Evaluation method for clay and manufacturing method of extrusion molded body
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United States of America Patent
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Mar 16, 2021
Grant Date -
Oct 25, 2018
app pub date -
Apr 6, 2018
filing date -
Apr 19, 2017
priority date (Note) -
In Force
status (Latency Note)
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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.
First Claim
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International Classification(s)
- C04B:LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREO....
- B28B:SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG O....
- B28C:PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY....
- F01N:GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHIN....
- G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
- B01D:SEPARATION
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