SUGIYARTA, SUGIYARTA (2012) PENGARUH KUAT ARUS DAN KONSENTRASI LARUTAN ELEKTROLIT TERHADAP KETEBALAN PADA PELAPISAN NIKEL UNTUK BAJA KARBON RENDAH. Masters thesis, Program Pascasarjana Undip.
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Abstract
Elektroplating adalah proses untuk melindungi logam dari pengaruh lingkungan. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi larutan dan arus listrik terhadap ketebalan lapisan nikel. Pada penelitian ini variable bebasnya adalah arus listrik dan konsentrasi larutan. Arus listrik divariasikan 50, 55, dan 60 A. Konsentrasi larutan divariasikan menjadi 3 yaitu konsentrasi 1 (NiSO4 300gr, NiCl2 40gr, H3BO3 40gr, H2O 1000 ml), konsentrasi 2 (NiSO4 325 gr, NiCl2 45gr, H3BO3 40gr, H2O 1000 ml) dan konsentrasi 3 (NiSO4 350gr, NiCl2 50gr, H3BO3 40gr, H2O 1000ml). Spesimen berupa plat baja karbon rendah berukuran 50mm x 30mm x 1.8 mm sebanyak 27 buah. Pada konsentrasi 1, besar arus listrik tidak berpengaruh terhadap ketebalan nikel. Pada konsentrasi 2 dan 3, semakin besar arus listrik akan diperoleh hasil lapisan yang makin tebal. Semakin tinggi konsentrasi NiSO4dan NiCl2 maka lapisan nikel akan semakin tebal. Ketebalan minimum diperoleh pada konsentrasi 1 pada arus 55 A yaitu 5,06 µm dan hasil pengukuran tertinggi pada konsentrasi 3 dengan arus 60 A ketebalan 23,26 µm. Electroplating is a process to protect the metal from environtmental influences. This study aimed to determine the effect of concentration of the solution and an electric current to the thickness of the nickel coating. In this study, the independent variables are the electric current and the concentration of the solution. An electric current is varied from 50, 55, and 60 A. There were 3 solution concentrations used, i.e concentration 1 (300gr NiSO4, 40gr NiCl2, 40gr H3BO3, 100 ml H2O), concentration 2 (325gr NiSO4, 45gr NiCl2 , 40gr H3BO3, 1000 ml H2O), and the concentration 3 (350gr NiSO4 gr , 50gr NiCl2, 40gr H3BO3, 1000 ml H2O). Low carbon steel plate was used as substrate (50mm x 30mm x 1.8 mm, 27 pieces). In concentrations 1, the electrical current does not affect the thickness of a nickel. In concentration 2 and 3, the greater the electrical current, the thickness the layer. The higher the concentration of NiSO4 and NiCl2 the thicker nickel coating. The minimum thickness (5.06 μm) was obtained at concentration 1 with 55 A current and the highest one (23.26 μm) was at concentration 3 with 60 A current.
Item Type: | Thesis (Masters) |
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Subjects: | T Technology > TJ Mechanical engineering and machinery |
Divisions: | School of Postgraduate (mixed) > Master Program in Mechanical Engineering |
ID Code: | 42286 |
Deposited By: | INVALID USER |
Deposited On: | 18 Feb 2014 11:07 |
Last Modified: | 18 Feb 2014 11:07 |
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