Analisis Kekuatan Tarik dan Tekan Cetakan Pasir akibat Variasi Ukuran Butir dan Kadar Pengikat Pasir Cetak
Abstract: Molding sand is one
the most important thing in sand casting. The weak tensile strength and
compressive strength of molding sand causes some defects, such as sand drop and
sand inclusion. Therefore this research is done by varying grain size and
percentage of binder in molding sand. The purpose of this research was to
analyze the tensile strength and the compressive strength of sand mold due to
variation of grain size and binder presentation. Each treatment will through
tensile strength test and compressive strength test, then the data from the
test will be analyzed by using ANOVAfor factorial experiments with SPSS 16.0
and a significance level of 5%. From the research and analysis conducted found
that the tensile strength of the molding sand is influenced by the grain size
and binder presentation, meanwhile the compressive strength is influenced by
the binder presentation but is not affected by the grain size. The highest
average value of the sand mold tensile strength is 0.912 N/mm2 and the highest
average value of the sand mold compressive strength is 2.7567 N/mm2. Those
values are achieved by the use of a mixture of GFN 40-50 AFS silica with a
percentage binder as much as 1.5%.
Penulis: Sella Devianty, Ahmad
Syuhri, Hari Arbiantara
Kode Jurnal: jptmesindd140515
