A: wrong position of TL. B: Correct position ( Should be應為 FC270 rather than而非 FC301). C: slope of cooling curve before TL is very steep. D: slope of cooling curve after TL is much gentler than C. From the slope of cooling curve, you should be able to tell which stage of solidification a curve segment represents. 從曲線斜率 要能夠判斷凝固進行是到C, D哪個階段 才算師傅. 有時電腦會研判錯誤, 抓錯初晶或共晶點, 此時人為判定需介入. Human judgement should get in when computer fails to determine TL, TE correctly.
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