Patent ID: 10589345

Abstract:
A mold molding method includes a binder reaction amount calculation step of calculating a reaction amount ΔC(θ, ti) [wt %] (i=1, 2) of a binder, a specimen room temperature compressive strength calculation step of calculating room temperature compressive strength σc(θ, t) [MPa] of a specimen, a mold room temperature compressive strength prediction step of predicting room temperature compressive strength σca(θ, t) of the mold in advance, and a mold room temperature compressive strength extraction step of extracting room temperature compressive strength σce(θ, t) of the mold. When the mold is actually molded, the model is removed just after elapse of the time t1, as one of the molding condition parameters which satisfies the room temperature compressive strength σce(θ, t).