JPH0128454Y2 - - Google Patents
Info
- Publication number
- JPH0128454Y2 JPH0128454Y2 JP9068582U JP9068582U JPH0128454Y2 JP H0128454 Y2 JPH0128454 Y2 JP H0128454Y2 JP 9068582 U JP9068582 U JP 9068582U JP 9068582 U JP9068582 U JP 9068582U JP H0128454 Y2 JPH0128454 Y2 JP H0128454Y2
- Authority
- JP
- Japan
- Prior art keywords
- glass
- resin
- electrode
- sensitive film
- face
- 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
- 239000011521 glass Substances 0.000 claims description 34
- 239000011347 resin Substances 0.000 claims description 24
- 229920005989 resin Polymers 0.000 claims description 24
- 229910021607 Silver chloride Inorganic materials 0.000 claims description 7
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 claims description 7
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 229940096017 silver fluoride Drugs 0.000 description 2
- REYHXKZHIMGNSE-UHFFFAOYSA-M silver monofluoride Chemical compound [F-].[Ag+] REYHXKZHIMGNSE-UHFFFAOYSA-M 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- RCTYPNKXASFOBE-UHFFFAOYSA-M chloromercury Chemical compound [Hg]Cl RCTYPNKXASFOBE-UHFFFAOYSA-M 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
Description
【考案の詳細な説明】
本考案はガラス電極に関するものである。ガラ
ス電極は工業的あるいは実験室的に溶液のPH値
を測定するためにもつともよく利用されている。
従来このガラス電極には、リチウム系ガラスなど
の感応膜の内部にりん酸塩溶液や塩酸の如き電解
液を入れ、水銀、甘汞（HgCl2）および塩化カリ
ウム液からなる甘汞電極を浸漬してプラスチツク
のキヤツプをかぶせたものや、このような内液式
とは別に例えば特公昭53−318号に示されるよう
に固体式ガラス電極が知られている。本考案はこ
の固体式ガラス電極の改良に関するものである。
すなわち従来の固体式ガラス電極は、先ず第１図
に示すように、リチウム−シリカ系のガラス棒を
スライスして、作成した直径３〜30mm、厚さ50〜
500ミクロンの円板状のガラス感応膜１の片面に、
10％ふつ化銀溶液を塗布乾燥する。このままでは
ふつ化銀層がきわめてうすいので、この処理を数
回操返した後、５％塩化リチウム溶液に浸漬して
約20時間放置し、起電力をとりだすための塩化銀
層２を形成させる。これを水洗してから300℃で
２時間にわたつてアルゴンガスあるいはちつ素ガ
ス中で熱処理して塩化銀層２とガラス感応膜１と
の密着性を高める。次いで塩化銀層２にシルバー
ペイントのような導電性樹脂３を介してリード線
４を接続し、この上から外装用の樹脂５を流して
硬化させ、棒状のガラス電極とする。然しこのよ
うな構造のガラス電極を被検液に浸漬して長時間
使用していると、ガラス感応膜１と樹脂５との境
界の〓間から被検液が次第に浸入してガラス電極
の特性を劣化させる。比較的高温度の被検液の場
合にはその浸潤が更に著しくなる。本考案はこの
ような欠点を解消したガラス電極を提供しようと
するものである。[Detailed Description of the Invention] The present invention relates to a glass electrode. Glass electrodes are often used industrially or in the laboratory to measure the pH value of solutions.
Conventionally, this glass electrode is made by placing an electrolytic solution such as a phosphate solution or hydrochloric acid inside a sensitive membrane made of lithium-based glass, and then immersing an electrolytic solution made of mercury, HgCl 2 and potassium chloride solution. In addition to the internal liquid type, solid glass electrodes are also known, such as those covered with plastic caps and solid glass electrodes, as shown in Japanese Patent Publication No. 53-318. The present invention relates to improvements to this solid-state glass electrode.
In other words, conventional solid-state glass electrodes are made by first slicing a lithium-silica glass rod, with a diameter of 3 to 30 mm and a thickness of 50 to 50 mm, as shown in Figure 1.
On one side of the 500 micron disk-shaped glass sensitive membrane 1,
Apply 10% silver fluoride solution and dry. The silver fluoride layer is extremely thin as it is, so after repeating this process several times, it is immersed in a 5% lithium chloride solution and left for about 20 hours to form a silver chloride layer 2 for extracting the electromotive force. After washing with water, this is heat-treated in argon gas or nitrogen gas at 300° C. for 2 hours to improve the adhesion between the silver chloride layer 2 and the glass sensitive film 1. Next, a lead wire 4 is connected to the silver chloride layer 2 via a conductive resin 3 such as silver paint, and an exterior resin 5 is poured over the lead wire 5 and hardened to form a rod-shaped glass electrode. However, when a glass electrode with such a structure is immersed in a test liquid and used for a long time, the test liquid gradually enters from between the boundary between the glass sensitive film 1 and the resin 5, and the characteristics of the glass electrode change. deteriorate. In the case of a relatively high temperature test liquid, the infiltration becomes even more significant. The present invention aims to provide a glass electrode that eliminates these drawbacks.
本考案のガラス電極は、ガラス感応膜に塩化銀
層を形成し導電性樹脂を介してリード線を接続し
た電極を、ガラス感応膜が端面から露呈するよう
に樹脂で被覆し、樹脂端面のガラス感応膜との境
界上に環状のシール部材を配置して、樹脂の端部
に設けた保護環の開口縁で押圧固定したものであ
つて、樹脂端面の樹脂とガラス感応膜との間に〓
間を生じても、その境界上に固定された環状のシ
ール部材によつて閉塞され、被検液の浸入するお
それがない。 In the glass electrode of the present invention, a silver chloride layer is formed on a glass sensitive film and a lead wire is connected through a conductive resin.The electrode is coated with a resin so that the glass sensitive film is exposed from the end face, and the glass on the resin end face is coated with a resin so that the glass sensitive film is exposed from the end face. An annular sealing member is placed on the boundary with the sensitive membrane, and is pressed and fixed by the opening edge of a protective ring provided at the end of the resin.
