shrink fits是啥意思啊,机械上面的术语~~~~最好给详细点解释,中文和英文都要

shrink fits是啥意思啊,机械上面的术语~~~~最好给详细点解释,中文和英文都要

1.a tolerance is the total reliable variation in the size of a part.
2.Medium running fits are intended for higher running speeds or henvy journal stress or both .
3.light drive fits are those requiting lightassembly pressures and produce more or less permanent assemblies.
4.heavy drive fits are suitable for heavier steel parts or for shrink fits in middle sections.
5.two methods of designayting limit dimensions are considered as standard.one method is the maximum material method in which the large dimensions is placed above the smaller dimension for male parts,and the reverse is true for female parts.this method is well suited for small lot quantities because it is likely that the nachinist himself may check the dimensions of the parts .in so doing,he will be verifying initially the larger dimension of the male part and the smaller dimension of the female part.the other method is the maximum number method and is preferred by production snd qualtity control departments.in this method of designating adimension,the larger number is always placed above the smaller number ,regardless of whether the part is male or female.
1 .公差是零件尺寸的总允许的偏差；
2.中合座滑动配合使用于高速转动,或大负载的轴向止推转动,或两者；
3.轻合座驱动紧固配合是要求轻轻的压力就能装配,或多或少永久性装配（的机构上）；
4.重合座驱动紧固配配合适用于,较重的（固定）钢铁零件,或在中段热套（过盈）配合；
5.作为标准考虑的选定极限尺寸的两种方法：一是最大材料法,其中轴零件（即,基轴制-译注）取大尺寸优先于取小尺寸；而对孔零件（即,基孔制-译注）正相反；此法最适于小批生产,因为似乎是技师自己可检查该俩零件的尺寸,这样做时,他将先确定零件轴的上限尺寸,和零件孔的最小尺寸.另一方法是最大（公差）数值法；该法是生产和质量控制部门最喜欢的方法.这个方法,在优选尺寸时,公差上限总是优先于下限,无论是轴,或是孔.