JPS592343B2 - Method for measuring the amount of metallic Al in a composite plated coating layer - Google Patents
Method for measuring the amount of metallic Al in a composite plated coating layerInfo
- Publication number
- JPS592343B2 JPS592343B2 JP53087049A JP8704978A JPS592343B2 JP S592343 B2 JPS592343 B2 JP S592343B2 JP 53087049 A JP53087049 A JP 53087049A JP 8704978 A JP8704978 A JP 8704978A JP S592343 B2 JPS592343 B2 JP S592343B2
- Authority
- JP
- Japan
- Prior art keywords
- amount
- coating layer
- measuring
- metallic
- plated coating
- 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
Landscapes
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Description
【発明の詳細な説明】
この発明は複合めつき法により複合めつき被覆層中に共
析含有した金属Ａｌ（以下Ａｌと略す）量を簡単な装置
で迅速に測定する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for quickly measuring the amount of metal Al (hereinafter abbreviated as Al) eutectoidally contained in a composite plating coating layer using a composite plating method using a simple device.
複合めつき被覆層中にＡｌが共析含有（以下共析と略す
）すると、その共析量に応じて、耐食性あるいは耐酸化
性などの表面特性が顕著に改善されることについては、
すでに特開昭５１一１４３５３４号あるいは特開昭５３
−１８４３５号各公報で開示した。Regarding the fact that when Al is eutectoid contained in the composite plated coating layer (hereinafter abbreviated as eutectoid), surface properties such as corrosion resistance and oxidation resistance are significantly improved depending on the amount of eutectoid.
JP-A-51-143534 or JP-A-53
-18435 disclosed in each publication.
このような複合めつき被覆層中のＡｌ量を測定する方法
として、従来から容量法、重量法による化学分析あるい
は螢光Ｘ線法、原子吸光法、比色法による機器分析など
が用いられているが、それぞれ次のような不利がある。
すなわち、容量法、重量法、原子吸光法、比色法などに
おいては、複合めつき被覆層を酸などで溶解し、溶液状
態としたのち、分析操作を行なわねばならず、さらにＡ
ｉ分析を行なう上で、妨害となる元素、化合物を分離し
、あるいはマスキングするなどの複雑な操作が必要であ
わ、迅速にＡｌｌ共析量を測定することは困難である。
一方、螢光Ｘ線法では、Ａｉ共析量を迅速に測定するこ
とはできるが、装置が高価であり、保守、点検などの調
整を必要とし、据付場所（環境、スペースなど）にも押
動をうける。複合めつき被覆層を形成するマトリックス
としては、Ｚｎ、Ｓｎ、Ｐｂ、Ｃｄ、Ｃｒ、Ｍｎ、Ｎｉ
、Ｃｏ、Ｃｕ、Ｆｅ、Ａｇ、Ａｕなどの金属がある。Conventionally, methods for measuring the amount of Al in such a composite plated coating layer include chemical analysis using a volumetric method or gravimetric method, or instrumental analysis using a fluorescent X-ray method, atomic absorption method, or colorimetric method. However, each has the following disadvantages:
That is, in the volumetric method, gravimetric method, atomic absorption method, colorimetric method, etc., it is necessary to dissolve the composite plated coating layer with acid etc. to make it into a solution state, and then perform the analytical operation.
In performing i-analysis, complicated operations such as separating or masking interfering elements and compounds are required, and it is difficult to quickly measure the amount of All eutectoid.
On the other hand, with the fluorescent X-ray method, although it is possible to quickly measure the amount of Ai eutectoid, the equipment is expensive, requires adjustments such as maintenance and inspection, and is also difficult to install (environment, space, etc.). be moved. The matrix forming the composite plating layer includes Zn, Sn, Pb, Cd, Cr, Mn, and Ni.
, Co, Cu, Fe, Ag, and Au.
これらの金属のなかで、Ｚｎ、Ｓｎ、Ｐｂ、ＣｄぱＰＨ
１２以上の強アルカリ溶液中で徐々に溶解するが、他の
金属はほとんど溶解しない゜一方、金属Ａｌはアルカリ
溶液つまわ水酸化ナトリウム又ぱ水酸化カリウムの１Ｎ
〜１０Ｎ濃度の水溶液に極めて活性で、水素ガスを発生
しながら激しく溶解する。したがつて、上記のマトリッ
クス中にＡｌが共析した複合めつき被覆層を上記の強ア
ルカリ溶液中に浸漬した場合、１〜５分以内の短時間に
発生するガス量はほとんどＡ１１の溶解によるものであ
わ、一方、マトリックスの溶解によるガス発生量は無視
できることを知見した。Among these metals, Zn, Sn, Pb, Cd, PH
It gradually dissolves in a strong alkaline solution of 12 or higher, but other metals hardly dissolve.On the other hand, metal Al is dissolved in an alkaline solution of 1N sodium hydroxide or potassium hydroxide.
