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 density

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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
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IT
Italy
Prior art keywords
layer
electroplated
electroplating
coloured
zinc
Prior art date
Application number
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Italian (it)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to IT000012 priority Critical patent/IT1261037B/en
Publication of ITTO930012A0 publication Critical patent/ITTO930012A0/en
Publication of ITTO930012A1 publication Critical patent/ITTO930012A1/en
Application granted granted Critical
Publication of IT1261037B publication Critical patent/IT1261037B/en

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  • 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.
IT000012 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 IT1261037B (en)

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)

Also Published As

Publication number Publication date
ITTO930012A0 (en) 1993-01-13
ITTO930012A1 (en) 1994-07-13

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