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Nā ʻAno Hoʻomohala o nā Mea Bearing Rolling

 

In ka hali ʻōwiliʻO ka hana ʻana, nā waiwai o nā mea e hoʻoholo pololei i ke ola o ka bearing, ka hilinaʻi, a me nā kūlana hana kūpono. I kēia manawa, hana nui ʻia nā ʻāpana bearing me ke kila bearing chromium kalapona kiʻekiʻe, e like me ka GCr15 maʻamau a me GCr15SiMn. I nā makahiki i hala iho nei, me ka hoʻomohala ʻana o nā lako i nā wikiwiki kiʻekiʻe, nā ukana kaumaha, nā mahana kiʻekiʻe, a me nā kūlana hana paʻakikī, ke hoʻomaikaʻi mau ʻia nei nā mea bearing, e hōʻike nui ana i nā kuhikuhi hoʻomohala:

 

1. Ke kila paʻakikī kiʻekiʻe

 

I mea e hoʻokō ai i nā pono o nā ʻāpana bearing nui a mānoanoa hoʻi, ua hoʻomohala mālie ka ʻoihana i nā kila bearing paʻakikī kiʻekiʻe, e like me GCr15SiMo a me GCr18Mo. Hiki i kēia mau mea ke loaʻa kahi ʻano paʻakikī like ma nā ana ʻāpana nui aʻe, e hoʻomaikaʻi ana i ka ikaika holoʻokoʻa a me ke ola luhi o nā ʻāpana, a kūpono no nā bearing nui a me nā lako hana kaumaha.

 

2. Ke kila paʻakikī i hoʻopaʻa ʻia i ka ʻili

 

Hoʻohana pinepine ʻia ke kila paʻakikī o ka ʻili GCr4 i nā lako hana kaumaha e like me nā kaʻa kaʻaahi a me nā wili ʻōwili. Ma ka hoʻohana ʻana i ka hoʻomehana induction alapine waena a me ka hoʻoluʻu wikiwiki, hiki ke hana ʻia kahi papa paʻakikī o kahi hohonu ma luna o ka ʻili o nā ʻāpana, e hāʻawi ana i ka bearing i ka paʻakikī o ka ʻili kiʻekiʻe a me ka paʻakikī o ke kumu kiʻekiʻe, no laila e hoʻomaikaʻi ai i ke kūpaʻa luhi a me ke kūpaʻa hopena.

 

3. Nā ʻAno Hou o ke Kila Paʻa Kila

He kūpaʻa maikaʻi ko nā kila kila kuʻuna e like me 9Cr18 a me 9Cr18Mo (440C) i ka pala, akā ua maʻalahi lākou i ka hana ʻana i nā carbides coarse, e hoʻopilikia ana i ke ola luhi a me ka maikaʻi o ka ʻili. ʻO ke kila kila martensitic 0.7C-13Cr i hoʻomohala ʻia i nā makahiki i hala iho nei, ma ka hoʻemi ʻana i ka nui o ke kalapona a me ka chromium a me ka hoʻemi ʻana i nā carbides eutectic, hoʻomaikaʻi hou aku i ka hana luhi pili, ka paʻakikī, a me ke kūpaʻa ʻana i ka pala o nā bearings. Hoʻohana pinepine ʻia ia i nā bearings pale polū pololei, e like me nā bearings paʻakikī a me nā bearings lako lapaʻau.

 

4. Kila Alloy Ikaika Kiʻekiʻe

 

ʻO nā kila bearing moʻo GT, ma o ka hoʻohuihui alloy i hoʻomaikaʻi ʻia, hoʻomaikaʻi i ka ikaika matrix a me ka paʻa a hoʻonui i ke kūpaʻa tempering. Kūpono no nā hoʻolālā bearing kaumaha a māmā paha, loaʻa iā lākou kahi ola lawelawe maikaʻi ma lalo o nā kūlana lubrication maʻemaʻe.

