In this paper, the effect of solidification pressure on dendrite structure and characteristics carbides in H13 die steel ingot was investigated by experimental calculational methods. Based cooling rate, a formula is proposed to calculate secondary arm spacing: λ2 = 71.45 × R−0.37. It applicable when maximum value around 2 MPa rate between 0.5 3 K/s. With increasing from 0.1 MPa, effects segrega...

X. J. Zhang, C. J. Xu (Corresponding Author), Z. Y. Wang, J. Li, L. W. Zhang, X.D. Peng. School of Materials and Metallurgy, University of Science and Technology Liaoning, China In this study, the mechanism of the formation in structure of Cold Core ingot which is prepared by cold core casting method in lab is studied. The structure of the CC ingot is obtained by optical microscopy and macrosco...

In this thesis, we address the tactical planning decision problem of ingot sizing in an aluminum sheet manufacturing facility. Ingots used for sheet manufacturing are made-to-stock, and used when necessary, to satisfy customer demands. The facility produces large ingots to exploit economies of scale in ingot casting, but customers order products frequently, and in small quantities. In this situ...

The detailed mathematical model of heat and mass transfer of steel ingot of curvilinear continuous casting machine is proposed. The process of heat and mass transfer is described by nonlinear partial differential equations of parabolic type. Position of phase boundary is determined by Stefan conditions. The temperature of cooling water in mould channel is described by a special balance equation...