科技广场
科技廣場
과기엄장
SCIENCE TECHNOLOGY PLAZA
2014年
11期
64-66
,共3页
变质%计算机%凝固曲线%ZL105A合金
變質%計算機%凝固麯線%ZL105A閤金
변질%계산궤%응고곡선%ZL105A합금
Modification%Computer%Freezing Curve%ZL105A Alloy
为了快速检测ZL105A合金变质效果，本文设计了计算机检测系统，主要包括K型热电偶、测试样杯、放大电路、数模转换（A/D）和计算机。结果表明：应用该系统得到了与ZL105A合金变质效果有明确数量关系的凝固曲线；初晶拐点是变质效果的判据，良好变质比未变质的初晶拐点可提前在15s以上出现；计算机的检测结果与合金的断口形貌和金相组织一致。
為瞭快速檢測ZL105A閤金變質效果，本文設計瞭計算機檢測繫統，主要包括K型熱電偶、測試樣杯、放大電路、數模轉換（A/D）和計算機。結果錶明：應用該繫統得到瞭與ZL105A閤金變質效果有明確數量關繫的凝固麯線；初晶枴點是變質效果的判據，良好變質比未變質的初晶枴點可提前在15s以上齣現；計算機的檢測結果與閤金的斷口形貌和金相組織一緻。
위료쾌속검측ZL105A합금변질효과，본문설계료계산궤검측계통，주요포괄K형열전우、측시양배、방대전로、수모전환（A/D）화계산궤。결과표명：응용해계통득도료여ZL105A합금변질효과유명학수량관계적응고곡선；초정괴점시변질효과적판거，량호변질비미변질적초정괴점가제전재15s이상출현；계산궤적검측결과여합금적단구형모화금상조직일치。
In order to quickly detect the modification effect of ZL105A alloy, this paper designs a computer detection system which mainly includes K-thermocouple, testing sample cup, amplifier circuit, digital-to-analog (A/D) card and computer. Results show that with the system, we get the freezing curve which has a clear relation-ship with the modification effect of ZL105A alloy. The inflection point of primary crystal is the criterion of modifi-cation effect. The inflection point of primary crystal with good deterioration can appear earlier in more than 15s than the inflection point of primary crystal without modification. The result from computer is the same as the frac-ture morphology and microstructure of the alloy.
