JPS6146924B2 - - Google Patents
Info
- Publication number
- JPS6146924B2 JPS6146924B2 JP17011083A JP17011083A JPS6146924B2 JP S6146924 B2 JPS6146924 B2 JP S6146924B2 JP 17011083 A JP17011083 A JP 17011083A JP 17011083 A JP17011083 A JP 17011083A JP S6146924 B2 JPS6146924 B2 JP S6146924B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- thin
- synthetic resin
- unglazed
- resin layer
- 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
Links
- 239000000919 ceramic Substances 0.000 claims description 17
- 229920003002 synthetic resin Polymers 0.000 claims description 10
- 239000000057 synthetic resin Substances 0.000 claims description 10
- 239000011810 insulating material Substances 0.000 claims description 8
- 238000010304 firing Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000012777 electrically insulating material Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 229920000298 Cellophane Polymers 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Landscapes
- Insulating Bodies (AREA)
Description
【発明の詳細な説明】
従来変圧器の絶縁材料にはエポキシモールデイ
ングが用いられたため熱伝導性に乏しく熱の蓄積
集中を避け難く火災の原因となるおそれがあつ
た。DETAILED DESCRIPTION OF THE INVENTION Conventionally, epoxy molding has been used as an insulating material for transformers, which has poor thermal conductivity, making it difficult to avoid heat accumulation and concentration, which may cause a fire.
本発明は熱伝導性に優れ熱を発散し安全性に富
むばかりでなく耐熱性、耐絶縁性に優れた薄い電
気絶縁材料を得ることを目的とするものであつて
素焼薄層の表面に釉楽焼成層を形成し、裏面に合
成樹脂層を一体的に形成してなる電気絶縁材料お
よびその製造法に関するものである。 The object of the present invention is to obtain a thin electrically insulating material that not only has excellent thermal conductivity and dissipates heat, is highly safe, but also has excellent heat resistance and insulation resistance. The present invention relates to an electrical insulating material formed by forming an easy firing layer and integrally forming a synthetic resin layer on the back surface, and a method for manufacturing the same.
本発明を図面に示す実施例について説明する
と、紙繊維に陶土を含滲させて抄製してなる所謂
陶紙１を第３図、第４図に示すように平面２又は
山形成形面３に裏面を接して支持する。この状態
において同陶紙１の表面に釉楽４′を塗布すると
同陶紙１は上記平面２又は成形面３に裏面が密着
する。その後これをそのまま焼成炉に挿入して焼
成すると紙繊維分は焼却し陶土分が薄い（１mm程
度）素焼薄層５（ポーラス素焼シート）となると
同時にその表面の釉楽４′は溶融してきわめて薄
い（１mm以下）釉楽焼成層４（ガラス質被膜）を
形成するものである。一般には素焼に焼成し冷却
後釉楽を塗布しさらにこれを焼成するが、本発明
では素焼工程を省略する。このようにした薄セラ
ミツクシートａは上記平面２又は成形面３から分
離した後裏面素焼面にエポキシ樹脂を塗着して加
熱してこれを硬化し約２mm程度の合成樹脂層６を
形成して製品とするものである。 To explain the embodiments of the present invention shown in the drawings, a so-called ceramic paper 1 made by impregnating paper fibers with china clay and making it is made into a flat surface 2 or a mountain-formed surface 3 as shown in FIGS. 3 and 4. Support the back side. In this state, when the glaze 4' is applied to the surface of the ceramic paper 1, the back side of the ceramic paper 1 comes into close contact with the flat surface 2 or the molding surface 3. After that, when this is directly inserted into the kiln and fired, the paper fibers are incinerated and the china clay becomes a thin (about 1 mm) unglazed layer 5 (porous unglazed sheet), and at the same time the glaze 4' on the surface melts and becomes extremely thin. A thin (1 mm or less) glaze fired layer 4 (vitreous coating) is formed. Generally, the material is fired into an unglazed state, cooled, coated with a glaze, and then fired, but in the present invention, the unglazed step is omitted. After separating the thin ceramic sheet a from the flat surface 2 or the molding surface 3, an epoxy resin is applied to the unglazed surface of the back surface and heated to harden it, forming a synthetic resin layer 6 of about 2 mm. It is intended as a product.
この電気絶縁材料は木型７の面に張設したセロ
ハン８の外周にガラス繊維強化プラスチツクス
（FRP）層９を形成し、その外面に塗布した加熱
溶融エポキシ樹脂６の外面に上記薄セラミツクシ
ートａの裏面（素焼面）を接し同樹脂６を硬化さ
せて形成することもできる。木型７は分離して第
６図に示すような変変圧器絶縁ケース１０を形成
するものである。 This electrically insulating material is made by forming a glass fiber reinforced plastic (FRP) layer 9 on the outer periphery of cellophane 8 stretched over the surface of the wooden mold 7, and forming the above-mentioned thin ceramic sheet on the outer surface of the heat-melted epoxy resin 6 applied to the outer surface of the cellophane 8. It can also be formed by bringing the back surface (unglazed surface) of a into contact and curing the same resin 6. The wooden mold 7 is separated to form a transformer insulation case 10 as shown in FIG.
