GB781521A - Improvements in or relating to surface de-oxidising of copper-base alloys - Google Patents
Improvements in or relating to surface de-oxidising of copper-base alloysInfo
- Publication number
- GB781521A GB781521A GB15406/55A GB1540655A GB781521A GB 781521 A GB781521 A GB 781521A GB 15406/55 A GB15406/55 A GB 15406/55A GB 1540655 A GB1540655 A GB 1540655A GB 781521 A GB781521 A GB 781521A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- sodium
- solution
- water
- cleaning medium
- 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
- 239000000956 alloy Substances 0.000 title abstract 3
- 229910045601 alloy Inorganic materials 0.000 title abstract 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 4
- 238000004140 cleaning Methods 0.000 abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- -1 alkyl-aryl sulphonate Chemical compound 0.000 abstract 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group 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 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 2
- 239000004133 Sodium thiosulphate Substances 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 125000000217 alkyl group Chemical group 0.000 abstract 2
- 229910021538 borax Inorganic materials 0.000 abstract 2
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 abstract 2
- 229910017604 nitric acid Inorganic materials 0.000 abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 2
- 229910052708 sodium Inorganic materials 0.000 abstract 2
- 239000011734 sodium Substances 0.000 abstract 2
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 2
- 239000001488 sodium phosphate Substances 0.000 abstract 2
- 229910000162 sodium phosphate Inorganic materials 0.000 abstract 2
- 235000010339 sodium tetraborate Nutrition 0.000 abstract 2
- 239000004328 sodium tetraborate Substances 0.000 abstract 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 abstract 2
- 235000019345 sodium thiosulphate Nutrition 0.000 abstract 2
- 238000005476 soldering Methods 0.000 abstract 2
- 239000001117 sulphuric acid Substances 0.000 abstract 2
- 235000011149 sulphuric acid Nutrition 0.000 abstract 2
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 238000010405 reoxidation reaction Methods 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
- 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
- C23C22/60—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 alkaline aqueous solutions with pH greater than 8
- C23C22/63—Treatment of copper or alloys based thereon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/226—Non-corrosive coatings; Primers applied before welding
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Copper-base alloy parts are prepared for subsequent soldering operations by treatment first with an alkaline cleaning medium, then with a solution consisting of equal parts by volume of sulphuric acid, nitric acid and water, and then, to inhibit re-oxidation, with a solution of 0.5-16 oz. of a mixture consisting of, by weight, 65-85 per cent of sodium thiosulphate, 12-24 per cent of sodium tetraborate and 5-10 per cent of an alkyl-aryl sulphonate, in one gallon of water. The alkaline cleaning medium may be a solution based on sodium carbonate, hydroxide and phosphate, and a suitable alkyl-aryl sulphonate is sodium alkyl naphthalene sulphonate.ALSO:Copper-base alloy parts are prepared for subsequent soldering operations by treatment first with an alkaline cleaning medium, then de-oxidized by treatment with a solution consisting of equal parts by volume of sulphuric acid, nitric acid and water, and then treated, to inhibit reoxidation, with a solution of 1/2 -16 oz. of a mixture consisting of, by weight, 65-85 per cent sodium thiosulphate, 12-24 per cent sodium tetraborate and 5-10 per cent of an alky-aryl sulphonate, in one gallon of water. The alkaline cleaning medium may be a solution based on sodium carbonate, hydroxide and phosphate, and a suitable alkyl-aryl sulphonate is sodium alkyl naphthalene sulphonate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US781521XA | 1954-06-01 | 1954-06-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB781521A true GB781521A (en) | 1957-08-21 |
Family
ID=22142252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15406/55A Expired GB781521A (en) | 1954-06-01 | 1955-05-27 | Improvements in or relating to surface de-oxidising of copper-base alloys |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1130066A (en) |
| GB (1) | GB781521A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2313844A (en) * | 1996-06-08 | 1997-12-10 | Reckitt & Colmann Prod Ltd | Cleaning composition |
| ITPO20120002A1 (en) * | 2012-02-09 | 2012-05-10 | Emanuele Muto | FORMULATED FOR THE ATOMIC KINETIC DEGASSIFICATION TREATMENT OF NOBLE AND PRECIOUS ELEMENTS |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3533886A1 (en) * | 1985-04-16 | 1987-03-26 | Kraftwerk Union Ag | CLEANING PROCEDURE |
-
1955
- 1955-05-04 FR FR1130066D patent/FR1130066A/en not_active Expired
- 1955-05-27 GB GB15406/55A patent/GB781521A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2313844A (en) * | 1996-06-08 | 1997-12-10 | Reckitt & Colmann Prod Ltd | Cleaning composition |
| US5958854A (en) * | 1996-06-08 | 1999-09-28 | Reckitt & Colman Products Limited | Silver polish formulation containing thiourea |
| ITPO20120002A1 (en) * | 2012-02-09 | 2012-05-10 | Emanuele Muto | FORMULATED FOR THE ATOMIC KINETIC DEGASSIFICATION TREATMENT OF NOBLE AND PRECIOUS ELEMENTS |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1130066A (en) | 1957-01-30 |
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