WO2024051353A1 - Appareil d'anode-cathode pour corrosion électrolytique métallographique sur site, et procédé d'utilisation de celui-ci - Google Patents

Appareil d'anode-cathode pour corrosion électrolytique métallographique sur site, et procédé d'utilisation de celui-ci Download PDF

Info

Publication number
WO2024051353A1
WO2024051353A1 PCT/CN2023/108075 CN2023108075W WO2024051353A1 WO 2024051353 A1 WO2024051353 A1 WO 2024051353A1 CN 2023108075 W CN2023108075 W CN 2023108075W WO 2024051353 A1 WO2024051353 A1 WO 2024051353A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrolytic corrosion
anode
cathode
reaction vessel
push rod
Prior art date
Application number
PCT/CN2023/108075
Other languages
English (en)
Chinese (zh)
Inventor
王洪涛
王海沦
张立殷
戴光明
秦锦
刘盛波
夏小军
Original Assignee
东方电气(广州)重型机器有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 东方电气(广州)重型机器有限公司 filed Critical 东方电气(广州)重型机器有限公司
Publication of WO2024051353A1 publication Critical patent/WO2024051353A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • 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
    • 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
    • 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

Definitions

  • the invention belongs to the technical field of electrolytic corrosion, and specifically relates to an anode and cathode device for on-site metallographic electrolytic corrosion and a method of using it.
  • Metallographic electrolytic corrosion is the use of electrochemical principles to electrolytically corrode test samples in order to observe and analyze the organizational morphology of the test samples under a microscope.
  • the cathode of metallographic electrolytic corrosion instruments used in the existing technology is generally a metal plate, and the anode is connected to the sample using a clip.
  • the sample and the cathode metal plate are placed in the electrolytic tank. After energization, electrolytic corrosion of the sample is achieved.
  • this cathode and anode device cannot conduct metallographic tests on large workpieces on site.
  • the purpose of the present invention is to provide an anode and cathode device for on-site metallographic electrolytic corrosion, which is easy to operate, has good repeatability, and is especially suitable for on-site metallographic tests of large workpieces.
  • Another object of the present invention is to provide a method of using an anode and cathode device for on-site metallographic electrolytic corrosion.
  • An anode and cathode device for on-site metallographic electrolytic corrosion including a power supply, a cathode assembly and an anode assembly; the anode assembly is electrically connected to the positive electrode of the power supply; the cathode assembly includes a cathode piece and a reaction for performing an electrolytic corrosion reaction The cathode member is electrically connected to the negative electrode of the power supply.
  • the reaction vessel is provided with electrolytic corrosion acid paste.
  • the cathode member is arranged in the reaction vessel and is always in contact with the electrolytic corrosion acid paste.
  • the cathode assembly further includes a push rod; an end surface of the reaction vessel is provided with a through hole for the push rod to pass through; one end of the push rod is connected to the cathode member, and the other end of the push rod It is connected to the negative electrode of the power supply through a wire; the push rod is provided with a pressing piece, which is larger than the through hole and is close to the outside of the end face of the reaction vessel.
  • the push rod is provided with a threaded structure
  • the pressing member is a nut
  • the nut is connected to the thread on the push rod.
  • the texture structure matches the connection.
  • the cathode assembly further includes a gasket, which is passed through the push rod and located between the pressing member and the outside of the end surface of the reaction vessel.
  • the cathode member is arranged in a sheet-like structure and is larger than the via hole on the reaction vessel.
  • the reaction vessel is made of elastic material, such as rubber, silica gel, etc.
  • the anode assembly includes an upper anode part and a lower anode part, the upper anode part is disposed on the lower anode part, and the upper anode part is lighter in weight than the lower anode part.
  • a method of using an on-site metallographic electrolytic corrosion anode and cathode device including the following steps:
  • the reaction vessel is filled with electrolytic corrosion acid paste, and the electrolytic corrosion acid paste is in contact with the cathode member;
  • it also includes pre-processing of the detection surface of the large workpiece, and then conducts the electrolytic corrosion test after completing the pre-processing of the detection surface of the large workpiece; including the following steps:
  • it also includes post-processing of the detection surface of large workpieces; including the following steps:
  • the invention combines the use of electrolytic corrosion acid paste, and with the cooperation of the device, ensures that the contact area between the electrolytic corrosion acid paste and 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 impact on the detection personnel. Damage, which is conducive to obtaining good electrolytic corrosion effects and improving test safety, so as to observe and analyze the metallographic structure of the workpiece.
  • the anode assembly and the anode assembly of the present invention have a simple structure, small size, easy operation, and good repeatability, which are conducive to improving the efficiency of on-site electrolytic corrosion tests and effectively solving the defects existing in the existing technology.
  • Figure 1 is a schematic three-dimensional structural diagram of an anode and cathode device for on-site metallographic electrolytic corrosion according to the present invention.
  • Figure 2 is a structural morphology diagram obtained after an electrolytic corrosion test using an on-site metallographic electrolytic corrosion anode and cathode device of the present invention.
