JPH0640456B2 - Bonded porcelain insulator - Google Patents
Bonded porcelain insulatorInfo
- Publication number
- JPH0640456B2 JPH0640456B2 JP2410500A JP41050090A JPH0640456B2 JP H0640456 B2 JPH0640456 B2 JP H0640456B2 JP 2410500 A JP2410500 A JP 2410500A JP 41050090 A JP41050090 A JP 41050090A JP H0640456 B2 JPH0640456 B2 JP H0640456B2
- Authority
- JP
- Japan
- Prior art keywords
- glaze
- porcelain insulator
- porcelain
- melt flow
- glazing
- 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
- 229910052573 porcelain Inorganic materials 0.000 title claims description 46
- 239000012212 insulator Substances 0.000 title claims description 38
- 239000000155 melt Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 238000005452 bending Methods 0.000 description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
- 230000009257 reactivity Effects 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000006061 abrasive grain Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Insulators (AREA)
- Insulating Bodies (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は複数の磁器碍子を継釉に
より接合した接合磁器碍子に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bonded porcelain insulator in which a plurality of porcelain insulators are joined together by a glazed porcelain.
【０００２】[0002]
【従来の技術】一度に焼成することができないような大
型の磁器碍子を製造する場合には、複数の磁器碍子を継
釉と呼ばれる釉薬により接合して接合磁器碍子とする方
法が採られている。2. Description of the Related Art When manufacturing a large porcelain insulator that cannot be fired at once, a method of joining a plurality of porcelain insulators with a glaze called a joint glaze to form a joined porcelain insulator is adopted. .
【０００３】従来このような継釉としては、各磁器碍子
の表面に施釉される表面釉とほぼ同一組成の釉薬が使用
されていた。ところが接合のために焼成した際に継釉の
内部に多数の気泡が発生して継釉自体の強度を低下させ
るとともに、継釉と磁器碍子との間の反応性が小さいた
めに十分な接合強度が得られない問題があった。またこ
のような問題を解決しようとして低融点化した継釉を使
用すると、焼成したときに継目の部分から継釉があふれ
出て下側の磁器碍子の表面に流れ出し、外観が悪化する
のみならず継目の上部が窪み、やはり接合強度を低下さ
せるという問題があった。Conventionally, as such a glaze, a glaze having substantially the same composition as the surface glaze applied to the surface of each porcelain insulator has been used. However, when fired for bonding, many bubbles are generated inside the glazed material, which reduces the strength of the glazed material itself, and because of the small reactivity between the glazed material and the porcelain insulator, sufficient bonding strength is achieved. There was a problem that could not be obtained. In addition, if a low-melting glaze is used in an attempt to solve such a problem, the joint glaze overflows from the seam portion when it is fired and flows out onto the surface of the lower porcelain insulator, which not only deteriorates the appearance. There was a problem that the upper part of the seam was dented and the joint strength was also reduced.
【０００４】[0004]
【発明が解決しようとする課題】本発明は上記したよう
な従来の問題点を解決して、接合部の外観が良好であ
り、しかも十分な接合強度を得ることができる接合磁器
碍子を提供するために完成されたものである。DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned conventional problems and provides a bonded porcelain insulator which has a good appearance of the bonded portion and can obtain sufficient bonding strength. It was completed for the purpose.
【０００５】[0005]
【課題を解決するための手段】本発明者等は上記の課題
を解決するために研究を重ねた結果、継釉の性状を従来
のように組成面や融点から評価するだけではなく、接合
温度における流動性によって評価することが有効であ
り、特に磁器碍子の表面釉の持つ流動性との相関関係が
重要であることを知った。またこのような流動性を評価
する尺度として、「溶け流れ量」を用いることが適当で
あることを確認した。Means for Solving the Problems As a result of repeated studies for solving the above-mentioned problems, the present inventors not only evaluate the properties of the glazed glaze from the compositional aspect and melting point as in the past, but It was found that it is effective to evaluate by the fluidity in, and especially the correlation with the fluidity of the surface glaze of the porcelain insulator is important. It was also confirmed that it is appropriate to use "melt flow rate" as a scale for evaluating such fluidity.
