铸铁的铸造工艺性比铸钢的要好，其主要原因是( )。 -题库考试答案搜索网

铸铁的铸造工艺性比铸钢的要好，其主要原因是( )。

单选题

2021-07-17 23:26

A、铸铁的浇注温度高，凝固温度范围小，收缩率大
B、铸铁的浇注温度低，凝固温度范围小，收缩率小
C、铸铁的浇注温度低，凝固温度范围大，收缩率小
D、铸铁的浇注温度高，凝固温度范围大，收缩率大

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正确答案

B

试题解析

标签：机械制造与自动化高起专机械制造基础 2019级第三学期期末考试

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