ʻO nā ʻano o ka graphite bearings

ʻO nā ʻano o ka graphite bearings

1. Paʻa kemika maikaʻi
He mea paʻa kemika ka Graphite, a ʻaʻole emi kona kūpaʻa kemika i ko nā metala makamae. ʻO kona solubility i loko o ke kālā hoʻoheheʻe ʻia he 0.001% - 0.002% wale nō.graphiteʻaʻole hiki ke hoʻoheheʻe ʻia i loko o nā mea hoʻoheheʻe organik a inorganic paha. ʻAʻole ia e ʻino a hoʻoheheʻe ʻia i ka hapa nui o nā waikawa, nā kumu a me nā paʻakai.
2. Ke kūpaʻa wela kiʻekiʻe o ka graphite bearing
Ma o nā hoʻokolohua, hiki i ka wela o ka lawelawe o nā bearings carbon grade ke hiki i 350 ℃; ʻO ka graphite metala ka 350 ℃; Hiki ke piʻi ka graphite grade electrochemical i 450-500 ℃ (ma lalo o ka haʻahaʻa māmā), ʻaʻole i hoʻololi ʻia kona mau kino kino a me ka mechanical, a hiki i ka mahana o kāna lawelawe ke hiki i 1000 ℃ ma lalo o ka vacuum a i ʻole ka lewa pale.
3. ʻO ka hana lubricating maikaʻi
Ka hali kalakalaLoaʻa iā ia ka hana hoʻomaʻemaʻe ponoʻī no nā kumu ʻelua. ʻO kekahi o nā kumu ʻo ia ka hoʻonohonoho ʻana o nā ʻātoma kalapona i ka lattice graphite ma kēlā me kēia mokulele i kahi ʻano hexagonal maʻamau. Ua kokoke ka mamao ma waena o nā ʻātoma, ʻo ia ka 0.142 nm, a ʻo ka mamao ma waena o nā mokulele he 0.335 nm, a ua hoʻokaʻawale ʻia lākou mai kekahi i kekahi ma ka ʻaoʻao like. Hoʻopuka hou ka mokulele ʻekolu i ke kūlana o ka mokulele mua, ʻo ka mokulele ʻehā e hana hou i ke kūlana o ka mokulele ʻelua, a pēlā aku. I loko o kēlā me kēia mokulele, ikaika loa ka ikaika hoʻopaʻa ma waena o nā ʻātoma kalapona, ʻoiai he nui ka mamao ma waena o nā mokulele, a ʻo ka ikaika van der Waals ma waena o lākou he nāwaliwali loa, no laila ua maʻalahi ka haʻalele a paheʻe ma waena o nā papa, ʻo ia ke kumu kumu. no ke aha i loaʻa ai i nā mea graphite nā waiwai lubricating ponoʻī.
ʻO ke kumu ʻelua, ʻo nā mea graphite i hoʻopili ikaika ʻia me ka hapa nui o nā mea metala, no laila hiki i ka graphite exfoliated ke hoʻopili maʻalahi i ka ʻili metala ke wili me ka metala, e hana ana i kahi papa okiʻi graphite, ka mea i lilo i ka friction ma waena o graphite a me graphite, pela e hoemi loa i ka lole a me ka friction coefficient, ʻO kēia kekahi o nā kumu i loaʻa ai i nā bearings carbon graphite maikaʻi loa ka hoʻomaʻamaʻa ponoʻī a me ka hana antifriction.
4. Nā waiwai ʻē aʻe o ka graphite bearing
Hoʻohālikelike ʻia me nā bearings ʻē aʻe,graphite bearingsloaʻa nō hoʻi ke kiʻekiʻe thermal conductivity, haʻahaʻa coefficient o ka hoʻonui laina, hoʻomaʻamaʻa wikiwiki a me ka pale wela a pēlā aku.