JP7478293B2 - Anode-cathode device for use in metal corrosion testing and method of using same - Google Patents
Anode-cathode device for use in metal corrosion testing and method of using same Download PDFInfo
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- 230000007797 corrosion Effects 0.000 title claims description 47
- 238000005260 corrosion Methods 0.000 title claims description 47
- 238000012360 testing method Methods 0.000 title claims description 33
- 239000002184 metal Substances 0.000 title claims description 15
- 229910052751 metal Inorganic materials 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 61
- 238000001514 detection method Methods 0.000 claims description 51
- 239000002253 acid Substances 0.000 claims description 28
- 238000003825 pressing Methods 0.000 claims description 15
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000012805 post-processing Methods 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims 7
- 238000007664 blowing Methods 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 238000011065 in-situ storage Methods 0.000 description 11
- 239000003792 electrolyte Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 4
- 235000009161 Espostoa lanata Nutrition 0.000 description 3
- 240000001624 Espostoa lanata Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006056 electrooxidation reaction Methods 0.000 description 3
- 229910000619 316 stainless steel Inorganic materials 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
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- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000000866 electrolytic etching Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009859 metallurgical testing Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 239000007921 spray 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
- 238000003466 welding Methods 0.000 description 1
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/02—Etching
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/32—Polishing; Etching
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Description
本発明は、電食の技術分野に属し、具体的には、現場金相電食用の陽極－陰極装置及びその使用方法に関する。 The present invention is in the technical field of electrolytic corrosion, and more specifically, relates to an anode-cathode device for in-situ metallurgical electrolytic corrosion and a method for using the same.
金相電食は、顕微鏡下で検出サンプルに対して組織形態の観察及び分析を行うために、電気化学的原理を利用して検出サンプルに対して電食を行うことである。現在、従来技術で使用される金相電食装置の陰極は一般に１つの金属板であり、陽極はクリップによってサンプルに接続される。電食プロセスでは、サンプル及び陰極金属板を電解槽に入れ、電源を入れてサンプルの電食を実現する。しかしながら、このような陰極－陽極装置は、現場で大型加工物において金相試験を行うことができない。現場での大型加工物の金相試験に適合させるための従来技術として、シンプルで且つ大型加工物の現場金相試験に適する陽極－陰極装置がある。陰極において脱脂綿が設けられ、脱脂綿を利用して電解液を吸着及び貯蔵することにより、電解液を大型加工物の検出面と充分に接触させることができる。しかしながら、実際の試験プロセスでは、脱脂綿が電解液を吸着しきれずに電解液が溢れる現象がある。脱脂綿は電解液によって腐食されて脆くなりやすく、且つ腐敗と分解が起こる。また、このような陽極－陰極装置は、電解液の種類を変えることができず、電食効果が均一でないなどの欠点がある。 Metallographic corrosion is the use of electrochemical principles to perform electrochemical corrosion on a detection sample in order to observe and analyze the tissue morphology of the detection sample under a microscope. Currently, the cathode of the metallographic corrosion device used in the prior art is generally a metal plate, and the anode is connected to the sample by a clip. In the electrochemical corrosion process, the sample and the cathode metal plate are placed in an electrolytic cell, and the power is turned on to realize the electrochemical corrosion of the sample. However, such a cathode-anode device cannot perform metallographic testing on large workpieces in the field. As a prior art for adapting to the metallographic testing of large workpieces in the field, there is an anode-cathode device that is simple and suitable for the on-site metallographic testing of large workpieces. Absorbent cotton is provided at the cathode, and the absorbent cotton is used to adsorb and store the electrolyte, so that the electrolyte can be sufficiently in contact with the detection surface of the large workpiece. However, in the actual testing process, there is a phenomenon in which the absorbent cotton cannot adsorb the electrolyte, causing the electrolyte to overflow. The absorbent cotton is easily corroded by the electrolyte and becomes brittle, and decay and decomposition occur. In addition, such anode-cathode devices have drawbacks, such as the inability to change the type of electrolyte and the non-uniform electrolytic corrosion effect.
本発明は、従来技術の上記の欠点をなくすためになされるものであって、目的は、現場金相電食用の陽極－陰極装置を提供することであり、当該装置は、操作しやすく、再現性に優れ、特に、大型加工物の現場金相試験に適する。 The present invention has been made to eliminate the above-mentioned shortcomings of the prior art, and has as its object to provide an anode-cathode apparatus for in-situ metallurgical erosion, which is easy to operate, has excellent reproducibility, and is particularly suitable for in-situ metallurgical testing of large workpieces.
本発明の別の目的は、現場金相電食用の陽極－陰極装置の使用方法を提供することである。 Another object of the present invention is to provide a method for using an anode-cathode device for in-situ metallurgical erosion.
