???????????????>2mm?_Сд???????????????????

2019-03-31

?????γ??????е?????????????????????γ??????е????????С???????????????????>2mm???????????????????γ??????е????????????

????????????

??1???????????????????????绡?????????????????21mpa?????????????5l/min?????

??2????????>2mm?????????35???????????????3mm??????????2mm?????????????????2mm?????

??3?? ?????????????????????????С?????15%???????????>2mm??б??С??1??200??

??????????????

???????????????M20-6H??M20??1.5LH-6g-40??????M ???????????????20???????????????20mm??1.5??????LH?????????6H??6g????????????????д???????????????????Сд???????????????????40???????????

??????????????????????????????????????d=D-1.0825P??????D??????????P????

Сд??????????????????

????γ??????е??????????????????????????>2mm????????????????????????????????????????????????????????????????????????и?????????

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