GB963547A - Process for the enamelling of iron articles with vitreous enamel - Google Patents
Process for the enamelling of iron articles with vitreous enamelInfo
- Publication number
- GB963547A GB963547A GB31523/61A GB3152361A GB963547A GB 963547 A GB963547 A GB 963547A GB 31523/61 A GB31523/61 A GB 31523/61A GB 3152361 A GB3152361 A GB 3152361A GB 963547 A GB963547 A GB 963547A
- Authority
- GB
- United Kingdom
- Prior art keywords
- volume
- pickled
- solution containing
- hno3
- borax
- 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
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
- C23C22/48—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 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/50—Treatment of iron or alloys based thereon
-
- 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
Abstract
Iron articles prior to enamelling with nitreous enamel are pickled to form a pickling residue in the form of a black layer which is fixed by treatment in a nickel plating bath and then passivated. After degreasing the iron is pickled in a cold aqueous solution containing by volume 50% HCl, 2% HNO3 and 0.2% chromic acid, rinsed and then pickled in a cold aqueous solution containing by volume 5% HNO3 and 0.1% copper sulphate. The fixing is effected in an aqueous plating bath containing by volume 2% inhibited phosphoric acid, 3% nickel sulphate and 1% borax at 50-80 DEG C. and finally passivated in a boiling weakly alkaline solution containing by volume 0.5% sodium nitrite and 0.5% borax and optionally phosphates.ALSO:Iron articles prior to enamelling with vitreous enamel are pickled to form a pickling residue in the form of a black layer which is fixed by treatment in a nickel plating bath and then passivated. After degreasing the iron is pickled in a cold aqueous solution containing by volume 50% HCl, 2%HNO3 and 0.2% chromic acid, rinsed and then pickled in a cold aqueous solution containing by volume 5% HNO3 and 0.1% copper sulphate. The fixing is effected in an aqueous plating bath containing by volume 2% inhibited phosphoric acid, 3% nickel sulphate and 1% borax at 50-80 DEG C. and finally passivated in a boiling weakly alkaline solution containing by volume 0.5% sodium nitrite and 0.5% borax and optionally phosphates.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK41889A DE1135264B (en) | 1960-10-15 | 1960-10-15 | Process for enamelling iron objects |
| DE19611796295 DE1796295B1 (en) | 1960-10-15 | 1961-07-22 | METHOD OF ENAMELLING IRON OBJECTS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB963547A true GB963547A (en) | 1964-07-08 |
Family
ID=25756144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31523/61A Expired GB963547A (en) | 1960-10-15 | 1961-09-01 | Process for the enamelling of iron articles with vitreous enamel |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3120458A (en) |
| CH (1) | CH378124A (en) |
| DE (2) | DE1135264B (en) |
| GB (1) | GB963547A (en) |
| NL (2) | NL122247C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE652530A (en) * | 1963-09-02 | |||
| US3530017A (en) * | 1967-05-08 | 1970-09-22 | Diversey Corp | Process for surface treatment of metal expansion alloys |
| US4567067A (en) * | 1985-04-24 | 1986-01-28 | Design & Manufacturing Corporation | Method of surface treatment of aluminum killed steel in preparation for porcelain coating |
| JP5729211B2 (en) * | 2010-08-31 | 2015-06-03 | Ｊｆｅスチール株式会社 | Cold rolled steel sheet manufacturing method, cold rolled steel sheet and automobile member |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1779273A (en) * | 1928-04-26 | 1930-10-21 | Hommel Oscar | Art of making enamel ware |
| US2772183A (en) * | 1953-09-24 | 1956-11-27 | Gen Am Transport | Chemical nickel plating processes |
| US2817610A (en) * | 1955-05-26 | 1957-12-24 | Isaac L Newell | Method for the production of black oxide coatings on steel and iron and composition therefor |
| US2961337A (en) * | 1958-10-08 | 1960-11-22 | Ferro Corp | Method of metal preparation for porcelain enameling |
-
0
- NL NL269606D patent/NL269606A/xx unknown
- NL NL122247D patent/NL122247C/xx active
-
1960
- 1960-10-15 DE DEK41889A patent/DE1135264B/en active Pending
-
1961
- 1961-07-22 DE DE19611796295 patent/DE1796295B1/en active Pending
- 1961-08-23 US US133310A patent/US3120458A/en not_active Expired - Lifetime
- 1961-09-01 GB GB31523/61A patent/GB963547A/en not_active Expired
- 1961-09-30 CH CH1132961A patent/CH378124A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1796295B1 (en) | 1971-09-16 |
| CH378124A (en) | 1964-05-31 |
| US3120458A (en) | 1964-02-04 |
| DE1135264B (en) | 1962-08-23 |
| NL269606A (en) | |
| NL122247C (en) | 1966-12-15 |
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