KR20000012062U - Magnetic field shielding device of electromagnetic continuous casting system coil - Google Patents

Magnetic field shielding device of electromagnetic continuous casting system coil Download PDF

Info

Publication number
KR20000012062U
KR20000012062U KR2019980024932U KR19980024932U KR20000012062U KR 20000012062 U KR20000012062 U KR 20000012062U KR 2019980024932 U KR2019980024932 U KR 2019980024932U KR 19980024932 U KR19980024932 U KR 19980024932U KR 20000012062 U KR20000012062 U KR 20000012062U
Authority
KR
South Korea
Prior art keywords
magnetic field
coil
continuous casting
casting system
mold
Prior art date
Application number
KR2019980024932U
Other languages
Korean (ko)
Other versions
KR200302681Y1 (en
Inventor
김호영
심동준
손영욱
Original Assignee
이구택
포항종합제철 주식회사
신현준
재단법인 포항산업과학연구원
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 이구택, 포항종합제철 주식회사, 신현준, 재단법인 포항산업과학연구원 filed Critical 이구택
Priority to KR2019980024932U priority Critical patent/KR200302681Y1/en
Publication of KR20000012062U publication Critical patent/KR20000012062U/en
Application granted granted Critical
Publication of KR200302681Y1 publication Critical patent/KR200302681Y1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/059Mould materials or platings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

본 고안은 전자기 연속주조시스템에 있어서 몰드주위에 배치되는 전자기유도 코일로부터의 자기장을 외부에 대해 차폐하기 위한 자기장 차폐 장치에 관한 것으로, 특히 자기유전물질을 이용하여 효율적인 자기장 차폐작용을 제공하도록 된 전자기 연속주조시스템 코일의 자기장 차폐장치에 관한 것이다.The present invention relates to a magnetic field shielding device for shielding the magnetic field from the electromagnetic induction coil disposed around the mold to the outside in the electromagnetic continuous casting system, in particular to provide an effective magnetic field shielding action using a magnetic dielectric material A magnetic field shield of a continuous casting system coil.

본 고안의 장치는 몰드(1)와, 이 몰드(1)주위에 배치되는 전자기유도 코일(2)을 포함하여 구성되는 전자기 연속주조시스템에 있어서, 상기 코일(2)주위에 자기유전물질로 이루어진 자기장 차폐재(3)를 배치하되 상기 코일(2)과 자기장 차폐재(3)사이를 열전도도가 큰 결합재(4)로 연결하고, 각 코일(2)에 대한 차폐재(3) 사이에 절연재(6)를 삽입설치하여서 된 구성을 특징으로 한다.The device of the present invention is an electromagnetic continuous casting system comprising a mold (1) and an electromagnetic induction coil (2) arranged around the mold (1), wherein the coil (2) is made of a magnetic dielectric material. The magnetic field shield 3 is disposed, and the coil 2 and the magnetic field shield 3 are connected by a bonding material 4 having high thermal conductivity, and the insulating material 6 is provided between the shields 3 for each coil 2. It is characterized by the configuration made by inserting.

Description

전자기 연속주조시스템 코일의 자기장 차폐 장치Magnetic field shielding device of electromagnetic continuous casting system coil

본 고안은 전자기 연속주조시스템 코일의 자기장 차폐 장치에 관한 것으로, 특히 자기유전물질로 된 자기장 차폐재를 코일 주위에 배치하여 효율적인 자기장 차폐작용을 제공하도록 된 전자기 연속주조시스템 코일의 자기장 차폐 장치에 관한 것이다.The present invention relates to a magnetic field shielding device of an electromagnetic continuous casting system coil, and more particularly, to a magnetic field shielding device of an electromagnetic continuous casting system coil arranged to provide an efficient magnetic field shielding action by arranging a magnetic field shielding material made of magnetic dielectric material around the coil. .

