No ke aha e koho ai ka poʻe ʻenekinia i nā bearings Sintered: ʻO ka pono o ka pauka Metallurgy

ʻO ka ʻEpekema Ma hope o nā Bearings Bronze Sintered

 

ʻO ka ʻepekema hana ma hope o nā bearings keleawe i hoʻopaʻa ʻia e hilinaʻi ʻia i ka mana metallurgical pololei e hoʻohuli ai i nā ʻāpana metala wehe i mea hana me ka porosity engineered. Hoʻomaka kēia kaʻina hana kupaianaha me nā mea maka a hoʻopau me kahi mea e hāʻawi ai i ka lubrication mau i kona ola hana.

 

ʻO ka pauka Metallurgy: Ka hoohuli ana i ka metala i ka pauda a me ke kua

ʻO ka pauka metallurgy ke kumu o ka hana ʻana i ka bearing sintered, e hoʻomaka me ka hana ʻana i ka pauda metala. Hoʻohana nā mea hana i ka pauka keleawe atomized i loaʻa ke keleawe me 9-11% tin. Hoʻohui ʻia ka pauka me nā mea hoʻohui, me nā lubricants waxy e kōkua i ke kaʻina hana compaction. A laila hele ka hui ʻana ma o ka hoʻopili ʻana i nā mīkini i nā kaomi make ma nā kaomi mai 200 a 1,500 MPa e pili ana i ka nui hope i makemake ʻia.

Ke neʻe nei ka ʻāpana "'ōmaʻomaʻo" i ke kaʻina sintering ma hope o ka hoʻopili ʻana. Hoʻomaʻamaʻa kēia pōʻai wela i ka ʻāpana i kahi 820°C i loko o kahi ea hoʻomalu ʻia o ka nitrogen a me ka hydrogen (maʻa mau i ka ratio 70:30). Noho ka mahana ma lalo o ka helu heheʻe o ka metala akā hiki ke kiʻekiʻe e hiki ai ke hoʻopuehu. Hoʻohui pū nā ʻāpana metala ma nā wahi pili i kēia wā koʻikoʻi a hana i kahi hale paʻa akā porous e mālama i kona kūpaʻa.

 

Microstructure o Sintered Materials: Porosity by Design

ʻO nā bearings keleawe i hoʻopaʻa ʻia he porosity i manaʻo ʻia e lawelawe i kahi kumu, ʻaʻole like me nā metala paʻa. Loaʻa i kēia mau bearings ka porosity ma waena o 15% a me 25% e ka nui. Hoʻonohonoho kēia hiʻohiʻona i nā mea i hoʻopaʻa ʻia ma kahi ʻokoʻa mai nā metala hoʻolei ʻia a hoʻopilikia i kā lākou mechanical, thermal, a me nā waiwai hana e ka nui.

Aia ka microstructure o ka bearingpores pilika mea e hana ana i ka pūnaewele puni honua. Hāʻawi kēia pūnaewele i ka lubricant e neʻe manuahi i loko o ke ʻano o ka bearing. ʻO nā hiʻohiʻona o ka pauka, ke kaomi compaction, a me nā kūlana sintering e hoʻoholo i ka nui a me ka hāʻawi ʻana i kēia mau pores. Noho ka porosity i ka "wehe" ke hoʻomalu pono ʻia, ʻo ia hoʻi ka pili ʻana o nā pores ma mua o ka noho ʻana ma ke ʻano he wahi kaʻawale.

Hoʻemi ka porosity i ka ikaika mechanical i hoʻohālikelike ʻia i nā metala paʻa akā hoʻolilo i kēia mau bearings i mea waiwai ma ka hiki ʻana i ka lubrication ponoʻī.^[2]. Hiki i nā ʻenekinia ke hoʻololi i ka pākēneka porosity e pili ana i ka mea e pono ai ka noi, e ʻimi i ke kaulike kūpono ma waena o ka ikaika a me nā koi lubrication.

