After analyzing solidification characteristics of cast iron, a new point of view about formation mechanism of kish graphite in high carbon modified cast iron is brought out and Precautions a...
本文从分析铸铁凝固特点出发，对高碳变质铸铁中石墨漂浮的形成机理提出了新的看法，并通过工艺试验提出了防止措施。
After modification of molten iron from blast furnance, thick flake graphite becomes spherical or vermicular, thus increasing its tensile strength from about 10 kg/mm2 to 35-63 kg/mm2. However, major trouble in direct use of the melt in industry is that high carbon content (4.0-4.8%) in pig iron will cause kish graphite.
高炉铁液经变质处理后，原生铁中粗大片状石墨成为球状或蠕团状，从而使其抗拉强度由约10kg/mm~2提高至35～63kg/mm~2，但变质高炉铁液直接用于生产遇到的首要障碍是由于生铁含碳量高(4.0～4.8％)所引起的石墨漂浮缺陷。
Precautions against Kish Graphite in Modified High-carbon Cast Iron
高碳变质铸铁中石墨漂浮缺陷的防止
The BF hot metal at KISC is oversaturated with carbon and its average temperature fall reaches 1.5 ℃/min during transportation, hence, a large quantity of kish is inevitably deposited.
昆钢高炉铁水在出铁时含碳量达饱和，运输过程中平均温降为1.5℃／min，产生大量片状石墨粉尘是必然的。
A Study on the Relationship between Carbon Solubility in BF Hot Metal and Deposition of Kish
高炉铁水碳溶解度与片状石墨析出的实验研究