GB1056670A - Improvements relating to methods of chemically polishing metals - Google Patents

Improvements relating to methods of chemically polishing metals

Info

Publication number
GB1056670A
GB1056670A GB45575/64A GB4557564A GB1056670A GB 1056670 A GB1056670 A GB 1056670A GB 45575/64 A GB45575/64 A GB 45575/64A GB 4557564 A GB4557564 A GB 4557564A GB 1056670 A GB1056670 A GB 1056670A
Authority
GB
United Kingdom
Prior art keywords
methods
improvements relating
chemically polishing
solution
polishing metals
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
Application number
GB45575/64A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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
Priority claimed from FR953317A external-priority patent/FR1383066A/en
Priority claimed from FR970684A external-priority patent/FR85595E/en
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1056670A publication Critical patent/GB1056670A/en
Expired legal-status Critical Current

Links

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
    • 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

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)

Abstract

Zinc, iron, steels, nickel and cobalt are polished in an aqueous solution comprising 48 to 50% by weight hydrofluoric acid, and 30% by weight hydrogen peroxide, in a molar ratio of H2O2 to HF between 3 and 7. The solution may be at room temperature 70 or 80 DEG C. and the time of immersion may be 1 minute. The metal may be pretreated by immersing for 6 to 8 minutes in a solution comprising 300 gms. 1l of tartaric acid and 6 mols. 1l of hydrochloric acid at 60 DEG C.
GB45575/64A 1963-11-12 1964-11-09 Improvements relating to methods of chemically polishing metals Expired GB1056670A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR953317A FR1383066A (en) 1963-11-12 1963-11-12 Chemical metal polishing process
FR970684A FR85595E (en) 1964-04-13 1964-04-13 Chemical metal polishing process

Publications (1)

Publication Number Publication Date
GB1056670A true GB1056670A (en) 1967-01-25

Family

ID=26204268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45575/64A Expired GB1056670A (en) 1963-11-12 1964-11-09 Improvements relating to methods of chemically polishing metals

Country Status (7)

Country Link
US (1) US3369914A (en)
BE (1) BE655566A (en)
CH (1) CH450103A (en)
DE (1) DE1270355B (en)
GB (1) GB1056670A (en)
NL (1) NL6413002A (en)
OA (1) OA01154A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537926A (en) * 1967-06-19 1970-11-03 Lancy Lab Chemical brightening of iron-containing surfaces of workpieces
EP0489339B1 (en) * 1990-11-27 1996-04-17 Kabushiki Kaisha Toyota Chuo Kenkyusho Brightening chemical polishing solution for hardened steel article and method of using it
AU3692400A (en) 1999-02-04 2000-08-25 Brian D. Hass Automatic door assembly and door operator therefor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE710733C (en) * 1937-10-16 1941-09-19 Schering Ag Process for pickling iron and iron alloys
US2689785A (en) * 1953-03-18 1954-09-21 Us Navy Method for chemically polishing lead
DE1126513B (en) * 1958-08-19 1962-03-29 Intermetall Process for processing semiconductor arrangements
NL257610A (en) * 1959-11-05
US3228816A (en) * 1962-02-21 1966-01-11 Rohr Corp Process and composition for cleaning and polishing aluminum and its alloys
BE657708A (en) * 1963-12-30

Also Published As

Publication number Publication date
DE1270355B (en) 1968-06-12
US3369914A (en) 1968-02-20
BE655566A (en)
NL6413002A (en) 1965-05-13
OA01154A (en) 1968-08-07
CH450103A (en) 1968-01-15

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