 

KaʻAla ʻAla Impregnation: Hana ʻana i ka Lubrication ponoʻī

ʻO ka porous bronze bearing e hele i ka ʻaila impregnation ma hope o ka sintering. ʻO kēia kaʻina hana koʻikoʻi e hoʻohuli iā ia i mea hoʻoluliluli ponoʻī. Hele ka bearing i loko o nā keʻena maloʻo kahi e haʻalele ai ka ea i nā pores ma mua o ka hoʻokomo ʻana i ka ʻaila kūikawā. Hoʻopiha ka ʻaila ma kahi o 90% o ka nui o ka pore i loaʻa ma o ka hana capillary.

Ke hana nei ka bearing ma o kahi mīkini lubrication kū hoʻokahi i ka wā e hana ai. ʻO ka wela mai ka hoʻololi ʻana o ka lāʻau i ka ʻili o ka ʻili e hoʻoheheʻe ʻia ka ʻaila mai loko mai o nā pores ma luna o ka interface bearing-shaft. Hoʻokumu kēia i kahi kiʻi lubricating lahilahi ma waena o nā ʻāpana neʻe. Hoʻi hou ka ʻaila i nā pores ma o ka hana capillary i ka wā e maʻalili ai ka bearing i ka wā hana ʻole, e mālama ana i kahi pōʻai lubrication mau.^[2].

Hoʻokumu ka ʻaila ʻaila i ka mea i kapa ʻia e nā ʻenekinia he "pumping action". Hoʻokuʻu nā ʻāpana i hoʻouka ʻia i ka aila i ka wā o ka hana ʻana a ʻo nā wahi i hoʻokuʻu ʻia e hoʻihoʻi hou iā ia. Hoʻokumu kēia i kahi ʻōnaehana lubrication mau e hana me ka mālama ʻole. Hiki ke holo hilinaʻi kēia mau bearings lubricating no 3,000-5,000 mau hola me ka ʻole o ka lubrication hou aʻe.

 

Nā Waiwai Pono e hoʻonui i ka hana

Loaʻa i nā bearings Sintered kā lākou hana maikaʻi loa mai nā waiwai waiwai kūʻokoʻa i hele mai mai kakaʻina hana hoʻomeamea pauda. Hāʻawi kēia mau waiwai i nā ʻāpana sintered i nā pōmaikaʻi nui ma mua o ka hoʻolei maʻamau a i ʻole nā ​​​​mea mīkini i nā hoʻohana he nui.

 

Hoʻokaʻawale i ka ikaika like ʻole me nā mea hoʻolei

ʻO ke kaʻina hana hoʻoheheʻe lepo e hana i nā pōmaikaʻi kūkulu ʻoi aku ka maikaʻi ma mua o nā ʻano hoʻolei kuʻuna. He pilikia pinepine nā ʻāpana hoʻolei no ka mea ʻaʻole e maʻalili like nā mea hoʻoheheʻe ʻia. Ke alakaʻi nei kēia i nā ʻokoʻa o ka ikaika, ka nui, a me nā waiwai wela i loko o ka mea. Hiki ke hoʻohaumia ʻia ka huahana hope i ka wā e hoʻoheheʻe ʻia ai ka metala hoʻoheheʻe me nā mea waiwai i ka wā e hoʻolei ana.

ʻOkoʻa nā ʻāpana sintered. Loaʻa iā lākou ka haku mele ma kēlā me kēia pae hana. Laha like nā ʻāpana metala ma mua o ka hoʻopili ʻana a noho ma kahi i ka wā o ka sintering. Hoʻokumu kēia i kahi microstructure paʻa i ʻoi aku ka ikaika, ʻoi aku ka paʻakikī, a ʻoi aku ke kūpaʻa e ʻaʻahu ma ka ʻāpana holoʻokoʻa.

