Isostatic kaomi graphitehe ʻano mea graphite hou i hoʻomohala ʻia i nā makahiki 1960, nona nā ʻano waiwai maikaʻi loa. No ka laʻana, ʻoi aku ka maikaʻi o ka pale ʻana o ka graphite isostatic. I loko o ka lewa inert, ʻaʻole i emi wale kona ikaika mechanical me ka piʻi ʻana o ka mahana, akā e piʻi aʻe, a hiki i kona waiwai kiʻekiʻe ma kahi o 2500 ℃; Ke hoʻohālikelike ʻia me ka graphite maʻamau, maikaʻi a paʻa kona ʻano, a maikaʻi kona kūlike; He haʻahaʻa loa ka coefficient o ka hoʻonui ʻana i ka wela a maikaʻi loa ka pale ʻana i ka haʻalulu wela; Isotropic; ʻO ke kūpaʻa kino kino ikaika, ka wela a me ka conductivity uila; Loaʻa i ka hana hoʻoponopono mechanical maikaʻi loa.
Ma muli o kāna hana maikaʻi loa e hoʻohana nui ʻia ai ka graphite kaomi isostatic i nā kula e like me ka metallurgy, chemistry, uila, aerospace, a me ka ʻoihana ikehu atomic. Eia kekahi, me ka hoʻomohala ʻana o ka ʻepekema a me ka ʻenehana, e hoʻonui mau ana nā kahua noi.
Kaʻina hana o ka isostatic kaomi graphite
Hōʻike ʻia ke kaʻina hana o ka isostatic pressing graphite ma ke kiʻi 1. Ua ʻike ʻia he ʻokoʻa ke kaʻina hana o ka isostatic pressing graphite mai nā electrodes graphite.
Pono ka graphite kaomi Isostatic i nā kumu waiwai isotropic, pono e hoʻoheheʻe ʻia i mau pauka ʻoi aku ka maikaʻi. Pono e hoʻohana ʻia ka ʻenehana hana hoʻoheheʻe isostatic anuanu, a lōʻihi loa ka pōʻai ʻai. I mea e hoʻokō ai i ka nui o ka pahuhopu, koi ʻia nā pōʻaiapuni impregnation he nui, a ʻoi aku ka lōʻihi o ka pōʻaiapili graphitization ma mua o ka graphite maʻamau.
ʻO kahi ala ʻē aʻe no ka hana ʻana i ka graphite kaomi isostatic ʻo ia ka hoʻohana ʻana i nā microspheres carbon mesophase e like me nā mea maka. ʻO ka mea mua, ua kau ʻia nā microspheres carbon mesophase i ka mālama ʻana i ka oxidation stabilization i nā mahana kiʻekiʻe, a ukali ʻia e ke kaomi isostatic, a ukali ʻia e ka calcination a me ka graphitization. ʻAʻole hoʻokomo ʻia kēia ʻano hana ma kēia ʻatikala.
1.1 Mea maka
ThʻO nā mea maka no ka hana ʻana i ka graphite kaomi isostatic me nā aggregates a me nā mea hoʻopili. Hana ʻia nā hōʻuluʻulu mai ka coke petroleum a me ka coke asphalt, a me ka coke asphalt lepo. No ka laʻana, ʻo ka AXF series isostatic graphite i hana ʻia e POCO ma ʻAmelika Hui Pū ʻIa i hana ʻia mai ka ground asphalt coke Gilsontecoke.
I mea e hoʻololi ai i ka hana huahana e like me nā hoʻohana like ʻole, hoʻohana ʻia ka carbon black a me ka graphite artificial e like me nā mea hoʻohui. Ma keʻano laulā, pono e calcined ʻia ka coke petroleum a me ka asphalt coke ma 1200 ~ 1400 ℃ e wehe i ka makū a me nā mea maʻalahi ma mua o ka hoʻohana ʻana.
Eia nō naʻe, i mea e hoʻomaikaʻi ai i nā waiwai mechanical a me ka structural density o nā huahana, aia kekahi hana pololei o ka isostatic pressing graphite me ka hoʻohana ʻana i nā mea maka e like me ka coke. ʻO ke ʻano o ka coking ʻo ia ka loaʻa ʻana o nā mea maʻalahi, loaʻa iā ia nā waiwai sintering ponoʻī, a hoʻonui a hoʻopaʻa like me ka coke binder. Hoʻohana maʻamau ka mea hoʻopili i ka pitch tar lanahu, a e like me nā ʻano mea hana like ʻole a me nā koi o ke kaʻina hana o kēlā me kēia ʻoihana, ʻo ka wahi palupalu o ka lanahu tar pitch i hoʻohana ʻia mai 50 ℃ a 250 ℃.
ʻO ka hana o ka isostatic pressing graphite e hoʻopilikia nui ʻia e nā mea maka, a ʻo ke koho ʻana i nā mea waiwai kahi loulou nui i ka hana ʻana i ka huahana hope loa. Ma mua o ka hānaiʻana, pono e nānā ponoʻia nāʻano a me ke kūlike o nā mea maka.
1.2 wili
Pono ka nui aggregate o ka isostatic pressing graphite e hiki i lalo o 20um. I kēia manawa, ʻo ka graphite kaomi isostatic i hoʻomaʻemaʻe ʻia he 1 μm ka lōʻihi. He lahilahi loa.
No ka wili ʻana i ka coke aggregate i loko o ia pauda maikaʻi, pono kahi mea ʻuʻuku ultra-fine crusher. ʻO ka wili ʻana me ka nui o ka nui o ka 10-20 μ Pono ka pauka o m i ka hoʻohana ʻana i ka wili wili kū i luna, me ka nui o ka nui o ka nui ma lalo o 10 μ Pono ka pauka o m i ka hoʻohana ʻana i ka mīkini kahe ea.
1.3 Ka hui ʻana a me ka hui ʻana
E hookomo i ka lepo lepo a me ka lanahu pitch binder i loko o ka hui pumehana no ke kāwili ʻana, i paʻa pono ai kahi papa o ka asphalt i ka ʻili o nā ʻāpana coke pauda. Ma hope o ka hui ʻana, e wehe i ka paʻi a waiho i ka maʻalili.
Ka manawa hoʻouna: Sep-27-2023