塑料件的未注形位执行什么公差标准?

2024-12-21 20:28:32
推荐回答(3个)
回答1:

  工程塑料模塑料件尺寸公差(GB-T14486-1993)。

  拓展介绍:

  《塑料模塑件尺寸公差》是1993年颁布的国家标准,是在原四机部制定的标准基础上制定的。
使用时,先从表2中按你所用的塑料品种选用公差等级,每种塑料按收缩率不同,可选用三个等级(高精度、一般精度、未注公差尺寸)然后在到表1中按尺寸段与精度等级查公差数值。公差的上、下偏差应根据使用要求进行分配。 如基孔制的孔取表中数值冠以(+)号,基轴制的轴取表中数值冠以(-)号,中心距尺寸取表中数值之半冠以(±)号。至于表中的AB行,是要看塑件成型时模具的情况的,一个塑件尺寸,如果由两个模具零件来成型的,选用B行数值,如是一个模具零件成型的,选用A行。

回答2:

GB-T14486 工程塑料模塑料件尺寸公差

回答3:

GB/T1184-1996K

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