Hāʻawi ke kaʻina sintering i ka mana maikaʻi ma luna o ka microstructure o ka mea ma mua o ka forging a hoʻolei paha. Ua hōʻike ʻia ka noiʻi e hiki ke ʻoi aku ka ikaika o nā ʻāpana sintered maikaʻi i 2-10 mau manawa ma mua o ke kila. Hiki ke emi ka ikaika ma muli o ka porosity, akā e laha like ma ka ʻāpana. ʻOi aku ka manaʻo o ka hana ma lalo o ka ukana.

 

Paʻa Manaʻo ma lalo o nā loli wela

ʻAlohi maoli nā bearings sintered i ka wā e mālama ai i ko lākou ʻano i nā wela like ʻole. Mālama kēia mau ʻāpana i ka hoʻomanawanui dimensional me ka liʻiliʻi distortion mahalo i kā lākou ʻano hana hana kūʻokoʻa.

ʻElua kumu nui e hoʻokumu i kēia kūpaʻa. Hāʻawi nā pores i wahi no ka hoʻonui iki ʻana i ka wela me ka ʻole e hoʻololi i nā ana holoʻokoʻa. Hoʻonui a hoʻopaʻa like ka microstructure like ʻole ma mua o nā mea i hoʻolei ʻia, ka mea e pale ai i ka warping a me ke kaumaha.

Kōkua nui kēia kūpaʻa i ka wā e loli ai ka mahana i ka wā e hoʻohana ai. Hoʻemi ʻia nā mea hoʻohālike alumini oxide e 17.6% i ka wā o ka sintering ma 1600°C akā e mālama mau i ka 98.3% pili pili me ke ʻano kūlike. Noho pololei nā ʻāpana kila ʻoiai ke hoʻopaʻa ʻia ma luna o 2500°F (1370°C) .

ʻOi aku ka ʻoi aku ka pololei o ke ana mai nā mea hoʻohui hoʻomalu. Hoʻohui ʻia ʻo Silicon nitride i nā laʻana i hoʻololi ʻia i ka boron e pale i ka nui o ka distortion i ka wā o ka sintering.

 

ʻO nā ʻano kūʻē kūʻē o nā Alloy maʻamau

Hiki iā ʻoe ke kiʻi i nā bearing sintered i nā hui like ʻole, kēlā me kēia me kāna mau hiʻohiʻona ponoʻī.

Nā Aluia Kūlana keleawe: Maukeleawe kiʻi ʻia(90% copper, 10% tin) pale maikaʻi i ka ʻaʻahu a lōʻihi ka lōʻihi, e lilo ia i koho maikaʻi loa no ka hoʻohana nui ʻana. ʻO ka hoʻohui ʻana i ka graphite i nā composites i hoʻokumu ʻia i ke keleawe e kōkua iā lākou e hana maikaʻi me ka liʻiliʻi liʻiliʻi a noho paʻa i nā mahana he nui.

keleawe alakai: He 14-16% ke alakaʻi kēia mau alloys a ma kahi o 20% ka liʻiliʻi ma mua o ke keleawe 90-10 maʻamau. Hana lākou i ka liʻiliʻi liʻiliʻi a ʻoi aku ka maikaʻi o ka pale ʻana i ka ʻeha i ka wā e emi ai ka lubricant. Hōʻike nā ho'āʻo e hiki i kēia mau mea ke lōʻihi 7-10 mau manawa ma mua o ke kila i'ōwiliʻia ma kekahi mau kūlana (Pv=6-12 MPa·m/sec).

Hui keleawe-Hao: Ke kūʻai nei kēia mau alloys i nā palena wikiwiki no ka ikaika compressive ʻoi aku ka maikaʻi. Hana maikaʻi lākou no ka haʻalulu a me nā ukana kaumaha. ʻO ka hoʻohui ʻana i ka 1.5% kalapona manuahi e hiki ai i kēia mau mea ke hoʻomaʻamaʻa wela a hiki i ka paʻakikī o Rockwell C65, me ka pale ʻana iā lākou.

ʻO nā mea hao hao: He emi ke kumu kūʻai o kēia mau mea akā ke hana nei i nā bearings maikaʻi, kahi e kaulana ai lākou i nā kaʻa. Paʻa lākou i ka aila ma muli o ka porosity kiʻekiʻe a kūʻē maikaʻi i ka lole, ʻoiai he mau palena haʻahaʻa ko lākou PV.

