ʻO ka mīkini servo i loko o ka ʻōnaehana hydraulic he pololei loa (ʻo ka hoʻomaʻemaʻe maʻamau ʻo 3μm), kahi maʻalahi e kāohi ʻia e nā ʻāpana i loko o ka ʻaila, e alakaʻi ana i ka hemahema o ka mana.ʻO nā'āpana o kaʻaila lubricating e hoʻonui i kaʻaʻahu o nā sila i loko o ka pūnaewele, a laila e ho'ēmi i ka hilinaʻi a me ke ola lawelawe o nā mea hana.No laila, pono e ana i ka maʻemaʻe o nā huahana aila ma ke ala pololei, i kapa ʻia ʻo "cleanliness".
I kēia manawa, hoʻohana nui ʻia ka ISO 4406 a me NAS 1638 e hōʻike i ka maʻemaʻe o ka aila.Aia kekahi pilina ma waena o nā kūlana ʻelua.Ua hoʻohana like ʻo Kina i ka maʻamau ISO 4406-1999, i hoʻokumu ʻia i ka "hydraulic transmission oil solid particle pollution level code" GB / T 14039-2002 national standard.
ʻO ka maʻamau ISO 4406-1999 ka mea e hoʻoholo ai i ka helu o nā ʻāpana> 4μm,> 6μm,> 14μm i ka 100ml o ka aila, Ua hoʻopaʻa ʻia ka maʻamau maʻemaʻe ISO 4406 e ka International Organization for Standardization ma 1991 no ka pili ʻana i nā code pollution grade (maʻemaʻe) .
Ua koho ʻia ʻo ISO 4406 no 5μm, 15μm i kēia mau nui ʻelua, no ka mea, ua hōʻike ʻia nā haʻawina e hōʻeha nui nā ʻāpana 5μm, a ʻo nā ʻāpana 15μm e hoʻopili ai i nā ʻāpana hydraulic, no laila hiki i kēia mau nui ʻelua ke hōʻike i ka lole o ka aila, nā kūlana paʻa.
Pehea e hoʻololi ai i ka hoʻomaʻemaʻe ʻaila hydraulic ma lalo o nā kūlana like ʻole?Hōʻike ka papa ma lalo i ke ʻano hoʻololi ma waena o ka papa hoʻomaʻemaʻe ISO4406 a me nā kūlana like ʻole.
ʻO nā papa ma kēia alakaʻi e ʻae i nā mea hoʻohana i ka hoʻohana ʻana i nā helu kikoʻī lawe lima e ʻike i kaka pilina ma waena o nā helu ʻāpana maka ma nā nui like ʻole a me nā helu helu hōʻike onā kūlana hoʻohaumia like ʻole.
E hoʻomanaʻo, ua wehewehe ʻia kekahi o nā helu papaʻaina ma ke ʻano he helu kumulative (e laʻa, "> 6µm") aua wehewehe ʻia nā helu ʻokoʻa (e laʻa, 6–14µm”).
ʻO nā hiʻohiʻona o ka nui o nā ʻāpana i hāʻawi ʻia ma ke ʻano he "µm" e pili ana i ka ACFTD (ʻo ia ka Air Cleaner Fine Test Dust)mahele.ʻO nā hiʻohiʻona o ka nui o nā ʻāpana i hāʻawi ʻia e like me "µm(c)" e pili ana i ka MTD (ie ISO Medium TestPuehu) mahele.
Aia nā kūlana a pau i nā helu no kēlā me kēia leo, a hāʻawi i nā ala maʻalahi no ka hoʻololi ʻana i ka ʻāpanahelu ʻia i nā palena i maʻalahi ke wehewehe.Ma ka ʻike ʻana i nā koi o ka maʻamau,
hiki ke hoʻololi pololei ʻia nā helu ʻāpana i nā pae haumia.
NAS1638
Ua hoʻomohala ʻia ka maʻamau maʻemaʻe NAS 1638 no nā ʻāpana aerospace ma US ahoʻohana nui ʻia no ka ʻenehana a me ka aerospace fluid mana noi.
He helu ʻokoʻa nā helu, a hōʻike pinepine ʻia ka papa NAS ma ke ʻano he helu hoʻokahie hōʻike ana i ka helu ʻokoʻa i ʻae ʻia (ʻo ia hoʻi ka hihia ʻino loa) no ka ʻāpana i koho ʻianā laulā nui.
Ka manawa hoʻouna: ʻAukake-18-2022