap open electromagnetic heating device for steel ingot die casting is fixed to an ingot die body and is composed of an electromagnetic sensor, a fireproof material liner, a cap open outer shell, trunnions and a cup open cover board. The trunnions are fixed to the cap open outer shell, the fireproof material liner is arranged at the inner side of the cap open outer shell in a knotted mode, the electromagnetic sensor is arranged at the outer side of the fireproof material liner, and the cap open cover board covers an electromagnetic sensing cap open. A generated electromagnetic field is generated by the electromagnetic sensor through a 102 Hz-106 Hz alternating current and has the functions of heating and stirring, and the heating effect can facilitate generation of a stable heat center in a steel ingot cap open, so that the improvement of the feeding efficiency of a steel ingot is facilitated and the cap capacity ratio is reduced. Element segregation can be dispersed through the electromagnetic stirring effect, inclusion floating is facilitated, and the solidifying quality of the steel ingot is improved. According to the cap open electromagnetic heating device for steel ingot die casting, the steel ingot forming rate is improved by over 3% and the ultrasonic flaw detection passing percentage of the product reaches 98%.
Description
Technical field
The utility model belongs to the metallurgical casting technical field, the Electromagnetic Heating cap mouth device that particularly a kind of static ingot is used.
Background technology
Steel ingot has overwhelming superiority in the production of special steel, large forgings, special heavy plate and many variety steels of small lot iron product.At present, a lot of industrially developed country are still retaining 4～6% die casting ratio, 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, the also requirement had has higher Z-direction performance and flaw detection qualification rate.But During Ingot Solidification can inevitably run into and solidify the feeding difficulty, solidifies the generation that the feeding obstacle can impel steel ingot internal defect and shrinkage cavity, and steel ingot is larger, ratio of height to diameter is larger, solidifies feeding difficulty further.
At present, in order to solve a steel ingot feeding difficult problem, how at the cap mouth, adopt the exothermic mixture heating, or adopt resistance heated, or adopt the mode such as graphite electrode heating to delay cap mouth solidification of molten steel, and then promote the During Ingot Solidification feeding.But adopt exothermic mixture only can of short durationly maintain cap mouth molten steel thermal center (-tre), steel ingot is larger, and setting time is longer, and its effect is more not obvious, and during the casting large-scale steel ingot, it acts on an utterly inadequate amount especially.The resistance heated characteristics are that the efficiency of heating surface is low, response and controllability low, energy is concentrated not, heat transfer rate is slower from outside to inside, and resistance wire is fragile, when the casting large-scale steel ingot, its shortcoming is more obvious.While adopting the graphite electrode heating, heat concentrates near electrode, the easy hot-spot of molten steel, and stirring action is very little, can not the dispersed elements segregation and impel gas to be mingled with floating, be difficult to reach necessary requirement comprehensively.
The utility model content
The Electromagnetic Heating cap mouth device that provides a kind of static ingot to use is provided the purpose of this utility model, utilize galvanomagnetic-effect heated and stir cap mouth molten steel, can effectively reduce cap volume ratio and pressure processing crop rate, promote ingot solidification feeding and dispersed elements segregation, improve the steel ingot internal soundness, improve the product ultrasonic flaw detection qualification rate.
The Electromagnetic Heating cap mouth device that a kind of static ingot is used, be fixed on the ingot mould body, electromagnetic inductor, refractory material lining, cap mouth shell, gudgeon and cap velar plate, consists of.Gudgeon is fixed on cap mouth shell, and the inboard knotting of cap mouth shell has the refractory material lining, and electromagnetic inductor is located at the refractory material lining outside, and the 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 serves as a contrast and adopts the refractory material knotting that good, high temperature resistant, the anti-molten steel of magnetic permeability corrodes, thermal shock performance is good to make, and is subject to molten steel to corrode rear visual erosion degree and repairs in time on the casting platform.
Described electromagnetic inductor is comprised 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 on bracing frame and yoke, and bracing frame and yoke are fixed on water-cooled chassis, and cooling water enters induction coil by water-cooled chassis, then is derived by the induction coil delivery port, guarantees the induction coil normal operation.
Described induction coil is made by copper pipe, by fast cable joint, with the control power supply, is connected, and passes to 10
2～10
6the Hz alternating current, output power and time need to determine according to cap mouth molten steel capacity, composition and ingot solidification process.Start power supply when molten steel waters height to coagulated ingot mould body and Electromagnetic Heating cap mouth junction, reduce gradually power according to the ingot solidification process subsequently, stop power supply when the steel ingot body has solidified 90%.
Described cap velar plate adopts magnetic permeability refractory material good, high temperature resistant, that thermal shock performance is good to make, and can reduce cap mouth molten steel heat loss.
The Electromagnetic Heating cap mouth device that described a kind of static ingot is used is fixed on the ingot mould body by the handling gudgeon, and with ingot mould body centering.
The utility model 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 the steady heat center in ingot head opening, is conducive to improve the steel ingot feeding efficiency, reduces cap volume ratio and pressure processing crop rate; Agitation effects can the dispersed elements segregation, promotes to be mingled with floating.Therefore, adopt the utility model device can improve the ingot solidification quality, the steel ingot lumber recovery can improve more than 3%, and the product ultrasonic flaw detection qualification rate can reach 98%.
2. the electromagnetic field that electromagnetic inductor produces can be in the inner heating of molten steel, 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, flexible.
