GB1403245A - Coating process - Google Patents
Coating processInfo
- Publication number
- GB1403245A GB1403245A GB4875872A GB4875872A GB1403245A GB 1403245 A GB1403245 A GB 1403245A GB 4875872 A GB4875872 A GB 4875872A GB 4875872 A GB4875872 A GB 4875872A GB 1403245 A GB1403245 A GB 1403245A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bath
- granules
- oct
- strip
- compounds
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium 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
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
- C23C2/22—Removing excess of molten coatings; Controlling or regulating the coating thickness by rubbing, e.g. using knives, e.g. rubbing solids
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
1403245 Galvanizing wire or strip N V BEKAERTSA 23 Oct 1972 [21 Oct 1971] 48758/72 Heading C7F In a process for hot dipping continuous lengths of metal, e.g. steel wire or strip, with Zn, the formation of an oxide film forming on the coated substrate emerging from the bath is prevented by (1) covering the surface of the Zn bath where the coated substrate emerges with a layer of small, rounded refractory granules, inert to Zn, e.g. glass beads of 2.5 to 6 mm dia, (2) injecting a substantially non-oxidizing atmosphere into the granules e.g. CH 4 , C 3 H 8 , natural gas, Ar,N 2 ,C 4 H 10 , and (3) introducing a substance to the granules or the bath which reduces any Z n O formed, e.g. a small amount of Al in the bath, or the addition of a compound of the general formula R-(S) n -R<SP>1</SP> to the granules, where R and R<SP>1</SP> are aliphatic or aromatic groups, and R<SP>1</SP> may also be H. Examples of these compounds are mercaptaus, e.g. methyl mercaptan CH 3 SH, disulphides e.g. dimethyl disulphide, monosulphides, and polysulphides. Other suitable substances include (NH 4 ) 2 S, NH 4 Cl and' compounds of the general formula R<SP>1</SP> Cl. Prior to hotdipping, the material may be passed through a Pb bath, pickled in HCl, washed, passed through a flux of ZnCl 2 -NH 4 Cl and dried.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU64119 | 1971-10-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1403245A true GB1403245A (en) | 1975-08-28 |
Family
ID=19726860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4875872A Expired GB1403245A (en) | 1971-10-21 | 1972-10-23 | Coating process |
Country Status (12)
| Country | Link |
|---|---|
| AR (1) | AR198061A1 (en) |
| AT (1) | AT321056B (en) |
| BE (1) | BE790433A (en) |
| BR (1) | BR7207367D0 (en) |
| CA (1) | CA990594A (en) |
| DE (1) | DE2264650C3 (en) |
| ES (1) | ES407861A1 (en) |
| FR (1) | FR2156722B1 (en) |
| GB (1) | GB1403245A (en) |
| IE (1) | IE36788B1 (en) |
| LU (1) | LU64119A1 (en) |
| ZA (1) | ZA727461B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0039422A2 (en) * | 1980-04-11 | 1981-11-11 | Bethlehem Steel Corporation | Method of preventing defects in aluminium-zinc alloy coatings obtained by a hot-dip process, and apparatus therefor |
| GB2281309A (en) * | 1993-08-27 | 1995-03-01 | Boc Group Plc | Post-treatment of galvanised metal using reducing gas |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ188953A (en) * | 1977-12-15 | 1982-12-21 | Australian Wire Ind Pty | Coating control of wire emerging from metal bath |
| CN113088856B (en) * | 2021-03-31 | 2022-12-23 | 江西科技师范大学 | Deep eutectic solvent hot galvanizing additive and preparation method and application thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD70726A (en) * | ||||
| US1773495A (en) * | 1928-08-21 | 1930-08-19 | Newhall Henry B Corp | Process and apparatus for treating galvanized articles |
| US2197622A (en) * | 1937-04-22 | 1940-04-16 | American Rolling Mill Co | Process for galvanizing sheet metal |
| FR1530948A (en) * | 1966-07-11 | 1968-06-28 | Cominco Ltd | Process for producing colored coatings, in particular based on zinc |
-
1971
- 1971-10-21 LU LU64119D patent/LU64119A1/en unknown
-
1972
- 1972-10-12 CA CA153,747A patent/CA990594A/en not_active Expired
- 1972-10-13 FR FR7236299A patent/FR2156722B1/fr not_active Expired
- 1972-10-19 ZA ZA727461A patent/ZA727461B/en unknown
- 1972-10-19 AR AR244718A patent/AR198061A1/en active
- 1972-10-20 IE IE1425/72A patent/IE36788B1/en unknown
- 1972-10-20 BR BR007367/72A patent/BR7207367D0/en unknown
- 1972-10-20 DE DE2264650A patent/DE2264650C3/en not_active Expired
- 1972-10-21 ES ES407861A patent/ES407861A1/en not_active Expired
- 1972-10-23 GB GB4875872A patent/GB1403245A/en not_active Expired
- 1972-10-23 AT AT905372A patent/AT321056B/en not_active IP Right Cessation
- 1972-10-23 BE BE790433A patent/BE790433A/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0039422A2 (en) * | 1980-04-11 | 1981-11-11 | Bethlehem Steel Corporation | Method of preventing defects in aluminium-zinc alloy coatings obtained by a hot-dip process, and apparatus therefor |
| EP0039422A3 (en) * | 1980-04-11 | 1981-12-16 | Bethlehem Steel Corporation | Method of preventing defects in aluminium-zinc alloy coatings obtained by a hot-dip process, and apparatus therefor |
| GB2281309A (en) * | 1993-08-27 | 1995-03-01 | Boc Group Plc | Post-treatment of galvanised metal using reducing gas |
| GB2281309B (en) * | 1993-08-27 | 1997-04-23 | Boc Group Plc | A method of galvanising |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA727461B (en) | 1973-07-25 |
| DE2251604A1 (en) | 1973-04-26 |
| DE2264650A1 (en) | 1974-08-29 |
| FR2156722B1 (en) | 1975-03-14 |
| ES407861A1 (en) | 1975-10-01 |
| DE2264650B2 (en) | 1979-11-22 |
| LU64119A1 (en) | 1972-05-12 |
| BR7207367D0 (en) | 1973-08-23 |
| AR198061A1 (en) | 1974-05-31 |
| AT321056B (en) | 1975-03-10 |
| DE2251604B2 (en) | 1975-05-22 |
| AU4796172A (en) | 1974-04-26 |
| BE790433A (en) | 1973-02-15 |
| CA990594A (en) | 1976-06-08 |
| DE2264650C3 (en) | 1980-07-31 |
| FR2156722A1 (en) | 1973-06-01 |
| IE36788L (en) | 1973-04-21 |
| IE36788B1 (en) | 1977-02-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |