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CARBON MATERIAL FOR HEARTH ROLL, HEARTH ROLL, AND METHOD FOR USING HEARTH ROLL
CARBON MATERIAL FOR HEARTH ROLL, HEARTH ROLL, AND METHOD FOR USING HEARTH ROLL
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机译：用于高炉辊的碳材料，高炉辊和使用高炉辊的方法
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摘要
Forming and sintering a carbon material and the graphitization treatment is performed, the maximum diameter of the pores below 0.2㎜ present in the carbon material and the bulk specific gravity of 1.55 ~ 2.00g / ㎤, the graphitization degree of 0.5 or more, the hardness (Hs) 40 or more, to less than 70, and thereby also remarkably improved within the pickup properties by the Fe as the unavoidable impurities in the carbon material for the transfer roller hearth to a 0.010% by mass or less, an alkali metal element to 0.010% by mass or less. ; Hearth roll.
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