JP2551515B2 - Insulation material for oscillation coil for induction heating - Google Patents
Insulation material for oscillation coil for induction heatingInfo
- Publication number
- JP2551515B2 JP2551515B2 JP4160004A JP16000492A JP2551515B2 JP 2551515 B2 JP2551515 B2 JP 2551515B2 JP 4160004 A JP4160004 A JP 4160004A JP 16000492 A JP16000492 A JP 16000492A JP 2551515 B2 JP2551515 B2 JP 2551515B2
- Authority
- JP
- Japan
- Prior art keywords
- high temperature
- induction heating
- temperature resistant
- oscillation coil
- insulating material
- 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.)
- Expired - Lifetime
Links
Landscapes
- General Induction Heating (AREA)
Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は誘導加熱用発振コイルの
断熱材に関するもので、特に断熱材の耐用寿命の向上を
目的とする。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating material for an induction heating oscillating coil, and particularly to improve the useful life of the heat insulating material.
【０００２】[0002]
【従来の技術】誘導加熱用発振コイルの断熱材として
は、コイルを覆うようにセメントでモールドしたカバー
の上部に耐高温用織物と耐高温絶縁性部材とを重ねるの
が一般的である。2. Description of the Related Art As a heat insulating material for an induction heating oscillation coil, a high temperature resistant fabric and a high temperature resistant insulating member are generally laminated on an upper portion of a cover molded with cement so as to cover the coil.
【０００３】[0003]
【発明が解決しようとする課題】耐高温用織物の表面は
編目状になっており、スケールの付着やヘゲ、または鉄
片の突きささりが耐高温用織物の細部、特にコイル部に
わたり発生する。この異物は誘導加熱により約１０００
℃の高温になり、直接耐高温用織物に接触するため、被
圧延スラブの輻射熱（約１０００℃）を含め耐高温織物
の温度は極限となる。また、ロール冷却水やデスケーリ
ング水が掛かるため、高温状態であった耐高温織物は急
冷される。このサイクルの繰返しが織物の耐用寿命を著
しく低下させる。更に、耐高温用織物の表面と耐高温絶
縁性部材は軟らかく、ヘゲや鉄片の突きささりが深部ま
で達し、発振コイルの絶縁部の破壊を起こし、発振コイ
ルの破損に至るケースが少なくない。The surface of the high temperature resistant woven fabric has a knitted surface, and scale deposits, baldness, or iron piece sticking occur in the details of the high temperature resistant woven fabric, particularly in the coil portion. This foreign material is about 1000 due to induction heating.
The temperature of the high temperature resistant fabric including the radiant heat (about 1000 ° C.) of the slab to be rolled becomes the maximum because the temperature of the high temperature resistant fabric directly contacts the high temperature resistant fabric. Moreover, since the roll cooling water and the descaling water are applied, the high temperature resistant fabric that has been in a high temperature state is rapidly cooled. Repeating this cycle significantly reduces the useful life of the fabric. Further, the surface of the high-temperature resistant fabric and the high-temperature insulating member are soft, and the shaving of the hair or iron pieces reaches a deep part, causing the insulating part of the oscillation coil to break, which often results in damage to the oscillation coil.
【０００４】特公平２−５６７９４号公報には発振コイ
ル部に突きささる鉄片を防止する目的で発振コイル外部
にセラミックスタイルの損傷保護体を備えたものが記載
されているが、断熱材に突きささり内部に達する異物の
侵入は防止出来ない。Japanese Patent Publication No. 2-56794 describes a ceramic-style damage protector provided outside the oscillation coil for the purpose of preventing iron pieces from sticking to the oscillation coil. It is not possible to prevent foreign matter from reaching the inside.
【０００５】[0005]
【課題を解決するための手段】本発明の要旨は以下の通
りである。The gist of the present invention is as follows.
