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Accession number;99A0924156
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| Title;Heat Resistance of Spark-Coated Cast Iron by Isothermal Heating for a Long Time. |
| Author;
SOUMA MAKOTO
(Hokkaidokyodai Kushiroko)
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Journal Title;Journal of Hokkaido University of Education. Natural Science
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Journal Code:L3615A
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ISSN:1344-2570
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VOL.50;NO.1;PAGE.73-80(1999)
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| Figure&Table&Reference;FIG.9, TBL.2, REF.10 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;To clarify the practically heat-resistant time in industrial use, once spark-coated (C1) and twice spark-coated (C2) cast irons were heated isothermally at 700.DEG.C. until 200h. The main results obtained were as follows. 1) At the heating time of 25h, the weight ratio of C1 was 40% compared to non-coated iron (C0) and 20% in C2. At the time of 50h, they were 70% and 50% respectively. 2) Both irons reached to the stage of severe oxidation after 50h-heating and the effect of coating seemed to disappear. 3) After 50h-heating W and Co were analyzed at the edge of C2 and even after 200h-heating, they were detected slightly. 4) The time that oxidation was controlled to about 50% compared to C0 was 25h in C1, but 50h in C2. Those figures may be useful in industrial application. (author abst.) |
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