Pengaruh Variasi Dimensi Scrap Alumunium pada Hasil Coran terhadap Kekerasan dengan Cetakan Pasir Merah

Iswanto, Yongki and , Agus Yulianto, ST, MT (2019) Pengaruh Variasi Dimensi Scrap Alumunium pada Hasil Coran terhadap Kekerasan dengan Cetakan Pasir Merah. Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

This study attempts to study the dimensions of the Al-Pb memo on the results of aluminum (recycled) castings on defense with red sand mold.This study uses used aluminum or rosok material which is smelted again using a crucible furnace. Variations in the size of aluminum dimensions 5 x 5 x 1 cm³ and 7.5 x 7.5 x 1 cm³ using lead by 20%. The casting process is the first time to make red sand mold and core pattern, after that ignition then Al melting process with additional lead (Pb) 20%. Then the smelting is removed from the crucible and then poured into red sand mold. Then the filling has hardened and repaired the mold being unloaded to get the results of the aluminum castings (Al-Pb). Analysis of the data from the results of testing the chemical composition there are 2 dominant (Al) 85.05% dimensions of 5 x 5 x 1 cm³ and (Si) 7.0889 in the case of 7.5 x 7.5 x 1 cm³ resulting from not in this material including aluminum alloy silicon (Al-Si). From the results of the Brinell hardness test obtained for dimensions 7.5 x 7.5 x 1 cm³ variation reached 85.551 BHN higher than the 5 x 5 x 1 cm³ dimension variation of 82.257 BHN. Keywords: Lead black, aluminum, red sand mold

Item Type:	Karya ilmiah (Skripsi)
Uncontrolled Keywords:	Keywords: Lead black, aluminum, red sand mold
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Fakultas Teknik > Teknik Mesin
Depositing User:	YONGKI ISWANTO
Date Deposited:	15 Mar 2019 07:42
Last Modified:	15 Mar 2019 07:42
URI:	http://eprints.ums.ac.id/id/eprint/71755

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