It is extremely active in aqueous solutions with a concentration of ~10N, and dissolves violently while generating hydrogen gas. Therefore, when the composite plated coating layer in which Al is eutectoided in the above matrix is immersed in the above strong alkaline solution, the amount of gas generated within a short period of 1 to 5 minutes is mostly due to the dissolution of A11. On the other hand, we found that the amount of gas generated due to matrix dissolution can be ignored.
この発明は上記の知見をもとに、前述のように不利、欠
点を解決することを目的とするもので、複合めつき被覆
層中のＡｌ共析量を測定する方法において、該複合めつ
き被覆材をアルカリ溶液に浸漬し、上記の時間内に発生
するガス量を測定することを特徴とするものである。This invention is based on the above knowledge, and aims to solve the disadvantages and drawbacks as mentioned above. The method is characterized in that the coating material is immersed in an alkaline solution and the amount of gas generated within the above-mentioned period of time is measured.
ここで、アルカリ溶液はすでに触れた水酸化ナトリウム
、水酸化カリウムなどの強アルカリ性水溶液がよく、そ
の濃度は１Ｎ〜１０Ｎの範囲が必要である。Here, the alkaline solution is preferably a strong alkaline aqueous solution such as sodium hydroxide or potassium hydroxide mentioned above, and its concentration needs to be in the range of 1N to 10N.
これよりもアルカリ濃度が低ｂ場合、Ａｌ溶解速度が遅
くなり、複合めつき被覆層中のＡｌ共析量を測定するの
に長時間を必要とする。一方、濃共が高くなわすぎると
、Ａｌ溶解速度は速くなるが、液調整に多量のアルカリ
が必要であるとともに、調整時の発熱が激しくなるなど
の不利がある。ガス発生量の測定時間は１〜５分が必要
であり、これよりも測定時間が短い場合、Ａｌ共析量の
測定誤差が大きく、一方、測定時間が長くなｖすぎると
、能率の低下が顕著になる。ガス発生量の測定装置は発
生したガスを捕集し、その量（体積または圧力）を測定
できるものであれば、とくに測定方法に限定されない。
たとえば、強アルカリ溶液を入れた容器と水を満たした
ビユーレツトを三方コツクで接続した装置、あるいはビ
ユーレツトのかわりにガス圧変換器とレコーダーを取シ
付けた装置などでもよい。このような、ガス発生量の測
定装置は簡単に組立てることができ、保守、点検などの
調整をほとんど必要とせず、据付場所の制約をうけるこ
とはほとんどない。When the alkali concentration is lower than this, the Al dissolution rate becomes slow and it takes a long time to measure the amount of Al eutectoid in the composite plated coating layer. On the other hand, if the concentration is too high, the Al dissolution rate will increase, but there will be disadvantages such as a large amount of alkali being required for liquid preparation and increased heat generation during preparation. The measurement time for the amount of gas generated is 1 to 5 minutes; if the measurement time is shorter than this, the measurement error in the amount of Al eutectoid will be large; on the other hand, if the measurement time is too long, the efficiency will decrease. become noticeable. The measuring device for measuring the amount of gas generated is not particularly limited to a measuring method as long as it can collect the gas generated and measure its amount (volume or pressure).
For example, a device in which a container containing a strong alkaline solution and a burette filled with water are connected via a three-way connection, or a device in which a gas pressure transducer and a recorder are attached instead of the burette may be used. Such a gas generation amount measuring device can be easily assembled, requires almost no maintenance, inspection, or other adjustments, and is hardly subject to any restrictions on installation location.
次にこの発明を実施例について、さらに詳細に説明する
。Next, the present invention will be described in more detail with reference to examples.
実施例
電気Ｚｎめつき液にＡノ粉末を添加して調製した複合め
つき液を電解浴として、鋼板の片面にＺｎ−Ａｌ複合め
つき被覆を施した三種の試験材を作製した。Example Three types of test materials were prepared by applying a Zn--Al composite plating coating to one side of a steel plate using a composite plating solution prepared by adding A powder to an electric Zn plating solution as an electrolytic bath.
