The selection of chemical composition of ferrite nodular iron used under low temperature, the control plan of nodularization, inoculation technology and heat treatment technique were studied.
研究了低温用铁素体球铁化学成分的选择、球化及孕育工艺的控制以及热处理方案的制定原则，从而确定了低温用铁素体球铁的合理生产方案。
Experiments show that the algorithm proposed in this paper sometimes only takes a litde more time than that without selection policy to select the best composition plan.
实验证明，算法虽然比不使用选择策略的算法花销时间稍多，但它能选出最佳的合成方案。
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