【０００６】本発明はこのような知見に基づき完成され
たもので、表面釉が施釉された複数の磁器碍子を、その
表面釉よりも大きい溶け流れ量を持つ継釉を用いて接合
したことを特徴とするものである。また本発明では、溶
け流れ量が53〜65mmの継釉を用いることが好ましい。The present invention has been completed on the basis of such knowledge, and a plurality of porcelain insulators having glazed surface glazing are joined by using a joint glazing having a larger melt flow amount than the surface glazing. It is a feature. Further, in the present invention, it is preferable to use a glaze having a melt flow rate of 53 to 65 mm.
【０００７】なお本明細書で用いる「溶け流れ量」と
は、釉薬の粉末４ｇを直径15mmの円柱状に固形化し、傾
斜が20度の磁器板に載せて1300℃で焼成し、釉薬が溶け
流れた幅Ｗと長さＬとを冷却後に測定してその和Ｗ＋Ｌ
をmmで表した量を意味する。なお磁器板としては、1300
℃で焼成した際にも変形したりあばた状やポーラス状に
なったりすることのないSiO2 50 〜75％、Al2O3 20〜45
％の組成の磁器板であり、その表面を#800の砥粒で研摩
して平滑な面としたものを用いる。また焼成条件は大気
雰囲気中で50時間をかけて1300℃まで昇温し、２時間保
持後に30℃/Hr で常温まで冷却するものとする。The term "melt flow rate" used in the present specification means that 4 g of glaze powder is solidified into a cylindrical shape having a diameter of 15 mm, placed on a porcelain plate having an inclination of 20 degrees, and baked at 1300 ° C. to melt the glaze. The width W and the length L which flowed are measured after cooling, and the sum W + L
Means the amount in mm. As a porcelain plate, 1300
SiO 2 50-75%, Al 2 O 3 20-45 that does not become deformed or fluffy or porous even when fired at ℃
% Porcelain plate, the surface of which is polished with # 800 abrasive grains to form a smooth surface. The firing conditions are such that the temperature is raised to 1300 ° C. over 50 hours in the air atmosphere, kept for 2 hours, and then cooled to room temperature at 30 ° C./Hr.
【０００８】上記のように、本発明においては表面釉よ
りも大きい溶け流れ量を持つ継釉を用いて複数の磁器碍
子を接合する。これは継釉の溶け流れ量の方が小さい場
合には焼成した際に多数の気泡が継釉の内部に残留し、
接合強度を低下させるためである。しかし逆に継釉の溶
け流れ量が大き過ぎると外観不良を発生させるため、溶
け流れ量が53〜65mmの継釉を用いることが好ましい。こ
の場合、焼成温度を低目とすれば溶け流れ量が大き過ぎ
る継釉を用いても外観不良は防止できるものの、継釉の
内部の気泡発生量が増加するうえ、磁器碍子との反応性
が低下するので、接合強度が著しく低下する。なお後述
する実施例に具体的に示すように、通常の磁器碍子に使
用されている表面釉の溶け流れ量は50mm程度である。As described above, in the present invention, a plurality of porcelain insulators are joined by using a joint glaze having a larger melt flow amount than the surface glaze. This is because if the melt flow rate of the glazed material is smaller, many bubbles will remain inside the glazed material when fired.
This is to reduce the bonding strength. However, conversely, if the melt flow rate of the glazed powder is too large, a poor appearance occurs. Therefore, it is preferable to use a glazed powder having a melt flow rate of 53 to 65 mm. In this case, if the firing temperature is set to a low value, the appearance defect can be prevented even if a glazed material having an excessively large melt flow amount is used, but the amount of bubbles generated inside the glazed material is increased and the reactivity with the porcelain insulator is increased. As a result, the bonding strength is significantly reduced. As will be specifically shown in Examples described later, the amount of melt flow of the surface glaze used in an ordinary porcelain insulator is about 50 mm.
