JPH02222511A - Manufacture of heat-resisting coil - Google Patents
Manufacture of heat-resisting coilInfo
- Publication number
- JPH02222511A JPH02222511A JP4415389A JP4415389A JPH02222511A JP H02222511 A JPH02222511 A JP H02222511A JP 4415389 A JP4415389 A JP 4415389A JP 4415389 A JP4415389 A JP 4415389A JP H02222511 A JPH02222511 A JP H02222511A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- coil
- resistant
- wire
- insulating paint
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 238000000576 coating method Methods 0.000 claims abstract description 18
- 229920000592 inorganic polymer Polymers 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000011256 inorganic filler Substances 0.000 claims abstract description 5
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 5
- 229920003203 poly(dimethylsilylene-co-phenylmethyl- silylene) polymer Polymers 0.000 claims abstract description 4
- 229920003257 polycarbosilane Polymers 0.000 claims abstract description 4
- 229920001709 polysilazane Polymers 0.000 claims abstract description 4
- 239000003973 paint Substances 0.000 claims description 29
- 239000012784 inorganic fiber Substances 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 6
- 229920000620 organic polymer Polymers 0.000 claims description 4
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 7
- 150000001722 carbon compounds Chemical class 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 4
- 238000009413 insulation Methods 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 4
- 239000004642 Polyimide Substances 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 239000004962 Polyamide-imide Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920002312 polyamide-imide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 238000002048 anodisation reaction Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920003055 poly(ester-imide) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Insulating Of Coils (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
Abstract
Description
【発明の詳細な説明】 ［発明の目的］ （産業上の利用分野） 本発明は、耐熱コイルの製造方法に関する。[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a method for manufacturing a heat-resistant coil.
（従来の技術）
従来から耐熱コイルとして、銅線に、ポリイミド絶縁塗
料やポリアミドイミド絶縁塗料を塗布焼付けした絶縁電
線を、コイルに成形し、このコイルに上記絶縁塗料を含
浸焼付けたものが知られている。このような従来の耐熱
コイルでは、高温下で使用した場合、絶縁被膜が所定の
耐熱寿命を備えていても銅線が酸化され易いため、絶縁
被膜が剥がれ易くなり耐電圧が低下するという問題があ
る。(Prior art) Conventionally, heat-resistant coils have been known, in which copper wire is coated with polyimide insulating paint or polyamide-imide insulating paint and baked, and then an insulated wire is formed into a coil, and this coil is impregnated with the above-mentioned insulating paint and baked. ing. In such conventional heat-resistant coils, when used at high temperatures, the copper wire is easily oxidized even if the insulation coating has a specified heat-resistant life, so the insulation coating tends to peel off and the withstand voltage decreases. be.
このため、導体として銀めっき銅線を使用したり、アル
ミ線やアルマイト線を使用した絶縁電線の使用が検討さ
れている。For this reason, the use of silver-plated copper wire as a conductor, or the use of insulated wires using aluminum wire or alumite wire is being considered.
（発明が解決しようとする課題）
しかしながら、銀めっき銅線は高価であり、このため製
品のコストアップを招くという問題がある。また、アル
ミ線は安価であるが、アルマイト線に比べて必要な絶縁
耐圧を得るのに絶縁塗膜を厚く設ける必要があり、結果
的にアルミ電線としては高価なものになってしまうとい
う問題がある。さらに、アルマイト電線は安価で耐熱性
に優れており、それ自体アルマイト被膜による電気絶縁
性能を備えているが、アルマイト被膜には陽極酸化時に
形成された空孔が存在しそのままでは耐電圧特性が悪い
ので蒸気処理、煮沸処理あるいは絶縁塗料による封孔処
理が必要である。(Problems to be Solved by the Invention) However, the silver-plated copper wire is expensive, and therefore there is a problem in that it increases the cost of the product. Additionally, although aluminum wire is inexpensive, it requires a thicker insulating coating to obtain the necessary dielectric strength compared to anodized wire, resulting in an expensive aluminum wire. be. Furthermore, alumite electric wires are inexpensive and have excellent heat resistance, and they themselves have electrical insulation performance due to the alumite coating, but the alumite coating has pores formed during anodization, and if left as is, it has poor voltage resistance. Therefore, steam treatment, boiling treatment, or sealing treatment with insulating paint is required.
