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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.:

US 10946552 B1

PDFFull Text
Date of Patent:
Mar. 16, 2021

Filed:

Apr. 06, 2018

Evaluation method for clay and manufacturing method of extrusion molded body

Applicant:

Denso Corporation, Kariya, JP;

Inventor:

Naohiro Hayashi, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:

Nixon & Vanderhye P.C.

Primary Examiner:

Xiao S Zhao

Assistant Examiner:

Ninh V Le

Int. Cl.
CPC ...
B28C 1/16 (2006.01); B28C 5/42 (2006.01); B28C 1/22 (2006.01); F01N 3/035 (2006.01); C04B 38/00 (2006.01); G01N 33/38 (2006.01); F01N 3/022 (2006.01); B01D 46/24 (2006.01); B28B 17/00 (2006.01); C04B 35/195 (2006.01); C04B 111/00 (2006.01); C04B 111/40 (2006.01); G01N 11/00 (2006.01);
U.S. Cl.
CPC ...
B28C 5/4258 (2013.01); B01D 46/2474 (2013.01); B28B 17/0072 (2013.01); B28C 1/16 (2013.01); B28C 1/227 (2013.01); B28C 5/4286 (2013.01); C04B 35/195 (2013.01); C04B 38/0006 (2013.01); C04B 38/0009 (2013.01); F01N 3/0222 (2013.01); F01N 3/035 (2013.01); G01N 33/383 (2013.01); B01D 2046/2496 (2013.01); B01D 2279/30 (2013.01); C04B 2111/0081 (2013.01); C04B 2111/40 (2013.01); C04B 2235/60 (2013.01); C04B 2235/6021 (2013.01); C04B 2235/61 (2013.01); F01N 2330/04 (2013.01); G01N 2011/0053 (2013.01);
Abstract

A method performs evaluation of properties of a clay rod, with which a honeycomb structural body is produced. The method mixes raw materials to produce a clay, and extrudes the clay and compresses the extruded clay to produce a clay rod. The method performs NMR to detect at least one of a T1 relaxation time and a T2 relaxation time in each of a normal part and an abnormality part extracted from the clay rod. Each of the T1 relaxation time and the T2 relaxation time corresponds to a relaxation time of nuclear spins of water protons magnetically excited in each of the normal part and the abnormality part. The method performs the evaluation of uniformity of a mixed state and a compression state of the clay rod based on a difference in T1 relaxation time and T2 relaxation time between the normal part and the abnormality part.

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