STUDI KASUS PENGARUH KADAR AIR PASIR CETAK TERHADAP CACAT PERMUKAAN HASIL CORAN BESI COR ( DI CV. SUDIRMAN BATUR CEPER KLATEN JATENG )

SATYA WIDITA, ADHIKA (2019) STUDI KASUS PENGARUH KADAR AIR PASIR CETAK TERHADAP CACAT PERMUKAAN HASIL CORAN BESI COR ( DI CV. SUDIRMAN BATUR CEPER KLATEN JATENG ). Skripsi thesis, Institut Teknologi Dirgantara Adisutjipto.

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Abstract

The purpose of this study was to identify the effects of water content on sand mold on the results of pipe clamp castings, casting defects by dye penetrant method, and factors that affect cast yield. The study was conducted at CV. Sudirman Batur Ceper Klaten, Central Java. Moisture content testing was conducted at the Manufacturing Polytechnic Laboratory, Ceper, Klaten. The research method used in this study was the dye penetration test. The independent variable in this study was the variation of water content of 3%, 4,5% and 6% in printed sand. The results of this study were mixture of 3% water had few defects and the surface of the castings did not have many pores. There is not much casting sand attached to the castings. Moisture content of 4,5% and 6% had many visible defects from the color of the print with many red spots and rough surface. Water content and sand content must be balanced to get perfect results.

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