しかしながら、このような封孔処理の施されたアルマイ
ト電線も、高温下では蒸気処理等により形成された水酸
化アルミが酸化されて封孔が不十分になったり、絶縁塗
料の樹脂分が熱分解して炭化したりして、帯電圧特性が
低下してしまうという問題があった。However, even with such sealed alumite wires, the aluminum hydroxide formed by steam treatment may oxidize under high temperatures, resulting in insufficient sealing, and the resin content of the insulation paint may thermally decompose. There was a problem in that the charging voltage characteristics deteriorated due to carbonization.
本発明はこのような従来の問題を解決するためなされた
もので、高温下での耐電圧特性を向上させた耐熱コイル
の製造方法を提供することを目的とする。The present invention was made to solve these conventional problems, and an object of the present invention is to provide a method for manufacturing a heat-resistant coil with improved voltage resistance characteristics under high temperatures.
［発明の構成］
（課題を解決するための手段）
本発明の耐熱コイルの製造方法は、ポリボロシロキサン
、ポリカルボシラン、ポリシラスチレン、ポリシラザン
、ポリチタノカルボシランおよびポリオルガノシロキサ
ンから選ばれた１種または２種以上からなる無機ポリマ
ーの１００重量部と無機充填剤の５〜２００重量部とを
含む耐熱絶縁塗料を、表面を陽極酸化したアルミ心線上
に塗布焼付けて得た耐熱絶縁電線を、所定のコイルに成
形して焼成し、次いでこのコイルに前記耐熱絶縁塗料を
含浸させ再度焼成することを特徴としている。[Structure of the Invention] (Means for Solving the Problems) The method for producing a heat-resistant coil of the present invention includes a method for producing a heat-resistant coil using a method selected from polyborosiloxane, polycarbosilane, polysilastyrene, polysilazane, polytitanocarbosilane, and polyorganosiloxane. A heat-resistant insulated electric wire obtained by applying and baking a heat-resistant insulating paint containing 100 parts by weight of an inorganic polymer consisting of one or more types and 5 to 200 parts by weight of an inorganic filler onto an aluminum core wire whose surface has been anodized. It is characterized in that it is formed into a predetermined coil and fired, and then this coil is impregnated with the heat-resistant insulating paint and fired again.
本発明に使用される無機光てん剤としては、酸化チタン
、酸化ケイ素、酸化マグネシウム、アルミナ等の金属酸
化物、セラミックス、ガラス等の粉末、フレーク片、短
繊維などが例示される。Examples of the inorganic brightening agent used in the present invention include metal oxides such as titanium oxide, silicon oxide, magnesium oxide, and alumina, powders, flakes, and short fibers of ceramics and glass.
これらの無機充填剤の配合量は、無機ポリマー１００重
量部あたり ５〜５００１１！量部の範囲が適当である
。The blending amount of these inorganic fillers is 5 to 50011 parts per 100 parts by weight of the inorganic polymer! The range of parts is appropriate.
なお、有機溶剤の配合量は、使用状態において上記無機
ポリマー溶液がアルマイトの空孔中に容易に浸透可能な
粘度となるように適宜調整する。The amount of the organic solvent is appropriately adjusted so that the inorganic polymer solution has a viscosity that allows it to easily penetrate into the pores of the alumite during use.
このような、市販の耐熱絶縁塗料としては、ショウエク
セル（ポリボロシロキサンをベースにした耐熱塗料、昭
和電１！電纜株式会社商品名）が例示される。As such a commercially available heat-resistant insulating paint, Showa Excel (heat-resistant paint based on polyborosiloxane, trade name of Showa Den 1! Denshin Co., Ltd.) is exemplified.
