ʻO ka pauka Graphite kahi ʻano o ka pauka mineral, ka nui o ke kalapona, ʻeleʻele a me ka hina hina;He momona a hiki ke hoʻohaumia i ka pepa.ʻO 1-2 ka paʻakikī, a hiki ke hoʻonui i ka paʻakikī i ka 3-5 me ka hoʻonui ʻana o nā haumia ma ke ala pololei.ʻO ka gravity kiko'ī he 1.9 ~ 2.3.Ma lalo o ke kūlana o ka hoʻokaʻawale ʻana i ka oxygen, ʻoi aku kona wahi hoʻoheheʻe ma luna o 3000 ℃, a ʻo ia kekahi o nā minerala pale wela.Ma lalo o ka mahana maʻamau, ʻoi aku ka paʻa o nā waiwai kemika o ka pauka graphite, hiki ʻole ke hoʻoheheʻe ʻia i ka wai, dilute acid, dilute alkali a me ka solvent organik;He kiʻekiʻe ka wela wela a me ka conductivity ka mea, a hiki ke hoʻohana ʻia e like me ka refractory, conductive a me ka lole lubricating.
Nā hihia noi
1. Hoʻohana ʻia e like me ka refractory material: graphite a me kāna mau huahana i nā waiwai o ke kūpaʻa wela kiʻekiʻe a me ka ikaika kiʻekiʻe.Hoʻohana nui ʻia lākou e hana i nā crucibles graphite i ka ʻoihana metallurgical.I ka hana kila, hoʻohana pinepine ʻia ka graphite ma ke ʻano he mea pale no nā ingots kila a me ka uhi ʻana o nā kapuahi metallurgical.
2. Hoʻohana ʻia ma ke ʻano he conductive mea: hoʻohana ʻia i ka ʻoihana uila no ka hana ʻana i nā electrodes, brushes, carbon rods, carbon tubes, the positive pole of mercury positive current, graphite gaskets, phone parts, and coating of television picture tubes.
3. E like me ka lole lubricating mea: hoʻohana pinepine ʻia ka graphite e like me ka lubricant i ka ʻoihana mechanical.ʻAʻole hiki ke hoʻohana ʻia ka ʻaila lubricating ma ke kiʻekiʻe kiʻekiʻe, ke kiʻekiʻe wela a me ke kiʻekiʻe kiʻekiʻe, ʻoiai ʻo ka graphite wear-resistant material hiki ke hana me ka ʻole o ka lubricating aila i ka wikiwiki sliding kiʻekiʻe ma (I) 200 ~ 2000 ℃.Nui nā lako e lawe ana i nā media corrosive i hana nui ʻia me nā mea graphite i loko o nā kīʻaha piston, nā apo hoʻopaʻa a me nā bearings.ʻAʻole pono lākou e hoʻohui i ka aila lubricating i ka wā o ka hana.He lubricant maikaʻi nō hoʻi ka emulsion graphite no nā hana metala he nui (ke kaha uea a me ke kaha paipu).
kumu
ʻoihana pelu
He paʻa kemika maikaʻi ka graphite.Loaʻa i ka graphite i hana kūikawā nā hiʻohiʻona o ka pale ʻana i ka corrosion, maikaʻi thermal conductivity a me ka haʻahaʻa permeability.Hoʻohana nui ʻia ia e hana i nā mea hoʻololi wela, nā pahu hopena, nā condensers, nā hale kiaʻi, nā hale kiaʻi absorption, nā mea hoʻomaʻamaʻa, nā mea hoʻomehana, nā kānana a me nā lako pahū.Hoʻohana nui ʻia ia i ka petrochemical, hydrometallurgy, acid and alkali production, synthetic fiber, pepa a me nā ʻoihana ʻoihana ʻē aʻe, hiki ke mālama i ka nui o nā mea metala.
