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系统地测量了含Si量从15～30wt％的过共晶Al-Si合金的热分析曲线。用热分析曲线的有关参数预测过共晶Al-Si合金的含Si量,其预测精度足以满足生产过程控制的需要。扼要的阐述了用热分析法预测合Si量的原理。并通过图象分析处理,解释磷变质处理对热分析法预测过共晶Al-Si合金的影响。
The thermal analysis curves of hypereutectic Al-Si alloys containing 15 ~ 30wt% Si were systematically measured. The prediction of the Si content of the hypereutectic Al-Si alloy by using the relevant parameters of the thermal analysis curve is sufficiently predictive to meet the needs of the production process control. The principle of thermal analysis for the prediction of Si content is briefly described. The effect of phosphorus modification on the prediction of hypereutectic Al-Si alloy by thermal analysis was explained by image analysis and processing.