【０００６】 誘導加熱用発振コイルを覆うようにセ
メントでモールドしたカバーの上部に耐高温用織物と耐
高温絶縁性部材とを重ねて取り付けた誘導加熱用発振コ
イルの断熱材において、耐高温用織物の上部に含有固形
物質としてアルミナと二酸化シリコンを９０％以上含有
した高耐火塗料を１．０〜３．０ｍｍ塗布したことを特
徴とする誘導加熱用発振コイルの断熱材。A high temperature resistant woven fabric is used as a heat insulating material for an induction heating oscillating coil, wherein a high temperature resistant fabric and a high temperature insulating member are stacked and attached to an upper portion of a cover molded with cement so as to cover the induction heating oscillating coil. A heat-insulating material for an oscillation coil for induction heating, characterized in that a high refractory paint containing 90% or more of alumina and silicon dioxide as a contained solid substance is applied to the upper part of 1.0 to 3.0 mm.
【０００７】 耐高温用織物と耐高温絶縁性部材との
間、および耐高温絶縁性部材と上記カバーとの間に含有
固形物質としてアルミナと二酸化シリコンを９０％以上
含有した高耐火塗料を０．１〜１．０ｍｍ塗布したこと
を特徴とする前記の誘導加熱用発振コイルの断熱材。A high fire resistant paint containing 90% or more of alumina and silicon dioxide as a solid substance contained between the high temperature resistant fabric and the high temperature resistant insulating member, and between the high temperature resistant insulating member and the cover is used. The heat insulating material for the oscillation coil for induction heating, wherein the heat insulating material is applied in an amount of 1 to 1.0 mm.
【０００８】[0008]
【作用、実施例】図１、図２は本発明の実施例を示す斜
視図および断面図である。1 and 2 are a perspective view and a sectional view showing an embodiment of the present invention.
【０００９】高耐火塗料１は高耐火度のシャモット質骨
材に無機バインダーを添加、混練したもので、施工時に
おける接着力と高温強度を兼備したグルーオンモジュー
ル専用気硬性接着剤で、通常液状である。塗布はハケ塗
りや吹付けも可能であり、化学成分は１２００℃焼成後
Ａｌ2 Ｏ3 とＳｉＯ2 が９０％以上含まれている。剪断
接着強度は１０５℃乾燥後０．５ｋｇ／ｃｍ2 以上、１
２００℃焼成後は１．０ｋｇ／ｃｍ2 以上である。高耐
火塗料１は１．０〜３．０ｍｍの厚さが適当である。
１．０ｍｍ未満では効果が発揮されず、３．０ｍｍを超
えると乾燥時間が極めて長くなるからである。The high fire-resistant paint 1 is a chamotte aggregate with high fire resistance and an inorganic binder added and kneaded. It is a glue adhesive exclusively for glue-on modules that has both adhesive strength and high temperature strength during construction. is there. The coating can be applied by brushing or spraying, and the chemical composition is 90% or more of Al 2 O 3 and SiO 2 after firing at 1200 ° C. Shear adhesive strength is 0.5 kg / cm 2 or more after drying at 105 ° C, 1
It is 1.0 kg / cm 2 or more after firing at 200 ° C. The high refractory paint 1 is suitable to have a thickness of 1.0 to 3.0 mm.
If it is less than 1.0 mm, the effect is not exhibited, and if it exceeds 3.0 mm, the drying time becomes extremely long.
【００１０】耐高温用織物２は、高温においても高い引
張強度および柔軟性を保ち、収縮が小さく、吸湿性もな
く、また他のセラミックファイバーに比べて耐磨耗性に
優れている。連続１２００℃、また短期使用には１４０
０℃の高温に耐えるもので、工業用インダクター等に用
いるものである。この耐高温用織物２は、１枚１．６ｍ
ｍ程度のものを数枚重ねて縫付けたものである。The high-temperature resistant woven fabric 2 maintains high tensile strength and flexibility even at high temperatures, has a small shrinkage, has no hygroscopicity, and is superior in abrasion resistance to other ceramic fibers. Continuous 1200 ℃, 140 for short term use
It withstands a high temperature of 0 ° C and is used for industrial inductors. This high temperature resistant fabric 2 is 1.6 m per sheet
It is made by sewing several m-thick layers.