Hoʻohana ʻia e like me ka hoʻolei ʻana, ka hoʻokumu ʻana, ka hoʻoheheʻe ʻana a me nā mea metallurgical wela kiʻekiʻe: Ma muli o ka liʻiliʻi thermal expansion coefficient o ka graphite a me kona hiki ke kū i nā loli o ka hoʻoilo wikiwiki a me ka wela, hiki ke hoʻohana ʻia e like me ka mold no nā aniani.Ma hope o ka hoʻohana ʻana i ka graphite, hiki i ka metala ferrous ke loaʻa i ka nui o ka hoʻolei ʻana, kiʻekiʻe kiʻekiʻe o ka pae hoʻopau ʻana, a hiki ke hoʻohana ʻia me ka ʻole o ka hana ʻana a i ʻole ka hana liʻiliʻi, no laila e mālama i ka nui o ka metala.No ka hana ʻana i ka carbide cemented a me nā kaʻina hana metallurgy pauka, hoʻohana mau ʻia nā mea graphite e hana i nā moku seramika no ke kaomi ʻana a me ka sintering.ʻO ka pahu ulu kristal o ke silikoni monocrystalline, ka ipu hoʻomaʻemaʻe kūloko, ka hoʻopili bracket, ka mea hoʻomehana induction, etc.Eia kekahi, hiki ke hoʻohana ʻia ka graphite e like me ka graphite insulation plate a me ke kumu no ka hoʻoheheʻe ʻana i ka vacuum, kiʻekiʻe-mehana kūpaʻa ʻana i ka umu ahi paipu, koʻokoʻo, pā, lattice a me nā mea ʻē aʻe.
Hiki i ka graphite ke pale i ka hoʻonui ʻana i ka paila.Hōʻike nā hoʻāʻo ʻāpana pili i ka hoʻohui ʻana i kahi nui o ka pauka graphite (ma kahi o 4 ~ 5 grams no ke tona wai) i ka wai hiki ke pale i ka hoʻonui ʻana i ka ʻili o ka paila.Eia kekahi, hiki i ka uhi graphite ma ke kapuahi metala, ka hale, ke alahaka a me ka pipeline hiki ke pale i ka corrosion a me ka ʻōpala.
Hiki ke hoʻohana ʻia ka graphite e like me ke alakaʻi penikala, ka puaʻa a me ka mea hana polishing.Ma hope o ka hana kūikawā, hiki ke hana i ka graphite i nā mea kūikawā like ʻole no nā keʻena ʻoihana kūpono.
Eia kekahi, ʻo ka graphite he mea polishing a me ka antirust agent no ke aniani a me ka pepa i ka ʻoihana māmā, a he mea waiwai pono no ka hana ʻana i nā penikala, ka inika, ka pena ʻeleʻele, ka inika, nā daimana a me nā daimana.He mea mālama i ka ikehu maikaʻi a me ka mālama ʻana i ke kaiapuni, i hoʻohana ʻia ma ke ʻano he pākaukau kaʻa ma ʻAmelika Hui Pū ʻIa.Me ka hoʻomohala ʻana o ka ʻepekema hou, ʻenehana a me ka ʻoihana, ke hoʻonui mau nei ke kahua noi o ka graphite.Ua lilo ia i mea waiwai nui no nā mea hoʻohui hou i ke kahua ʻenehana kiʻekiʻe a he hana koʻikoʻi i ka hoʻokele waiwai aupuni.
Ka pale ʻana i ka ʻāina
Hoʻohana ʻia i loko o ka ʻoihana ikehu atomic a me ka ʻoihana pale aupuni: loaʻa i ka graphite ka moderator neutron maikaʻi no ka hoʻohana ʻana i nā reactors atomic, a ʻo ka uranium-graphite reactor kahi ʻano o ka atomic reactor i hoʻohana nui ʻia.ʻO ka mea hoʻohaʻahaʻa i loko o ka reactor nuklea i hoʻohana ʻia ma ke ʻano he mana e loaʻa i kahi helu heheʻe kiʻekiʻe, kūpaʻa a me ka pale ʻana i ka corrosion.Hiki i ka graphite ke hoʻokō pono i nā koi i luna.ʻO ka maʻemaʻe o ka graphite i hoʻohana ʻia ma ke ʻano he atomic reactor he kiʻekiʻe loa, a ʻaʻole pono e ʻoi aku ka maʻi o ka haumia ma mua o ka nui o nā PPM.ʻO ka mea nui, pono ka liʻiliʻi o ka boron ma mua o 0.5PPM.I ka ʻoihana pale aupuni, hoʻohana pū ʻia ka graphite e hana i ka nozzle o ka rocket wahie paʻa, cone ihu o ka missile, nā ʻāpana o nā lako hoʻokele lewa, nā mea insulation thermal a me nā mea anti-radiation.
Ka manawa hoʻouna: Mar-15-2023