전자기 연속주조시스템은 구리 또는 구리 합금으로 만들어진 몰드와 몰드주위에 배치된 전자기유도 코일을 포함하는 구성으로 되어 있으며, 몰드내에는 용융상태의 금속이, 몰드주위에는 공기가 존재하게 되는 시스템이다. 그런데, 상기 요소들을 이루는 물질들의 자기투자율은 모두 특정한 부분에 국한되지 않고 외부 공간으로 무한히 퍼져나가는 형태의 분포를 가지고 있다.The electromagnetic continuous casting system is configured to include a mold made of copper or a copper alloy and an electromagnetic induction coil disposed around the mold. A molten metal is present in the mold, and air is present around the mold. However, the magnetic permeability of the materials constituting the above elements are not limited to a specific part but have a distribution in a form that infinitely spreads to the outer space.

정상적인 주조 상태에서 시스템의 동작 주파수는 수십 kHz이고, 전자기 연속주조몰드 내부의 자속밀도의 최대값은 수백 G, 코일 외부의 자속밀도은 수십 G정도의 값을 갖는다. 따라서, 외부 자기장의 세기가 그렇게 크지는 않지만 동작 주파수가 크기 때문에 주변의 금속에서는 유도전류에 의한 열로 인해 문제가 발생할 수 있다. 또한, 전자기적인 원리로 동작하는 주변의 센서나 기기들이 그 영향으로 오동작할 수 있으며 장치근처에서 일하는 작업자들도 피해를 입을 수 있다. 따라서, 전자기 연속주조시스템을 사용하는 경우 이로부터 발생하는 자기장이 외부로 퍼져나가지 못하도록 차폐해야 할 필요가 있는 것이다.In the normal casting state, the operating frequency of the system is several tens of kHz, and the maximum magnetic flux density inside the electromagnetic continuous casting mold is several hundred G, and the magnetic flux density outside the coil is about tens G. Therefore, since the strength of the external magnetic field is not so great, but the operating frequency is large, a problem may occur in the surrounding metal due to heat caused by induced current. In addition, the influence of nearby sensors or devices operating on the basis of electromagnetic principles may cause malfunctions, and workers working near the equipment may be damaged. Therefore, in the case of using the electromagnetic continuous casting system, it is necessary to shield the magnetic field generated therefrom from spreading to the outside.

기존의 일반적인 자기장 차폐 방법은 관련장치 또는 기기를 미세한 전자파의 영향으로부터 차단하기 위한 것이 대부분으로, 차폐재로는 금속을 이용하는 것이 일반적이다. 반면, 본 고안이 관련된 연속주조시스템에서 금속을 차폐재로 사용할 경우 전자기유도로 인한 과도한 발열을 방지하기 위해 냉각을 위한 설계가 추가로 고려되어야 하는 문제점이 있다.Existing general magnetic field shielding methods are to shield related devices or devices from the influence of minute electromagnetic waves, and metal is generally used as a shielding material. On the other hand, when the metal is used as a shielding material in the continuous casting system to which the present invention is concerned, there is a problem in that a design for cooling is additionally considered to prevent excessive heat generation due to electromagnetic induction.

본 고안은 이러한 배경에서 연구된 것으로, 그 목적은 전자기 연속주조시스템의 코일 주위에 자기유전물질로 이루어진 자기장 차폐재를 배치한 효율적인 구성에 의해 시스템 외부에 대해 자기장을 효율적으로 차폐함으로써, 주변의 센서나 전자기기 및 인체에 미치는 영향을 최소화할 수 있는 전자기 연속주조시스템 코일의 자기장 차폐장치를 제공하고자 하는 것이다.The present invention has been studied in this context, and its purpose is to efficiently shield magnetic fields from the outside of the system by efficiently constructing magnetic field shields made of magnetic dielectric material around the coils of the electromagnetic continuous casting system. It is an object of the present invention to provide a magnetic shielding device for an electromagnetic continuous casting system coil that can minimize the effects on electronic devices and the human body.

도1은 본 고안에 따라 자기유전물질로 된 자기장 차폐재를 코일 주위에 배치하여 외부에 대해 자기장을 차폐한 구조를 갖는 전자기 연속주조시스템의 요부 단면도이다.1 is a cross-sectional view of main parts of an electromagnetic continuous casting system having a structure in which a magnetic field shielding material made of a magnetic dielectric material is disposed around a coil to shield a magnetic field from the outside according to the present invention.