ʻO ka mahana sintering ka mea nui i nā waiwai lole. ʻO ka Ultra High-Temperature Sintering (UHTS) ma luna o 2500°F (1370°C) e hana ana i nā pores liʻiliʻi a palahalaha i loko o ka mea. ʻO kēia ka mea i ʻoi aku ka ikaika, ʻoi aku ka paʻakikī, a ʻoi aku ke kūpaʻa i ka ʻaʻahu ma mua o nā ʻano sintering maʻamau.

 

Nā Bearings Sintered Lubricating: Pehea lākou e hana ai

 

Ke hana nei nā bearings sintered lubricating ma o kahi ʻōnaehana lubrication pani pani ʻia e holo me ke kōkua ʻole o waho. Mālama kēia mau ʻāpana i kā lākou lubrication ponoʻī ma o nā mīkini kūikawā e hoʻololi i nā kūlana hana.

 

Ka Mekani Hana Kapila

ʻO ka mana o nā bearings sintered pono'ī e hele mai mai kā lākou porous i hoʻopili ʻia, nona ka 10% a 35% o ka nui o ka lawe ʻana. Hoʻokumu kēia mau pores i kahi pūnaewele paʻakikī i nā mea āpau a hana ma ke ʻano he waihona aila. ʻO ka hoʻopiha mua ʻana o kēia mau hakahaka ma o ka impregnation vacuum, kahi e haʻalele ai ka ea i nā pores ma mua o ke komo ʻana o ka ʻaila. A laila huki a paʻa nā paia porous i ka ʻaila ma o ka ikaika capillary - ʻo ia ka hana kūlohelohe e piʻi ai ka wai i ka ʻumekaumaha ma nā wahi paʻa.

Hoʻokumu kēia hiʻohiʻona capillary i ka mea i kapa ʻia e nā ʻenekini he ʻili "holo-i" ma luna o ka papa hoʻoheheʻe. E ʻike ʻoe i ka hana haʻahaʻa haʻahaʻa ma mua o ka pā ʻana o ka bearing i kona wahi momona. Hana ʻia ka microstructure e like me ka sponge e mālama a hoʻokuʻu i ka lubricant e like me ka mea e pono ai i kona ola ʻana.

 

Hoʻokuʻu ʻaila i ka wā o ka hana

Hoʻokuʻu ka bearing i ka ʻaila ma luna o kona ʻili ma o kekahi mau mīkini i ka wā e hoʻomaka ai e holo. Hoʻonui ka ʻaila i ka wela ma waena o ke kumu a me ka bearing. Hoʻokuʻu kēia hoʻonui i kekahi ʻaila mai loko mai o nā pores ma luna o ka ʻili hoʻoheheʻe.

Hoʻokumu ka hoʻololi ʻana i ka "pumping action" i ka manawa like. Hoʻopuka kēia hana i nā ʻāpana puʻe maikaʻi ʻole i loko o ka kiʻiʻoniʻoni ʻaila lubricating a huki hou i ka aila mai ke kino halihali a i ka ʻili. ʻO ka hui pū ʻana, ka hopena pumping a me ka hoʻonui ʻana i ka wela e hana i kahi kiʻi ʻaila pale ma waena o ke kumu a me ke kau ʻana e pale ai i ka pilina metala.

Pono ka bearing i ka neʻe rotational e hana pono. Pono ʻoe i ka wikiwiki kiʻekiʻe a me ka hoʻololi mau ʻana no ka mālama ʻana i kahi kiʻiʻoniʻoni lubricating piha ma ka ʻili o ka bearing.

 

Reabsorption I ka manawa o ka hooluolu ana

Ke hoʻomau nei ka pōʻaiapili lubricating i ka wā e pau ai ka huli ʻana a maʻalili ka bearing. Hoʻi ka ʻaila nui i ka hale porous ma o ka hana capillary ke hāʻule ka mahana. Hoʻopau kēia reabsorption i ka ʻaila mai ke kūkulu ʻana a kulu paha.

