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INDONESIA
Mechanova
Published by Universitas Kristen Petra Surabaya
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
Mechanical Engineering
Arjuna Subject : -
Articles 3 Documents
 1 
Search results for , issue " Vol 6 (2017): Semester genap 2017-2018" : 3 Documents clear
The Influence of Flux Types and Cuts Dimension of Aluminum Recycling Cans Kristoforus, Alexander; Anggono, Juliana; Risonarta, Victor Yuardi
Mechanova Vol 6 (2017): Semester genap 2017-2018
Publisher : Petra Christian University

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Abstract

The consumption of drink cans worldwide reaches 6700 cans every second. Recycling of beverage cans is done to overcome the amount of garbage cans. There are two problems that arise in the process of recycling cans, namely the number of slag produced and the presence of a number of aluminum trapped in the slag. Both of these lead to low amount of product (yield recycling) and aluminum obtained (aluminum yield). In the previous study reported recycled yields for canned bodies of 59.5%, while for can cover 57.5%.In this study, the yield of recycled and aluminum yields were attempted to be increased by reducing the size of the can and using 2 drossing flux and 1 cover flux. In the cans body increased by 1.8-2.2% from 51,4% to 53,6%, while for cans lid increased by 1.1-2.2% from 66,4% to 68,6% by using different flux types. Reducing the cut dimension of the aluminium can, increase the yield of recycling by 2.9% from 51,4% to 54,3% for cans body and for canned lids increase by 4,3% from 66,4% to 70,7%.
The Effect of Smelting Temperature and Quantity of Flux on Aluminum Recovery Yield Sumarsono, Randy Pratama; Anggono, Juliana; Risonarta, Victor
Mechanova Vol 6 (2017): Semester genap 2017-2018
Publisher : Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (263.828 KB)

Abstract

Aluminum cans are widely used as food and beverage containers because of their properties. In practice, the consumption of canned drinks in the world and those recycled is not comparable. There are many challenges in recycling aluminum cans, one of which is the low yield of aluminum due to the formation of slag.From a literature study, it is known that the smelting temperature and the flux weight that added to the aluminium melt have an effect on the aluminum yield.Therefore in this research was conducted to smelt with 3 temperature variations were 720 oC, 740 oC and 760 oC and 3 flux weight variations were 0.5%; 0.75% and 1% based on weight of the aluminium can. The result show that experiment with melting temperature 760 oC and with weight flux of 1 % given highest recovery yield of 88.18% (388 grams).
The influence of iron (Fe) Content Elements on Mechanical Properties of Aluminum-Silicon Alloy Wheels A356 for Car Rims Aditya, Geraldi Raka
Mechanova Vol 6 (2017): Semester genap 2017-2018
Publisher : Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (623.698 KB)

Abstract

Aluminum-silicon alloy A356 is material for the manufacture of rims. Rims are important components for the vehicle, so it must be strong enough to withstand the vertical load, the side load and the braking force. In the process of casting in car rims factories usually occurs error, such as the inclusion of the bolts that will lead to increased content of Fe. High level of Fe can lower the toughness and the ductility properties. This study aims to get the value of the mechanical properties (impact strength and tensile strength) of Al-Si alloy A356 as the effect of variations in the levels of Fe (0.12 wt%; 0.16% by weight; 0.20% by weight) and to study the relationship between the microstructure and the mechanical properties.From the experiments, it is known that increased levels of Fe cause a decline in the value of elongation, yield strength and ultimate tensile strength. In addition, with the increase of Fe content obtained, impact values also fell. This occurs due to the presence of porosity in the casting result which causes the wheels become brittle. In addition, the decreasing value of UTS is due to enlargement of the grain size and the size of the dendrites observed through the test micro-structure.

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