Even if a gap occurs, it is closed by an annular sealing member fixed on the boundary, and there is no risk of the test liquid infiltrating.
以下本考案の実施例を図面に基づいて説明す
る。 Embodiments of the present invention will be described below based on the drawings.
第２図において第１図と同じ部分には同一符号
を付す。ガラス感応膜１に塩化銀層２を形成し導
電性樹脂３を介してリード線４を接続した電極の
周囲に注入され、円柱状に硬化した外装樹脂５の
一方の端面には、ガラス感応膜１が端面と面一に
露呈している。樹脂端面の樹脂５とガラス感応膜
１との境界上には弾性材のＯリング６が配置され
ている。Ｏリング６は環状のパツキンに代えても
よい。７は樹脂５の端周に螺着した保護環であつ
て、端部内周にフランジ状の開口縁７ａが形成さ
れており、前記Ｏリング６は、この開口縁７ａに
より樹脂端面の樹脂５とガラス感応膜１との境界
上に押圧固定され、境界の〓間を確実に閉塞して
いる。 In FIG. 2, the same parts as in FIG. 1 are given the same reference numerals. A silver chloride layer 2 is formed on a glass sensitive film 1, and a glass sensitive film is injected around the electrode to which a lead wire 4 is connected via a conductive resin 3, and hardened into a cylindrical shape. 1 is exposed flush with the end surface. An O-ring 6 made of an elastic material is arranged on the boundary between the resin 5 and the glass sensitive film 1 on the resin end face. The O-ring 6 may be replaced with an annular packing. Reference numeral 7 denotes a protective ring screwed onto the end circumference of the resin 5, and a flange-like opening edge 7a is formed on the inner circumference of the end, and the O-ring 6 is connected to the resin 5 on the end surface of the resin by this opening edge 7a. It is pressed and fixed on the boundary with the glass sensitive membrane 1, and the gap between the boundaries is reliably closed.
本考案のガラス電極によれば、電極を被覆した
樹脂の端面の、この端面に露呈する電極のガラス
感応膜との境界上に環状のシール部材を押圧固定
したので、この境界に〓間があつても被検液が内
部に浸入してガラス電極の特性劣化を招くおそれ
が解消する。また、樹脂端部に設けられた保護環
の前記環状のシール部材を押圧固定する開口縁
が、樹脂端面の周側前面に突出するので、この端
面に露呈するガラス感応膜が保護され、外部の衝
撃によつて破損することも少なくなる。 According to the glass electrode of the present invention, since the annular sealing member is pressed and fixed on the boundary of the end face of the resin covering the electrode with the glass sensitive film of the electrode exposed on this end face, there is a gap at this boundary. This eliminates the possibility that the test liquid may enter the interior of the glass electrode and cause deterioration of the characteristics of the glass electrode. In addition, the opening edge of the protective ring provided at the resin end that presses and fixes the annular sealing member protrudes from the circumferential front surface of the resin end surface, so the glass sensitive film exposed on this end surface is protected and the external It is also less likely to be damaged by impact.
第１図は従来例の断面図、第２図は本考案の実
施例を示す断面図である。
１……ガラス感応膜、２……塩化銀層、３……
導電性樹脂、４……リード、５……樹脂、６……
Ｏリング、７……保護環、７ａ……開口縁。
FIG. 1 is a sectional view of a conventional example, and FIG. 2 is a sectional view showing an embodiment of the present invention. 1...Glass sensitive film, 2...Silver chloride layer, 3...
Conductive resin, 4... Lead, 5... Resin, 6...
O-ring, 7...protective ring, 7a...opening edge.
Claims (1)
介してリード線を接続した電極を、ガラス感応膜
が端面から露呈するように樹脂で被覆し、樹脂端
面のガラス感応膜との境界上に環状のシール部材
を配置して、樹脂の端部に設けた保護環の開口縁
で押圧固定したガラス電極。 An electrode with a silver chloride layer formed on a glass sensitive film and a lead wire connected through a conductive resin is coated with resin so that the glass sensitive film is exposed from the end face, and the electrode is coated with a resin on the boundary with the glass sensitive film on the resin end face. A glass electrode with an annular sealing member arranged and fixed by pressing with the opening edge of a protective ring provided at the end of the resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9068582U JPS58191558U (en) | 1982-06-16 | 1982-06-16 | glass electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9068582U JPS58191558U (en) | 1982-06-16 | 1982-06-16 | glass electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58191558U JPS58191558U (en) | 1983-12-20 |
| JPH0128454Y2 true JPH0128454Y2 (en) | 1989-08-30 |
Family
ID=30099165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9068582U Granted JPS58191558U (en) | 1982-06-16 | 1982-06-16 | glass electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58191558U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3517944A1 (en) * | 2018-01-30 | 2019-07-31 | Mettler-Toledo GmbH | Measurement unit for an ion-sensitive solid-state electrode and ion-sensitive electrode |
| EP3517943A1 (en) * | 2018-01-30 | 2019-07-31 | Mettler-Toledo GmbH | Ion-sensitive glass electrode, measurement unit and method for manufacturing |
-
1982
- 1982-06-16 JP JP9068582U patent/JPS58191558U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58191558U (en) | 1983-12-20 |
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