| Title |
On the Change of expansion force during Solidification in the spheroidal graphite cast iron |
| Authors |
김수영(Soon Young Kim); 박윤우 (Yoon Woo Park) |
| Abstract |
The formation of shrinkage cavities during solidification is a serious defect in the spheroidal graphite cast iron castings. It is considered that the shrinkage cavities are formed as a result of the expansion force of spheroidal graphite cast iron during solidification, and the force was measured. The results obtained through this experiment are as follows: 1. The highest force during the solidification in the spheroidal graphite cast iron is 36-37kgw (X component of the force) 2. The force increasing gradient df/dt, in the spheroidal graphite cast iron of hyper eutectic composition is 167gw/sec. when eutectic reaction es occres |