常用的上砂方法有落砂法和埋沙法,其中埋沙法允许使用的电流密度、所用磨料的粗细和使用对象为 -题库考试答案搜索网

常用的上砂方法有落砂法和埋沙法,其中埋沙法允许使用的电流密度、所用磨料的粗细和使用对象为

单选题

2021-09-01 22:39

A、允许使用的电流密度较大;多用于细粒度磨粒上砂;比较适用于多种形状的制品
B、允许使用的电流密度较大;多用于粗粒度磨粒上砂;比较适用于多种形状的制品
C、允许较大的电流密度;多用于粗细磨粒上砂;适于小规格和圆柱形及各种复杂型面的制品
D、允许较小的电流密度;多用于粗粒磨粒上砂;适于小规格和圆柱形及各种复杂型面的制品

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正确答案

D

试题解析

标签：青书学堂河南工业大学超硬材料电镀制品

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