ES473095A1 - Method of partially enamelling articles of stainless steel - Google Patents

Method of partially enamelling articles of stainless steel

Info

Publication number
ES473095A1
ES473095A1 ES473095A ES473095A ES473095A1 ES 473095 A1 ES473095 A1 ES 473095A1 ES 473095 A ES473095 A ES 473095A ES 473095 A ES473095 A ES 473095A ES 473095 A1 ES473095 A1 ES 473095A1
Authority
ES
Spain
Prior art keywords
enamel
pickling
articles
enamelling
layer
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
ES473095A
Other languages
Spanish (es)
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.)
Apparatenfabriek Atag BV
Original Assignee
Apparatenfabriek Atag BV
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 Apparatenfabriek Atag BV filed Critical Apparatenfabriek Atag BV
Publication of ES473095A1 publication Critical patent/ES473095A1/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
    • C23D3/00—Chemical treatment of the metal surfaces prior to coating
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F3/00—Electrolytic etching or polishing
    • C25F3/16—Polishing
    • C25F3/22—Polishing of heavy metals
    • C25F3/24—Polishing of heavy metals of iron or steel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Coating With Molten Metal (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Specific Conveyance Elements (AREA)

Abstract

A method of partially enamelling articles of stainless steel in which areas of the articles are left un-enamelled comprises degreasing at least the areas to be enamelled and pretreating with an adhesion improving treatment prior to covering with enamel, firing the enamel and polishing the enamel-free surfaces. The adhesion improving treatment involves applying a layer of nickel, cobalt or copper then electroplating with an adhesion incurring layer of iron. A mean thickness of an electroplated iron layer in the range of from 5 mu to 20 mu is preferred. The iron layer is improved by picking before enamelling, either electrolytically or chemically. Removal of oxides, scales and intermediate layers from the enamel free areas after firing is performed by pickling in a sulphuric acid and phosphoric acid liquor. Improved removal is achieved by first anodically electrolytically pickling the article, then chemically pickling it and then alternately anodically and cathodically electrolytically pickling the article.
ES473095A 1977-09-06 1978-09-05 Method of partially enamelling articles of stainless steel Expired ES473095A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7709807A NL7709807A (en) 1977-09-06 1977-09-06 METHOD OF ENAMELING A STAINLESS STEEL OBJECT AND ENAMELED STAINLESS STEEL OBJECT.

Publications (1)

Publication Number Publication Date
ES473095A1 true ES473095A1 (en) 1979-04-01

Family

ID=19829141

Family Applications (1)

Application Number Title Priority Date Filing Date
ES473095A Expired ES473095A1 (en) 1977-09-06 1978-09-05 Method of partially enamelling articles of stainless steel

Country Status (11)

Country Link
JP (1) JPS5488922A (en)
BE (1) BE870282A (en)
DE (1) DE2837012C3 (en)
DK (1) DK390878A (en)
ES (1) ES473095A1 (en)
FI (1) FI782723A (en)
FR (1) FR2402010A1 (en)
GB (1) GB2005721A (en)
NL (1) NL7709807A (en)
NO (1) NO783031L (en)
SE (1) SE7809314L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546533A1 (en) * 1983-05-26 1984-11-30 Entrepots Menagers Process for obtaining articles made of enamelled nonoxidisable metal
FR2844282A1 (en) * 2002-09-06 2004-03-12 Usinor Steel object provided with protective composite coating of enamel and copper or a copper alloy and a final upper layer of enamel, notably for household appliances
IT202000002725A1 (en) * 2020-02-12 2021-08-12 D M C Srl METHOD OF OPAQUE ENAMELING OF METALLIC OBJECTS AND PRODUCT OBTAINED THUS

Also Published As

Publication number Publication date
FR2402010A1 (en) 1979-03-30
GB2005721A (en) 1979-04-25
DE2837012B2 (en) 1980-02-28
DK390878A (en) 1979-03-07
FI782723A (en) 1979-03-07
NO783031L (en) 1979-03-07
JPS5488922A (en) 1979-07-14
NL7709807A (en) 1979-03-08
SE7809314L (en) 1979-03-07
DE2837012A1 (en) 1979-03-15
BE870282A (en) 1979-03-07
DE2837012C3 (en) 1980-10-16

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