【００１１】高耐火塗料３は、高耐火塗料１と同じ材質
のものであるが、０．１〜１．０ｍｍの厚さとするのが
適当である。０．１ｍｍ未満であると接着効力が低下し
たり、塗布面の凹凸で接着物との間に空隙が発生し、更
に効力を落とすことになる。１．０ｍｍを超えると乾燥
時間が伸びる。The high fire resistant paint 3 is made of the same material as the high fire resistant paint 1, but it is suitable to have a thickness of 0.1 to 1.0 mm. If the thickness is less than 0.1 mm, the adhesive efficacy will be reduced, or the irregularities on the coated surface will cause voids between the adhesive and the adhesive, further reducing the efficacy. If it exceeds 1.0 mm, the drying time increases.
【００１２】耐高温絶縁性部材４は約１４００℃の温度
でも絶縁性に優れた断熱材である。The high temperature resistant insulating member 4 is a heat insulating material having excellent insulating properties even at a temperature of about 1400.degree.
【００１３】高耐火塗料５は高耐火塗料３と同一のもの
である。The high fire resistant paint 5 is the same as the high fire resistant paint 3.
【００１４】誘導加熱用発振コイル７は、約５００Ｈ
ｚ、５０００Ａの電流で磁束を発生させ、被加熱材料に
うず電流を誘起させるものである。熱延スラブ加熱用の
発振コイルは昇温能力が最大１８０℃となり、９００℃
のスラブを１０８０℃まで加熱可能である。The oscillating coil 7 for induction heating is about 500H.
A magnetic flux is generated by a current of z and 5000 A to induce an eddy current in the material to be heated. The oscillation coil for heating the hot-rolled slab has a maximum heating capacity of 180 ° C and 900 ° C.
The slab can be heated to 1080 ° C.
【００１５】誘導加熱用発振コイル７をセメントでモー
ルドしたものがカバー６であり、取付け機構および冷却
装置を付帯する。A cover 6 is formed by molding the induction heating oscillation coil 7 with cement, and is provided with a mounting mechanism and a cooling device.
【００１６】[0016]
【発明の効果】耐高温用織物の表面の編目を高耐火塗料
の塗布で完全に塞ぐことが可能となる。高耐火塗料の特
性上焼成後は強度が強く、表面仕上りも良く、スケール
ブローを用いることでスケールの付着および鉄片の突き
ささりを完全に防止出来るため、耐高温用織物の異常加
熱が防止され、被圧延スラブによる輻射熱が軽減され
る。この結果、図３に示すように従来に比較して耐高温
用織物の耐用寿命を大幅に延ばすことができ、発振コイ
ルの破損が防止できる。EFFECTS OF THE INVENTION It becomes possible to completely close the stitches on the surface of the high temperature resistant fabric by applying the high fire resistant paint. Due to the characteristics of high fire resistant paint, the strength is strong after firing, the surface finish is good, and the use of scale blow can completely prevent scale adhesion and iron piece sticking, preventing abnormal heating of high temperature resistant fabrics, Radiant heat from the rolled slab is reduced. As a result, as shown in FIG. 3, the service life of the high temperature resistant fabric can be significantly extended as compared with the conventional one, and damage to the oscillation coil can be prevented.
【図１】本発明の実施例を模式的に示す斜視図である。FIG. 1 is a perspective view schematically showing an embodiment of the present invention.
【図２】本発明の実施例を示す断面図である。FIG. 2 is a sectional view showing an embodiment of the present invention.
【図３】耐高温用織物の寿命を比較した図である。FIG. 3 is a diagram comparing the lives of high temperature resistant fabrics.