 

5. Ke kila hali pale haumia

 

I nā hana kūpono, hiki i ka lepo a i ʻole nā ​​ʻāpana ʻaʻahu i loko o ka ʻaila lubricating ke hana i nā indentations ma ka ʻili o ka bearing, e alakaʻi ana i ka nui o ke kaumaha a me ka spalling luhi mua. No ka hoʻoponopono ʻana i kēia pilikia, ua hoʻomohala ʻo Iapana i ka moʻo TF o nā kila bearing pale haumia (e like me TF, HTF, STF, NTF, a pēlā aku).

 

Ma ka hoʻonui ʻana i ka nui o ke kalapona a me nā lakio o nā mea alloy, hana ka mea i nā carbides maikaʻi aʻe a hoʻonui i ka austenite i mālama ʻia, no laila e hōʻemi ana i ka nui o ke kaumaha ma nā kihi indentation. Hōʻike ka ʻike kūpono e hiki i nā bearings i hana ʻia me nā kila TF series ke loaʻa i kahi ola lōʻihi 4-10 mau manawa ma lalo o nā kūlana lubrication haumia.

 

6. Ke kila hali mahana kiʻekiʻe

Ke hoʻohana ʻia nā bearings GCr15 maʻamau i nā wahi mai 100 ℃ a i 200 ℃, e hana maʻalahi kahi "wahi keʻokeʻo ʻālohilohi" haʻahaʻa-paʻakikī ma ka papa lalo o ka mea, a laila e hōʻemi ana i ke ola o ka bearing. No ka hoʻoponopono ʻana i kēia pilikia, ua hoʻomohala ʻia nā kila bearing quasi-kiʻekiʻe-mahana e like me NTJ2 a me KUJ7. Ma ka hoʻonui kūpono ʻana i ka nui o nā mea e like me Cr, Si, a me Mo, ua kāohi ʻia ke kūkulu ʻia ʻana o nā wahi keʻokeʻo ʻālohilohi, e ʻae ana i nā bearings e mālama i ke ola maikaʻi a me ke kūpaʻa dimensional ma 150 ℃.~180℃. Hoʻohana nui ʻia kēia mau mea i nā ʻenekini kaʻa, nā mīkini hana, a me nā lako hana wela.

 

7. Ke kila e hali ana i ka mahana kiʻekiʻe

I nā kūlana hana wela kiʻekiʻe a me ka wikiwiki e like me ka aerospace, ʻaʻole lawa nā mea kuʻuna. ʻO nā kila hali wela mua e like me T1, T2, T10, a me M50, ʻoiai he paʻakikī wela kiʻekiʻe, he nui nā mea alloy a he kumukūʻai kiʻekiʻe.

 

I nā makahiki i hala iho nei, ua hoʻomohala ʻo ʻEulopa a me ʻAmelika Hui Pū ʻIa i kahi hanauna hou o nā kila carburizing wela kiʻekiʻe, e like me M50NiL, CBS1000, a me RBD. I waena o lākou, ʻo M50NiL ka mea i hoʻohana nui ʻia. Ma hope o ka carburizing, hana ʻia nā carbides maikaʻi ma luna o ka ʻili, e hana ana i ke koʻikoʻi compressive koena. Hiki i kona paʻakikī kumu ke hiki i 2.5 mau manawa o M50, e hopena ana i kahi ola luhi kiʻekiʻe. I kēia manawa, hoʻohana nui ʻia ia ma nā kahua lako kiʻekiʻe e like me nā bearings shaft nui aero-engine. Ma keʻano holoʻokoʻa, ke holomua mau nei ka hoʻomohala ʻana o nā mea bearing rolling i ka ikaika kiʻekiʻe, ka hilinaʻi kiʻekiʻe, ke kū'ē i ka haumia, ke kū'ē i ka corrosion, a me ka hana wela kiʻekiʻe. Me ka hoʻomohala ʻana o ka aerospace, nā lako ikehu hou, a me ka hana kiʻekiʻe, e hoʻomau ka noiʻi a me ka hoʻohana ʻana i nā mea bearing hou i ka hohonu, e hāʻawi ana i ke kākoʻo loea ikaika no ka hoʻomaikaʻi ʻana i ka hana bearing.