本発明においては、まず断面丸または平角状のアルミ線
に所定の表面清浄化処理を施した後、例えば硫酸浴中で
交流電解法により陽極酸化することにより、アルマイト
線を得る。硫酸浴中での交流電解法により形成されたア
ルマイト被膜は可撓性に優れているので、特に本発明に
適している。In the present invention, an aluminum wire having a round or rectangular cross section is first subjected to a predetermined surface cleaning treatment, and then anodized by AC electrolysis in a sulfuric acid bath, to obtain an alumite wire. An alumite coating formed by alternating current electrolysis in a sulfuric acid bath has excellent flexibility and is therefore particularly suitable for the present invention.
次いで、このアルマイト線に上記配合の耐熱絶縁塗料を
塗布し、塗布された無機ポリマーの塗膜が自動巻線機に
より剥離されることはないが、完全には焼成されていな
い状態、すなわちアンダーキュアの状態に焼成して絶縁
電線とする。Next, this alumite wire is coated with a heat-resistant insulating paint of the above composition, and the applied inorganic polymer coating is not peeled off by an automatic winding machine, but it is in a state where it is not completely fired, that is, undercured. The insulated wire is fired to the desired state.
焼成された絶縁電線がアンダーキュアの状態にあるか、
完全に焼成された状態にあるかは、鉛筆硬度の測定、溶
剤抽出等の簡便な手段により判別可能である。Is the fired insulated wire in an undercured state?
Whether the product is completely fired can be determined by simple means such as measuring pencil hardness or solvent extraction.
本発明においては、上記絶縁電線の塗膜の上に、例えば
機械的特性を向上させるために、通常の有機ポリマーを
含む絶縁塗料を塗布焼付けて２重被覆の絶縁電線として
用いるようにしてもよい。In the present invention, an insulating paint containing an ordinary organic polymer may be applied and baked on the coating film of the insulated wire, for example, in order to improve mechanical properties, so that the wire can be used as a double-coated insulated wire. .
上記有機ポリマーとしては、例えばポリエステル、ポリ
エステルイミド、ポリイミド、ポリアミドイミド、ポリ
アミド、ポリイミダゾピロロン、ホルマール、ポリウレ
タン、エポキシ樹脂等がある。なお、これらの有機ポリ
マーが溶剤に不溶の場合には、その前駆体のポリマーが
用いられる。Examples of the organic polymer include polyester, polyesterimide, polyimide, polyamideimide, polyamide, polyimidazopyrrolone, formal, polyurethane, and epoxy resin. Note that when these organic polymers are insoluble in the solvent, their precursor polymers are used.
次いで上記絶縁電線は所定のコイル形状に成形され、加
熱焼成されて揮発分がほぼ完全に除去される。Next, the insulated wire is formed into a predetermined coil shape and heated and fired to almost completely remove volatile components.
そして、このコイルの外周には、必要に応じて無機質フ
ァイバークロスが巻回された後、前記耐熱絶縁塗料が含
浸されて再度完全焼成される。Then, an inorganic fiber cloth is wound around the outer periphery of the coil as required, and then the coil is impregnated with the heat-resistant insulating paint and completely fired again.
またこのように、無機質ファイバークロスを巻回した後
、耐熱絶縁塗料を含浸させる代りに、無機質ファイバー
クロスに前記耐熱絶縁塗料を含浸させセミキュアさせて
なるプリプレグを巻回して再度焼成させるようにしても
よい。Alternatively, instead of impregnating the inorganic fiber cloth with the heat-resistant insulating paint after winding the inorganic fiber cloth, a prepreg made by impregnating the inorganic fiber cloth with the heat-resistant insulating paint and semi-curing it may be wound and fired again. good.
上記無機質ファイバークロスとしては電気化学社製のア
ルミナ長繊維を用いたＴＰ−２５Ｄ、 ＴＰ−５０８（
いずれも商品名）やサカイ産業社製のガラステープＥＴ
Ｇ１３Ｌ３ 、ＥＴＧ１３１９ 、ＥＴＧ１３２５ 、
ＥＴＧ１３３８等が使用可能である。The above-mentioned inorganic fiber cloths include TP-25D and TP-508 (made by Denki Kagaku Co., Ltd.) using alumina long fibers.