  • this embodiment discloses an anode and cathode device for on-site metallographic electrolytic corrosion, including a power supply 1, a cathode assembly and an anode assembly.
  • the power supply 1 in this embodiment adopts a DC power supply 1.
  • the anode assembly is electrically connected to the positive electrode of the power supply 1;
  • the cathode assembly includes a cathode member 6 and a reaction vessel 7 for electrolytic corrosion reaction, the cathode member 6 is connected to the electrode
  • the negative electrode of the source 1 is electrically connected.
  • the reaction vessel 7 is provided with electrolytic corrosion acid paste.
  • the cathode member 6 is arranged in the reaction vessel 7 and is always in contact with the electrolytic corrosion acid paste.
  • the cathode assembly also includes a push rod 8; the end surface of the reaction vessel 7 is provided with a through hole for the push rod 8 to pass through; one end of the push rod 8 is connected to the cathode member 6, and the push rod 8 The other end is connected to the negative pole of the power supply 1 through a wire; the push rod 8 is provided with a pressing member 4, which is larger than the through hole and is close to the end surface of the reaction vessel 7 outside.
  • the electrolytic corrosion test place the anode assembly on the large workpiece so that the anode assembly is in contact with the large workpiece; fill the reaction vessel 7 with electrolytic corrosion acid paste, and place the reaction vessel 7 upside down on the detection surface of the large workpiece to allow the anode component to contact the large workpiece.
  • the electrolytic corrosion acid paste is in full contact with the detection surface of the large workpiece; then, the push rod 8 is forced to move to the inner side of the reaction vessel 7 through manual or bracket methods, combined with the pressing effect of the pressing member 4 on the outside of the end surface of the reaction vessel 7,
  • the cathode 6 in the reaction vessel 7 is always in contact with the electrolytic corrosion acid paste.
  • the reaction vessel 7 also presses the electrolytic corrosion acid paste against the detection surface, so that the electrolytic corrosion acid paste fully contacts the detection surface; then, turn on the power 1. Realize on-site electrolytic corrosion of the detection surface of large workpieces.
  • the push rod 8 of this embodiment is provided with a threaded structure
  • the pressing member 4 is a nut
  • the nut is cooperatively connected with the threaded structure on the push rod 8 .
  • the push rod 8 of this embodiment can be made of a stainless steel threaded rod, specifically made of ⁇ 6*40mm 316 stainless steel material; the nut is screwed and installed on the stainless steel threaded rod. Using such push rod 8 and pressing piece 4 has good flexibility and is easy to assemble and adjust.
  • the position of the nut can be adjusted by twisting the nut, and can be quickly adjusted to the outer end surface of the reaction vessel 7; in addition, by properly tightening
  • the nut is conducive to locking the cathode member 6 in the reaction vessel 7 to the inner end surface of the reaction vessel 7, so that the cathode member 6 is in close contact with the inner wall of the reaction vessel 7.
  • the push rod 8 is also provided with a gasket 5 , and the gasket 5 is located between the pressing member 4 and the outside of the end surface of the reaction vessel 7 .
  • the cathode member 6 is arranged in a sheet-like structure and is larger than the via hole on the reaction vessel 7 .
  • the end of the push rod 8 and the center of the cathode member 6 are fixed by welding.
  • the reaction vessel 7 can be made of elastic material, such as rubber, silica gel, etc.; in addition, the reaction vessel 7 is arranged in a cylindrical shape.
  • the reaction vessel 7 has a certain elasticity to cooperate with the push rod 8 and deform when the push rod 8 is pressed down, so that the electrolytic corrosion acid paste is pressed tightly against the detection surface of the large workpiece to ensure the smooth completion of the electrolytic corrosion test.
  • the anode assembly includes an upper anode part 2 and a lower anode part 3.
  • the upper anode part 2 is disposed on the lower anode part 3, and the weight of the upper anode part 2 is greater than that of the lower anode part.
  • 3 is light in weight;
  • the anode assembly of this embodiment can be made of conductive metal with corrosion resistance, such as 316 stainless steel.
  • the anode assembly in this embodiment is arranged in an inverted "T" shape. Of course, it can also be arranged in other shapes, such as square, triangle, etc.; the structural weight distribution of the anode assembly is light at the top and heavy at the bottom, which is beneficial to improving stability.
  • stickers may also be provided at the bottom of the lower anode part 3, or components with adhesive and adsorption functions such as magnets may be provided on the lower anode part 3, thereby facilitating the fixation of the anode assembly on the workpiece.
  • This embodiment also discloses a method of using an anode and cathode device for on-site metallographic electrolytic corrosion, which includes the following steps:
  • the reaction vessel 7 is filled with electrolytic corrosion acid paste, and the electrolytic corrosion acid paste is in contact with the cathode member 6;
  • the voltage is 6-8V
  • the current is 3-4A
  • the electrolysis time is 30-60s; make the detection surface on the large workpiece to be tested react with the electrolytic corrosion acid paste, and conduct the electrolytic corrosion test.
  • pre-processing includes the following steps:
  • polish the detection surface specifically, diamond spray can be used for mechanical polishing
  • the post-processing includes the following steps:
  • on-site metallographic electrolytic corrosion anode and cathode device of this embodiment to conduct on-site electrolytic corrosion tests is beneficial to ensuring that the contact area between the electrolytic corrosion acid paste and the workpiece detection surface is always constant and effective, thereby helping to obtain good electrolytic corrosion effects.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