本発明で上記の技術的課題を解決するために用いる技術的解決手段は次のとおりである。
電源と、陰極アセンブリと、陽極アセンブリとを含む現場金相電食用の陽極－陰極装置であって、前記陽極アセンブリは、前記電源の正極に電気的に接続され、前記陰極アセンブリは、陰極部品と、電食反応を行うための皿型反応容器とを含み、前記陰極部品は、前記電源の負極に電気的に接続され、前記皿型反応容器の中に電食酸ペーストが設けられ、前記陰極部品は、前記皿型反応容器の中に設けられ且つ常に前記電食酸ペーストと接触する。
The technical solutions used in the present invention to solve the above technical problems are as follows:
An anode-cathode apparatus for in-situ metallurgical electrolytic corrosion comprising a power source, a cathode assembly and an anode assembly, the anode assembly being electrically connected to a positive pole of the power source, the cathode assembly comprising a cathode part and a dish-shaped reaction vessel for carrying out an electrolytic corrosion reaction, the cathode part being electrically connected to a negative pole of the power source, an electrolytic acid paste being provided in the dish-shaped reaction vessel, and the cathode part being provided in the dish-shaped reaction vessel and constantly in contact with the electrolytic acid paste.
好ましくは、前記陰極アセンブリは、プッシュロッドをさらに含み、前記皿型反応容器の端面に、プッシュロッドが通過するための通し穴が設けられ、前記プッシュロッドの一端は前記陰極部品に接続され、前記プッシュロッドの他端はリード線によって前記電源の負極に接続され、前記プッシュロッドに押付部品が設けられ、前記押付部品は、前記通し穴より大きく且つ前記皿型反応容器の端面の外側に密着される。 Preferably, the cathode assembly further includes a push rod, and a through hole for the push rod to pass through is provided on the end surface of the dish-shaped reaction vessel, one end of the push rod is connected to the cathode part, and the other end of the push rod is connected to the negative pole of the power source by a lead wire, and a pressing part is provided on the push rod, and the pressing part is larger than the through hole and is in close contact with the outside of the end surface of the dish-shaped reaction vessel.
好ましくは、前記プッシュロッドにねじ構造が設けられ、前記押付部品はナットであり、前記ナットは、前記プッシュロッド上のねじ構造に係合して接続される。 Preferably, the push rod is provided with a threaded structure, the pressing part is a nut, and the nut engages and connects to the threaded structure on the push rod.
好ましくは、前記陰極アセンブリは、ガスケットをさらに含み、当該ガスケットは、前記プッシュロッドに穿設され、且つ、前記押付部品と前記皿型反応容器の端面の外側との間に位置する。 Preferably, the cathode assembly further includes a gasket, the gasket being drilled into the push rod and positioned between the pressing part and the outside of the end face of the dish-shaped reaction vessel.
好ましくは、前記陰極部品は、片状の構造として設けられ、且つ、前記皿型反応容器における通し穴より大きい。 Preferably, the cathode part is provided as a strip-like structure and is larger than the through hole in the dish-shaped reaction vessel.
好ましくは、前記皿型反応容器は、弾性を備える材料、例えば、ゴム、シリカゲルなどから作製される。 The dish-shaped reaction vessel is preferably made of an elastic material, such as rubber or silica gel.
好ましくは、前記陽極アセンブリは、上陽極部と、下陽極部とを含み、前記上陽極部は、前記下陽極部に設けられ、且つ、前記上陽極部の重量は前記下陽極部の重量より軽い。 Preferably, the anode assembly includes an upper anode portion and a lower anode portion, the upper anode portion is provided on the lower anode portion, and the weight of the upper anode portion is lighter than the weight of the lower anode portion.
現場金相電食用の陽極－陰極装置の使用方法であって、以下のステップを含む。
（１）陰極アセンブリの組み立て
プッシュロッドを皿型反応容器の通し穴の中に穿設し、前記プッシュロッドにナット及びガスケットを取り付け、ナットを回して位置を調整することにより、プッシュロッドの端部の陰極部品を皿型反応容器の内端面に密着させ、ナットを皿型反応容器の外端面に密着させ、
皿型反応容器に電食酸ペーストを充填し、電食酸ペーストは陰極部品と接触し、
リード線によってプッシュロッドの端部と電源の負極を接続させる。
（２）陽極アセンブリの組み立て
リード線によって陽極アセンブリと電源の正極を接続させる。
（３）電食試験の技術的準備
陽極アセンブリを試験対象の大型加工物に置き、陽極アセンブリを試験対象の大型加工物と接触させ、
陰極アセンブリの皿型反応容器を試験対象の大型加工物の検出面において倒置し、皿型反応容器の中の電食酸ペーストを前記検出面と接触させ、
プッシュロッドを押して、皿型反応容器の中の電食酸ペーストを前記検出面と充分に接触させる。
（４）電食試験
電源をオンにして、試験対象の大型加工物の前記検出面を電食酸ペーストと反応させることで、電食試験を行う。
A method of using an anode-cathode apparatus for in situ metallurgical erosion comprising the steps of:
(1) Assembling the cathode assembly: A push rod is drilled into a through hole of a dish-shaped reaction vessel, a nut and a gasket are attached to the push rod, and the nut is turned to adjust the position so that the cathode part at the end of the push rod is in close contact with the inner end surface of the dish-shaped reaction vessel, and the nut is in close contact with the outer end surface of the dish-shaped reaction vessel;
Fill the dish-shaped reaction vessel with an electrolytic acid paste, which is in contact with the cathode part;
A lead wire connects the end of the push rod to the negative terminal of a power source.
