GB396746A - Improvements in and relating to the treatment of non-ferrous alloys to protect them against corrosion - Google Patents

Improvements in and relating to the treatment of non-ferrous alloys to protect them against corrosion

Info

Publication number
GB396746A
GB396746A GB333132A GB333132A GB396746A GB 396746 A GB396746 A GB 396746A GB 333132 A GB333132 A GB 333132A GB 333132 A GB333132 A GB 333132A GB 396746 A GB396746 A GB 396746A
Authority
GB
United Kingdom
Prior art keywords
relating
protect
treatment
against corrosion
per cent
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
GB333132A
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.)
HORACE CAMPBELL HALL
Original Assignee
HORACE CAMPBELL HALL
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 HORACE CAMPBELL HALL filed Critical HORACE CAMPBELL HALL
Priority to GB333132A priority Critical patent/GB396746A/en
Publication of GB396746A publication Critical patent/GB396746A/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
    • C23C22/02—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 non-aqueous solutions
    • C23C22/03—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 non-aqueous solutions containing phosphorus compounds

Abstract

A protective coating is formed on non-ferrous metals and alloys, particularly high percentage aluminium alloys, by immersion in a hot solution of phosphoric acid in ethylene glycol, glycerol, trimethylene glycol, or a mixture of two or all of these substances. Preferably the commercial substances containing up to 10 per cent of water are used or up to 10 per cent of water may be added if desired to pure glycol &c. The coated articles are washed, preferably in a dilute alkaline solution, and may then be stoved in air or oil for a few hours at a temperature of from 100 DEG to 200 DEG C. The coating may be used as a base for paint, varnish, or enamel.
GB333132A 1932-02-04 1932-02-04 Improvements in and relating to the treatment of non-ferrous alloys to protect them against corrosion Expired GB396746A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB333132A GB396746A (en) 1932-02-04 1932-02-04 Improvements in and relating to the treatment of non-ferrous alloys to protect them against corrosion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB333132A GB396746A (en) 1932-02-04 1932-02-04 Improvements in and relating to the treatment of non-ferrous alloys to protect them against corrosion

Publications (1)

Publication Number Publication Date
GB396746A true GB396746A (en) 1933-08-04

Family

ID=9756293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB333132A Expired GB396746A (en) 1932-02-04 1932-02-04 Improvements in and relating to the treatment of non-ferrous alloys to protect them against corrosion

Country Status (1)

Country Link
GB (1) GB396746A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3198673A (en) * 1961-06-27 1965-08-03 Lite Chemical Corp Du Corrosion resistant coatings
EP1101837A1 (en) * 1999-11-22 2001-05-23 STMicroelectronics S.r.l. Moisture corrosion inhibitor layer for Al-alloy metallization layers, particularly for electronic devices and corresponding manufacturing method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3198673A (en) * 1961-06-27 1965-08-03 Lite Chemical Corp Du Corrosion resistant coatings
EP1101837A1 (en) * 1999-11-22 2001-05-23 STMicroelectronics S.r.l. Moisture corrosion inhibitor layer for Al-alloy metallization layers, particularly for electronic devices and corresponding manufacturing method
US6525404B1 (en) 1999-11-22 2003-02-25 Stmicroelectronics S.R.L. Moisture corrosion inhibitor layer for Al-alloy metallization layers, particularly for electronic devices and corresponding manufacturing method
US6762123B2 (en) 1999-11-22 2004-07-13 Stmicroelectronics S.R.L. Moisture corrosion inhibitor layer for Al-alloy metallization layers, particularly for electronic devices and corresponding manufacturing method

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