The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 17, 2020

Filed:

Sep. 01, 2017
Applicant:

Kobe Steel, Ltd., Hyogo, JP;

Inventors:

Yusaku Takagawa, Hyogo, JP;

Kazuyuki Tsutsumi, Hyogo, JP;

Assignee:

Kobe Steel, Ltd., Hyogo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C 1/22 (2006.01); B22C 9/02 (2006.01); B22C 9/00 (2006.01);
U.S. Cl.
CPC ...
B22C 1/22 (2013.01); B22C 9/00 (2013.01); B22C 9/02 (2013.01);
Abstract

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


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