１、３、５ 高耐火塗料 ２ 耐高温用織物 ３ 耐高温絶縁性部材 ６ カバー ７ 誘導加熱用発振コイル 1,3,5 High fire resistant paint 2 High temperature resistant fabric 3 High temperature resistant insulating member 6 Cover 7 Induction heating oscillation coil
───────────────────────────────────────────────────── フロントページの続き (72)発明者 桑内 和彦 千葉県君津市君津１ 新日本製鐵株式会 社 君津製鐵所内 (72)発明者 柴田 正司 千葉県富津市新富20−１ 新日本製鐵株 式会社 技術開発本部内 (72)発明者 樋口 利幸 千葉県君津市君津１ 新日本製鐵株式会 社 君津製鐵所内 (56)参考文献 特開 平３−280387（ＪＰ，Ａ) 特開 昭58−25097（ＪＰ，Ａ) 実開 平３−60795（ＪＰ，Ｕ) 実開 昭55−121494（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuhiko Kuwauchi 1 Kimitsu, Kimitsu-shi, Chiba Nippon Steel Corporation Limited Kimitsu Works (72) Inventor Shoji Shibata 20-1 Shintomi, Futtsu-shi, Chiba Made in Shinnihon (72) Inventor, Toshiyuki Higuchi, Kimitsu City, Chiba Prefecture, Kimitsu Works, Nippon Steel Corp. Kimitsu Works, Ltd. (56) 58-25097 (JP, A) Actually open Flat 3-60795 (JP, U) Actually open 55-121494 (JP, U)
Claims (2)
ントでモールドしたカバーの上部に耐高温用織物と耐高
温絶縁性部材とを重ねて取り付けた誘導加熱用発振コイ
ルの断熱材において、耐高温用織物の上部に含有固形物
質としてアルミナと二酸化シリコンを９０％以上含有し
た高耐火塗料を１．０〜３．０ｍｍ塗布したことを特徴
とする誘導加熱用発振コイルの断熱材。1. A heat insulating material for an induction heating oscillation coil, wherein a high temperature resistant fabric and a high temperature insulating member are superposed on a cover molded by cement so as to cover the induction heating oscillation coil. A heat-insulating material for an oscillation coil for induction heating, characterized in that a high-refractory paint containing 90% or more of alumina and silicon dioxide as a contained solid substance is applied to the upper part of the fabric for use in an amount of 1.0 to 3.0 mm.
間、および耐高温絶縁性部材と上記カバーとの間に含有
固形物質としてアルミナと二酸化シリコンを９０％以上
含有した高耐火塗料を０．１〜１．０ｍｍ塗布したこと
を特徴とする請求項１記載の誘導加熱用発振コイルの断
熱材。2. A high fire resistant coating material containing 90% or more of alumina and silicon dioxide as a solid substance contained between the high temperature resistant fabric and the high temperature resistant insulating member and between the high temperature resistant member and the cover. The heat insulating material for the oscillation coil for induction heating according to claim 1, wherein the heat insulating material is applied in an amount of 0.1 to 1.0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4160004A JP2551515B2 (en) | 1992-05-28 | 1992-05-28 | Insulation material for oscillation coil for induction heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4160004A JP2551515B2 (en) | 1992-05-28 | 1992-05-28 | Insulation material for oscillation coil for induction heating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05335068A JPH05335068A (en) | 1993-12-17 |
| JP2551515B2 true JP2551515B2 (en) | 1996-11-06 |
Family
ID=15705901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4160004A Expired - Lifetime JP2551515B2 (en) | 1992-05-28 | 1992-05-28 | Insulation material for oscillation coil for induction heating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2551515B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4777191B2 (en) * | 2006-09-04 | 2011-09-21 | 新日本製鐵株式会社 | Induction heating equipment installed in continuous annealing furnace with zinc bath |
| JP4332203B2 (en) * | 2007-09-27 | 2009-09-16 | 新日本製鐵株式会社 | Insulation structure of induction heating coil |
-
1992
- 1992-05-28 JP JP4160004A patent/JP2551515B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05335068A (en) | 1993-12-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19960604 |