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      •   UMY Repository
      • 03. DISSERTATIONS AND THESIS
      • Students
      • Undergraduate Thesis
      • Faculty of Engineering
      • Department of Mechanical Engineering
      • View Item
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      PENGARUH VARIASI JARAK THROWING ANODA DAN KATODA PADA PROSES ELECTROPLATING RING PLATE

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      Date
      2019-10-18
      Author
      RIDHANI, MUHAMMAD IQBAL
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      Abstract
      Electroplating is the process of coating a metal surface using an electrolyte liquid delivery medium by providing electricity to the media. This study aims to determine the effect of the throwing distance between the anode and cathode on the ring plate electroplating process on physical appearance (decorative), coating thickness and corrosion resistance. In this activity the electroplating process uses variations in the distance between the anode and cathode by 15 cm, 17.5 cm and 20 cm. The electroplating process is carried out using two metal coatings namely nickel and chrome. The nickel electroplating process is carried out using a current of 8 Amperes and a voltage of 2.3 Volts with a time of 30 minutes, while the chrome electroplating is carried out with a current of 25 Amperes and a voltage of 6.9 Volts with a time of 30 seconds. The results showed that in each segment the highest value of layer thickness was at the anode-cathode distance of 17.5 cm and the lowest value was at the anodecathode distance of 20 cm. At the throwing distance of the anode and cathode at a distance of 15 cm, the thickness decreases because the chrome ions attached to the surface of the specimen have saturated properties, so that it can damage the bonding specimen layer which results in damaging physical appearance, decreased thickness and corrosion resistance of the specimen surface. Corrosion resistance that occurs in the ring plate with an anode-cathode throwing distance variation of 17.5 cm and 20 cm has the same corrosion resistance that is equal to 2% of the two variations
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      http://repository.umy.ac.id/handle/123456789/30316
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