Nā waiwai o nā bearings graphite

Nā waiwai o nā bearings graphite

1. Paʻa kemika maikaʻi
He mea paʻa kemika ka graphite, a ʻaʻole emi kona kūpaʻa kemika ma mua o nā metala makamae. ʻO kona solubility i loko o ke kālā hoʻoheheʻe 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 pala a hoʻoheheʻe ʻia i loko o 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 mahana lawelawe o nā bearings kalapona maʻamau ke piʻi i 350 ℃; ʻO 350 ℃ ka bearing graphite metal; Hiki i ka bearing graphite electrochemical ke piʻi i 450-500 ℃ (ma lalo o ke kaumaha māmā), ʻaʻole i loli kona mau waiwai kino a me ka mechanical, a hiki i kona mahana lawelawe ke hiki i 1000 ℃ ma lalo o ka vacuum a i ʻole ka lewa pale.
3. Hana hoʻoluʻu ponoʻī maikaʻi
Ka hali ʻana o ke kiʻi graphiteLoaʻa iā ia ka hana lubrication ponoʻī maikaʻi no nā kumu ʻelua. ʻO kekahi o nā kumu, ʻo ia ka hoʻonohonoho ʻana o nā ʻātoma kalapona i loko o ka lattice graphite ma kēlā me kēia mokulele i ke ʻano hexagonal maʻamau. Ua kokoke ka mamao ma waena o nā ʻātoma, ʻo ia hoʻi ʻo 0.142 nm, ʻoiai ʻo ka mamao ma waena o nā mokulele he 0.335 nm, a ua hoʻokaʻawale ʻia lākou mai kekahi i kekahi ma ke ala like. Hoʻomau hou ka mokulele ʻekolu i ke kūlana o ka mokulele mua, hoʻomau hou ka mokulele ʻehā i ke kūlana o ka mokulele ʻelua, a pēlā aku. I 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 nāwaliwali loa ka ikaika van der Waals ma waena o lākou, no laila he maʻalahi ke haʻalele a paheʻe ma waena o nā papa, ʻo ia ke kumu nui i loaʻa ai i nā mea graphite nā waiwai lubrication ponoʻī.
ʻO ke kumu ʻelua, he paʻa loa ka hoʻopili ʻana o nā mea graphite me ka hapa nui o nā mea metala, no laila hiki i ka graphite exfoliated ke hoʻopili maʻalahi i ka ʻili metala i ka wā e wili ai me ka metala, e hana ana i kahi papa okiʻiʻoniʻoni graphite, ka mea e lilo ai i ka friction ma waena o ka graphite a me ka graphite, no laila e hōʻemi nui ana i ke koina o ke komo ʻana a me ka friction, ʻO ia kekahi o nā kumu e loaʻa ai i nā bearings graphite kalapona ka hana hoʻoluʻu ponoʻī maikaʻi loa a me ka hana antifriction.
4. Nā waiwai ʻē aʻe o ka graphite bearing
Ke hoʻohālikelike ʻia me nā bearings ʻē aʻe,nā mea hāpai graphiteloaʻa pū kekahi conductivity thermal kiʻekiʻe, coefficient haʻahaʻa o ka hoʻonui linear, ka hoʻoluʻu wikiwiki a me ke kūpaʻa wela a pēlā aku.