* 도면중 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

1 : 몰드 2 : 코일1: mold 2: coil

3 : 자기장 차폐재 4 : 결합재3: magnetic field shielding material 4: binder

5 : 냉각수통로 6 : 절연재5: cooling water path 6: insulation material

이하에서, 상기의 목적을 달성하기 위한 본 고안을 첨부도면을 참조하여 더욱 상세히 설명한다.Hereinafter, the present invention for achieving the above object will be described in more detail with reference to the accompanying drawings.

도1은 본 고안이 적용된 전자기 연속주조시스템의 요부구성을 도식적인 방법으로 나타낸 단면도인데, 여기에 도시된 바와 같이 본 고안의 장치는 몰드(1)에 감겨 있는 코일(2)주위에 자기유전물질로 이루어진 자기장 차폐재(3)을 배치한 형태로 구성된다. 상기 코일(2)과 차폐재(3)는 열전도도가 큰 결합재(4)로 연결되어 차폐재(3)에서 발생한 열이 코일(2)의 냉각수통로(5)를 흐르는 냉각수에 의해 방열될 수 있게 한다. 또한, 코일(2)간의 단락을 방지하기 위해 각각의 코일(2)에 부착된 차폐재(3)는 절연재(6)를 통해 전기적으로 절연되도록 한다.Figure 1 is a cross-sectional view showing the main configuration of the electromagnetic continuous casting system to which the present invention is applied, as shown here, the device of the present invention is a magnetoelectric material around the coil (2) wound around the mold (1) It consists of the form which arrange | positioned the magnetic field shielding material 3 which consists of. The coil 2 and the shield 3 are connected to a binder 4 having high thermal conductivity so that heat generated in the shield 3 can be radiated by the coolant flowing through the coolant passage 5 of the coil 2. . In addition, the shield 3 attached to each coil 2 is electrically insulated through the insulating material 6 in order to prevent a short circuit between the coils 2.

작용에 있어서, 상기 차폐재(3)를 이루는 자기유전물질은 자성체 입자를 절연된 상태로 결합하여 만든 것으로서, 그 자기투자율이 공기의 약 10∼60배이며, 전기비저항은 약 0.5∼200㏀-cm정도이다. 따라서, 상기 차폐재(3)는 유도전류에 의한 발열을 작게 유지하면서 자기장을 집속할 수 있다. 상기 본 고안에 적용된 전자기 연속주조시스템에서 코일(2)의 전류는 지면에 수직인 방향으로 흐르며, 전류에 의한 자기장은 몰드내부에서 상하방향으로 형성된다. 자기유전물질로 이루어진 차폐재(3)를 상기 코일(2)주위에 설치하면 코일(2)주위의 자속통로가 공기와 차폐재(3)로 이루어지게 되므로 대부분의 자기장이 차폐재(3)로 집중되어 통과하게 된다. 따라서, 차폐재(3)가 없을 경우에 비해 시스템 외부의 자기장을 크게 감소시킬 수 있다.In operation, the magnetic dielectric material constituting the shielding material (3) is made by combining magnetic particles in an insulated state, and its magnetic permeability is about 10 to 60 times that of air, and the electrical resistivity is about 0.5 to 200 ㏀-cm It is enough. Therefore, the shielding material 3 can focus the magnetic field while keeping the heat generated by the induced current small. In the electromagnetic continuous casting system applied to the present invention, the current of the coil 2 flows in a direction perpendicular to the ground, and the magnetic field by the current is formed in the mold in the vertical direction. When the shield 3 made of magnetic dielectric material is installed around the coil 2, the magnetic flux path around the coil 2 is made of air and the shield 3, so that most of the magnetic field is concentrated through the shield 3 Done. Therefore, the magnetic field outside the system can be greatly reduced as compared with the absence of the shield 3.