(2) Assembling the anode assembly Connect the anode assembly to the positive terminal of the power supply using a lead wire.
(3) Technical preparation of the electrolytic corrosion test: Place the anode assembly on the large workpiece to be tested, and bring the anode assembly into contact with the large workpiece to be tested;
The dish-shaped reaction vessel of the cathode assembly is inverted on the detection surface of the large workpiece to be tested, and the electrolytic acid paste in the dish-shaped reaction vessel is brought into contact with the detection surface;
The push rod is pushed to bring the electrolytic acid paste in the dish-shaped reaction vessel into full contact with the sensing surface.
(4) Electrolytic corrosion test: The power supply is turned on and the detection surface of the large workpiece to be tested is reacted with the electrolytic acid paste to perform an electrolytic corrosion test.
好ましくは、さらに大型加工物の検出面に対する前処理を含み、大型加工物の検出面に対する前処理を完了してから電食試験を行い、前処理は、以下のステップを含む。
（ａ）サンドペーパーで検出面に対して粗研磨、細研磨を行う。
（ｂ）検出面に対して仕上げ研磨を行う。
（ｃ）検出面を洗浄する。
Preferably, the method further includes a pretreatment for the detection surface of the large workpiece, and the electrolytic corrosion test is performed after the pretreatment for the detection surface of the large workpiece is completed, and the pretreatment includes the following steps:
(a) Use sandpaper to roughly polish and then finely polish the detection surface.
(b) The detection surface is subjected to a final polishing.
(c) Clean the detection surface.
好ましくは、さらに大型加工物の検出面に対する後処理を含み、後処理は、以下のステップを含む。
（ｉ）電食後の検出面を洗浄する。
（ｉｉ）洗浄後の検出面をブローして乾燥させる。
Preferably, the method further includes post-processing the detection surface of the large workpiece, the post-processing including the following steps.
(i) Cleaning the detection surface after electrolytic corrosion.
(ii) The detection surface after cleaning is blown dry.
従来技術と比べて、本発明の有益な効果は次のとおりである。
本発明は、電食酸ペーストの使用に装置が加わることで、加工物の検出面に対する電食酸ペーストの接触面積は常に変わらず、有効であることを保証し、且つ、流れる電解液の製品加工物に対する汚染及び検出者へのダメージは避けられ、加工物に対する金属組織の観察及び分析に備え、良好な電食効果を得て、試験の安全性を向上させるために役立つ。また、本発明の陽極アセンブリ及び負極アセンブリは、構造がシンプルで、体積は小さく、操作しやすく、且つ再現性に優れ、現場電食試験の効率を高めるために役立ち、従来技術の欠陥を効果的に解決している。
Compared with the prior art, the beneficial effects of the present invention are as follows:
The present invention uses an electrolytic acid paste and adds a device to ensure that the contact area of the electrolytic acid paste with the detection surface of the workpiece is always constant and effective, and avoids the contamination of the product workpiece by the flowing electrolyte and the damage to the detector, which provides for the observation and analysis of the metal structure of the workpiece, provides good electrolytic effect, and helps to improve the safety of the test. In addition, the anode assembly and the negative electrode assembly of the present invention have a simple structure, small volume, easy operation, and good reproducibility, which helps to improve the efficiency of on-site electrolytic corrosion testing, and effectively solves the deficiencies of the prior art.
以下、本発明の実施例の技術的解決手段をより明瞭に説明するために、実施例の説明で使用する図面を簡単に紹介する。言うまでもないが、以下に説明される図面は本発明の実施例の一部であり、当業者は、新規性のある作業をせず、これらの図面から他の図面を得ることができる。 In the following, in order to more clearly explain the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced. Needless to say, the drawings described below are part of the embodiments of the present invention, and those skilled in the art can derive other drawings from these drawings without performing any novel work.
以下、本発明の上記の目的、特徴及び効果が明瞭に理解されるよう、図面及び特定の実施形態を用いて本発明を詳細に説明する。なお、矛盾がない限り、本願の実施形態及び実施形態における特徴を互いに組み合わせることができる。以下の説明では本発明を充分に理解するために多くの詳細が述べられているが、説明される実施形態は本発明の実施形態の全てではなく、その一部に過ぎない。当業者が本発明の実施形態に基づいて、創造的な労力を要することなく得られる他の実施形態全てが、本発明の請求範囲に属する。 The present invention will be described in detail below with reference to drawings and specific embodiments so that the above-mentioned objects, features and effects of the present invention can be clearly understood. In addition, the embodiments and features of the embodiments of the present application can be combined with each other unless there is a contradiction. In the following description, many details are described to fully understand the present invention, but the described embodiments are only a part of the embodiments of the present invention, not all of them. All other embodiments that a person skilled in the art can obtain based on the embodiments of the present invention without requiring creative effort belong to the scope of the claims of the present invention.
