Kikin, Hermanto (2015) Pengaruh pencampuran konsentrasi H2CrO4 dan gelatin dalam elektrolit gel terhadap ketebalan dan kekuatan lekat lapisan krom pada baja dengan metode elektroplating. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Elektroplating pada dunia industri banyak dimanfaatkan
untuk melakukan pelapisan terhadap benda kerja dengan cara
pencelupan benda kerja dalam larutan elektrolit. Cara ini dirasa
kurang efektif bila digunakan pada benda kerja yang telah
terpasang pada rangkaian kerjanya, sehingga penelitian tentang
elektrolit gel ini dilakukan.
Penelitian ini menggunakan metode alternatif
elektroplating, yaitu elektrolit gel. Elektrolit gel merupakan
metode elektroplating tanpa perlu melakukan pencelupan,
penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi
H2CrO4 (250 g/l; 300 g/l; 350 g/l) dan gelatin sebagai gelling
agent (40,5 g/l; 81 g/l; 121,5 g/l) dalam elektrolit gel H2CrO4
terhadap ketebalan dan kekuatan lekat lapisan krom hasil
elektroplating pada baja.
Hasil penelitian menunjukkan bahwa semakin besar
konsentrasi asam kromat dalam elektrolit gel akan meningkatkan
ketebalan deposit krom sedangkan penambahan konsentrasi
gelatin akan menurunkan ketebalan deposit krom. Penambahan
konsentrasi asam kromat akan menurunkan nilai kelekatan
deposit krom pada spesimen, sedangkan penambahan konsentrasi
gelatin akan mencapai nilai kelekatan maksimalnya pada
konsentrasi 81 g/l dan penambahan konsentrasi gelatin melebihi konsentrasi tersebut akan menyebabkan penurunan nilai kelekatan.
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Electroplating in industrial world is being used to
perform the coating of the work piece by means of immersion of
the work piece in the electrolyte solution. This method is less
effective when used on a work piece that has been mounted on
a series of works, so the research about gel electrolyte is done.
This study uses an alternative method of electroplating
using gel electrolyte without dyeing methods, this study aims to
determine the effects of concentration of H2CrO4 (250 g/l; 300
g/l; 350 g/l) and gelatin as a gelling agent (40,5 g/l; 81 g/l;
121,5 g/l) in the gel electrolyte H2CrO4 to the thickness and
adhesivity of the results of chrome electroplating coating on
steel.
The results showed that the greater the concentration of
chromic acid in the gel electrolyte will increase the thickness of
chrome deposits, while the addition of gelatin concentration will
decrease the thickness of chrome deposits. The addition of
chromic acid concentration will decrease the value of the
chrome deposit adhesiveness on the specimen, while the
addition of gelatin concentration will reach its maximum
adhesive value at concentrations of 81 g/l and the addition of
gelatin concentration exceeds the concentration will lead to a
decrease in the adhesive value
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSMt 671.732 Her p |
| Uncontrolled Keywords: | Elektrolit Gel; Elektroplating; Gelatin; H2CrO4; Konsentrasi |
| Subjects: | T Technology > TN Mining engineering. Metallurgy > TN690 Metallography. Physical metallurgy |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | - Taufiq Rahmanu |
| Date Deposited: | 18 Oct 2018 03:52 |
| Last Modified: | 18 Oct 2018 03:52 |
| URI: | http://repository.its.ac.id/id/eprint/59896 |
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