SU1553242A2 - Method of electromagnetic conductive stirring of molten phase of continuously cast ingot - Google Patents
Method of electromagnetic conductive stirring of molten phase of continuously cast ingot Download PDFInfo
- Publication number
- SU1553242A2 SU1553242A2 SU874280650A SU4280650A SU1553242A2 SU 1553242 A2 SU1553242 A2 SU 1553242A2 SU 874280650 A SU874280650 A SU 874280650A SU 4280650 A SU4280650 A SU 4280650A SU 1553242 A2 SU1553242 A2 SU 1553242A2
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- ingot
- electromagnetic
- mixing
- continuously cast
- cast ingot
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/114—Treating the molten metal by using agitating or vibrating means
- B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Изобретение относитс к металлургии, конкретнее к непрерывной разливке стали с воздействием на жидкую фазу непрерывного слитка кондукционного электромагнитного перемешивани . Цель изобретени - повышение эффективности электромагнитного перемешивани путем увеличени длины зоны перемешивани . Определ ют величину индукции магнитного пол по зависимости B=F/√Σ.V, где F - параметр индукционного взаимодействи , равный 45...60 (н/м3)1/2 The invention relates to metallurgy, and more specifically to the continuous casting of steel with an impact on the liquid phase of a continuous ingot of conductive electromagnetic stirring. The purpose of the invention is to increase the efficiency of electromagnetic mixing by increasing the length of the mixing zone. The magnitude of the magnetic field induction is determined by the dependence B = F / √Σ . V, where F is the parameter of induction interaction, equal to 45 ... 60 (n / m 3 ) 1/2
σ - удельна электропроводность жидкой стали, см/мσ - specific electrical conductivity of liquid steel, cm / m
V - скорость потоков перемешиваемого металла, м/с.V is the flow rate of the stirred metal, m / s.
Description
Изобретение относитс к металлургии, а именно к непрерывной разливке стали с воздействием на жидкую фазу непрерывного слитка кондукционного электромагнитного перемешивани .The invention relates to metallurgy, in particular to the continuous casting of steel with an impact on the liquid phase of a continuous ingot of conductive electromagnetic stirring.
Целью изобретени вл етс повышение эффективности электромагнитного перемешивани путем увеличени длины зоны перемешивани .The aim of the invention is to increase the efficiency of electromagnetic mixing by increasing the length of the mixing zone.
Предлагаема зависимость устанавливает св зь между скоростью течени жидкой стали v слитка, возникающей в незатвердевшей сердцевине слитка при пропускании вдоль слитка посто нного электрического тока и наложении перпендикул рно току посто нного магнитного пол , удельной электропроводностью жидкой стали о и величиной индукции магнитного пол В, при которой длина зоны перемешивани максимальна при заданной величине v. Увеличение длины зоны перемешивани увеличивает объем одновременно перемешиваемой жидкой фазы слитка и повышает эффективность перемешивани .The proposed relationship establishes a relationship between the flow rate of the liquid steel v ingot, which occurs in the uncured core of the ingot when a constant electric current is passed along the ingot and is applied perpendicular to the constant magnetic field, the electrical conductivity of the liquid steel B and the magnitude of the magnetic field B at which the length of the mixing zone is maximum for a given value of v. Increasing the length of the mixing zone increases the volume of the simultaneously mixed liquid phase of the ingot and increases the mixing efficiency.
Пример. Провод т кондукционное электромагнитное перемешивание в сортовом слитке сечением 270x370 мм2 при v 0,25 м/с. При ,1Тл длина зоны перемешивани приблизительно составл ет 0,8м. Согласно предлагаемой зависимости при v 0,25 м/с иё 6- 10s См/м перемешивание следует проводить при 0,116 В 0,155Тл если при этом уменьшить величину пропускаемого по слитку электрического тока так, чтобы значение осталось неизменным при увеличении В, или при неизменной величине электрического тока при 0,113 с В 0,142Тл. При этом длина зоны перемешивани составл ет 1,6-1,8 м, т.е. увеличиваетс в два раза.Example. Conduction electromagnetic mixing is carried out in a high-grade ingot with a cross section of 270x370 mm2 at v 0.25 m / s. At 1 TL, the length of the mixing zone is approximately 0.8 m. According to the proposed relationship with v 0.25 m / s and 6-10s S / m, the mixing should be carried out at 0.116 V 0.155 Tl if at the same time reduce the value of the electric current passed through the ingot so that the value remains unchanged with increasing B, or at a constant value electric current at 0.113 s 0.142 Tl. The length of the mixing zone is 1.6-1.8 m, i.e. doubled.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874280650A SU1553242A2 (en) | 1987-07-08 | 1987-07-08 | Method of electromagnetic conductive stirring of molten phase of continuously cast ingot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874280650A SU1553242A2 (en) | 1987-07-08 | 1987-07-08 | Method of electromagnetic conductive stirring of molten phase of continuously cast ingot |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1235637 Addition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1553242A2 true SU1553242A2 (en) | 1990-03-30 |
Family
ID=21318081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU874280650A SU1553242A2 (en) | 1987-07-08 | 1987-07-08 | Method of electromagnetic conductive stirring of molten phase of continuously cast ingot |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1553242A2 (en) |
-
1987
- 1987-07-08 SU SU874280650A patent/SU1553242A2/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР № 1235637, кл. В 22 D 11/10, 1984. * |
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