上記平板状電気絶縁材料は素焼薄層５と釉楽焼
成層４とよりなる薄セラミツクシートａ（厚さ
1.2mm，幅225mm，長さ330mm）と合成樹脂層６
（厚さ1.8mm，幅、長さはセラミツク層と同じ）よ
りなるもので耐熱温度はセラミツク層1200℃，合
成樹脂層200〜250℃であつて合成耐熱温度最高
300℃であつた。 The flat electrical insulating material is a thin ceramic sheet a (thickness:
1.2mm, width 225mm, length 330mm) and synthetic resin layer 6
(thickness 1.8mm, width and length are the same as the ceramic layer), and the heat resistance temperature is 1200℃ for the ceramic layer and 200-250℃ for the synthetic resin layer, which is the highest synthetic heat resistance temperature.
It was 300℃.
本発明は上述のように素焼薄層５の表面に釉楽
焼成層４を形成してなる薄いセラミツクシートａ
とその裏面にエポキシ樹脂等の合成樹脂層６を一
体的に設けてなる薄板であるため上記セラミツク
シートａの耐熱性、耐絶縁性のため絶縁対力およ
び熱伝導性に優れ、しかも同シートａの裏面の素
焼面に合成樹脂層６が強力に附着し得て薄セラミ
ツクシートａの機械的強度を著しく向上し得て安
全性の高い電気絶縁材料が容易に得られるし、か
つ陶紙１の表面に予め釉楽４′を塗布し、これを
焼成するため、きわめて薄い（１mm前後）薄セラ
ミツクシートａが安全に得られ、かつ裏面の素焼
粗面に合成樹脂層６を強力に附着させ強度大でき
わめて薄い電気絶縁材料を得ることができるもの
である。 As described above, the present invention is a thin ceramic sheet a formed by forming a glaze fired layer 4 on the surface of an unglazed thin layer 5.
Since it is a thin plate with a synthetic resin layer 6 such as epoxy resin integrally provided on the back surface of the ceramic sheet a, it has excellent insulation strength and thermal conductivity due to the heat resistance and insulation resistance of the ceramic sheet a. The synthetic resin layer 6 can be strongly attached to the unglazed surface on the back side of the ceramic paper 1, and the mechanical strength of the thin ceramic sheet a can be significantly improved, and a highly safe electrical insulating material can be easily obtained. By applying glaze 4' on the surface in advance and firing it, an extremely thin (approximately 1 mm) thin ceramic sheet a can be safely obtained, and the synthetic resin layer 6 is strongly attached to the rough unglazed surface on the back side, increasing its strength. It is possible to obtain large and extremely thin electrical insulating materials.
第１図は本発明の電気絶縁材料を示す斜視図、
第２図は同材料の拡大側面図、第３図は薄セラミ
ツクシートの製造状態の側面図、第４図は第３図
の他の実施例の製造状態の側面図、第５図は木型
の外周に上記絶縁材料を形成した平面図、第６図
は木型を分離した状態の斜視図である。
５……素焼薄層、４……釉楽焼成層、６……合
成樹脂層、１……陶紙、４′……釉楽。
FIG. 1 is a perspective view showing the electrical insulating material of the present invention;
Figure 2 is an enlarged side view of the same material, Figure 3 is a side view of a thin ceramic sheet in a manufacturing state, Figure 4 is a side view of another example of Figure 3 in a manufacturing state, and Figure 5 is a wooden mold. FIG. 6 is a plan view showing the insulating material formed on the outer periphery of the wooden mold, and FIG. 6 is a perspective view of the wooden mold separated. 5... Thin unglazed layer, 4... Glaze fired layer, 6... Synthetic resin layer, 1... Ceramic paper, 4'... Glaze.
Claims (1)
裏面に合成樹脂層６を一体的に形成してなる電気
絶縁材料。 ２ 陶紙１を焼成する前にその表面にのみ釉楽
４′を塗布し、裏面を平面又は成形面に保持し
て、これを焼成した後、裏面に合成樹脂層６を塗
着硬化させることを特徴とする電気絶縁材料製造
法。[Claims] 1. A glazed fired layer 4 is formed on the surface of the unglazed thin layer 5,
An electrical insulating material with a synthetic resin layer 6 integrally formed on the back surface. 2. Before firing the ceramic paper 1, apply glaze 4' only to the front surface, hold the back side to a flat or molded surface, and after firing this, apply and harden the synthetic resin layer 6 on the back side. A method for producing electrically insulating materials characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17011083A JPS6062013A (en) | 1983-09-14 | 1983-09-14 | Electric insulating material and method of producing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17011083A JPS6062013A (en) | 1983-09-14 | 1983-09-14 | Electric insulating material and method of producing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6062013A JPS6062013A (en) | 1985-04-10 |
| JPS6146924B2 true JPS6146924B2 (en) | 1986-10-16 |
Family
ID=15898822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17011083A Granted JPS6062013A (en) | 1983-09-14 | 1983-09-14 | Electric insulating material and method of producing same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6062013A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02115318U (en) * | 1989-03-03 | 1990-09-14 |
-
1983
- 1983-09-14 JP JP17011083A patent/JPS6062013A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02115318U (en) * | 1989-03-03 | 1990-09-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6062013A (en) | 1985-04-10 |
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