He aha ke ʻano paʻa o ka ʻaila?

He aha ke ʻano paʻa o ka ʻaila?

E ana i ka aila maikaʻi index a me nā ʻāpana o nā mea he nui, i kēia lā mākou e kamaʻilio / ʻoki paʻa, ʻo ia ke ʻano o ka ʻaila i nā ʻano o ke ʻano? ʻO ka moku'āina o ka lā e wehewehe pono iā ʻoe.

He aha ke ʻoki? Ma mua e pili ana i [shear stability], ʻo mākou ka mea mua e hoʻolauna i ka manaʻo/shear a ʻo ka shear kahi huaʻōlelo o ka hoʻolālā. Ma kahi maʻalahi e hiki ai i kahi kikoʻī e pili ana i: ma kahi pālua o ka nui like, e kuhikuhi ana i nā ʻaoʻao ʻaoʻao ʻē aʻe (ʻo ia hoʻi, kū pololei i ke kuleana o ka ikaika), ka mea o ka ʻāpana keʻa ma ke ala o ka ikaika o waho o ka hewa pili. a me ka deformation phenomena.

I ka nānā mua ʻana i kekahi mau abstract, akā e ʻoluʻolu e hoʻokalakupua: deformation shear force reaction of oil in the oil, is refers to the oil molecules under high temperature and high pressure, ma muli o ke koʻikoʻi a me ka shear stress o ka aila molekele ua haki a me ka deformation, pili i ka viscosity o ka aila ponoi.

Shear kūpaʻa, i mua o ka hoʻomaopopo 'ana i elua manaʻo, e ka officially e ako paʻa i ka wehewehena: shear paʻa ka 'elele o ka lubricating aila ma lalo mechanical shear, ke ano o ka RCC hiki ke malama viscosity paʻa.

ʻO ka paʻa ʻana o ka shear maikaʻi, hiki i ka ʻaila lubricating ke paʻa i ka viscosity mechanical shear, hoʻohana i ka pōʻai, ʻoi aku ka paʻa o ka hopena lubrication engine. ʻO ke kūpaʻa ʻāhi, hoʻemi ʻia ka viscosity aila lubricating ma muli o ke ʻoki. Intuitively, ua thinning ka aila.

Ka hopena: maikaʻi a maikaʻi ʻole paha ke kūpaʻa shear, e hoʻopili i ka hopena o ka hoʻohana ʻana i ka aila ma lalo o ke kiʻekiʻe kiʻekiʻe a me ke kaomi kiʻekiʻe, a me ke ola lawelawe pono o ka ʻaila ʻenekini.

Pehea e hoʻomaikaʻi ai i ke kūpaʻa shear i mea e hoʻomaikaʻi ai i ke kūpaʻa shear o ka ʻaila, e hoʻohui ʻia nā ʻepekema i loko o ka oil viscosity index improver, ʻo ia ke ʻano o ka polymer sensitive wela.

Ma nā mahana kiʻekiʻe, ʻo kona kaulahao molekala e hoʻolahalaha ana, hoʻonui ʻia ka friction o ka ʻaila kumu, ka hopena o ka ʻaila wai blocking, ʻo ia hoʻi ka piʻi ʻana o ka viscosity, hoʻemi ʻia ka viscosity lubricant i kekahi ʻano.

Ma keʻano laulā, ma muli o ke ʻano o ka ʻaila iterative mau, me ka manuahi e hoʻokaʻawale i ka hui pū ʻana o ka ʻaila i ʻoi aku ka maikaʻi o ka paʻa ʻana.