Abstract
X-ray computed tomographic scanner (CTS) recently reported for iron and steel analysis by one of the present authors, has been applied in this paper to raw materials for iron and steel, especially iron ore sinter, in a series of study on application of computed tomographic scanner to non-medical purposes.
High-voltage X-ray tube (max 420 kV, 3 mA) with an iron filter of 7 mm thickness was studied and used for high quality of tomographic images. Raw materials showed higher X-ray transmission than iron and steel and the total measuring time was shortened to 6 min. (data acquisition: 5 min, data processing: 1 min, total measuring time of iron and steel: 11 min)
The images of iron ore sinter, taken by CTS were found to be well agreed with those observed by an optical microscope after cutting and polishing the sinter.
Using the mini-computer and the displayer of CMA (Computer aidded Micro Analyzer), CTS data of the sinter were furthermore processed in order to obtain the quantitative information of pores and residual iron ores.
It is concluded that CTS is a new apparatus suitable to analyze raw materiales for iron and steel.