3. can adopt parallel way to connect power supply, can be a plurality of inductors power supplies simultaneously, and its frequency, power are identical, is conducive to realize with dish a plurality of steel ingots of casting.Its power is adjustable, with solidification process, is complementary, and production efficiency is high, controls simple.
4. the utility model side of being applicable to ingot, slab ingot, billet and polygonal ingot, design cap mouth cross sectional shape according to the ingot mould body construction, and easy to loading and unloading, applicability is strong, not fragile.
The accompanying drawing explanation
Fig. 1 is the Electromagnetic Heating cap mouth apparatus structure schematic diagram that a kind of static ingot is used.
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.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further, but and does not mean that the restriction to the utility model protection domain.
As shown in Figure 1, the Electromagnetic Heating cap mouth device 1 that a kind of static ingot is used 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 the inboard knotting of cap mouth shell 10 has refractory material lining 9, and electromagnetic inductor 3 is located at the 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 anti-molten steel of magnetic permeability corrodes, thermal shock performance is good to make; Electromagnetic inductor 3 is comprised 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 on bracing frame and yoke 7, and bracing frame and yoke 7 are fixed on water-cooled chassis on 4, and cooling water enters induction coil through water-cooled chassis 4, then is derived by the induction coil delivery port; Induction coil is made by copper pipe, by fast cable joint 8, with the control power supply, be connected, output power and time need to determine according to cap mouth molten steel capacity, composition and ingot solidification process, when watering height to ingot mould body 2 and Electromagnetic Heating cap mouth 1 junction, molten steel starts power supply, reduce gradually power according to the ingot solidification process subsequently, stop power supply when the steel ingot body has solidified 90%; Cap velar plate 12 adopts magnetic permeability refractory material good, high temperature resistant, that thermal shock resistance is good to make.
Employing crane handling gudgeon 11 carries out the charge and discharge operations of Electromagnetic Heating cap mouth device 1, according to the electromagnetic parameters such as structure, power and frequency of static ingot composition and structure design electromagnetic inductor.When die casting 28t, 14t, 9t, 7t polygonal forging steel ingot and electroslag remelting are used the circular electrode base, steel grade is 2Cr12NiMoWV, D2,4Cr13, GCr15, its electromagnetic induction frequency is 2000Hz, power is 150～600kW, in the ingot steel casting process of setting, control the parameters such as electromagnetic frequency and power and maintain cap mouth steady heat center, to promote the feeding of ingot solidification forward position, improve the ingot solidification quality, improve lumber recovery.
Claims (3)
1. the Electromagnetic Heating cap mouth device that static ingot is used, it is characterized in that this device is fixed on the ingot mould body, by electromagnetic inductor, refractory material lining, cap mouth shell, gudgeon and cap velar plate, formed, gudgeon is fixed on cap mouth shell, the inboard knotting of cap mouth shell has the refractory material lining, electromagnetic inductor is located at the refractory material lining outside, and the cap velar plate covers on electromagnetic induction cap mouth.
2. the Electromagnetic Heating cap mouth device that a kind of static ingot according to claim 1 is used, it is characterized in that electromagnetic inductor wherein consists 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 on bracing frame and yoke, bracing frame and yoke are fixed on water-cooled chassis, cooling water enters induction coil through water-cooled chassis, then is derived by the induction coil delivery port.
3. the Electromagnetic Heating cap mouth device that a kind of static ingot according to claim 2 is used, is characterized in that induction coil wherein made by copper pipe, by fast cable joint with control power supply and be connected, pass to 10
2～10
6the Hz alternating current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203034710U CN203330363U (en) | 2013-05-29 | 2013-05-29 | Cap open electromagnetic heating device for steel ingot die casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203034710U CN203330363U (en) | 2013-05-29 | 2013-05-29 | Cap open electromagnetic heating device for steel ingot die casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203330363U true CN203330363U (en) | 2013-12-11 |
Family
ID=49699063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203034710U Expired - Fee Related CN203330363U (en) | 2013-05-29 | 2013-05-29 | Cap open electromagnetic heating device for steel ingot die casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203330363U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273020A (en) * | 2013-05-29 | 2013-09-04 | 辽宁科技大学 | Electromagnetic heating cap opening device for static ingot |
| CN104439124A (en) * | 2014-11-27 | 2015-03-25 | 清华大学 | Method for restraining macrosegregation of large steel ingot |
| CN105195675A (en) * | 2015-02-04 | 2015-12-30 | 镇江市丹徒区环宇轧辊厂 | Electrical heating riser |
| CN106734932A (en) * | 2016-12-30 | 2017-05-31 | 大连船用推进器有限公司 | Large-scale marine propeller casts rising head induction heating apparatus |
-
2013
- 2013-05-29 CN CN2013203034710U patent/CN203330363U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273020A (en) * | 2013-05-29 | 2013-09-04 | 辽宁科技大学 | Electromagnetic heating cap opening device for static ingot |
| CN103273020B (en) * | 2013-05-29 | 2016-01-20 | 辽宁科技大学 | A kind of Electromagnetic Heating cap mouth device of static ingot |
| CN104439124A (en) * | 2014-11-27 | 2015-03-25 | 清华大学 | Method for restraining macrosegregation of large steel ingot |
| CN105195675A (en) * | 2015-02-04 | 2015-12-30 | 镇江市丹徒区环宇轧辊厂 | Electrical heating riser |
| CN106734932A (en) * | 2016-12-30 | 2017-05-31 | 大连船用推进器有限公司 | Large-scale marine propeller casts rising head induction heating apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20140529 |