【０００９】このように表面釉よりも適度に大きい溶け
流れ量を持つ継釉を用いれば、継釉の内部に残留する気
泡数を減少させることができ、また継目から継釉があふ
れ出て外観不良を生ずることもない。しかもそのような
継釉はそれ自体の強度も大きく耐水性、耐候性にも優れ
るうえに、磁器碍子との反応性にも優れているので、強
固な接合磁器碍子を得ることができる。By using a joint glaze having a melt flow amount appropriately larger than that of the surface glaze, it is possible to reduce the number of bubbles remaining in the joint glaze, and the joint glaze overflows from the seam to give an appearance. No defects will occur. In addition, since such a joint glaze has a large strength itself and is excellent in water resistance and weather resistance, and is also excellent in reactivity with the porcelain insulator, it is possible to obtain a strong bonded porcelain insulator.
【００１０】なお本発明における磁器碍子としては、Si
O2 50.0〜70.0％ (重量％、以下同じ) 、Al2O3 10.0〜4
0.0％、Fe2O3 0.5 〜1.0％、TiO2 0.3〜1.0 ％、CaO 0.
2 〜0.6 ％、MgO 0.1 〜0.2 ％、K2O 1.0 〜5.0 ％、Na
2O 0.5〜3.0 ％、灼熱減量3.5 〜5.0 ％の生素地におけ
る化学組成を持ち、20〜800 ℃における熱膨脹係数が
(5.2〜8.2)×10-6／℃の従来と同様のものが使用され
る。The porcelain insulator in the present invention is made of Si
O 2 50.0 to 70.0% (weight%, the same applies below), Al 2 O 3 10.0 to 4
0.0%, Fe 2 O 3 0.5-1.0%, TiO 2 0.3-1.0%, CaO 0.
2 to 0.6%, MgO 0.1 to 0.2%, K 2 O 1.0 to 5.0%, Na
2 O 0.5-3.0%, ignition loss 3.5-5.0% has a chemical composition in the green body, the coefficient of thermal expansion at 20-800 ℃
(5.2 to 8.2) × 10 -6 / ° C, the same as the conventional one is used.
【００１１】また表面釉としては、ゼーゲル式でK2O ＋
Na2O0.05〜0.40モル、CaO 0.23〜0.45モル、MgO 0.17〜
0.54モルであり、これらの合計1.0 モルに対して、Al2O
3 0.60〜0.90モル、SiO2 4.30 〜6.80モルからなる組成
を持ち、20〜800 ℃における熱膨脹係数が(4.1〜6.1)×
10-6／℃の釉薬が使用される。なお、継釉として溶け流
れ量が53〜65mmである継釉組成は、例えばゼーゲル式で
K2O ＋Na2O 0.1〜0.5 モル、CaO 0.2 〜0.5 モル、MgO
0.1 〜0.5 モル、BaO ０〜0.5 モルであり、これらの合
計1.0 モルに対してAl2O3 0.5 〜1.0 モル、SiO2 4.0〜
7.0 モルからなる組成である。さらに、上記継釉組成に
おいて、TiO2、MnO2、ZnO2、LiO2等を適宜加えて溶け流
れ量を53〜65mmにすることも可能である。さらにまた、
上記継釉組成に顔料（Fe2O3 、Cr2O3 、CoO 等）を添加
して表面釉の色彩と調和させて美麗な外観を有する碍子
とすることも可能である。以下に本発明を実施例により
更に詳細に説明する。As the surface glaze, K 2 O + according to the Zegel formula is used.
Na 2 O 0.05 to 0.40 mol, CaO 0.23 to 0.45 mol, MgO 0.17 to
0.54 mol, and for these total 1.0 mol, Al 2 O
3 0.60 to 0.90 mol, SiO 2 4.30 to 6.80 mol, and the coefficient of thermal expansion at 20 to 800 ℃ is (4.1 to 6.1) ×
A glaze of 10 -6 / ° C is used. In addition, the composition of the glaze with a melt flow rate of 53-65 mm as the glaze is, for example, the Zegel formula.
K 2 O + Na 2 O 0.1 to 0.5 mol, CaO 0.2 to 0.5 mol, MgO
0.1 to 0.5 mol, BaO 0 to 0.5 mol, and Al 2 O 3 0.5 to 1.0 mol, SiO 2 4.0 to
The composition is 7.0 mol. Further, in the above Tsugi釉composition, it is possible to make the TiO 2, MnO 2, ZnO 2, LiO appropriately added melt flow amount or the like 2 to 53～65Mm. Furthermore,
It is also possible to add a pigment (Fe 2 O 3 , Cr 2 O 3 , CoO, etc.) to the above glaze composition to match the color of the surface glaze to obtain an insulator having a beautiful appearance. Hereinafter, the present invention will be described in more detail with reference to Examples.
