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:
Oct. 16, 2018
Filed:
Oct. 21, 2015
Kobe Steel, Ltd., Hyogo, JP;
Kazuyuki Tsutsumi, Kobe, JP;
Kobe Steel, Ltd., Hyogo, JP;
Abstract
In the following expression, it is assumed that a thickness of a coating agent applied to a foam pattern [] is t (mm), a diameter of a hole part [] is D (mm), and a normal-temperature transverse strength of the dried coating agent is σc (MPa). At the time of producing a casting provided with a hole having a diameter of 18 mm or smaller and a length of 1 (mm), a coating agent that satisfies the following expression is used when a solidification end time te (sec) at which solidification of a melt ends on a periphery of the hole part [] is within a time t(sec) at which thermal decomposition of the coating agent ends.σ0/(0−)}×(1.5×10×1+160/)