PELAPISAN LISTRIK KHROM PADA PRODUK KUNINGAN INDUSTRI RUMAH TANGGA DI SUMATERA BARAT DENGAN SUMBER ENERGI BATEREI 60 A/12 V
Abstract: In West
Sumatra, the creation
of domestic industrial
metal copper, steel,
chromium-coated products do not
coated by chrome yet, so it is less interested in the community. Electroplating
chrome with a simplified method is expected to increase the added value.
Electroplating of copper (Cu) and nickel (Ni) to the steel plate is needed before chromium
(Cr) coating. It
aims to improve
the adhesive of
steel plate and
to brighten the
coating. A solution system used
is copper sulfate (CuSO4), i = 6.68 A / dm 2 and t = 2 min, nickel sulfate
(NiSO4), i = 3.5 A / dm 2 and t = 2 minutes and chromium acid (HCrO3), i = 5.1
A / dm 2 and t = 20 min. The energy source is a 12 volt 60 Ampere battery. The result shows that:
a) the average layer thickness is; Cu 8.54 µm,
Ni: 6.65 µm, and Cr: 3.23 µm. b)
the adhesive of both layers are good, since there’s no cracks when bending 90 o
and 180 o C) coating to some products which are made of brass with chrome anode
showed a white color and shiny chrome.
Penulis: Asfarizal Saad dan
Nurzal
Kode Jurnal: jptmesindd140209
