下列铸件产生偏析的原因是（　　）。 -题库考试答案搜索网

下列铸件产生偏析的原因是（　　）。

单选题

2021-07-17 21:52

A、合金过熔
B、铸道设置不当
C、包埋料与铸造合金匹配性差
D、用离心铸造方法在合金成分比重差较大时易产生
E、铸造后铸型冷却过慢

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正确答案

D

试题解析

标签：医药卫生类中级口腔医学技术(中级) 相关专业知识专业知识专业实践能力 2018年口腔医学技术中级职称考试【历年真题＋章节＋模拟试题】第1章　口腔专业技术 2018年口腔医学技术中级职称考试题库【历年真题＋章节题库＋模拟试题】第1章　口腔专业技术

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