Hoʻihoʻi ka bearing i ka ʻaila i hoʻokuʻu ʻia mai nā wahi i hoʻouka ʻia i ka wā o ka hana. ʻO kēia hoʻololi mau - ka aila e puka mai ana i ka wā o ka hana a hoʻi hou i ka wā hoʻomaha - hana i kahi pōʻai lubrication pau ʻole. Mālama ke kaʻina hana i ka laha ʻana o ka lubricant ma luna o ka ʻili hoʻoheheʻe, no laila e ikaika mau ka hana e like me ka pau ʻana o ka papa sliding.

 

Nā Anana Hana: Nā kumu PV a me nā palena hoʻouka

 

Nānā nā ʻenekinia i nā metric hana kikoʻī e koho i nā bearing sintered e kūlike i nā pono hana like ʻole. Kōkua kēia mau ʻāpana ʻenehana i ka hoʻoholo ʻana i nā palena hana palekana a pale i ka hāʻule mua.

 

Ka hoomaopopo ana i na mea PV ma ke koho ana

He kuleana koʻikoʻi ka mea PV i ke koho ʻana i nā bearings sintered. E helu ʻoe iā ia ma ka hoʻonui ʻana i ka haʻawe halihali (P) i nā paona i kēlā me kēia ʻīniha kuea o ka ʻāpana haʻi i manaʻo ʻia e ka wikiwiki o ka ʻili (V) i nā kapuaʻi i kēlā me kēia minuke. Hāʻawi kēia iā mākou i kahi papa kuhikuhi o ka wela frictional ma ka ʻili e pili ana i ka lōʻihi o ka lōʻihi. Loaʻa i nā bearings porous maʻamau ka waiwai PV kiʻekiʻe o 50,000. Manaʻo nā mea hana e mālama mau i ka hana ma 20,000 e hoʻonui i ke ola lawelawe me ka ʻole o ka lubrication. Pono ka mālama akahele ʻana o nā kuʻekuʻe me nā helu PV kiʻekiʻe o 10,000.

Hana ʻia ke ola o ka bearing i kona waiwai PV - ʻoi aku ka kiʻekiʻe o ka PV ʻoi aku ka pōkole o ke ola lawelawe. ʻO ia ke kumu e koho pinepine ai nā ʻenekinia i nā waiwai PV palekana haʻahaʻa i ka wā o ka hoʻolālā ʻana e hoʻolōʻihi i nā ʻāpana.

 

Kūʻokoʻa vs

Hana ʻia ka haʻawe paʻa i ka neʻe ʻole ʻana o nā ʻili e pili ana i kekahi i kekahi. ʻO ka ikaika waiwai ke lilo i kumu palena nui i kēia mau hihia. Hōʻike ka palena haʻahaʻa paʻa i ka ikaika e hoʻololi i ke anawaena o ka bearing e ka hapalua o ka ʻae ʻae ʻia.

ʻO ka haʻahaʻa dynamic e pili ana i ka neʻe ʻana e hoʻopau i ka bearing. Loaʻa i nā bearings Sintered nā helu hoʻouka ikaika ma ka hapakolu o kā lākou helu haʻahaʻa paʻa. Hōʻike kēia hōʻemi nui i ka pili ʻana o ka neʻe mau ʻana i nā ʻili.

 

Ka palena o ka mama o na mea hoolele okoa

Loaʻa i kēlā me kēia haku mele ʻana i kāna mau palena wikiwiki. ʻO nā mea keleawe i hoʻokumu ʻia e ʻae iā ʻoe e holo i ka wikiwiki kiʻekiʻe. ʻO nā haku mele hao hao e kūʻai aku i ka wikiwiki no ka ikaika compressive maikaʻi aʻe. ʻO nā bearings sintered maʻamau e holo maʻamau i ka wikiwiki o ka ʻili a hiki i 1000 kapuaʻi i kēlā me kēia minuke.

