GB287450A - Process of improving the resistance to corrosion of magnesium and magnesium alloys - Google Patents

Process of improving the resistance to corrosion of magnesium and magnesium alloys

Info

Publication number
GB287450A
GB287450A GB7423/28A GB742328A GB287450A GB 287450 A GB287450 A GB 287450A GB 7423/28 A GB7423/28 A GB 7423/28A GB 742328 A GB742328 A GB 742328A GB 287450 A GB287450 A GB 287450A
Authority
GB
United Kingdom
Prior art keywords
magnesium
bichromate
corrosion
improving
resistance
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
GB7423/28A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB287450A publication Critical patent/GB287450A/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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Heat Treatment Of Articles (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

287,450. I. G. Farbenindustrie Akt.- Ges. March 19, 1927, [Convention date]. Coating. - Magnesium and magnesium alloys are protected against corrosion by subjecting them to the simultaneous or successive actions of an acid other than hydrochloric or sulphuric acids and of bichromates. The solution may consist of bichromate and chromic acid, or of bichromate and nitric acid, and the treated articles may be washed with cold and hot water which may contain some bichromate. The resulting coating may serve as a base for lacquers, or the, like.
GB7423/28A 1923-02-02 1928-03-09 Process of improving the resistance to corrosion of magnesium and magnesium alloys Expired GB287450A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE1783770X 1923-02-02
DE287450X 1927-03-19
DE668868X 1928-02-02
DE305197X 1928-02-02
DEI33414D DE493827C (en) 1923-02-02 1928-02-03 Process for improving the corrosion resistance of fittings made of magnesium alloys

Publications (1)

Publication Number Publication Date
GB287450A true GB287450A (en) 1928-10-18

Family

ID=61187897

Family Applications (2)

Application Number Title Priority Date Filing Date
GB7423/28A Expired GB287450A (en) 1923-02-02 1928-03-09 Process of improving the resistance to corrosion of magnesium and magnesium alloys
GB34412/28A Expired GB305197A (en) 1923-02-02 1928-11-22 Process of improving the resistance to corrosion of magnesium and magnesium alloys

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB34412/28A Expired GB305197A (en) 1923-02-02 1928-11-22 Process of improving the resistance to corrosion of magnesium and magnesium alloys

Country Status (4)

Country Link
BE (1) BE357549A (en)
DE (1) DE493827C (en)
FR (1) FR668868A (en)
GB (2) GB287450A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2796369A (en) * 1953-04-15 1957-06-18 Poor & Co Method of protecting zinc-copper alloys against corrosion and product thereof
US2887418A (en) * 1956-12-24 1959-05-19 Dow Chemical Co Composition for and method of chrome pickling of magnesium shapes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2796369A (en) * 1953-04-15 1957-06-18 Poor & Co Method of protecting zinc-copper alloys against corrosion and product thereof
US2887418A (en) * 1956-12-24 1959-05-19 Dow Chemical Co Composition for and method of chrome pickling of magnesium shapes

Also Published As

Publication number Publication date
FR668868A (en) 1929-11-07
BE357549A (en) 1929-02-28
GB305197A (en) 1929-08-15
DE493827C (en) 1930-03-12

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