特に定義がない限り、本明細書で使用される技術及び科学用語の全てが当業者の一般的な理解と同じ意味を有する。本明細書では、本発明の明細書で使用される用語は特定の実施形態を説明するために用いられ、本発明を限定しようとするものではない。 Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. In this specification, the terms used in the present invention are used to describe specific embodiments and are not intended to limit the present invention.
（実施例１）
図１を参照すると、本実施例は、電源１と、陰極アセンブリと、陽極アセンブリとを含む現場金相電食用の陽極－陰極装置を開示し、本実施例の電源１として、直流電源を用いる。陽極アセンブリは、電源１の正極に電気的に接続され、陰極アセンブリは、陰極部品６と、電食反応を行うための皿型反応容器７とを含み、陰極部品６は、電源１の負極に電気的に接続され、皿型反応容器７の中に電食酸ペーストが設けられ、陰極部品６は、皿型反応容器７の中に設けられ、且つ常に電食酸ペーストと接触する。陰極アセンブリは、プッシュロッド８をさらに含み、皿型反応容器７の端面に、プッシュロッド８が通過するための通し穴が設けられ、プッシュロッド８の一端は陰極部品６に接続され、プッシュロッド８の他端はリード線によって電源１の負極に接続され、プッシュロッド８に押付部品４が設けられ、押付部品４は、通し穴より大きく且つ皿型反応容器７の端面の外側に密着される。
Example 1
1, this embodiment discloses an anode-cathode device for in-situ metallurgical electrolytic corrosion, which includes a power source 1, a cathode assembly, and an anode assembly, and a DC power source is used as the power source 1 in this embodiment. The anode assembly is electrically connected to the positive pole of the power source 1, and the cathode assembly includes a cathode part 6 and a dish-shaped reaction vessel 7 for electrolytic corrosion reaction, the cathode part 6 is electrically connected to the negative pole of the power source 1, an electrolytic acid paste is provided in the dish-shaped reaction vessel 7, and the cathode part 6 is provided in the dish-shaped reaction vessel 7 and is always in contact with the electrolytic acid paste. The cathode assembly further includes a push rod 8, and a through hole is provided on the end surface of the dish-shaped reaction vessel 7 for the push rod 8 to pass through, one end of the push rod 8 is connected to the cathode part 6, and the other end of the push rod 8 is connected to the negative pole of the power source 1 by a lead wire, and a pressing part 4 is provided on the push rod 8, which is larger than the through hole and is in close contact with the outside of the end surface of the dish-shaped reaction vessel 7.
電食試験を行う時、陽極アセンブリを大型加工物に置き、陽極アセンブリを大型加工物と接触させ、皿型反応容器７に電食酸ペーストを充填し、皿型反応容器７を大型加工物の検出面において倒置し、電食酸ペーストを大型加工物の検出面と充分に接触させ、次に、人力又はフレームなどの方式でプッシュロッド８を皿型反応容器７の内部のほうに移動させ、押付部品４が皿型反応容器７の端面の外側を押し付けることが加わり、皿型反応容器７の中の陰極部品６は常に電食酸ペーストと接触し、同時に皿型反応容器７は電食酸ペーストを検出面に押し付けて、電食酸ペーストを検出面と充分に接触させ、続いて、電源１をオンにして、大型加工物の検出面に対する現場電食を実現する。 When conducting the electrolytic corrosion test, the anode assembly is placed on the large workpiece, the anode assembly is brought into contact with the large workpiece, the dish-shaped reaction vessel 7 is filled with electrolytic acid paste, the dish-shaped reaction vessel 7 is inverted on the detection surface of the large workpiece, and the electrolytic acid paste is brought into full contact with the detection surface of the large workpiece. Next, the push rod 8 is moved toward the inside of the dish-shaped reaction vessel 7 by manual force or a frame, etc., and the pressing part 4 is pressed against the outside of the end surface of the dish-shaped reaction vessel 7, so that the cathode part 6 in the dish-shaped reaction vessel 7 is always in contact with the electrolytic acid paste, and at the same time, the dish-shaped reaction vessel 7 presses the electrolytic acid paste against the detection surface, so that the electrolytic acid paste is brought into full contact with the detection surface. Then, the power supply 1 is turned on to realize in-situ electrolytic corrosion on the detection surface of the large workpiece.
