Method for evaluating internal quality of fused cast refractories
US5363106A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1993 |
| Grant date | Nov 8, 1994 |
| Priority date | — |
| Expiry date | Mar 22, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N22/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for evaluating internal quality of fused cast refractories including the steps of: emitting electromagnetic wave pulses from sending and receiving antennas moving vertically in the vicinity of a side face of a refractory sample through the side face to an inner portion of the sample electromagnetic waves reflected by the sample via by the sending and receiving antennas, thereby obtaining crude reflected wave images; and evaluating an internal structure of the sample based on the picture of reflected wave images. By the present method, an entire inner structure of a fused cast refractory may be evaluated by emitting electromagnetic wave pulses through only by one side face toward a symmetry plane of said fused cast refractory about which the fused cast refractory is symmetrical, and receiving electromagentic waves reflected from an inner surface of the fused cast refractory sample. Therefore, due to the structural symmetry of a fused cast refractory, an internal quality of an entire inner surface of a fused cast refractory may be evaluated on the basis of crude reflected wave images corresponding to a half portion of the fused cast refractory sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.