La présente invention appartient au domaine technique de la corrosion électrolytique. L'invention concerne un appareil d'anode-cathode pour la corrosion électrolytique métallographique sur site, et un procédé d'utilisation de celui-ci. L'appareil d'anode-cathode comprend une source d'alimentation, un ensemble cathode et un ensemble anode, l'ensemble anode étant connecté électriquement à une électrode positive de la source d'alimentation ; et l'ensemble cathode comprend un élément cathode et une cuve de réaction, l'élément cathode est connecté électriquement à une électrode négative de la source d'alimentation, une pâte d'acide de corrosion électrolytique est prévue dans la cuve de réaction, l'élément cathode étant disposé dans la cuve de réaction et étant toujours en contact avec la pâte d'acide de corrosion électrolytique. Dans la présente invention, la pâte d'acide de corrosion électrolytique est utilisée en combinaison avec l'appareil pour assurer que la surface de contact entre la pâte d'acide de corrosion électrolytique et une face de détection d'une pièce à travailler est toujours constante et effective, ce qui facilite l'acquisition d'un bon effet de corrosion électrolytique et permet de réaliser ainsi une observation et une analyse de structure métallographique sur la pièce à travailler.
PCT/CN2023/108075 2022-09-05 2023-07-19 Appareil d'anode-cathode pour corrosion électrolytique métallographique sur site, et procédé d'utilisation de celui-ci WO2024051353A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202211077122.1 2022-09-05
CN202211077122.1A CN115506005A (zh) 2022-09-05 2022-09-05 一种现场金相电解腐蚀的阳极阴极装置及其使用方法

Publications (1)

Publication Number Publication Date
WO2024051353A1 true WO2024051353A1 (fr) 2024-03-14

Family

ID=84502125

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/108075 WO2024051353A1 (fr) 2022-09-05 2023-07-19 Appareil d'anode-cathode pour corrosion électrolytique métallographique sur site, et procédé d'utilisation de celui-ci

Country Status (3)