図１を参照すると、さらに、本実施例のプッシュロッド８にねじ構造が設けられ、押付部品４はナットであり、当該ナットは、プッシュロッド８上のねじ構造に係合して接続される。具体的には、本実施例のプッシュロッド８として、ステンレス鋼のねじ付きロッドを用いてもよく、具体的には、φ６×４０ｍｍの３１６ステンレス鋼材料を選んで作製してもよく、ナットを回してステンレス鋼のねじ付きロッドに取り付ける。このようなプッシュロッド８及び押付部品４を用いると、柔軟性に優れ、組み立て及び調整に役立ち、ナットを回せばナットの位置を調整することができ、それを速やかに皿型反応容器７の外端面に調整することができ、また、ナットを適切にねじ込むことは、皿型反応容器７の中の陰極部品６を皿型反応容器７の内端面にロックして、陰極部品６を皿型反応容器７の内壁に密着させるために役立つ。好ましくは、プッシュロッド８にはさらにガスケット５が穿設され、当該ガスケット５は、押付部品４と皿型反応容器７の端面の外側との間に位置する。 Referring to FIG. 1, the push rod 8 of this embodiment is further provided with a thread structure, and the pressing part 4 is a nut, which is engaged with and connected to the thread structure on the push rod 8. Specifically, the push rod 8 of this embodiment may be a stainless steel threaded rod, specifically, a φ6×40mm 316 stainless steel material may be selected and made, and the nut is turned to attach to the stainless steel threaded rod. The use of such a push rod 8 and pressing part 4 provides excellent flexibility and is convenient for assembly and adjustment, and the position of the nut can be adjusted by turning the nut, which can be quickly adjusted to the outer end surface of the dish-shaped reaction vessel 7, and the appropriate screwing of the nut is also useful for locking the cathode part 6 in the dish-shaped reaction vessel 7 to the inner end surface of the dish-shaped reaction vessel 7, so that the cathode part 6 is tightly attached to the inner wall of the dish-shaped reaction vessel 7. Preferably, the push rod 8 is further provided with a gasket 5, which is located between the pressing part 4 and the outer side of the end surface of the dish-shaped reaction vessel 7.
図１を参照すると、陰極部品６は、片状の構造として設けられ、且つ、皿型反応容器７における通し穴より大きい。本実施例では、プッシュロッド８の端部は陰極部品６の中心に対して溶接によって固定される。 Referring to FIG. 1, the cathode part 6 is provided as a strip-like structure and is larger than the through hole in the dish-shaped reaction vessel 7. In this embodiment, the end of the push rod 8 is fixed to the center of the cathode part 6 by welding.
皿型反応容器７は、弾性を備える材料、例えば、ゴム、シリカゲルなどから作製されてもよく、また、皿型反応容器７は、円筒状として設けられる。皿型反応容器７は、プッシュロッド８に係合するよう、一定の弾性を備え、プッシュロッド８が押圧する時に変形が生じ、これにより電食酸ペーストを押圧して大型加工物の検出面に密着させ、電食試験は順調に完了することが確保される。 The dish-shaped reaction vessel 7 may be made of an elastic material, such as rubber or silica gel, and is provided in a cylindrical shape. The dish-shaped reaction vessel 7 has a certain elasticity so as to engage with the push rod 8, and is deformed when the push rod 8 presses it, thereby pressing the electrolytic acid paste to make it adhere to the detection surface of the large workpiece, ensuring that the electrolytic corrosion test is completed smoothly.
図１を参照すると、陽極アセンブリは、上陽極部２と、下陽極部３とを含み、上陽極部２は、下陽極部３に設けられ、且つ、上陽極部２の重量は下陽極部３の重量より軽く、本実施例の陽極アセンブリは、耐食性を備える導電性金属、例えば、３１６ステンレス鋼を選んで作製されてもよい。具体的には、本実施例で陽極アセンブリは、逆の「Ｔ」字状のように設けられ、当然ながら、他の形状、例えば、正方形、三角形などのように設けられてもよく、陽極アセンブリの構造の重量分布は上方が下方より軽いため、安定性を向上させるために役立つ。また、下陽極部３の底部に粘着紙を設けるか、又は、下陽極部３に磁石など、粘着若しくは吸着できる部品を設けることにより、陽極アセンブリを加工物に固定させることができる。 Referring to FIG. 1, the anode assembly includes an upper anode part 2 and a lower anode part 3, the upper anode part 2 is attached to the lower anode part 3, and the weight of the upper anode part 2 is lighter than the weight of the lower anode part 3. The anode assembly of this embodiment may be made of a conductive metal having corrosion resistance, such as 316 stainless steel. Specifically, the anode assembly of this embodiment is arranged in an inverted "T" shape, and of course, it may be arranged in other shapes, such as a square, a triangle, etc., and the weight distribution of the anode assembly structure is lighter at the top than at the bottom, which helps to improve stability. In addition, the anode assembly can be fixed to the workpiece by providing adhesive paper at the bottom of the lower anode part 3, or by providing a part that can be attached or attracted, such as a magnet, to the lower anode part 3.
本実施例は、また、現場金相電食用の陽極－陰極装置の使用方法を開示し、以下のステップを含む。
（１）陰極アセンブリの組み立て
プッシュロッド８を皿型反応容器７の通し穴の中に穿設し、プッシュロッド８にナット及びガスケット５を取り付け、ナットを回して位置を調整することにより、プッシュロッド８の端部の陰極部品６を、皿型反応容器７の内端面に密着させ、ナットを皿型反応容器７の外端面に密着させ、
皿型反応容器７に電食酸ペーストを充填し、電食酸ペーストは陰極部品６と接触し、
リード線によってプッシュロッド８の端部と電源１の負極を接続させる。
（２）陽極アセンブリの組み立て
リード線によって陽極アセンブリと電源１の正極を接続させる。
（３）電食試験の技術的準備
陽極アセンブリを試験対象の大型加工物に置き、陽極アセンブリを試験対象の大型加工物と接触させ、
陰極アセンブリの皿型反応容器７を試験対象の大型加工物の検出面において倒置し、皿型反応容器７の中の電食酸ペーストを検出面と接触させ、
プッシュロッド８を押して、皿型反応容器７の中の電食酸ペーストを検出面と充分に接触させる。
（４）電食試験
電源１をオンにし、電圧は６～８Ｖであり、電流は３～４Ａであり、電解時間は３０～６０秒であり、試験対象の大型加工物の検出面を電食酸ペーストと反応させることで、電食試験を行う。
This embodiment also discloses a method of using an anode-cathode apparatus for in situ metallurgical erosion, which includes the following steps:
(1) Assembling the cathode assembly The push rod 8 is drilled into the through hole of the dish-shaped reaction vessel 7, a nut and a gasket 5 are attached to the push rod 8, and the position is adjusted by turning the nut so that the cathode part 6 at the end of the push rod 8 is in close contact with the inner end surface of the dish-shaped reaction vessel 7, and the nut is in close contact with the outer end surface of the dish-shaped reaction vessel 7.
