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Asfarizal Saad
Institut Teknologi Padang
Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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PELAPISAN LISTRIK KHROM PADA PRODUK KUNINGAN INDUSTRI RUMAH TANGGA DI SUMATERA BARAT DENGAN SUMBER ENERGI BATEREI 60 A/12 V Asfarizal Saad; Nurzal
Jurnal Teknik Mesin Vol 4 No 2 (2014): Jurnal Teknik Mesin Vol.4 No.2 October 2014
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2014.v4.i2.43-48

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.
CHROME PLATING TO INCREASE THE ADDED VALUE OF HOME INDUSTRY METAL PRODUCTS IN WEST SUMATERA Asfarizal Saad; Nurzal; Azwir Premadi
Jurnal Teknik Mesin Vol 3 No 2 (2013): Jurnal Teknik Mesin Vol.3 No.2 October 2013
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2013.v3.i2.55-59

Abstract

Electroplating by using direct current (DC) electrical energy can be obtained with a rectifier or battery. The using of electric chrome plating forms hard surfaces, high aesthetic value, corrosion resistant, wear resistant, and much in demand by the public. In West Sumatra, most of home industry products of metal creation (steel, copper, brass) are not plated yet with chrome, so that, they become less attractive. Adding the electric chrome plating to the metal products is then expected to increase the value of those products. It is essential to electroplating copper (Cu) and nickel (Ni) first before chrome (Cr). It is to improve the adesivitas and brighten the metal. The system solution used are copper sulfate (CuSO4) i = 6.68 A/dm2 , t = 2 min; nickel sulfate (NiSO4) i = 3.5 A/dm2 , t= 2 min; and chrome acid (CrO3) i= 5.1 A/dm2 , t= 20 min. Energy source is a 12 volt battery 60 amperes. The result showed that: a) Throwing Power solution tends to decrease after the first and second plating; b) the average of layer thickness Cu: 8.54 µm, Ni: 6.65 µm, and Cr: 3.23 µm; c) good adesivitas in which there’s no cracks even in 90o and 180o bending.
Co-Authors Aguswendho Aguswendho Aguswendho Anwar Kasim Aswir Premadi Azwir Premadi Dadang Eka Juanda G Gunawarman, G Nurzal, Nurzal Santosa Santosa