Thursday, April 25, 2024
Thursday, January 11, 2024
Tuesday, May 14, 2024
Tuesday, May 14, 2024
Saturday, March 30, 2024
单选题注射模合模导向机构中的导柱与导套采用配合形式为()。A 过盈配合B 间隙配合C 过渡配合D 自由公差...
Tuesday, May 14, 2024
单选题通用塑料中,()具有阻燃性。A 聚乙烯B 聚丙烯C 聚氯乙烯D 聚苯乙烯...
Tuesday, May 14, 2024
Saturday, March 30, 2024
判断题塑件上固定孔和其他受力孔周围设计凸边来加强。A 对B 错...
Tuesday, May 14, 2024
Thursday, January 11, 2024
单选题()安装在注射机固定模板模具。A 定模B 成型零件C 动模D 模具...
Tuesday, May 14, 2024
单选题在下列成型方法中,热固性塑料不可以采用的为()。A 压注成型B 注射成型C 压缩成型D 以上均可...
Tuesday, March 7, 2023
Thursday, January 11, 2024
判断题设计塑件时,孔与孔、孔与壁之间应留有足够的距离。A 对B 错...
Tuesday, October 10, 2023
判断题挤出成型分材料塑化、注射、制品成型、冷却定型四个过程。A 对B 错...
Thursday, September 29, 2022
判断题塑件上的凹字制模方便,塑件上凸字易碰坏。A 对B 错...
Thursday, December 7, 2023
Tuesday, May 14, 2024
判断题设计塑件时,孔与孔、孔与壁之间应留有足够的距离。A 对B 错...
Tuesday, October 10, 2023
判断题注射成型加工时,粘流态Tf-Td区间愈宽,塑料愈容易成型加工。A 对B 错...
Thursday, October 5, 2023