Fill the dish-shaped reaction vessel 7 with an electrolytic acid paste, which is brought into contact with the cathode part 6;
A lead wire connects the end of the push rod 8 to the negative electrode of the power source 1 .
(2) Assembling the Anode Assembly The anode assembly is connected to the positive electrode of the power source 1 via a lead wire.
(3) Technical preparation of the electrolytic corrosion test: Place the anode assembly on the large workpiece to be tested, and bring the anode assembly into contact with the large workpiece to be tested;
The dish-shaped reaction vessel 7 of the cathode assembly is inverted on the detection surface of the large workpiece to be tested, and the electrolytic acid paste in the dish-shaped reaction vessel 7 is brought into contact with the detection surface;
The push rod 8 is pushed to bring the electrolytic acid paste in the dish-shaped reaction vessel 7 into sufficient contact with the detection surface.
(4) Electrolytic corrosion test: Turn on the power source 1, set the voltage to 6-8 V, the current to 3-4 A, and the electrolysis time to 30-60 seconds, and perform an electrolytic corrosion test by reacting the detection surface of the large workpiece to be tested with the electrolytic acid paste.
現場電食試験の効果及び品質を向上させるために、電食試験を行う前に、大型加工物の検出面に対する前処理を行う必要があり、当該前処理の加工を完了してから、陰極アセンブリの皿型反応容器７を検出面において倒置する。ここで、前処理は、以下のステップを含む。
（ａ）サンドペーパーで検出面に対して粗研磨、細研磨を行う。
（ｂ）検出面に対して仕上げ研磨を行い、具体的には、ダイヤモンドスプレーを用いて機械による仕上げ研磨を行ってもよい。
（ｃ）検出面を洗浄し、具体的には、無水エタノール綿球を用いて検出面を洗浄してもよい。
In order to improve the effect and quality of the on-site electrolytic corrosion test, it is necessary to carry out a pretreatment on the detection surface of the large workpiece before carrying out the electrolytic corrosion test, and after the pretreatment process is completed, the dish-shaped reaction vessel 7 of the cathode assembly is inverted on the detection surface. Here, the pretreatment includes the following steps:
(a) Use sandpaper to roughly polish and then finely polish the detection surface.
(b) The detection surface is subjected to a finish polishing. Specifically, the detection surface may be subjected to a finish polishing by a machine using a diamond spray.
(c) The detection surface is cleaned, specifically, the detection surface may be cleaned using a cotton ball of absolute ethanol.
また、顕微鏡下で検出面に対して金相を観察しやすいよう、電食加工を完了した後、検出面に対して後処理を行う必要がある。ここで、後処理は、以下のステップを含む。
（ｉ）電食後の検出面を洗浄し、洗浄する時は、純水綿球、次に無水エタノール綿球で検出面を洗浄し、検出面の表面の不純物を洗浄で除去する。
（ｉｉ）洗浄後の検出面をブローして乾燥させる。
In order to make it easier to observe the metal phase on the detection surface under a microscope, it is necessary to perform post-processing on the detection surface after the electrolytic etching process is completed. Here, the post-processing includes the following steps.
(i) The detection surface after electrolytic corrosion is washed. When washing, the detection surface is washed with a cotton ball of pure water and then with a cotton ball of absolute ethanol to remove impurities on the surface of the detection surface.
(ii) The detection surface after cleaning is blown dry.
本実施例の現場金相電食用の陽極－陰極装置を用いて現場電食試験を行う場合は、加工物の検出面に対する電食酸ペーストの接触面積は常に変わらず、有効であることを保証するために役立ち、これにより、加工物に対する金属組織の観察及び分析に備え、良好な電食効果を得るために役立つ。図２に示すとおり、本実施例の陽極－陰極装置と電食酸ペーストを併用して電食試験を行う場合は、明瞭で且つ腐食効果が良好な組織形態図を得ることができる。 When performing an on-site electrolytic corrosion test using the anode-cathode device for on-site metallurgical electrolytic corrosion of this embodiment, it helps to ensure that the contact area of the electrolytic acid paste with the detection surface of the workpiece is always constant and effective, which helps to obtain good electrolytic corrosion effects in preparation for observation and analysis of the metal structure of the workpiece. As shown in Figure 2, when performing an electrolytic corrosion test using the anode-cathode device and electrolytic acid paste of this embodiment in combination, a clear microstructural morphology diagram with good corrosion effects can be obtained.
