EP0193239A1 - Zusammensetzungen und Verfahren zum chemischen Polieren von Stahloberflächen - Google Patents

Zusammensetzungen und Verfahren zum chemischen Polieren von Stahloberflächen Download PDF

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Publication number
EP0193239A1
EP0193239A1 EP86200262A EP86200262A EP0193239A1 EP 0193239 A1 EP0193239 A1 EP 0193239A1 EP 86200262 A EP86200262 A EP 86200262A EP 86200262 A EP86200262 A EP 86200262A EP 0193239 A1 EP0193239 A1 EP 0193239A1
Authority
EP
European Patent Office
Prior art keywords
mole
ferricyanide
aqueous solution
baths
acid
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.)
Granted
Application number
EP86200262A
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English (en)
French (fr)
Other versions
EP0193239B1 (de
Inventor
Daniel Tytgat
Pierre Lefevre
Michel Marechal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Solvay SA
Original Assignee
Solvay SA
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 Solvay SA filed Critical Solvay SA
Priority to AT86200262T priority Critical patent/ATE44553T1/de
Publication of EP0193239A1 publication Critical patent/EP0193239A1/de
Application granted granted Critical
Publication of EP0193239B1 publication Critical patent/EP0193239B1/de
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F3/00—Brightening metals by chemical means
    • C23F3/04—Heavy metals
    • C23F3/06—Heavy metals with acidic solutions

Definitions

  • the present invention relates to the composition of baths for the chemical polishing of steel surfaces, in particular stainless steel.
  • the invention therefore relates to baths for the chemical polishing of steel surfaces, comprising, in aqueous solution, a mixture of hydrochloric acid, phosphoric acid and nitric acid; according to the invention, the baths comprise, in the aqueous solution, ferricyanide complex ions.
  • the baths according to the invention are suitable for polishing all austenitic stainless steel surfaces. They find a particularly advantageous application in the polishing of austenitic stainless steels alloyed with chromium and nickel, in particular those containing between 12 and 26% of chromium and between 6 and 22% of nickel, such as steels 18/8 and 18/10 , for example.
  • the invention therefore also relates to a method for polishing a steel surface, according to which the surface is brought into contact with a chemical polishing bath according to the invention.
  • a prefabricated bath can be used, in contact with which the metal surface to be polished is then placed.
  • the metal surface is first brought into contact with an aqueous solution of hydrochloric acid, of acid phosphoric acid and nitric acid, then complex ferricyanide ions are added to the solution while it is in contact with the metal surface.
  • the surface to be polished is brought into contact with the aqueous acid solution at a temperature between 15 and 70 ° C. preferably 20 and 55 ° C., the ferricyanide complex ions are added to said solution after having maintained the surface in contact for at least 15 minutes, and then the maintenance of the surface in contact with the resulting bath is continued for a time at least equal 1 hour.
  • the addition of the ferricyanide complex ions to the acid solution can for example be carried out after the surface to be polished has been kept in contact with said solution for a time between 30 and 60 minutes and the resulting bath can then be kept in contact with the surface for a time between 6 and 24 hours.
  • the bath used had the following composition: Additive: potassium ferricyanide 20 mg / l.
  • the bath was introduced into the tank, at a rate of 3.9 1 per dm 2 of surface to be polished, and it was subjected to a stirring movement therein by means of a three-blade agitator, while maintaining its temperature between 45 and 50 ° C.
  • the tank was drained and rinsed with demineralized water.
  • a chemical polishing bath in accordance with the invention was used to polish the external surface of the tubes of a tubular heat exchanger made of stainless steel 1.9 m in diameter and 6 m in length.
  • This exchanger was equipped with 455 tubes of 50 mm in diameter and 9 baffles made, like the ferrule, in stainless steel grade ASTM-304L, which is a steel alloyed with chromium (18.0 to 20.0%) and nickel (8.0 to 12.0%) (Engineering techniques - Metallurgy - M.323A - 8 (Table G) July 1983).
  • the bath used had the following composition:
  • This bath was introduced into a shuttle circuit at a rate of 1.3 1 per dm 2 of surface to be polished and it was subjected to a linear passage movement over the surfaces to be treated by means of a circulation pump. , while maintaining its temperature between 45 and 50 ° C by injecting steam inside the tubes.
  • This bath made it possible to chemically polish, almost perfectly, the outside surface of the tube bundle.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • ing And Chemical Polishing (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Polyethers (AREA)
  • Artificial Filaments (AREA)
EP86200262A 1985-03-04 1986-02-20 Zusammensetzungen und Verfahren zum chemischen Polieren von Stahloberflächen Expired EP0193239B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86200262T ATE44553T1 (de) 1985-03-04 1986-02-20 Zusammensetzungen und verfahren zum chemischen polieren von stahloberflaechen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8503263 1985-03-04
FR8503263A FR2578271A1 (fr) 1985-03-04 1985-03-04 Bains et procede pour le polissage chimique de surfaces en acier.