Both are product names) and glass tape ET manufactured by Sakai Sangyo Co., Ltd.
G13L3, ETG1319, ETG1325,
ETG1338 etc. can be used.
（作用）
本発明方法によれば前述した無機ポリマーでアルマイト
電線の完全封孔がなされており、特に無機ポリマーは高
温下で熱分解しても耐電圧特性を低下させる炭素化合物
をほとんど生成しないので、高温下およびヒートサイク
ル下での耐電圧特性に優れた耐熱コイルを得ることがで
きる。(Function) According to the method of the present invention, the alumite electric wire is completely sealed with the above-mentioned inorganic polymer, and in particular, even if the inorganic polymer is thermally decomposed at high temperatures, it hardly generates carbon compounds that reduce the withstand voltage characteristics. , it is possible to obtain a heat-resistant coil with excellent withstand voltage characteristics under high temperatures and heat cycles.
（実施例） 次に本発明の実施例について説明する。(Example) Next, examples of the present invention will be described.
実施例１
直径ｉ 、 ｏ ｉ＋ｍのアルミ線を脱脂、洗浄し、硫
酸浴中で交流電解法により、表面に厚さ１０ｕｒＡのア
ルマイト被膜を形成し、洗浄、乾燥してアルマイト心線
を製造した。このアルマイト心線に、炉長７．４ｍの縦
型焼付炉を用いて、焼付温度４５０℃、焼付線速４．０
Ｉ１１／分、塗布回数６回の条件でショウエクセル［ポ
リボロシロキサン １００ｆｆｉ ！部、ＴｌＯ２１０
重量部、５１０２粉末１０重量部、溶剤Ｎ−メチル−２
−ピロリドン（ＮＭＰ）］を塗布焼付けし、さらに空焼
温度４５０℃、焼付線速４．０ｍ ／分の条件で３回空
焼きを繰返して絶縁電線を得た。Example 1 An aluminum wire with diameters i and o i+m was degreased and washed, an alumite coating with a thickness of 10 urA was formed on the surface by alternating current electrolysis in a sulfuric acid bath, and the wire was washed and dried to produce an alumite core wire. This alumite core wire was baked in a vertical baking furnace with a furnace length of 7.4 m at a baking temperature of 450°C and a baking line speed of 4.0.
Show Excel [Polyborosiloxane 100ffi! part, TlO210
Parts by weight, 10 parts by weight of 5102 powder, Solvent N-methyl-2
-pyrrolidone (NMP)] was coated and baked, and the baking was repeated three times at a baking temperature of 450° C. and a baking wire speed of 4.0 m/min to obtain an insulated wire.
得られた絶縁電線の特性は次の通りであった。The properties of the obtained insulated wire were as follows.
膜厚（μａ＋） ３５可撓性（合格
倍径） ４
鉛筆硬度 初期値 ３Ｈ
水中４８時間後 ＨＢ
６００℃×４０分巻加熱後の 無
導体露出の有無
絶縁抵抗（Ω） ２．ＯＸ次いで、この
絶縁電線を用いてツイストペアを作り、これを３００℃
で１時間加熱処理した後、ショウエクセルを浸漬し、こ
れを２５０℃から ４００℃まで１５分間かけて昇温し
て含浸層を加熱焼成した。Film thickness (μa+) 35 Flexibility (passing diameter) 4 Pencil hardness Initial value 3H After 48 hours in water HB After heating at 600°C for 40 minutes Presence or absence of non-conductor exposure Insulation resistance (Ω) 2. OX Next, use this insulated wire to make a twisted pair and heat it to 300℃.
After heat treatment for 1 hour, Showexcel was immersed, and the temperature was raised from 250°C to 400°C over 15 minutes to heat and bake the impregnated layer.