上述したのが本発明の好ましい実施例に過ぎず、本発明に何らかの形式上の限定を加えるものではなく、したがって、本発明の技術的解決手段の内容から逸脱せず、本発明の技術的要旨に基づいて上記の実施例に対して行われるいずれの補正、同等な変化及び潤色が、いずれも本発明の技術的解決手段の範囲に属する。 The above is merely a preferred embodiment of the present invention, and does not impose any formal limitations on the present invention. Therefore, any amendments, equivalent changes and embellishments made to the above embodiments based on the technical gist of the present invention without departing from the content of the technical solution of the present invention, all belong to the scope of the technical solution of the present invention.
１ 電源
２ 上陽極部
３ 下陽極部
４ 押付部品
５ ガスケット
６ 陰極部品
７ 皿型反応容器
８ プッシュロッド
REFERENCE SIGNS LIST 1 Power source 2 Upper anode part 3 Lower anode part 4 Pressing part 5 Gasket 6 Cathode part 7 Dish-shaped reaction vessel 8 Push rod
Claims (9)
電源と、陰極アセンブリと、陽極アセンブリとを含み、前記陽極アセンブリは、前記電源の正極に電気的に接続され、前記陰極アセンブリは、陰極部品と、電食反応を行うための皿型反応容器とを含み、前記陰極部品は、前記電源の負極に電気的に接続され、前記皿型反応容器の中に電食酸ペーストが設けられ、前記陰極部品は、前記皿型反応容器の中に設けられ且つ常に前記電食酸ペーストと接触し、
前記陰極アセンブリは、プッシュロッドをさらに含み、前記皿型反応容器の端面に、プッシュロッドが通過するための通し穴が設けられ、前記プッシュロッドの一端は前記陰極部品に接続され、前記プッシュロッドの他端はリード線によって前記電源の負極に接続され、前記プッシュロッドに押付部品が設けられ、前記押付部品は、前記通し穴より大きく且つ前記皿型反応容器の端面の外側に密着されることを特徴とする金属の腐食試験に用いられる陽極－陰極装置。 1. An anode-cathode apparatus for use in corrosion testing of metals , comprising:
The apparatus includes a power source, a cathode assembly, and an anode assembly, the anode assembly being electrically connected to a positive pole of the power source, the cathode assembly including a cathode part and a dish-shaped reaction vessel for carrying out an electrolytic reaction, the cathode part being electrically connected to a negative pole of the power source, an electrolytic acid paste being provided in the dish-shaped reaction vessel, the cathode part being provided in the dish-shaped reaction vessel and always in contact with the electrolytic acid paste ,
The cathode assembly further includes a push rod, a through hole for the push rod to pass through is provided on an end surface of the dish-shaped reaction vessel, one end of the push rod is connected to the cathode part, and the other end of the push rod is connected to the negative pole of the power source by a lead wire, and a pressing part is provided on the push rod, and the pressing part is larger than the through hole and is in close contact with the outside of the end surface of the dish-shaped reaction vessel .
プッシュロッドを皿型反応容器の通し穴の中に穿設し、前記プッシュロッドにナット及びガスケットを取り付け、ナットを回して位置を調整することにより、プッシュロッドの端部の陰極部品を皿型反応容器の内端面に密着させ、ナットを皿型反応容器の外端面に密着させ、
皿型反応容器に電食酸ペーストを充填し、電食酸ペーストは陰極部品と接触し、
リード線によってプッシュロッドの端部と電源の負極を接続させるステップと、
（２）陽極アセンブリの組み立て
リード線によって陽極アセンブリと電源の正極を接続させるステップと、
（３）電食試験の技術的準備
陽極アセンブリを試験対象の大型加工物に置き、陽極アセンブリを試験対象の大型加工物と接触させ、
陰極アセンブリの皿型反応容器を試験対象の大型加工物の検出面において倒置し、皿型反応容器の中の電食酸ペーストを前記検出面と接触させ、
プッシュロッドを押して、皿型反応容器の中の電食酸ペーストを前記検出面と充分に接触させるステップと、
（４）電食試験
電源をオンにして、試験対象の大型加工物の前記検出面を電食酸ペーストと反応させることで、電食試験を行うステップとを含むことを特徴とする請求項１～６のいずれか一項に記載の金属の腐食試験に用いられる陽極－陰極装置の使用方法。 (1) Assembling the cathode assembly: A push rod is drilled into a through hole of a dish-shaped reaction vessel, a nut and a gasket are attached to the push rod, and the nut is turned to adjust the position so that the cathode part at the end of the push rod is in close contact with the inner end surface of the dish-shaped reaction vessel, and the nut is in close contact with the outer end surface of the dish-shaped reaction vessel;
Fill the dish-shaped reaction vessel with an electrolytic acid paste, which is in contact with the cathode part;
connecting an end of the push rod to a negative terminal of a power source by a lead wire;
(2) Assembling the anode assembly: Connecting the anode assembly to the positive terminal of the power source by a lead wire;
(3) Technical preparation of the electrolytic corrosion test: Place the anode assembly on the large workpiece to be tested, and bring the anode assembly into contact with the large workpiece to be tested;
The dish-shaped reaction vessel of the cathode assembly is inverted on the detection surface of the large workpiece to be tested, and the electrolytic acid paste in the dish-shaped reaction vessel is brought into contact with the detection surface;
Pushing the push rod to bring the electrolytic acid paste in the dish-shaped reaction vessel into sufficient contact with the detection surface;
(4) Electrolytic corrosion test. The method of using the anode-cathode device for metal corrosion testing according to any one of claims 1 to 6 , further comprising the step of: turning on the power supply and reacting the detection surface of the large workpiece to be tested with an electrolytic acid paste to perform an electrolytic corrosion test .
