RT Journal Article
SR Electronic
A1 Conev, Martin
A1 Vasková, Iveta
A1 Hrubovčáková, Martina
T1 The Influence of Mould Strength on Shrinkage Production for Castings with Different Wall Thickness for Material EN-GJS-400-18LT
JF Manufacturing Technology Journal
YR 2017
VO 17
IS 1
SP 14
OP 18
DO 10.21062/ujep/x.2017/a/1213-2489/MT/17/1/14
UL https://journalmt.com/artkey/mft-201701-0003.php
AB This paper is dealing with the influence of mould strength on a shrinkage production for ductile iron castings. According to pressures that impact a mould cavity the strength of mould is an important parameter by ductile iron pouring. During the solidification of cast iron a non-metallic particle - graphite is released. Depending on graphite amount released in the liquid and in the solidified skin of casting the tendency to shrinking is varying. In the experiment a furan sand mixture is used. The experiment compares a size of the created shrinkage in the castings with different wall thickness poured into a moulds with different strength. For the occurrence of shrinkage and its size evaluation a non-destructive ultrasonic reflecting method was used.