焼成後のツイストペアの常温での絶縁抵抗は■ＩＸ １
０１４Ｑ、絶縁破壊電圧１；！ ４．ＯｋＶ、４５０℃
テ２時間加熱後の絶縁抵抗は４．ＯＸ １０”’Ω、絶
縁破壊電圧は２．２ｋＶ、４５０℃で２時間加熱後、常
温に復帰するヒートサイクルを１０回繰り返した後の絶
縁抵抗は３．５Ｘ １０１３Ω、絶縁破壊電圧は２．０
ｋＶであった。The insulation resistance of the twisted pair after firing at room temperature is ■IX 1
014Q, dielectric breakdown voltage 1;! 4. OkV, 450℃
The insulation resistance after heating for 2 hours was 4. OX 10'''Ω, breakdown voltage is 2.2kV, insulation resistance after heating at 450℃ for 2 hours and returning to room temperature 10 times, insulation resistance is 3.5X 1013Ω, breakdown voltage is 2.0
It was kV.
実施例２〜１８
次表の配合の絶縁塗料を用いて実施例１と同じ条件で絶
縁電線を製造し、これを用いてツイストペアを作成した
。次にこのツイストペアに絶縁被覆に用いたと同じ絶縁
塗料を含浸させ、実施例１と同じ条件で加熱焼成した後
、常温での絶縁抵抗、絶縁破壊電圧、４５０℃で２時間
加熱後の絶縁抵抗、絶縁破壊電圧をｉｌｌ定した。その
結果を実施例１の結果と共に次表中に示す。Examples 2 to 18 Insulated wires were manufactured under the same conditions as in Example 1 using insulating paints having the formulations shown in the following table, and twisted pairs were created using the wires. Next, this twisted pair was impregnated with the same insulating paint used for the insulation coating, and after heating and baking under the same conditions as in Example 1, insulation resistance at room temperature, dielectric breakdown voltage, insulation resistance after heating at 450 ° C. for 2 hours, The dielectric breakdown voltage was determined. The results are shown in the following table together with the results of Example 1.
なお、表中の比較例は、各実施例における絶縁塗料の代
りにポリイミド絶縁塗料を用いた例であり、本発明との
比較のために用いたものである。The comparative examples in the table are examples in which polyimide insulating paint was used instead of the insulating paint in each example, and were used for comparison with the present invention.
（以下余白）
実施例１９
実施例１で用いた絶縁電線上に、常法によりポリエステ
ル絶縁塗料を塗布焼付けして厚さ５μ厘の上引き層を形
成して２ｆｆｉ被覆の絶縁電線とした。(The following is a blank space) Example 19 A polyester insulating paint was applied and baked in a conventional manner onto the insulated wire used in Example 1 to form a 5 μm thick overcoat layer to obtain a 2ffi-covered insulated wire.
次いで、この絶縁電線を用いてツイストペアを作り、こ
れを３００℃で１時間加熱処理した後、ガラステープに
ショウエクセルを含浸させてセミキュアさせたプリプレ
グを巻回し、これを２５０℃から４００℃まで１５分間
かけて昇温して含浸層を加熱焼成した。Next, a twisted pair was made using this insulated wire, which was heat-treated at 300°C for 1 hour, and then semi-cured prepreg impregnated with Shaw Excel was wound around the glass tape, and this was heated from 250°C to 400°C for 15 minutes. The impregnated layer was heated and baked by increasing the temperature over a period of minutes.
焼成後のツイストペアの常温での絶縁抵抗は２．３Ｘ
１０１３Ω、４５０℃で２時間加熱後の絶縁抵抗！；ｉ
４．８ＸｌＯ’Ｑ、４５０℃テ２ 時間加熱後、常温
ニ復帰するヒートサイクルを１０回繰り返した後の絶縁
抵抗は４ＪＸ １０１３Ω、また絶縁破壊電圧はそれぞ
し４．５ｋＶ、 ８．０ｋＶ、 ２．６ｋＶテあっ
た。The insulation resistance of the twisted pair after firing at room temperature is 2.3X
1013Ω, insulation resistance after heating at 450℃ for 2 hours! ;i
After repeating the heat cycle of 4.8XlO'Q at 450℃ for 2 hours and returning to room temperature 10 times, the insulation resistance is 4JX 1013Ω, and the dielectric breakdown voltage is 4.5kV, 8.0kV, 2, respectively. There was .6kV.
