《Table 3:Tolerances (wt.%) for trace elements suggested by Gundlach of Element Materials Technology
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《Selection of raw materials and control of trace elements for production of high-quality SG iron》
Gundlach suggested that when K1<1.0,spheroidal graphite is possible;when K1>1.0,degenerate graphite is likely to be formed,and rare earth additions are required to neutralize the effect of deleterious trace elements[13].Tables 1 to 5 show the final maximum content of trace elements in SG iron according to the literature.Table 1 shows only the maximum levels of Sb,As and Pb,by D.S.White of Elkem[11].It can be seen that the maximum levels of these elements have decreased significantly during a period of 40 years.
图表编号 | XD0049760200 严禁用于非法目的 |
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绘制时间 | 2019.03.01 |
作者 | Jia-xin Bai |
绘制单位 | China University of Geoscience Beijing |
更多格式 | 高清、无水印(增值服务) |