Nā hōʻailona nui o nā lubricants

Nā waiwai nui a me nā pono kemika

Loaʻa i kēlā me kēia ʻano o ka hamo lubricating i kona ʻano maʻamau a me nā waiwai kemika e hōʻike i ke ʻano kūlohelohe o ka huahana. No nā lubricants, kēia mau ʻano kino a me nā waiwai kemika e like me kēia:

 

(1) Ka lahilahi

ʻO ka maʻalahi ka maʻalahi a hoʻohana pinepine ʻia i ka papa kuhikuhi hana kino no nā lubricants. Hoʻonui ka mānoanoa o ka aila lubricating me ka hoʻonui ʻana o ka nui o ke kalapona, oxygen, a me ka luaipele i kāna hana. No laila, ma lalo o ka viscosity like a i ʻole ka nui o ka nui o ka mole molekika, ke kiʻiona o nā aila lubricating i piha i nā hydrocarbons ʻaʻala a me nā gum a me nā asphaltenes ʻO ka mea nui loa, me nā cycloalkanes i waenakonu, a me nā mea liʻiliʻi me nā alkane ʻē aʻe.

 

(2) helehelena (chromaticity)

Hiki i ke kala o ka ʻaila ke hōʻike pinepine i kāna hana hou a paʻa. No ka aila kumu, ke kiʻekiʻena o ke kiʻekiʻe o ka hoʻomaʻemaʻe, hoʻoneʻe ʻia ka mea hoʻomaʻemaʻe i nā oxides hydrocarbon a me nā sulfides, a ʻoi aku ka māmā o ke kala. Eia nō naʻe, inā like ke ʻano o ka hoʻomaʻemaʻe, ʻokoʻa ke kala a me ka transparency o ka aila kumu i hoʻokumu ʻia mai nā kumu aila like ʻole a me nā aila kumu ʻole.

No nā lubricants hou i hoʻopau ʻia, ma muli o ka hoʻohana o nā mea hoʻohui, ke kala ma ke ʻano he index e hoʻokolokolo i ke kēkelē o ka hoʻomaʻemaʻe ʻana o ka aila kumu i nalowale ke ʻano kumu.

 

(3) papa kuhikuhi viscosity

Hōʻike ka papa kuhikuhi viscosity i ke kekelē e loli ai ka viscosity aila me ka mahana. ʻO ke kiʻekiʻe o ka papa kuhikuhi viscosity, ka mea liʻiliʻi e hoʻopili ʻia ai ka viscosity aila e ka mahana, ʻoi aku ka maikaʻi o kāna hana viscosity-mehana, a ʻo ka hope

 

(4) Viscosity

Hōʻike ka viscosity i ka friction o loko o ka aila, a he hōʻailona ia o ka aila a me ka wai. Me ka ʻole o nā mea hoʻopili hana, ʻoi aku ka nui o ka viscosity, ʻoi aku ka kiʻekiʻe o ka ikaika o ka ʻaila, a ʻoi aku ka maikaʻi o ka wai.

 

(5) Kukui uila

ʻO ke kiko uila kahi hōʻailona o ka evaporation o ka aila. ʻO ka māmā o ka aila ʻāpana, ʻoi aku ka nui o ka evaporation a me ka haʻahaʻa o kāna kiko uila. ʻO ka mea ʻē aʻe, ʻo ke kaumaha o ka aila, ka liʻiliʻi o ka evaporative, a ʻo ke kiʻekiʻe kona kiko uila. I ka manawa like, ʻo ka flash point kahi hōʻailona o ka weliweli ahi o nā huahana ʻaila. Hoʻokaʻawale ʻia nā pae weliweli o nā huahana aila e like me kā lākou mau kiko uila. Aia ke kiko uila ma lalo o 45 ℃ ma ke ʻano he huahana flammable, a ma luna o 45 ℃ nā huahana flammable. Pāpā loa ʻia e hoʻomehana i ka aila i kāna pāmahana kiko uila i ka mālama ʻana o ka aila a me ka lawe ʻana. I ke ʻano o ka viscosity like, ʻo ke kiʻekiʻe o ke kiko uila, ʻoi aku ka maikaʻi. No laila, pono i ka mea hoʻohana ke koho e like me ka mahana a me nā kūlana hana o ka lubricant i ke koho ʻana i ka lubricant. Manaʻo ʻia he 20 ~ 30 ℃ ke kiko uila ma mua o ke ana wela, a hiki ke hoʻohana ʻia me ka maluhia o ka noʻonoʻo.


Ka manawa o ka manawa: Dec-25-2020