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Nā Hoʻolālā Koho a me ka Noi no nā Bearings Rolling ma nā Kūlana Hana Kūikawā

 

I nā ʻōnaehana ʻoihana o kēia au, ka hoʻohana ʻana onā bearings ʻōwiliua lōʻihi ka hoʻonui ʻana ma mua o nā noi hoʻoili mīkini maʻamau, e hoʻonui ana i nā kūlana hana kūikawā e like me ke kiʻekiʻe a me ka haʻahaʻa o nā mahana, nā ukana kiʻekiʻe, ka pala, ka hakahaka, a me ka haʻalulu koʻikoʻi. Hoʻoikaika pinepine nā bearings maʻamau e hoʻokō i kēia mau koi hana koʻikoʻi, e pono ai nā hoʻomaikaʻi ʻōnaehana i ka hoʻonui ʻana i nā mea, ka hoʻolālā kūkulu, ka ʻenehana lubrication, a me nā hoʻonā sila e hoʻokō ai i ke kākoʻo hilinaʻi.

 

Wela kiʻekiʻeHe mea maʻamau nā wahi i ka metallurgy, ka hana aniani, a me ka turbomachinery, kahi e pono ai nā bearings e hana mau ma luna o 200°C. Ma lalo o kēia mau kūlana, piʻi ka pilikia o ka palupalu ʻana o ke kila bearings maʻamau, a hiki ke hōʻino ʻia nā cages. Hoʻohana pinepine nā hoʻonā i ke kila i hoʻomehana ʻia i ka mahana kiʻekiʻe (e like me SUJ2-HT), ke kila paʻakikī (e like me JIS-SCM420H), a i ʻole nā ​​​​alloys pale wela (e like me M50 a me Inconel 718), i hui pū ʻia me nā mea ʻōwili keramika (Si₃N₄) e hōʻemi i ka hoʻonui ʻana a me ke kaumaha. No ka lubrication, hoʻohana pinepine ʻia nā uhi lubricant paʻa kiʻekiʻe (e like me MoS₂ a me DLC) a i ʻole nā ​​​​greases wela kiʻekiʻe. I kekahi mau hihia, hoʻohana ʻia nā ʻōnaehana hoʻoluʻu kahe ʻaila-ea. I nā wahi cryogenic a cryogenic paha, e like me nā pamu kinoea kūlohelohe liquefied (LNG) a me nā ʻōnaehana propulsion spacecraft, ʻo ka embrittlement material a me ka solidification lubricant nā pilikia nui. Hana pinepine ʻia nā bearings me ke kila kila austenitic (e like me AISI 440C i mālama ʻia me ka cryogenically) a i ʻole nā ​​​​​​mea hoʻohuihui nickel, i lubricated ʻia me nā aila ester haʻahaʻa-viscosity a i ʻole nā ​​​​​​mea hoʻoluʻu perfluoropolyether (PFPE) e hōʻoia i ka hana hana maikaʻi loa ma nā mahana ma lalo o -196°C.

 

No nā wahi kaumaha a me nā hopena i hoʻouka ʻia, e like me nā mīkini mining, nā wili ʻōwili, a me nā pahu pahu nui, pono nā bearings i ke ola paʻakikī loa a me ka luhi.Nā bearings wiliwili lālani pālua, nā bearings wili ʻehā lālani, a i ʻolenā mea wili poepoehoʻohana pinepine ʻia i kēia mau noi. Hoʻonui ʻia ka hiki ke ukana ma o nā ʻaoʻao wili i hoʻomaikaʻi ʻia, ka mana preload, a me nā hana hoʻonui ʻili e like me carbonitriding.

 

I nā wahi ʻino, e like me nā pamu kemika a me nā lako hana mālama wai kai, hiki i nā bearings kila maʻamau ke popo. ʻO nā hoʻonā e komo pū me nā bearings kila kila (e like me X65Cr13 a me 1.4122),nā bearings hybrid seramika, a i ʻole nā ​​​​uhi pale i ka pala (e like me ka electrophoresis a i ʻole ka uhi ʻana o PVD) ma nā apo o loko a me waho, i hui pū ʻia me nā ʻano sila i hoʻopuni piha ʻia (e like me nā sila laholio hoʻopili a i ʻole nā ​​​​sila labyrinth metala) e hoʻokaʻawale i ka komo ʻana o ka media.

 

Eia kekahi, i nā noi wikiwiki e like me nā spindles uila wikiwiki a me nā compressors centrifugal, pono nā bearings e kaulike i ka friction haʻahaʻa, ka hana wela haʻahaʻa, a me ke kūpaʻa ikaika.Nā bearings pōpō hoʻopili angular(ʻoi aku ka poʻe me nā pōpō keramika i hoʻouka mua ʻia) ua lilo i koho nui, i hui pū ʻia me ka lubrication aila-ea a i ʻole ka ʻenehana hoʻoluʻu pīpī e kāohi pono i ka piʻi ʻana o ka mahana.

 

He mea nui e hoʻomaopopo ʻaʻole hiki i ke koho ʻana o ka bearing no nā kūlana hana kūikawā ke hilinaʻi wale i nā palena maʻamau; pono e hana ʻia kahi loiloi ʻōnaehana ma muli o nā kūlana hana maoli, me ke ʻano o ka ukana, nā ʻokoʻa wikiwiki, ke kūpono o ke kau ʻana, nā hewa hoʻonohonoho, a me nā wā mālama. Ke hoʻomau nei ka nui o nā noi e hoʻohana nei i ka manaʻo o "bearing systems engineering," kahi e hāʻawi ai nā mea hana i ka hoʻolālā maʻamau, ka nānā ʻana i ke kūlana i hoʻohui ʻia, a me nā lawelawe ola piha.

 

I ka hoʻomohala ʻana o nā lako ʻoihana i ka pono kiʻekiʻe, ke ola lōʻihi a me ka mālama haʻahaʻa, ke ulu nei nā bearings ʻōwili no nā kūlana hana kūikawā i nā mea i hui pū ʻia, nā ʻano akamai a me ka lubrication i hoʻohui ʻia, e hāʻawi mau ana i ke kākoʻo koʻikoʻi no ka hana paʻa o nā lako i nā wahi koʻikoʻi.

Inā makemake ʻoe e ʻike i ka ʻike hou aku e pili ana i nā bearing, e ʻoluʻolu e leka uila mai iā mākou:

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