 

Nā hopena wela ma nā palena hana

Hoʻololi nui ka mahana i ka hana ʻana o nā bearing sintered. ʻOi aku ka maikaʻi o ka hapa nui o nā ʻaila lubricating mineral ma waena o 0-80°C. E hāʻule wikiwiki ana ka hana ma luna o 80°C, e hāʻule ana ma kahi o 60% o nā waiwai maʻamau.

Hoʻololi pū ka mahana i ka neʻe ʻana o ka ʻaila i loko o ka hale porous. ʻO ka mahana wela e hoʻonui ai i ka ʻaila a maʻalahi ke kahe mai nā pores a hiki i nā ʻili. ʻOi aku ka mānoanoa o ka ʻaila ma ke anuanu, hiki ke kaupalena i ka lubrication kūpono i ka wā e hoʻomaka ai.

 

Ka hoʻohālikelike ʻana i nā Bearings Sintered vs nā Bearings Ball

 

Pono nā ʻenekinia e hoʻomaopopo i nā ʻokoʻa maʻamau ma waena o nā bearing sintered a me ka pōleʻa e hoʻokō i ka hana kiʻekiʻe. Hele mai kēia mau ʻano bearing me kā lākou pono ponoʻī e hoʻolilo iā lākou i kūpono no nā kaiapuni hana kūikawā.

 

Hoʻohālikelike Hoʻohālikelike Pilikino

Hōʻike ʻia nā hiʻohiʻona friction kūʻokoʻa i nā bearings a me nā bearings sintered. ʻOi aku ka haʻahaʻa o nā koena friction o nā bearings, mai ka 0.0008 a i ka 0.0035 ma muli o ke ʻano. Loaʻa i nā bearings sintered nā waiwai friction kiʻekiʻe akā e hoʻopau iā ia ma o kā lākouhale ʻaila-impregnatedʻo ia ka mea e mālama ai iā lākou i ka lubricated. Piʻi ka friction coefficient i nā bearing sintered e like me ka pau ʻana o ka aila, kahi i koho maikaʻi ʻole ai lākou no nā noi kiʻekiʻe me ka ʻole o ka lubrication kūpono.

ʻO nā bearings pōleʻa kāu koho maikaʻi loa e hōʻemi i ka nalowale o ka ikehu no ka mea e ʻōwili lākou ma mua o ka paheʻe e like me nā bea sintered. Akā ʻoi aku ka maikaʻi o nā bearing sintered i nā hana hoʻomaha a hele. ʻO kā lākou mau hiʻohiʻona lubricating ponoʻī e pale i nā pilikia lāʻau-slip āu e ʻike pinepine ai i nā bearings ʻaʻole i lubricated pono.

 

Nā ʻano walaʻau a me ka haʻalulu

ʻOi aku ka mālie o nā bearings sintered ma mua o nā bearings pōpō, ʻoi aku hoʻi ma nā wikiwiki kiʻekiʻe. Hana ʻia ka walaʻau ʻana o nā mea pōpō pōleʻa no ka mea e pili ana ko lākou mau mea ʻōwili kekahi i kekahi. Ke piʻi aʻe nei ka nui o ka walaʻau i ka hiki ʻana o nā bearings i ka hopena o ko lākou ola.

Hoʻouna ʻia ka haʻalulu ʻoi aku ka haʻalulu ma o nā ʻōnaehana mechanical. Hōʻike nā noiʻi hiki i ka haʻalulu nui ke ʻoki i ke ola pōkole a hoʻomāhuahua iā lākou. ʻO ka neʻe ʻana i nā bea sintered e kōkua iā lākou e hoʻopaʻa maikaʻi i ka haʻalulu. Hoʻolilo kēia iā lākou i koho maikaʻi loa no nā noi kahi e mālama pono ʻia ai ka walaʻau.

