nūhou

E hoʻokaʻawale ma waena o nā bearings lubrication ponoʻī a me nā bearings i hoʻopiha ʻia me ka ʻaila

 

He aha kahii hoʻopiha ʻia me ka ʻailahāpai ʻana?

ʻO ke kino sintered i hana ʻia me ke ʻano hana metallurgy pauka he porous a he mau pono loea o ka hoʻoponopono ʻana i ka helu, ka nui, ke ʻano a me ka hoʻolaha ʻana o nā pores me ke kūʻokoʻa i ke kaʻina hana. Ma ka hoʻohana ʻana i ka porosity o ke kino sintered, ua hoʻopiha ʻia me 10%-40% (hapa nui) o ka ʻaila lubricating, a hoʻohana ʻia i ke kūlana o ka lako ʻaila ponoʻī. I ka wā o ka hana, piʻi ka mahana o ka bearing, a no ka mea ʻoi aku ka nui o ke coefficient o ka hoʻonui ʻana o ka ʻaila ma mua o ka metala, komo koke ia i ka ʻili paheʻe e lubricate i ka bearing. Hiki ke hoʻohana ʻia nā bearings i hoʻopiha ʻia me ka ʻaila no ka manawa lōʻihi me kahi ʻaila hoʻokahi, a hoʻohana pinepine ʻia i nā manawa i hiki ʻole ai ke hoʻopiha hou ʻana.

 

He aha kahihoʻowali ponoʻīhāpai ʻana?

Nā bearings lubrication ponoʻīua māhele ʻia i loko o nā bearings lubrication ponoʻī composite, nā ʻauamo bearing lubrication ponoʻī inlaid paʻa, nā bearings lubrication ponoʻī bimetallic, a me nā bearings lubrication ponoʻī kūikawā.

 

ʻO kekahi o nā ʻano nui o nā bearings self-lubricating inlaid paʻa (i kapa ʻia ʻo JDB) he bearing lubricated hou me nā ʻano o ka bearing metala a me ka bearing lubrication ʻaila ʻole, kahi i hoʻouka ʻia e kahi matrix metala a lubricated ʻia e kahi mea lubricating paʻa i hoʻolālā kūikawā ʻia.

 

Loaʻa iā ia nā ʻano o ka hiki ke hāpai kiʻekiʻe, ke kūpaʻa i ka hopena, ke kūpaʻa wela kiʻekiʻe, ka hiki ke lubrication ponoʻī, a pēlā aku, kūpono loa no ka ukana kaumaha, ka wikiwiki haʻahaʻa, ka reciprocating a i ʻole ka swinging a me nā manawa ʻē aʻe i paʻakikī ke lubricate a hana i ka ʻili aila, a ʻaʻole makaʻu i ka ʻino ʻana o ka wai a me ka ʻino ʻana o nā waikawa ʻē aʻe. Ua hoʻohana nui ʻia nā huahana i nā mīkini hoʻolei hoʻomau metallurgical, nā lako ʻōwili, nā mīkini mining, nā molds, nā mīkini hāpai, nā mīkini lole, ka hana mana makani, nā moku, nā turbines mahu, nā turbines wai, nā mīkini hoʻoheheʻe injection a me nā laina hana lako. ʻOi aku ka pālua o ke kūpaʻa o ke kapa komo ma mua o nā bushings maʻamau.

 

ʻO ka ʻokoʻa ma waenanā bearings i hoʻopiha ʻia me ka ʻaila a me nā bearings lubrication ponoʻī

 

1. Hana ʻia ka bearing i hoʻopiha ʻia me ka ʻaila i ka pauka metala i hui pū ʻia, me kahi ʻokoʻa kūkulu o 10-40%; ʻO ka matrix bearing inlaid self-lubricating he centrifugal casting; He kiʻekiʻe iki ka nui o ka substrate, ʻoi aku ka ikaika o ka hoʻopaʻa ʻana ma mua o nā bearings i hoʻopiha ʻia me ka ʻaila, a ʻoi aku ka lōʻihi o ke ola lawelawe ma mua o nā bearings i hoʻopiha ʻia me ka ʻaila.

 

2. ʻO ka mea lubricating o ka bearing i hoʻokomo ʻia i ka ʻaila he ʻaila lubricating, a ua lawa ka mānoanoa o ka ʻili ʻaila e hoʻopau i ka pilina pololei ma waena o nā ʻili friction ʻelua. I kēia manawa, aia wale nō ka friction ma waena o nā molekala wai, no laila ua liʻiliʻi loa ke coefficient friction (f = 0.001 ~ 0.008), kahi e hōʻemi nui ai i ka friction a me ke komo ʻana. ʻO ka mea lubricating i hoʻokomo ʻia me ka bearing lubricating ponoʻī he mea lubricating paʻa, hiki ke loaʻa ka hopena lubrication maikaʻi ʻoiai ma lalo o nā kūlana ʻaila ʻole, hiki ke hōʻoia i ka lubrication hoʻomau a hoʻomau, a ʻo kona ola lubrication kūpono e kūlike me ke ola o ka matrix;

 

He mea lele a maʻalahi hoʻi ka nalowale ʻana o ka ʻaila lubricating i loko o ka bearing i hoʻopiha ʻia me ka ʻaila, a ua wikiwiki ka nalowale ʻana o ka ʻili ʻaila lubricating ma lalo o ke ana wela a me ke kaomi kiʻekiʻe, a ʻaʻole hiki ke loaʻa ka hopena lubricating kūpono; I loko o ka ʻūlū keleawe graphite, ua hoʻoili ʻia a hoʻohuli ʻia paha ka lubricant paʻa i ka ʻili friction ma o ka friction, a ua hoʻoili ʻia a hoʻohuli ʻia paha ka lubricant paʻa i loko o ka lua a i ʻole ke awāwa e hana i kahi ʻili hoʻoili paʻa me ka lubrication maikaʻi, ka hoʻopili paʻa a me ka uhi like ma ka ʻili friction, kahi e hōʻemi nui ai i ka friction a me ke komo ʻana. I ka holomua ʻana o ka friction, ua hoʻolako mau ʻia ka lubricant paʻa i hoʻokomo ʻia i ka ʻili friction, e hōʻoiaʻiʻo ana i ka lubrication maikaʻi o ka hui friction i ka wā lōʻihi o ka hana.

Inā makemake ʻoe e ʻike hou akuhāpai ʻanaʻike, e ʻoluʻolu e leka uila mai iā mākou:

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