【００１２】[0012]
【実施例】まず第１図に示すように、上記の通りの組成
の磁器によりテスト用の上下の磁器碍子(1) 、(2) を製
造した。その外径は220mm 、肉厚30mm、長さ1800mmであ
る。そして上側の磁器碍子(1) の下端面を水平面に対し
て25°の角度でＶ字状にカットし、また下側の磁器碍子
(2) の上端面を水平面に対して23°の角度でＶ溝状にカ
ットした。各磁器碍子(1) 、(2) の表面には、予め次表
に示される組成の表面釉が施釉されている。EXAMPLE First, as shown in FIG. 1, upper and lower porcelain insulators (1) and (2) for testing were manufactured by using the porcelain having the above composition. Its outer diameter is 220 mm, wall thickness 30 mm, and length 1800 mm. Then, the lower end surface of the upper porcelain insulator (1) is cut into a V shape at an angle of 25 ° to the horizontal plane, and the lower porcelain insulator (1) is also cut.
The upper end surface of (2) was cut into a V groove at an angle of 23 ° with respect to the horizontal plane. The surface of each porcelain insulator (1), (2) is glazed in advance with the composition shown in the following table.
【００１３】これらの磁器碍子(1) 、(2) を表１にNo.
１〜No. ９として示した各種の継釉(3) により第２図の
通り接合し、接合磁器碍子を製造した。No. １〜No. ２
は従来の継釉、No. ３〜No. ９は本発明の請求項２の数
値範囲内の継釉、No. 10〜No.11 は請求項２の数値範囲
を外れる継釉である。このときの各継釉(3) の塗布厚さ
は500 μ程度とし、焼成温度はいずれも1300±5 ℃であ
る。なお表面釉及び各継釉(3)の溶け流れ量は表中に示
した通りである。Table 1 shows these porcelain insulators (1) and (2).
Bonded porcelain insulators were manufactured by bonding as shown in FIG. 2 with various kinds of glazing (3) shown as No. 1 to No. 9. No. 1 to No. 2
Is a conventional glazing, No. 3 to No. 9 are glazing within the numerical range of claim 2 of the present invention, and No. 10 to No. 11 are glazing outside the numerical range of claim 2. At this time, the coating thickness of each glazing (3) is about 500 μ, and the firing temperature is 1300 ± 5 ° C. The amount of melt flow of surface glaze and each glaze (3) is as shown in the table.
【表１】 [Table 1]
【００１４】このようにして得られた接合磁器碍子の継
部の曲げ強度をアムスラー式強度試験機を用いて測定
し、その結果を表中に記した。「継部曲げ強度」の欄の
Ａは生素地の碍子に継釉を塗布して焼成した場合の強度
を示し、Ｂは一度焼成した碍子を継釉で接合した場合の
強度を示している。The bending strength of the joint portion of the thus-obtained bonded porcelain insulator was measured using an Amsler type strength tester, and the results are shown in the table. In the column of "joint bending strength", A shows the strength when the glazed porcelain was applied and fired, and B shows the strength when the once fired porcelain was joined with the glazing.
【００１５】この表から明らかなように、表面釉よりも
溶け流れ量の小さい従来の継釉を用いたNo. １〜No. ２
の接合磁器碍子は継部曲げ強度が650kgf/cm2以下である
に対して、本発明の接合磁器碍子の継部曲げ強度はいず
れも710kgf/cm2を越えている。特に溶け流れ量が53〜65
mmの継釉を用いたNo. ３〜No. ９の場合には、継部曲げ
強度は820kgf/cm2を越えた優れた値となる。As is clear from this table, No. 1 to No. 2 using the conventional glazing having a smaller melt flow amount than the surface glazing.
The joint porcelain insulator of No. 1 has a joint bending strength of 650 kgf / cm 2 or less, whereas the joint porcelain insulators of the present invention each have a joint bending strength of more than 710 kgf / cm 2 . Especially the melt flow rate is 53 to 65
In the case of No. 3 to No. 9 using mm glaze, the joint bending strength is an excellent value exceeding 820 kgf / cm 2 .