한편, 상기 코일(2)과 차폐재를 열전도도가 큰 결합재(4)로 연결하면 유도전류에 의해 차폐재(3)에서 발생한 열이 코일(2)의 냉각수통로(5)를 흐르는 냉각수에 의해 방열되므로 차폐재(3)에 대한 별도의 냉각장치없이 차폐재(3)의 온도가 과도하게 상승하는 것을 방지할 수 있다. 그런데, 열전도도가 큰 결합재(4)는 전기전도도 또한 크기 때문에 차폐재(3)를 일체형으로 만들면 코일(2)끼리 단락될 수 있다. 이를 방지하기 위해 절연재(6)를 이용하여 각각의 코일(2)에 부착된 차폐재(3)를 전기적으로 절연하여 자기장 차폐 장치를 구성하도록 한다.On the other hand, when the coil 2 and the shielding material are connected to the bonding material 4 having high thermal conductivity, the heat generated from the shielding material 3 by the induced current is radiated by the cooling water flowing through the cooling water passage 5 of the coil 2. It is possible to prevent the temperature of the shield 3 from excessively rising without a separate cooling device for the shield 3. However, since the bonding material 4 having high thermal conductivity is also large in electrical conductivity, when the shielding material 3 is made integral, the coils 2 may be shorted. To prevent this, the magnetic shielding device is configured by electrically insulating the shielding material 3 attached to each coil 2 by using the insulating material 6.

[실시예]EXAMPLE

본 고안을 적용한 전자기 연속주조시스템의 몰드(1)의 내부 단면적은 100×100mm2, 길이는 400mm, 코일(2)의 턴수는 6, 동작 주파수는 20kHz이다. 정상적인 주조상태에서 전류는 약 1000A, 몰드 내부의 자속밀도는 약 600 G이며, 차폐재(3)가 설치되지 않은 경우 코일에서 50mm 떨어진 부분의 자속밀도는 약 80 G이다. 두께 5mm의 차폐재(3)를 도면에 보인 바와 같이 설치한 경우 동일한 조건에서 코일 외부의 자속밀도는 약 30 G로서 차폐재가 없는 경우에 비해 약 60% 감소하였다. 또한 차폐재의 온도는 약 80℃로서 유도전류에 의한 발열이 그다지 심각하지 않은 것으로 나타났다.The internal cross-sectional area of the mold (1) of the electromagnetic continuous casting system to which the present invention is applied is 100 × 100mm2, The length is 400 mm, the number of turns of the coil 2 is 6, and the operating frequency is 20 kHz. In the normal casting state, the current is about 1000A, the magnetic flux density inside the mold is about 600G, and when the shielding material 3 is not installed, the magnetic flux density of 50mm away from the coil is about 80G. When the shielding material 3 having a thickness of 5 mm was installed as shown in the drawing, the magnetic flux density outside the coil was about 30 G under the same conditions, which was reduced by about 60% compared with the case without the shielding material. In addition, the temperature of the shielding material was about 80 ℃, the heat generated by the induced current was not so severe.

따라서, 상술한 바와 같은 본 고안을 이용하면 자기장 차폐재에 대한 별도의 냉각장치를 설치구비하지 않아도 전자기 연속주조시스템의 외부에 대해 자기장을 매우 효율적으로 차폐할 수 있는 효과가 있다.Therefore, by using the present invention as described above, there is an effect that can effectively shield the magnetic field against the outside of the electromagnetic continuous casting system without having to install a separate cooling device for the magnetic field shielding material.

Claims (2)

