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.
Patent No.:
Date of Patent:
Sep. 08, 2020
Filed:
Jan. 26, 2017
Kobe Steel, Ltd., Hyogo, JP;
Eisuke Kurosawa, Hyogo, JP;
Kazuyuki Tsutsumi, Hyogo, JP;
KOBE STEEL, LTD., Hyogo, JP;
Abstract
A mold wash is used in a casting method using a lost foam to make a casting having a hole with a diameter of 12 mm or less. The casting method includes determining a thermal decomposition amount ΔC(θ,t) [wt %] of a resin binder when the mold wash is exposed at a temperature θ [° C.] for a time t [sec], and determining a room temperature transverse rupture strength σ(θ,t) [MPa] of the mold wash after receiving thermal loads, and performing casting with the mold wash having the room temperature transverse rupture strength σ(θ,t) after receiving thermal loads being equal to or larger than a threshold value σ[MPa].