［発明の効果］
以上の実施例からも明らかなようにアルマイト心線に前
述の耐熱絶縁塗料を塗布した絶縁電線を用いたコイルは
、耐熱性、耐ヒートサイクル性ともに優れており、また
アルミ心線に直接耐熱絶縁塗料を塗布焼付した耐熱コイ
ルに比べて塗布厚が薄くて済み、銀めっき銅を使用した
耐熱コイルに比べても経済的に有利となる。[Effects of the Invention] As is clear from the above examples, a coil using an insulated wire made of an alumite core wire coated with the heat-resistant insulation paint has excellent heat resistance and heat cycle resistance. Compared to heat-resistant coils in which heat-resistant insulating paint is applied directly to the wire and baked, the coating thickness is thinner, and it is economically advantageous compared to heat-resistant coils that use silver-plated copper.
従って本発明により得られた耐熱コイルは、耐熱モータ
ー、原子力用モーター等の高温雰囲気中での用途に好適
している。Therefore, the heat-resistant coil obtained according to the present invention is suitable for use in high-temperature atmospheres such as heat-resistant motors and nuclear power motors.
Claims (4)
ラスチレン、ポリシラザン、ポリチタノカルボシランお
よびポリオルガノシロキサンから選ばれた１種または２
種以上からなる無機ポリマーの１００重量部と無機充填
剤の５〜２００重量部とを含む耐熱絶縁塗料を、表面を
陽極酸化したアルミ心線上に塗布焼付けて得た耐熱絶縁
電線を、所定のコイルに成形して焼成し、次いでこのコ
イルに前記耐熱絶縁塗料を含浸させ再度焼成することを
特徴とする耐熱コイルの製造方法。(1) One or two selected from polyborosiloxane, polycarbosilane, polysilastyrene, polysilazane, polytitanocarbosilane, and polyorganosiloxane
A heat-resistant insulated electric wire obtained by coating and baking a heat-resistant insulating paint containing 100 parts by weight of an inorganic polymer consisting of 100 parts by weight or more and 5 to 200 parts by weight of an inorganic filler on an aluminum core wire whose surface has been anodized is coated in a predetermined coil. 1. A method for manufacturing a heat-resistant coil, which comprises shaping and firing the coil, then impregnating the coil with the heat-resistant insulating paint and firing again.
ラスチレン、ポリシラザン、ポリチタノカルボシランお
よびポリオルガノシロキサンから選ばれた１種または２
種以上からなる無機ポリマーの１００重量部と無機充填
剤の５〜２００重量部とを含む耐熱絶縁塗料を、表面を
陽極酸化したアルミ心線上に塗布焼付けし、さらにその
上に、有機ポリマーを含む絶縁塗料を塗布焼付けて得た
耐熱絶縁電線を、所定のコイルに成形して焼成し、次い
でこのコイルに前記耐熱絶縁塗料を含浸させ再度焼成す
ることを特徴とする耐熱コイルの製造方法。(2) One or two selected from polyborosiloxane, polycarbosilane, polysilastyrene, polysilazane, polytitanocarbosilane, and polyorganosiloxane
A heat-resistant insulating paint containing 100 parts by weight of an inorganic polymer consisting of 100 parts by weight or more and 5 to 200 parts by weight of an inorganic filler is coated and baked on an aluminum core wire whose surface is anodized, and then a heat-resistant insulating paint containing an organic polymer A method for producing a heat-resistant coil, comprising: forming a heat-resistant insulated wire obtained by coating and baking an insulating paint into a predetermined coil and firing; then impregnating the coil with the heat-resistant insulating paint and firing again.
成した後、その外周に無機質ファイバークロスを巻回し
、前記耐熱絶縁塗料を含浸させて再度焼成することを特
徴とする特許請求の範囲第１項または第２項記載の耐熱
コイルの製造方法。(3) The heat-resistant insulated wire is formed into a predetermined coil and fired, and then an inorganic fiber cloth is wound around the outer periphery of the wire, impregnated with the heat-resistant insulating paint, and fired again. The method for manufacturing a heat-resistant coil according to item 1 or 2.