몰드(1)와 이 몰드(1)주위에 배치되는 전자기유도 코일(2)을 포함하는 전자기 연속주조시스템에 있어서, 상기 코일(2)주위에 자기유전물질로 이루어진 자기장차폐재(3)를 배치하여서 된 것을 특징으로 하는 전자기 연속주조시스템 코일의 자기장 차폐 장치.In an electromagnetic continuous casting system comprising a mold (1) and an electromagnetic induction coil (2) disposed around the mold (1), a magnetic field shield (3) made of a magnetic dielectric material is disposed around the coil (2). Magnetic field shielding device of the electromagnetic continuous casting system coil, characterized in that. 제1항에 있어서, 상기 코일(2)과 자기장 차폐재(3)를 열전도도가 큰 결합재(4)로 연결하고, 각 코일(2)에 대한 차폐재(3)사이에 절연재(6)를 삽입설치하여 구성된 것을 특징으로 하는 전자기 연속주조시스템 코일의 자기장 차폐 장치.-The method according to claim 1, wherein the coil (2) and the magnetic field shield (3) are connected with a bonding material (4) having high thermal conductivity, and an insulating material (6) is inserted between the shields (3) for each coil (2). Magnetic field shielding device of the electromagnetic continuous casting system coil, characterized in that the configuration.
KR2019980024932U 1998-12-14 1998-12-14 Magnetic shileding device utilizing magnetodielectric material for use in electromagnetic casting coil KR200302681Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019980024932U KR200302681Y1 (en) 1998-12-14 1998-12-14 Magnetic shileding device utilizing magnetodielectric material for use in electromagnetic casting coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019980024932U KR200302681Y1 (en) 1998-12-14 1998-12-14 Magnetic shileding device utilizing magnetodielectric material for use in electromagnetic casting coil

Publications (2)

Publication Number Publication Date
KR20000012062U true KR20000012062U (en) 2000-07-05
KR200302681Y1 KR200302681Y1 (en) 2003-03-31

Family

ID=49399877

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019980024932U KR200302681Y1 (en) 1998-12-14 1998-12-14 Magnetic shileding device utilizing magnetodielectric material for use in electromagnetic casting coil

Country Status (1)

Country Link
KR (1) KR200302681Y1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022065701A1 (en) * 2020-09-24 2022-03-31 아시아나아이디티 주식회사 Magnetic field shielding member for magnetic sensor, which detects magnetic body in cylinder body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022065701A1 (en) * 2020-09-24 2022-03-31 아시아나아이디티 주식회사 Magnetic field shielding member for magnetic sensor, which detects magnetic body in cylinder body

Also Published As

Publication number Publication date
KR200302681Y1 (en) 2003-03-31

Similar Documents

Publication Publication Date Title
US7321227B2 (en) Measuring electrical current flowing through a conductor
DE60038224D1 (en) INDUCTIVE HIGH-PERFORMANCE FUSING SYSTEM.
US6661327B1 (en) Electromagnetic inductor and transformer device and method making the same
US6927510B1 (en) Cooling electromagnetic stirrers
KR100978593B1 (en) Composite core nonlinear reactor and induction power receiving circuit
KR20100058410A (en) Arrangement having a superconductive cable
US7170291B2 (en) Additional fringe field shield for a superconducting magnet coil system
KR200302681Y1 (en) Magnetic shileding device utilizing magnetodielectric material for use in electromagnetic casting coil
CA1334855C (en) Electrical apparatus with an in-tank electromagnetic shield
JP3646595B2 (en) Static induction machine
KR100742499B1 (en) Core of magentic shield type superconducting cable and superconducting cable having the same
JPH0628928A (en) Water-cooled cable
US5744784A (en) Low-loss induction coil for heating and/or melting metallic materials
US2513376A (en) Induction heating coil
SU1040531A1 (en) Electric lead-in
US5695001A (en) Electromagnetic confining dam for continuous strip caster
CN221007710U (en) Mutual inductor and current detection device
JPH03123005A (en) Superconducting magnet device
JP2530440Y2 (en) Magnetic shielding hose
KR19990044825A (en) Miniscus Control Device and Method of Continuous Strip Casting Machine
JPS61170247A (en) Linear motor
SU538855A2 (en) Inductor for high-frequency welding of metal products
WO2020017708A1 (en) Fault current limiting type smart superconducting wound cable structure and method for manufacturing same, and superconducting wound cable structure-based current limiter-combined power transfer device
SU1206846A1 (en) Device for reducing losses
JPS5848798Y2 (en) induction melting and holding furnace

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20120113

Year of fee payment: 10

LAPS Lapse due to unpaid annual fee