Removal of non-metallic inclusion by ceramic filter.
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概要
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The actual continuous casting test has been made for the production of austenitic stainless steel by the use of porous-type ceramic filter, which is different from conventional lattice-type ceramic filter.The ceramic filter has the porous structure and is produced by a special method. Removal mechanism of non-metallic inclusions is considered to be caused by filtering action of the ceramic filter for lame size inclusions and by adsorption action for fine inclusions. The tundish having a gate with 4 ceramic filters was used for the test. Casting was done by the use of two strands, of which one strand was equipped with ceramic filters and another was without filter.The content of non-metallic inclusion was determined by the examination of the samples collected from the above two strands at the same casting time. The results obtained by the test are summarized as follows:(1) The ceramic filter can be used in the actual continuous casting operation satisfactorily.(2) Cleanliness of continuous casting product is improved by the use of ceramic filter.(3) Non-metallic inclusions adsorbed on the ceramic filter are composed of Al2MgO4 spinel, Al, Ca, Si, Mn oxides, etc.
- The Iron and Steel Institute of Japanの論文
The Iron and Steel Institute of Japan | 論文
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