GB1304043A - - Google Patents

Info

Publication number
GB1304043A
GB1304043A GB1333770A GB1333770A GB1304043A GB 1304043 A GB1304043 A GB 1304043A GB 1333770 A GB1333770 A GB 1333770A GB 1333770 A GB1333770 A GB 1333770A GB 1304043 A GB1304043 A GB 1304043A
Authority
GB
United Kingdom
Prior art keywords
immersion
march
milling
flashpickling
pretreated
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
GB1333770A
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 filed Critical
Publication of GB1304043A publication Critical patent/GB1304043A/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
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/10—Etching compositions
    • C23F1/14—Aqueous compositions
    • C23F1/16—Acidic compositions
    • C23F1/26—Acidic compositions for etching refractory metals

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)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

1304043 Chemical milling of titanium ARMCO STEEL CORP 19 March 1970 [20 March 1969] 13337/70 Heading C7E Ti and Ti-based alloys are chemically milled by treatment in an aqueous solution of 2 to less than 10 volume % HF and 1-10% HCl, the remainder being water, at 65-140‹F. Milling may be by immersion for 5-25 minutes, and any smut remaining may be removed by immersion in aqueous HNO 3 /HF. Badly scaled Ti may be pretreated in a NaOH-based melt or by flashpickling with H 2 SO 4 .
GB1333770A 1969-03-20 1970-03-19 Expired GB1304043A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80902769A 1969-03-20 1969-03-20

Publications (1)

Publication Number Publication Date
GB1304043A true GB1304043A (en) 1973-01-24

Family

ID=25200375

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1333770A Expired GB1304043A (en) 1969-03-20 1970-03-19

Country Status (6)

Country Link
US (1) US3666580A (en)
JP (1) JPS4843251B1 (en)
DE (1) DE2013149A1 (en)
FR (1) FR2039062A5 (en)
GB (1) GB1304043A (en)
SE (1) SE364078B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048622A1 (en) * 1980-09-22 1982-03-31 Uop Inc. Method for improving the electrical conductivity of a steel surface having a coating of ferrous oxide

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE381289B (en) * 1973-06-21 1975-12-01 Nyby Bruk Ab TWO-STEP BETTING PROCEDURE
JPS5470162U (en) * 1977-10-28 1979-05-18
US4540465A (en) * 1984-06-11 1985-09-10 Mcdonnell Douglas Corporation Process for continuous recovery of nitric acid/hydrofluoric acid titanium etchant
US4943419A (en) * 1988-05-24 1990-07-24 Megy Joseph A Process for recovering alkali metal titanium fluoride salts from titanium pickle acid baths
US4900398A (en) * 1989-06-19 1990-02-13 General Motors Corporation Chemical milling of titanium
US5100500A (en) * 1991-02-08 1992-03-31 Aluminum Company Of America Milling solution and method
US5248386A (en) * 1991-02-08 1993-09-28 Aluminum Company Of America Milling solution and method
DE4113283C2 (en) * 1991-04-24 1994-05-05 Kernforschungsz Karlsruhe Use of an etching solution for the selective etching of a metallic sacrificial layer in the production of microstructures
DE19843738A1 (en) * 1998-09-24 2000-03-30 Univ Ilmenau Tech Surface activation of group IVb, Vb and VIb metals, especially nickel-titanium shape memory elements for micro-systems, comprises two-stage pickling in hydrofluoric acid-free solutions prior to metal coating
US20080169270A1 (en) * 2007-01-17 2008-07-17 United Technologies Corporation Method of removing a case layer from a metal alloy
JP2012224894A (en) * 2011-04-18 2012-11-15 Sumitomo Metal Ind Ltd Method of removing scale on titanium plate
JP2013234358A (en) 2012-05-09 2013-11-21 Mitsubishi Heavy Ind Ltd Method of removing work-affected layer
JP7032651B2 (en) * 2018-07-17 2022-03-09 日本電信電話株式会社 Hydrogen analysis system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048622A1 (en) * 1980-09-22 1982-03-31 Uop Inc. Method for improving the electrical conductivity of a steel surface having a coating of ferrous oxide

Also Published As

Publication number Publication date
US3666580A (en) 1972-05-30
JPS4843251B1 (en) 1973-12-18
DE2013149A1 (en) 1970-10-01
FR2039062A5 (en) 1971-01-08
SE364078B (en) 1974-02-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees