- Contact Person : Mr. Du Nick
- Company Name : Foshan Guangyuan Technology Co., Ltd.
- Tel : 86-757-85438329
- Fax : 86-757-85438329
- Address : Guangdong,Foshan,XingZhongDa Industrial Zone, Luohang, Jinsha, Danzao, Nanhai, Foshan
- Country/Region : China
- Zip : China
TVC Trivalent Chrome Plating For Furnature & Door Hindge
TVC Trivalent Chrome Plating For Furnature and Door Hindge
Operation instruction
TVC trivalent chromium technology not only can meet the need of chromate procedure
but also can meet the requirement for environmental safety.
Trivalent chromium Cr-plating technology has the characteristics as follow:
This process can eliminate the emission of toxic hexvalvalent chromium from the plating
factory. It can tolerate the block of current, has a good even-plating ability, improve the covering
capacity, reduce the burning situation on high current density area.
This process uses graphite as the anode, and has long life, no pollution, no lead.
The sensitivity of metal ions impurities, which is in the bath, can be removed by
ion-exchange device,
TVC baths composition:
Materials range best
TVC-BC make-up agent 375-450g/l 410g/l
(trivalent chromium 20-24g/l 22g/l)
TVC-CAT stabilizer 50-70ml/l 60ml/l
TVC-MS wetting agent 2-5ml/l 3ml/l
TVC-EXT complexing agent 1-2ml/l 1ml/l
operation condition
pH value 2.5-3.0 2.8
Temperature 29-35°C 32°C
Agitate slight air agitate should be better.
Cathode current density 8-16A/dm2 13A/dm2
Anode current density 3.25-5.5A/dm2 4.25 A/dm2
Anode special graphite anode
Proportion 1.20-1.22(32°C) 1.21(32°C)
Application:
Chrome Plating widely apply in the industries of Furnature and constructural hardware such as door hindge and lock and automobile and so on.
TVC Trivalent Chrome Plating For Furnature & Door Hindge