（ａ）サンドペーパーで検出面に対して粗研磨、細研磨を行うステップと、
（ｂ）検出面に対して仕上げ研磨を行うステップと、
（ｃ）検出面を洗浄するステップとを含むことを特徴とする請求項７に記載の金属の腐食試験に用いられる陽極－陰極装置の使用方法。 It also includes pretreatment of the detection surface of the large workpiece, and the electrolytic corrosion test is performed after the pretreatment of the detection surface of the large workpiece is completed, and the pretreatment is
(a) rough-grinding and fine-grinding the detection surface with sandpaper;
(b) performing a finish polishing step on the detection surface;
8. The method of claim 7 , further comprising the step of: (c) cleaning the detection surface.
（ｉ）電食後の検出面を洗浄するステップと、
（ｉｉ）洗浄後の検出面をブローして乾燥させるステップとを含むことを特徴とする請求項７に記載の金属の腐食試験に用いられる陽極－陰極装置の使用方法。 It further includes post-processing for the detection surface of the large workpiece, the post-processing being:
(i) cleaning the detection surface after electrolytic corrosion;
The method for using an anode-cathode device for use in a corrosion test for metals according to claim 7 , further comprising the step of: (ii) blowing and drying the detection surface after cleaning.
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| JP2003121406A (en) | 2001-10-19 | 2003-04-23 | Hitachi Ltd | Electrochemical measuring cell for metallic material |
| WO2004063737A1 (en) | 2003-01-15 | 2004-07-29 | Osaka Gas Co., Ltd. | Corrosion/anticorrosion state evaluation method, potential measuring instrument, and reference electrode |
| CN1772971A (en) | 2005-10-17 | 2006-05-17 | 中国海洋大学 | Method for raising corrosion resistant property stainless steel welding seam and apparatus thereof |
| CN205616988U (en) | 2016-05-09 | 2016-10-05 | 上海电气核电设备有限公司 | On --spot metallography electrolytic buffing corrodes positive pole negative pole device of instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0633519B2 (en) * | 1988-05-19 | 1994-05-02 | 川崎製鉄株式会社 | Electrolytic treatment device for metal surface |
| CA1338172C (en) * | 1989-09-07 | 1996-03-19 | Shigemitsu Kashihara | Electrolytic processing method for electrolytically processing metal surface |
| CN203546193U (en) * | 2013-10-16 | 2014-04-16 | 云南电力试验研究院（集团）有限公司电力研究院 | Cathode head device for field metallographic electrolysis polishing etcher |
| GB2538996A (en) * | 2015-06-02 | 2016-12-07 | Datum Alloys Pte Ltd | Selective electropolishing method, appartus and electrolyte |
| KR102214115B1 (en) * | 2020-10-12 | 2021-02-09 | 임재균 | Stainless Steel Electrolytic Corrosion Device for Field Use |
| CN215976123U (en) * | 2021-10-22 | 2022-03-08 | 东莞理工学院 | Device for dry type electrolytic polishing |
| CN115506005A (en) * | 2022-09-05 | 2022-12-23 | 东方电气(广州)重型机器有限公司 | Anode-cathode device for on-site metallographic electrolytic corrosion and use method thereof |
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- 2022-09-05 CN CN202211077122.1A patent/CN115506005A/en active Pending
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003121406A (en) | 2001-10-19 | 2003-04-23 | Hitachi Ltd | Electrochemical measuring cell for metallic material |
| WO2004063737A1 (en) | 2003-01-15 | 2004-07-29 | Osaka Gas Co., Ltd. | Corrosion/anticorrosion state evaluation method, potential measuring instrument, and reference electrode |
| CN1772971A (en) | 2005-10-17 | 2006-05-17 | 中国海洋大学 | Method for raising corrosion resistant property stainless steel welding seam and apparatus thereof |
| CN205616988U (en) | 2016-05-09 | 2016-10-05 | 上海电气核电设备有限公司 | On --spot metallography electrolytic buffing corrodes positive pole negative pole device of instrument |
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| Publication number | Publication date |
|---|---|
| JP2024036298A (en) | 2024-03-15 |
| WO2024051353A1 (en) | 2024-03-14 |
| CN115506005A (en) | 2022-12-23 |
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