複合めつき被覆層の成分は原子吸光法による分析の結果
、Ｚｎ付着量１５，３０，５２ｆ１／０１′、Ａｌ共析
量０．９〜６．８９／ｍ″であつた。試験材から１０ｃ
Ｔｉ１（２５Ｘ４０ｍ１）の試験片を採取し、２５゜±
１℃の５ＮＮに肘溶液中で、３分間のガス発生量を測定
した。結果を第１図に示す。第１図から明らかなように
、原子吸光法により分析したＡｌ分析量とガス発生量と
は極めてよい一致を示すことがわかつた。さらに、ガス
発生量はＺｎ付着量（マトリツクス）の影響をほとんど
うけないことがわかつた。なお、同一の材料を螢光Ｘ線
で分析したところ、Ｚｎ付着量によつてＡｌのカウント
数力吠きく変化し、マトリツクスの影響を無視できない
ことがわかつた。As a result of analysis by atomic absorption spectrometry, the components of the composite plated coating layer were found to have a Zn adhesion amount of 15, 30, 52 f1/01' and an Al eutectoid amount of 0.9 to 6.89/m''.
A test piece of Ti1 (25 x 40 m1) was taken, and the angle of 25°±
The amount of gas generated during 3 minutes was measured in 5NN solution at 1°C. The results are shown in Figure 1. As is clear from FIG. 1, it was found that the amount of Al analyzed by atomic absorption spectrometry and the amount of gas generated were in very good agreement. Furthermore, it was found that the amount of gas generated was hardly affected by the amount of Zn deposited (matrix). Incidentally, when the same material was analyzed by fluorescent X-rays, it was found that the Al count value changed dramatically depending on the amount of Zn deposited, and it was found that the influence of the matrix could not be ignored.
かくしてこの発明によれば、複合めつき被覆層中の金属
Ａｌ量を高い精度で簡便に測定することができる。Thus, according to the present invention, the amount of metallic Al in the composite plated coating layer can be easily measured with high accuracy.
第１図は複合めつき被覆層中のＡＩ！共析量と５ＮＮａ
０Ｈ浸漬３分後のガス発生量の関係を示すグラフである
。Figure 1 shows AI in the composite plating layer! Eutectoid amount and 5NNa
It is a graph showing the relationship between the amount of gas generated after 3 minutes of 0H immersion.
Claims (1)
る方法において、該複合めつき被覆材を水酸化ナトリウ
ム又は水酸化カリウムの１Ｎ〜１０Ｎ濃度の水溶液中に
浸漬し、１〜５分以内に発生するガス量と含有Ａｌ量と
の相関によつて定量することを特徴とする複合めつき被
覆層中の金属Ａｌ量測定方法。1. In the method of measuring the amount of metallic Al contained in a composite plating coating layer, the composite plating coating material is immersed in an aqueous solution of sodium hydroxide or potassium hydroxide with a concentration of 1N to 10N, and the method is performed within 1 to 5 minutes. A method for measuring the amount of metallic Al in a composite plated coating layer, characterized in that the amount of metallic Al in a composite plated coating layer is determined by the correlation between the amount of gas generated and the amount of Al contained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53087049A JPS592343B2 (en) | 1978-07-19 | 1978-07-19 | Method for measuring the amount of metallic Al in a composite plated coating layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53087049A JPS592343B2 (en) | 1978-07-19 | 1978-07-19 | Method for measuring the amount of metallic Al in a composite plated coating layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5515005A JPS5515005A (en) | 1980-02-01 |
| JPS592343B2 true JPS592343B2 (en) | 1984-01-18 |
Family
ID=13904076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53087049A Expired JPS592343B2 (en) | 1978-07-19 | 1978-07-19 | Method for measuring the amount of metallic Al in a composite plated coating layer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS592343B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0253749U (en) * | 1988-10-07 | 1990-04-18 | ||
| JPH02116457U (en) * | 1989-03-02 | 1990-09-18 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57191998A (en) * | 1981-05-22 | 1982-11-25 | Japan Atomic Energy Res Inst | Controller for neutral particle incident unit |
| JP4769045B2 (en) * | 2005-08-10 | 2011-09-07 | 積水化学工業株式会社 | Vacuum injection molding method for fiber reinforced resin molded products |
| CN102460266B (en) | 2009-04-16 | 2014-10-15 | 奥林巴斯医疗株式会社 | objective optical system |
| WO2011070930A1 (en) | 2009-12-11 | 2011-06-16 | オリンパスメディカルシステムズ株式会社 | Objective optical system |
| CN104198329B (en) * | 2014-09-05 | 2016-07-06 | 天津立中合金集团有限公司 | A kind of method quick and precisely detecting metal aluminum content in aluminum ash and device |
-
1978
- 1978-07-19 JP JP53087049A patent/JPS592343B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0253749U (en) * | 1988-10-07 | 1990-04-18 | ||
| JPH02116457U (en) * | 1989-03-02 | 1990-09-18 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5515005A (en) | 1980-02-01 |
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