Effect of Surface Condition on Melt-Out of Die-Casting Mould
In order to understand the melt-out mechanism of H13 die casting mould material, microstructural investigation was conducted for the immersion-tested surface in Al-alloy melt. The surface condition of H13 tool steel was modified by varying nitriding conditions and by surface blasting. In particular, long-term behavior of melt-out phenomena during immersion testing of up to 43 hours was focused in this article. It was observed that an ion-nitrided H13 surface showed higher resistance towards melt-out than a gas-nitrided or blasted surface. This was related to the surface layers that are normally formed by nitriding.
Jang Hyun Sung, Chan Gyu Lee, Yong Zoo You, Young Kook Lee and Jae Young Kim
K. T. Youn et al., "Effect of Surface Condition on Melt-Out of Die-Casting Mould", Solid State Phenomena, Vol. 118, pp. 509-514, 2006