Publications (2)

Publication Number Publication Date
EP0193239A1 true EP0193239A1 (de) 1986-09-03
EP0193239B1 EP0193239B1 (de) 1989-07-12

Family

ID=9316903

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86200262A Expired EP0193239B1 (de) 1985-03-04 1986-02-20 Zusammensetzungen und Verfahren zum chemischen Polieren von Stahloberflächen

Country Status (8)

Country Link
US (1) US4652340A (de)
EP (1) EP0193239B1 (de)
JP (1) JPS61217600A (de)
AT (1) ATE44553T1 (de)
DE (1) DE3664339D1 (de)
ES (1) ES8705930A1 (de)
FR (1) FR2578271A1 (de)
PT (1) PT82125B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0425013A1 (de) * 1989-10-26 1991-05-02 SOLVAY (Société Anonyme) Bäder und Verfahren zum chemischen Polieren von Oberflächen aus rostfreiem Stahl
EP0648864A1 (de) * 1993-10-18 1995-04-19 Rohm And Haas Company Verwendung von Eisensalzen zur Korrosionsinhibierung von Metallen
FR2717829A1 (fr) * 1994-03-28 1995-09-29 Solvay Bains et procédé pour le polissage chimique de surfaces en acier inoxydable.
CN111876783A (zh) * 2020-07-10 2020-11-03 山东电力工业锅炉压力容器检验中心有限公司 一种金相化学抛光液及在奥氏体不锈钢金相检测领域的应用

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5279707A (en) * 1992-10-23 1994-01-18 Time Savers Die discoloration remover solution and method
CN108570699A (zh) * 2018-05-16 2018-09-25 扬州虹扬科技发展有限公司 一种电镀前处理药剂及处理工艺
CN110724999B (zh) * 2019-10-23 2021-09-28 沈阳航空航天大学 一种用于高Cr含量的CoCrNi多主元合金的电解液及腐蚀工艺

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1809041A (en) * 1930-02-03 1931-06-09 Swann Res Inc Inhibitor
FR1037300A (fr) * 1950-10-27 1953-09-15 Henkel & Cie Gmbh Procédé et agents pour la protection du fer contre l'attaque de liquides acides
EP0019964A1 (de) * 1979-05-25 1980-12-10 SOLVAY & Cie (Société Anonyme) Bad zum chemischen Polieren von Stahloberflächen
EP0025624A1 (de) * 1979-09-17 1981-03-25 SOLVAY & Cie (Société Anonyme) Verfahren zur Korrosionshemmung beim Kontakt mit einem Säurebad für eine metallische Anlage
FR2476146A1 (fr) * 1980-02-20 1981-08-21 Solvay Bain pour l'elimination d'une pellicule de magnetite d'une surface metallique
US4289576A (en) * 1980-05-27 1981-09-15 Halliburton Company Method for removing cobalt-containing deposits from surfaces

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2502621A (en) * 1945-10-08 1950-04-04 Menasco Mfg Company Method of determining oxygen concentration in steel
US2662814A (en) * 1949-08-27 1953-12-15 Diversey Corp Method and composition for chemically polishing metals
LU38281A1 (de) * 1959-03-09
US3457107A (en) * 1965-07-20 1969-07-22 Diversey Corp Method and composition for chemically polishing metals

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1809041A (en) * 1930-02-03 1931-06-09 Swann Res Inc Inhibitor
FR1037300A (fr) * 1950-10-27 1953-09-15 Henkel & Cie Gmbh Procédé et agents pour la protection du fer contre l'attaque de liquides acides
EP0019964A1 (de) * 1979-05-25 1980-12-10 SOLVAY & Cie (Société Anonyme) Bad zum chemischen Polieren von Stahloberflächen
EP0025624A1 (de) * 1979-09-17 1981-03-25 SOLVAY & Cie (Société Anonyme) Verfahren zur Korrosionshemmung beim Kontakt mit einem Säurebad für eine metallische Anlage
FR2476146A1 (fr) * 1980-02-20 1981-08-21 Solvay Bain pour l'elimination d'une pellicule de magnetite d'une surface metallique
US4289576A (en) * 1980-05-27 1981-09-15 Halliburton Company Method for removing cobalt-containing deposits from surfaces

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0425013A1 (de) * 1989-10-26 1991-05-02 SOLVAY (Société Anonyme) Bäder und Verfahren zum chemischen Polieren von Oberflächen aus rostfreiem Stahl
BE1003579A3 (fr) * 1989-10-26 1992-04-28 Solvay Bains et procede pour le polissage chimique de surfaces en acier inxoydable.
EP0648864A1 (de) * 1993-10-18 1995-04-19 Rohm And Haas Company Verwendung von Eisensalzen zur Korrosionsinhibierung von Metallen
FR2717829A1 (fr) * 1994-03-28 1995-09-29 Solvay Bains et procédé pour le polissage chimique de surfaces en acier inoxydable.
WO1995026428A1 (fr) * 1994-03-28 1995-10-05 Solvay S.A. Bains et procede pour le polissage chimique de surfaces en acier inoxydable
US5762819A (en) * 1994-03-28 1998-06-09 Solvay (Societe Anonyme) Baths and process for chemical polishing of stainless steel surfaces
CN111876783A (zh) * 2020-07-10 2020-11-03 山东电力工业锅炉压力容器检验中心有限公司 一种金相化学抛光液及在奥氏体不锈钢金相检测领域的应用

Also Published As

Publication number Publication date
ES552595A0 (es) 1987-05-16
FR2578271A1 (fr) 1986-09-05
ES8705930A1 (es) 1987-05-16
EP0193239B1 (de) 1989-07-12
PT82125B (pt) 1988-04-21
JPS61217600A (ja) 1986-09-27
PT82125A (fr) 1986-04-01
DE3664339D1 (en) 1989-08-17
US4652340A (en) 1987-03-24
ATE44553T1 (de) 1989-07-15
JPH0577751B2 (de) 1993-10-27

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