问题: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
Saturday, March 30, 2024
问题:判断题塑件外表面有条花纹的手柄,手轮按钮等,必须便于条纹方向与脱模方向一致。A 对B 错...
Thursday, October 5, 2023
问题: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...
Thursday, October 5, 2023
问题:单选题(),成型收缩率大,脱模和脱模后塑件变形大,并且易造成溢料和粘模。A 模温过高B 模具温度不均匀C 模温过低D 模具温度均匀...
Thursday, January 11, 2024
Thursday, April 25, 2024
问题: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
Thursday, December 7, 2023
问题:判断题塑件上的凸字不明显,涂油漆,字迹鲜明。A 对B 错...
Thursday, April 25, 2024
Thursday, April 25, 2024
Thursday, January 11, 2024
问题: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...
Thursday, April 25, 2024
问题: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...
Saturday, March 30, 2024
问题:单选题以下四种塑料中,()耐腐蚀性最好。A 聚四氟乙烯B 聚酰胺(尼龙)C 聚氯乙烯D 聚苯乙烯...
Tuesday, October 10, 2023
Thursday, January 11, 2024
Saturday, March 30, 2024
问题:问答题斜导柱与凹模滑块的斜导柱孔之间存在较大间隙的作用?...
Thursday, October 5, 2023
问题: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
Tuesday, October 10, 2023