【００１６】またNo. 10〜No. 11のものは継部から継釉
があふれ出てやや外観が悪くなるが、No. ３〜No. ９の
ものは外観も良好であった。Further, No. 10 to No. 11 had a slightly bad appearance due to overflow of the glaze from the joint, but No. 3 to No. 9 had a good appearance.
【００１７】[0017]
【発明の効果】以上に説明したように、本発明の接合磁
器碍子は表面釉が施釉された複数の磁器碍子を、その表
面釉よりも大きい溶け流れ量を持つ継釉を用いて接合し
たものであるから、継釉の内部に残留する気泡数を減少
させることができ、また継釉と磁器碍子との反応性を向
上させることができるので、十分な接合強度を得ること
ができる。しかも本発明の接合磁器碍子は、溶け流れ量
を制御することにより外観も良好とすることができる。
よって本発明は従来の問題点を解消した接合磁器碍子と
して、産業の発展に寄与するところは極めて大きいもの
である。As described above, the joined porcelain insulator of the present invention is obtained by joining a plurality of porcelain porcelains having a surface glazed by using a joint glazing having a larger melt flow amount than the surface glazing. Therefore, it is possible to reduce the number of bubbles remaining inside the glazing, and to improve the reactivity between the glazing and the porcelain insulator, so that sufficient bonding strength can be obtained. Moreover, the appearance of the bonded porcelain insulator of the present invention can be improved by controlling the melt flow rate.
Therefore, the present invention has a great contribution to industrial development as a bonded porcelain insulator that solves the conventional problems.
【００１８】[0018]
【図１】接合前の磁器碍子を示す断面図である。FIG. 1 is a cross-sectional view showing a porcelain insulator before joining.
【図２】接合後の磁器碍子を示す断面図である。FIG. 2 is a cross-sectional view showing a porcelain insulator after joining.
１ 磁器碍子 ２ 磁器碍子 ３ 継釉 1 Porcelain insulator 2 Porcelain insulator 3 Glazed
Claims (2)
の表面釉よりも大きい溶け流れ量を持つ継釉を用いて接
合したことを特徴とする接合磁器碍子。1. A bonded porcelain insulator characterized in that a plurality of porcelain porcelains having a surface glazing are joined together by using a joint glazing having a larger melt flow amount than the surface glazing.
項１記載の接合磁器碍子。2. The bonded porcelain insulator according to claim 1, wherein a splice having a melt flow rate of 53 to 65 mm is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2410500A JPH0640456B2 (en) | 1990-12-13 | 1990-12-13 | Bonded porcelain insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2410500A JPH0640456B2 (en) | 1990-12-13 | 1990-12-13 | Bonded porcelain insulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04215214A JPH04215214A (en) | 1992-08-06 |
| JPH0640456B2 true JPH0640456B2 (en) | 1994-05-25 |
Family
ID=18519660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2410500A Expired - Lifetime JPH0640456B2 (en) | 1990-12-13 | 1990-12-13 | Bonded porcelain insulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0640456B2 (en) |
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| JP4031895B2 (en) * | 2000-02-09 | 2008-01-09 | 日本特殊陶業株式会社 | Metal-ceramic joint using ceramic member with glaze layer and vacuum switch unit using the same |
| CN101901652B (en) * | 2010-05-25 | 2011-11-09 | 中国西电电气股份有限公司 | Method for separating organic bonding porcelain bushing without damage |
| CN113416057B (en) * | 2021-07-08 | 2022-05-31 | 萍乡强盛电瓷制造有限公司 | Production raw material of disc-shaped insulator with good insulating property and preparation method |
-
1990
- 1990-12-13 JP JP2410500A patent/JPH0640456B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108503218A (en) * | 2018-05-24 | 2018-09-07 | 醴陵华鑫电瓷科技股份有限公司 | A kind of organic bonding method of insulated porcelain sleeve |
| CN108503218B (en) * | 2018-05-24 | 2020-12-29 | 醴陵华鑫电瓷科技股份有限公司 | Organic bonding method for insulating porcelain bushing |
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