PENGARUH REMELTING TERHADAP STRUKTUR MIKRO DAN KEKERASAN PADUAN COR Al – Si
Abstract: Remelting is a
method to recycle the product made from Al-Si cast alloy. Basically, remelting is
a casting process
which done repeatedly.
The material used
in this research was from diesel
engine pistons of a truck.The used pistons were treated by three times of
remelting, i.e. 1st, 2nd, and 3rdremelting. The piston was melted at 875oC
in the furnace, then poured into a permanent
moldhas been preheated at 260oC. Finally,
the microstructure of the specimens
were examined and
the hardness were tested.
The result of
this research indicate
that remelting process can
change the microstructure of
Al-Si cast alloy.
With three time
remelting respectively, the hardness increased.
Penulis: Eko Surojo, Teguh
Triyono, Kasminto Wahyudi
Kode Jurnal: jptmesindd090032
