GB365422A - Improvements in and relating to methods of forming an insulating layer on metals - Google Patents

Improvements in and relating to methods of forming an insulating layer on metals

Info

Publication number
GB365422A
GB365422A GB10272/31A GB1027231A GB365422A GB 365422 A GB365422 A GB 365422A GB 10272/31 A GB10272/31 A GB 10272/31A GB 1027231 A GB1027231 A GB 1027231A GB 365422 A GB365422 A GB 365422A
Authority
GB
United Kingdom
Prior art keywords
metal
insulating layer
fluoride
bath
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
GB10272/31A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB365422A publication Critical patent/GB365422A/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
    • C23C22/70—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 melts

Abstract

An insulating layer is formed on metal by immersing the metal in a molten fluoride bath, the metal being withdrawn and allowed to cool in a non-oxidizing atmosphere. Copper wire may be treated in a bath of molten potassium fluoride and withdrawn and allowed p to cool in an atmosphere of carbon dioxide. It is stated that the insulating layer consists of a layer of the fluoride of the metal covered by a thin layer of the fluoride used as the bath. The coating may be effected electrolytically by passing a current through the metal and the fused salt.
GB10272/31A 1930-04-08 1931-04-07 Improvements in and relating to methods of forming an insulating layer on metals Expired GB365422A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE575251T 1930-04-08

Publications (1)

Publication Number Publication Date
GB365422A true GB365422A (en) 1932-01-21

Family

ID=34584648

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10272/31A Expired GB365422A (en) 1930-04-08 1931-04-07 Improvements in and relating to methods of forming an insulating layer on metals

Country Status (3)

Country Link
US (1) US1905753A (en)
DE (1) DE575251C (en)
GB (1) GB365422A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759886A (en) * 1943-05-18 1956-08-21 Homer F Priest Process of treating steel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759886A (en) * 1943-05-18 1956-08-21 Homer F Priest Process of treating steel

Also Published As

Publication number Publication date
US1905753A (en) 1933-04-25
DE575251C (en) 1933-04-26

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