GB365425A - Improved process for removal of vitreous enamel from metal articles - Google Patents

Improved process for removal of vitreous enamel from metal articles

Info

Publication number
GB365425A
GB365425A GB1050131A GB1050131A GB365425A GB 365425 A GB365425 A GB 365425A GB 1050131 A GB1050131 A GB 1050131A GB 1050131 A GB1050131 A GB 1050131A GB 365425 A GB365425 A GB 365425A
Authority
GB
United Kingdom
Prior art keywords
removal
solution
vitreous enamel
improved process
caustic soda
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
GB1050131A
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.)
Victor Chemical Works
Original Assignee
Victor Chemical Works
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 Victor Chemical Works filed Critical Victor Chemical Works
Priority to GB1050131A priority Critical patent/GB365425A/en
Publication of GB365425A publication Critical patent/GB365425A/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
    • C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D17/00—De-enamelling

Abstract

The removal of vitreous enamel from enamelled metal ware is effected by treating the articles with hot caustic alkali of from 20-70 per cent concentration. For example, a solution of 40-50 per cent caustic soda or caustic potash maintained at boiling point, i.e. 125-145 DEG C., may be employed, the solution being agitated so that the sludge formed does not settle. The removal of enamel by the use of a sand blast, and by treatment with hydrofluoric acid, fused caustic soda, or dilute caustic soda solution, is referred to.
GB1050131A 1931-04-09 1931-04-09 Improved process for removal of vitreous enamel from metal articles Expired GB365425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1050131A GB365425A (en) 1931-04-09 1931-04-09 Improved process for removal of vitreous enamel from metal articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1050131A GB365425A (en) 1931-04-09 1931-04-09 Improved process for removal of vitreous enamel from metal articles

Publications (1)

Publication Number Publication Date
GB365425A true GB365425A (en) 1932-01-21

Family

ID=9968998

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1050131A Expired GB365425A (en) 1931-04-09 1931-04-09 Improved process for removal of vitreous enamel from metal articles

Country Status (1)

Country Link
GB (1) GB365425A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421617A (en) * 1943-02-03 1947-06-03 Vickers Electrical Co Ltd Method of removing coatings from metallic conductors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421617A (en) * 1943-02-03 1947-06-03 Vickers Electrical Co Ltd Method of removing coatings from metallic conductors

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