Self-disintegrating slag for electroslag remelting of hollow ingot

Abstract

A new slag susceptible to self-disintegration in the solid state due to formation of dicalcium silicate (2CaOSiO 2 ) was developed. This compound reduces the thermodynamic activity of silica in a slag and, consequently, decreases silicon reduction and its transition to metal in the electroslag remelting process.

Numerical Investigation on Solidification Shrinkage Behavior of P900 Hollow Ingot during Electroslag Remelting Process

“…ESR-HI process is more significant to improve quality and performance of hollow ingots by effectively guaranteeing negligible segregation and saving in both material utilization and processing costs than the traditional processes. [3][4][5][6] Generally, the inner mould contains two sections: a cylindrical section and a conical section with taper angle θ. And they are crucial to minimize the change in inner diameter of hollow ingot caused by solidification shrinkage during ESR-HI process.…”

“…ESR‐HI process is more significant to improve quality and performance of hollow ingots by effectively guaranteeing negligible segregation and saving in both material utilization and processing costs than the traditional processes. [ 3–6 ]…”