 

Nā Koina Hoʻomalu: Hoʻonohonohoʻia vs

ʻOkoʻa loa ka pono o ka mālama ʻana i kēia mau bearings. Pono ka lubrication maʻamau i nā bearings i mea e holo maikaʻi ai a pale i ka hāʻule mua. ʻO nā bearings Sintered e mālama i ka aila i loko o ko lākou hale porous, kahi e hana ai i kahi ʻōnaehana lubricating ponoʻī e pono ai ka mālama liʻiliʻi.

Pono ʻoe i nā ʻenehana akamai e nānā i nā bearings i ka wā lawelawe. Ke hoʻomau nei nā bearing sintered i ka hana ʻoiai lākou e hoʻomaka ana e hāʻule. Hoʻokani pinepine lākou i ka leo ʻoi aku ma mua o ka hopu ʻana i nā mea āpau - ʻaʻole like me nā bearings pōpō e laka ʻole me ka ʻōlelo ʻole.

 

ʻO ke ola ma lalo o nā kūlana hana like ʻole

ʻOi aku ka lōʻihi o ka piʻi ʻana o ka pōleʻa i nā kūlana kiʻekiʻe a me nā kūlana kiʻekiʻe. He kuleana nui ke kaiapuni hana i ka maikaʻi o ka hana ʻana o kēlā me kēia ʻano. Hana maikaʻi nā bearings i hoʻopaʻa ʻia i nā hana paʻa, haʻahaʻa-wikiwiki. ʻOi aku ka maikaʻi o ka hoʻomaka ʻana a me ka hoʻohuli ʻana i nā hana pōʻalo.

Pili ka mahana i ka lōʻihi o ka lōʻihi o nā ʻano bearing ʻelua. Hoʻohana maikaʻi ʻia nā piʻi kinipōpō ma waena o kahi ākea ākea o nā wela, kiʻekiʻe a haʻahaʻa. ʻOi aku ka maikaʻi o nā bearing sintered a hiki i ka 85°C. Ma luna o kēlā, nalowale ko lākou hiki ke lubricate wikiwiki.

 

Ka hopena

ʻO nā bearings Sintered e hōʻike ana i kahi holomua i ka ʻenekinia e hoʻohui i ka pauka metala me ka hiki ke hoʻoluhi ponoʻī. Hoʻokumu ko lākou porous i ka 10% a i ka 35% o ka nui o ka nui a hana i kahi pūnaewele o nā kahawai pili e hōʻoia i ka lubrication mau.

Ke kūpaʻa nei kēia mau bearings hou i nā ʻano wela like ʻole a mālama pono i ka ikaika i loko o ko lākou hale. ʻOiai ʻoi aku ka nui o ko lākou friction coefficient ma mua o ko nā bearings ball, ʻo kā lākou ʻano lubrication ponoʻī e kūpono iā lākou no nā noi e pono ai ka mālama liʻiliʻi a me ka hana mau.

Ke hilinaʻi nei ke kaʻina hana i ka pololei metallurgical a me nā mahana sintering kikoʻī ma waena o 800 ° C a me 850 ° C. Hoʻokumu kēia i nā bearings e hana hilinaʻi ma nā kumu PV a hiki i 50,000. ʻO nā haku mele keleawe maʻamau me 90% keleawe a me 10% tin e hāʻawi i ka pale maikaʻi loa mai ka ʻaʻahu a me ka ʻino. Hoʻolilo kēia mau waiwai iā lākou i mea waiwai i nā hoʻonohonoho hana kiʻekiʻe.

ʻIke nā mea ʻenekinia i nā pōmaikaʻi o nā bearing sintered. Hana mālie lākou, pono ka mālama liʻiliʻi, a hana hilinaʻi ma lalo o ka wikiwiki a me nā haʻahaʻa haʻahaʻa. Hoʻohui ʻia me ka lubrication ponoʻī, hoʻolilo kēia mau hiʻohiʻona iā lākou ke koho maikaʻi loa inā ʻoi aku ka paʻa ʻana o ka hana mālama ʻole ma mua o ka wikiwiki kiʻekiʻe a i ʻole ka hiki ke hoʻouka.