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Application filed by Dragon Steel CorpfiledCriticalDragon Steel Corp
Priority to TW99118540ApriorityCriticalpatent/TW201144788A/en
Publication of TW201144788ApublicationCriticalpatent/TW201144788A/en
A refractory material internal defect inspection method involves the following steps: (A) to obtain a dominant frequency of bottom face reflected wave of an internal defect-free refractory material, (B) hitting a refractory material under test, a reflected wave of the refractory material under test is converted into a spectrum signal under analysis, (C) in the spectrum signal under analysis, to identify the frequency under analysis as the one that a frequency higher than the dominant frequency and the largest amplitude, and a reference amplitude at the dominant frequency of the spectrum signal under analysis, if amplitude of the frequency under analysis is higher than the reference amplitude, then it indicates that the refractory material has internal defects.
TW99118540A2010-06-082010-06-08Refractory material internal defect inspection method
TW201144788A
(en)