IT1261037B - Adhering a coloured electroplated layer to a zinc@ electroplated steel article - by electroplating the layer at a given voltage and then at a given current density - Google Patents
Adhering a coloured electroplated layer to a zinc@ electroplated steel article - by electroplating the layer at a given voltage and then at a given current densityInfo
- Publication number
- IT1261037B IT1261037B ITTO930012A IT1261037B IT 1261037 B IT1261037 B IT 1261037B IT TO930012 A ITTO930012 A IT TO930012A IT 1261037 B IT1261037 B IT 1261037B
- Authority
- IT
- Italy
- Prior art keywords
- layer
- electroplated
- electroplating
- coloured
- zinc
- Prior art date
Links
- 238000009713 electroplating Methods 0.000 title abstract 4
- 229910000831 Steel Inorganic materials 0.000 title abstract 2
- 239000010959 steel Substances 0.000 title abstract 2
- 229910052725 zinc Inorganic materials 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 150000001868 cobalt Chemical class 0.000 abstract 1
- 238000005868 electrolysis reaction Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 150000004760 silicates Chemical class 0.000 abstract 1
Landscapes
- Electroplating Methods And Accessories (AREA)
Abstract
A coloured electroplating layer is adhered on a zinc- electroplated steel article using an alternating current power supply of a frequency of 10-20 Hz. A two stage electrolysis is performed. In stage (i) electroplating is carried out at a constant voltage of 60-120 volts in an electroplating liquid at 20-30 deg.C contg. 150-200 g/l. silicates, 15-20 g/l. sodium hydroxide and 2-50 g/l. cobalt salts. In stage (ii) a constant current density of 20-80 amp/dm2 is applied.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000012 IT1261037B (en) | 1993-01-13 | 1993-01-13 | Adhering a coloured electroplated layer to a zinc@ electroplated steel article - by electroplating the layer at a given voltage and then at a given current density |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000012 IT1261037B (en) | 1993-01-13 | 1993-01-13 | Adhering a coloured electroplated layer to a zinc@ electroplated steel article - by electroplating the layer at a given voltage and then at a given current density |
Publications (3)
Publication Number | Publication Date |
---|---|
ITTO930012A0 ITTO930012A0 (en) | 1993-01-13 |
ITTO930012A1 ITTO930012A1 (en) | 1994-07-13 |
IT1261037B true IT1261037B (en) | 1996-05-08 |
Family
ID=11410989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT000012 IT1261037B (en) | 1993-01-13 | 1993-01-13 | Adhering a coloured electroplated layer to a zinc@ electroplated steel article - by electroplating the layer at a given voltage and then at a given current density |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1261037B (en) |
-
1993
- 1993-01-13 IT IT000012 patent/IT1261037B/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ITTO930012A0 (en) | 1993-01-13 |
ITTO930012A1 (en) | 1994-07-13 |
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