Country Link
JP (1) JP7478293B2 (fr)
CN (1) CN115506005A (fr)
WO (1) WO2024051353A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115506005A (zh) * 2022-09-05 2022-12-23 东方电气(广州)重型机器有限公司 一种现场金相电解腐蚀的阳极阴极装置及其使用方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01294899A (ja) * 1988-05-19 1989-11-28 Kawasaki Steel Corp 金属材表面の電解処理装置
CA1338172C (fr) * 1989-09-07 1996-03-19 Shigemitsu Kashihara Procede electrolytique servant au traitement de surfaces metalliques
CN203546193U (zh) * 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 一种现场金相电解抛光腐蚀仪用阴极头装置
WO2016193736A1 (fr) * 2015-06-02 2016-12-08 Datum Alloys Pte. Ltd. Procédé, appareil et électrolyte de polissage électrolytique sélectif
KR102214115B1 (ko) * 2020-10-12 2021-02-09 임재균 현장 실시용 스텐리스 스틸 전해 부식 장치
CN215976123U (zh) * 2021-10-22 2022-03-08 东莞理工学院 一种用于干式电解抛光的装置
CN115506005A (zh) * 2022-09-05 2022-12-23 东方电气(广州)重型机器有限公司 一种现场金相电解腐蚀的阳极阴极装置及其使用方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003121406A (ja) 2001-10-19 2003-04-23 Hitachi Ltd 金属材料の電気化学測定セル
JP4137058B2 (ja) 2003-01-15 2008-08-20 大阪瓦斯株式会社 腐食・防食状態評価方法
CN1772971A (zh) 2005-10-17 2006-05-17 中国海洋大学 提高不锈钢焊缝耐蚀性的方法及所用的装置
CN205616988U (zh) 2016-05-09 2016-10-05 上海电气核电设备有限公司 现场金相电解抛光腐蚀仪器的阳极阴极装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01294899A (ja) * 1988-05-19 1989-11-28 Kawasaki Steel Corp 金属材表面の電解処理装置
CA1338172C (fr) * 1989-09-07 1996-03-19 Shigemitsu Kashihara Procede electrolytique servant au traitement de surfaces metalliques
CN203546193U (zh) * 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 一种现场金相电解抛光腐蚀仪用阴极头装置
WO2016193736A1 (fr) * 2015-06-02 2016-12-08 Datum Alloys Pte. Ltd. Procédé, appareil et électrolyte de polissage électrolytique sélectif
KR102214115B1 (ko) * 2020-10-12 2021-02-09 임재균 현장 실시용 스텐리스 스틸 전해 부식 장치
CN215976123U (zh) * 2021-10-22 2022-03-08 东莞理工学院 一种用于干式电解抛光的装置
CN115506005A (zh) * 2022-09-05 2022-12-23 东方电气(广州)重型机器有限公司 一种现场金相电解腐蚀的阳极阴极装置及其使用方法

Also Published As

Publication number Publication date
CN115506005A (zh) 2022-12-23
JP7478293B2 (ja) 2024-05-02
JP2024036298A (ja) 2024-03-15

Similar Documents

Publication Publication Date Title
WO2024051353A1 (fr) Appareil d'anode-cathode pour corrosion électrolytique métallographique sur site, et procédé d'utilisation de celui-ci
CN108426929B (zh) 一种工作电极可拆分外置式三电极体系电化学测试装置
CN109295493A (zh) 金属表面放射性污染物的电化学原位去污方法
CN209941141U (zh) 适用于金属样品电解抛光的装置
CN109763166A (zh) 适用于金属样品电解抛光的装置
CN218621118U (zh) 一种现场金相电解腐蚀的阳极阴极装置
KR100557681B1 (ko) 설비의 금속조직검사용 전해금속연마시스템 및 그 연마방법
CN207527552U (zh) 一种火电厂锅炉炉管垢量测定系统
CN114231986A (zh) 一种辐照后锆合金晶粒蚀刻方法
CN113664302A (zh) 一种金属铌表面加工重构方法及重构装置
CN207992107U (zh) 一种多类别电位测试装置
CN110318092B (zh) 一种电解抛光用辅助装置及其使用方法
CN206891829U (zh) 一种实验室用铝合金电解抛光装置
CN221056184U (zh) 一种金相腐蚀辅助装置
CN209342486U (zh) 用于焊接接头的腐蚀装置
CN215050840U (zh) 一种用于测试探针加工的电解蚀刻装置
CN112126961A (zh) 一种铝合金工件微弧氧化表面处理方法
CN221117680U (zh) 一种金属外壳电镀加工设备
CN207263513U (zh) 一种直接观测金相试样化学腐蚀过程的工作台
CN109913936A (zh) 去污系统及去污方法
CN212989436U (zh) 一种煤基电极材料电化学性能测试装置
CN221199160U (zh) 一种金相试样电解腐蚀系统
CN220335357U (zh) 电化学抛光机
CN213197247U (zh) 一种新型钛阳极寿命测试夹具
CN205701745U (zh) 一种硝酸缸装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23862054

Country of ref document: EP

Kind code of ref document: A1