成した後、その外周に、無機質ファイバークロスに前記
耐熱絶縁塗料を含浸させセミキュアさせてなるプリプレ
グを巻回して再度焼成することを特徴とする特許請求の
範囲第１項または第２項記載の耐熱コイルの製造方法。(4) After the heat-resistant insulated wire is formed into a predetermined coil and fired, a prepreg made by semi-curing an inorganic fiber cloth impregnated with the heat-resistant insulating paint is wound around the outer circumference and fired again. A method for manufacturing a heat-resistant coil according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4415389A JPH02222511A (en) | 1989-02-23 | 1989-02-23 | Manufacture of heat-resisting coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4415389A JPH02222511A (en) | 1989-02-23 | 1989-02-23 | Manufacture of heat-resisting coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02222511A true JPH02222511A (en) | 1990-09-05 |
Family
ID=12683682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4415389A Pending JPH02222511A (en) | 1989-02-23 | 1989-02-23 | Manufacture of heat-resisting coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02222511A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0613155A2 (en) * | 1993-02-12 | 1994-08-31 | Sumitomo Electric Industries, Limited | Heat resistant insulated wire and method of preparing the same |
| JP2001127152A (en) * | 1999-10-25 | 2001-05-11 | Fujitsu Ltd | Method for forming low dielectric constant insulation film, low dielectric constant insulation film formed by the same method, and semiconductor device using the low dielectric constant insulation film |
| JP2002284998A (en) * | 2001-03-23 | 2002-10-03 | Fujitsu Ltd | Silicon-based composition, low dielectric constant film, semiconductor apparatus and method for low dielectric constant film production |
| JP2016032094A (en) * | 2014-07-25 | 2016-03-07 | ハイホン エレクトリック カンパニー リミテッドＨａｉｈｏｎｇ Ｅｌｅｃｔｒｉｃ Ｃｏ．， Ｌｔｄ． | Coil structure of open type stereoscopic wound-core dry-type transformer |
| GB2566140A (en) * | 2017-08-31 | 2019-03-06 | Sensata Technologies Inc | Electromagnetic coil |
-
1989
- 1989-02-23 JP JP4415389A patent/JPH02222511A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0613155A2 (en) * | 1993-02-12 | 1994-08-31 | Sumitomo Electric Industries, Limited | Heat resistant insulated wire and method of preparing the same |
| EP0613155A3 (en) * | 1993-02-12 | 1994-11-02 | Sumitomo Electric Industries | Heat resistant insulated wire and method of preparing the same. |
| US5431954A (en) * | 1993-02-12 | 1995-07-11 | Sumitomo Electric Industries, Ltd. | Heat resistant insulated wire and method of preparing the same |
| JP2001127152A (en) * | 1999-10-25 | 2001-05-11 | Fujitsu Ltd | Method for forming low dielectric constant insulation film, low dielectric constant insulation film formed by the same method, and semiconductor device using the low dielectric constant insulation film |
| JP2002284998A (en) * | 2001-03-23 | 2002-10-03 | Fujitsu Ltd | Silicon-based composition, low dielectric constant film, semiconductor apparatus and method for low dielectric constant film production |
| JP4545973B2 (en) * | 2001-03-23 | 2010-09-15 | 富士通株式会社 | Silicon-based composition, low dielectric constant film, semiconductor device, and method of manufacturing low dielectric constant film |
| JP2016032094A (en) * | 2014-07-25 | 2016-03-07 | ハイホン エレクトリック カンパニー リミテッドＨａｉｈｏｎｇ Ｅｌｅｃｔｒｉｃ Ｃｏ．， Ｌｔｄ． | Coil structure of open type stereoscopic wound-core dry-type transformer |
| GB2566140A (en) * | 2017-08-31 | 2019-03-06 | Sensata Technologies Inc | Electromagnetic coil |
| GB2566140B (en) * | 2017-08-31 | 2021-07-21 | Sensata Technologies Inc | Electromagnetic coil |
| US11101066B2 (en) | 2017-08-31 | 2021-08-24 | Sensata Technologies, Inc. | Electromagnetic coil |
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