GB896866A - Process for coating ferrous metals - Google Patents
Process for coating ferrous metalsInfo
- Publication number
- GB896866A GB896866A GB18897/60A GB1889760A GB896866A GB 896866 A GB896866 A GB 896866A GB 18897/60 A GB18897/60 A GB 18897/60A GB 1889760 A GB1889760 A GB 1889760A GB 896866 A GB896866 A GB 896866A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- metal
- bath
- chloride
- dipping
- 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
- 229910052751 metal Inorganic materials 0.000 title abstract 5
- 239000002184 metal Substances 0.000 title abstract 5
- 239000011248 coating agent Substances 0.000 title abstract 4
- 238000000576 coating method Methods 0.000 title abstract 4
- -1 ferrous metals Chemical class 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract 4
- 239000004411 aluminium Substances 0.000 abstract 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 3
- 239000002585 base Substances 0.000 abstract 3
- 238000007598 dipping method Methods 0.000 abstract 3
- 229910052708 sodium Inorganic materials 0.000 abstract 3
- 239000011734 sodium Substances 0.000 abstract 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 abstract 2
- 239000000956 alloy Substances 0.000 abstract 2
- 235000019270 ammonium chloride Nutrition 0.000 abstract 2
- 229910052791 calcium Inorganic materials 0.000 abstract 2
- 238000004140 cleaning Methods 0.000 abstract 2
- 229910052749 magnesium Inorganic materials 0.000 abstract 2
- 229910052700 potassium Inorganic materials 0.000 abstract 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 abstract 2
- 229910000789 Aluminium-silicon alloy Inorganic materials 0.000 abstract 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 229910001514 alkali metal chloride Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 229910001617 alkaline earth metal chloride Inorganic materials 0.000 abstract 1
- 229910052787 antimony Inorganic materials 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- 229910052790 beryllium Inorganic materials 0.000 abstract 1
- 229910052797 bismuth Inorganic materials 0.000 abstract 1
- 150000001805 chlorine compounds Chemical class 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 230000005496 eutectics Effects 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052745 lead Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229910052744 lithium Inorganic materials 0.000 abstract 1
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical class [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 239000011591 potassium Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 239000011701 zinc Substances 0.000 abstract 1
- 235000005074 zinc chloride Nutrition 0.000 abstract 1
- 239000011592 zinc chloride Substances 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 0.000 abstract 1
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
- C23C2/12—Aluminium 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
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
-
- 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
- C23C2/325—Processes or devices for cleaning the bath
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/66—Electroplating: Baths therefor from melts
Abstract
Before coating with aluminium or aluminium-base alloy by hot-dipping, a ferrous metal base is coated with a non-ferrous metal having a solubility in liquid aluminium not exceeding 8% by weight at 700 DEG C. (i.e. Cr, Ni, Pb, Ti, Mo, Be, Bi, Co, Mn, Sb, W, Zr) by chemical or electrolytic deposition from a fused bath consisting of ammonium chloride, at least one of the chlorides of Zn, Na, K, Li, Ca, Mg and Ba, and the chloride of the metal to be deposited. In the preferred sequence of operations, the base (which may be predominantly ferrous, e.g., steel, or may be an alloy in which iron is present in a minor amount) is (a) coated in a fused bath typically based on zinc chloride and containing p ammonium chloride, the triple eutectic of sodium, potassium and lithium chlorides and the chloride of the metal to be deposited in an amount of 0,2-3,0%, (b) optionally provided with a lead coating by hot-dipping, the lead being eventually displaced by the aluminium coating, (c) cleaned of heavy metal salts by dipping in a fused bath consisting of alkali metal or alkaline earth metal chlorides and optionally containing fluoride, and (d) dipped in a bath of aluminium-silicon alloy. The fused bath used for cleaning may contain at its bottom a layer of Na, Ca, Mg or Al. The aluminium bath may be provided with a top flux of the same composition as the cleaning bath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB18897/60A GB896866A (en) | 1960-05-27 | 1960-05-27 | Process for coating ferrous metals |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB18897/60A GB896866A (en) | 1960-05-27 | 1960-05-27 | Process for coating ferrous metals |
| LU39252 | 1960-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB896866A true GB896866A (en) | 1962-05-23 |
Family
ID=26253668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18897/60A Expired GB896866A (en) | 1960-05-27 | 1960-05-27 | Process for coating ferrous metals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB896866A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2169618A (en) * | 1985-01-14 | 1986-07-16 | Sanden Corp | Brazing aluminum |
| WO2003057940A1 (en) * | 2002-01-10 | 2003-07-17 | Umicore | Preparation of steel surfaces for single-dip aluminium-rich zinc galvanising |
| WO2009073917A1 (en) * | 2007-12-11 | 2009-06-18 | Bluescope Steel Limited | Method of metal coating and coating produced thereby |
-
1960
- 1960-05-27 GB GB18897/60A patent/GB896866A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2169618A (en) * | 1985-01-14 | 1986-07-16 | Sanden Corp | Brazing aluminum |
| WO2003057940A1 (en) * | 2002-01-10 | 2003-07-17 | Umicore | Preparation of steel surfaces for single-dip aluminium-rich zinc galvanising |
| US7160581B2 (en) | 2002-01-10 | 2007-01-09 | Umicore | Preparation of steel surfaces for single-dip aluminium-rich zinc galvanising |
| AU2002352160B2 (en) * | 2002-01-10 | 2007-09-06 | Umicore Zinc Alloys Belgium | Preparation of steel surfaces for single-dip aluminium-rich zinc galvanising |
| WO2009073917A1 (en) * | 2007-12-11 | 2009-06-18 | Bluescope Steel Limited | Method of metal coating and coating produced thereby |
| AU2008336255B2 (en) * | 2007-12-11 | 2013-09-05 | Bluescope Steel Limited | Method of metal coating and coating produced thereby |
| US10323313B2 (en) | 2007-12-11 | 2019-06-18 | Bluescope Steel Limited | Method of metal coating and coating produced thereby |
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