1.4 Egweri nke abụọ
A na-egwepịa ihe ntanye ahụ, gbanye ya ma sie ya ka ọ bụrụ irighiri ihe dị ka iri iri ruo ọtụtụ narị micrometer n'ịdị elu tupu a gwakọta ya nke ọma.A na-eji ya dị ka ihe eji eme ihe, nke a na-akpọ ntụ ntụ.Ngwa maka egweri nke abụọ na-ejikarị igwe igwe kwụ ọtọ ma ọ bụ igwe igwe bọọlụ.
1.5 Ịmepụta
N'adịghị ka ndị nkịtị extrusion na ịkpụzi,isostatic ịpị graphiteA na-etolite site na iji teknụzụ ịpị oyi isostatic (Fig 2).Jupụta ntụ ntụ akụrụngwa n'ime ihe rọba, ma kpakọba ntụ ntụ site na ịma jijiji eletrọnịkị dị elu.Mgbe akarachara, kpochapu ihe ndị ahụ ntụ ntụ ka ikuku dị n'etiti ha kwụsị.Tinye ya n'ime akpa nrụgide dị elu nwere mgbasa ozi mmiri dị ka mmiri ma ọ bụ mmanụ, gbanye ya na 100-200MPa, ma pịa ya na ngwaahịa cylindrical ma ọ bụ akụkụ anọ.
Dị ka ụkpụrụ Pascal si kwuo, a na-etinye nrụgide na ihe eji eme rọba site na mmiri mmiri dị ka mmiri, na nrụgide ahụ hà nhata n'akụkụ niile.N'ụzọ dị otú a, ihe ndị ahụ ntụ ntụ adịghị adabere na ntụziaka ndochi na ebu, ma a na-ejikọta ya na nhazi oge.Ya mere, ọ bụ ezie na graphite bụ anisotropic na crystallographic Njirimara, n'ozuzu, ndị isostatic ịpị graphite bụ isotropic.Ngwaahịa ndị a kpụrụ ọ bụghị nanị na ha nwere ọdịdị cylindrical na akụkụ anọ, kamakwa cylindrical na crucible shapes.
A na-ejikarị igwe na-akpụzi ihe nke isostatic eme ihe na ụlọ ọrụ nchara ntụ ntụ.N'ihi ọchịchọ nke ụlọ ọrụ dị elu dị ka ikuku ikuku, ụlọ ọrụ nuklia, alloys siri ike, na electromagnetic voltaji dị elu, mmepe nke isostatic pressing technology bụ ngwa ngwa ngwa ngwa, ma nwee ike ịmepụta igwe oyi oyi isostatic igwe na-arụ ọrụ cylinder. n'ime dayameta nke 3000mm, a elu nke 5000mm, na a kacha arụ ọrụ mgbali nke 600MPa.Ka ọ dị ugbu a, nkọwapụta kachasị nke igwe igwe oyiri isostatic oyi ejiri na ụlọ ọrụ carbon maka imepụta graphite nke isostatic bụ Φ 2150mm × 4700mm, yana oke nrụgide ọrụ nke 180MPa.
1.6 Ime
N'oge a na-eri nri, mmeghachi omume kemịkalụ dị mgbagwoju anya na-eme n'etiti nchịkọta na ihe nkedo, na-eme ka onye na-ekekọta ihe na-emebi ma hapụ nnukwu ihe na-agbanwe agbanwe, ma na-enwekwa mmeghachi omume condensation.N'oge okpomọkụ dị ala na-ekpo ọkụ, ngwaahịa raw na-agbasawanye n'ihi ikpo ọkụ, na n'ime usoro ikpo ọkụ na-esote, olu na-ebelata n'ihi mmeghachi omume condensation.
Ọnụ ọgụgụ dị ukwuu nke ngwaahịa raw, otú ahụ ka ọ na-esikwu ike ịhapụ ihe na-agbanwe agbanwe, na elu na ime nke ngwaahịa ahụ na-enwekarị ọdịiche dị n'etiti okpomọkụ, mgbasawanye ọkụ na-adịghị mma na nkwekọrịta, nke nwere ike iduga mgbawa na ngwaahịa raw.
N'ihi usoro ya dị mma, graphite nke isostatic na-achọ usoro ịsa nri ngwa ngwa, na ọnọdụ okpomọkụ dị n'ime ọkụ ahụ kwesịrị ịdị n'otu, karịsịa n'oge okpomọkụ ebe a na-ewepụ ngwa ngwa asphalt.Ekwesịrị iji nlezianya mee usoro kpo oku, yana ọkụ ọkụ adịghị agafe 1 ℃ / h na ọdịiche dị n'ime ọkụ nke ihe na-erughị 20 ℃.Usoro a na-ewe ihe dịka ọnwa 1-2.
1.7 Ime ime
N'oge a na-asa anụ, a na-ewepụ ihe na-agbanwe agbanwe nke coal tar pitch.A na-ahapụ pores dị mma na ngwaahịa ahụ n'oge nkwụsị gas na mbelata olu, ihe fọrọ nke nta ka ọ bụrụ ihe niile bụ oghere oghere.
Iji meziwanye njupụta olu, ike n'ibu, conductivity, thermal conductivity, na nguzogide kemịkalụ nke ngwaahịa ahụ, enwere ike iji usoro impregnation nrụgide, nke gụnyere itinye oghere coal tar n'ime ime ngwaahịa ahụ site na oghere oghere.
Ngwaahịa ahụ kwesịrị ibu ụzọ kpoo ọkụ, wee kpochaa ya ma kpochaa ya na tank impregnation.Mgbe ahụ, a na-agbakwunye asphalt coal a gbazere na tank nke impregnation ma tinye ya ka ọ kwe ka asphalt nke na-emepụta ihe na-abanye n'ime ime ngwaahịa ahụ.Ọtụtụ mgbe, graphite nke isostatic na-enweta ọtụtụ okirikiri nke ịsa nri impregnation.
1.8 eserese
Kpoo ngwaahịa a gbanyere ọkụ ruo ihe dị ka 3000 ℃, dozie lattice nke carbon carbon n'usoro n'usoro, ma mezue mgbanwe site na carbon gaa na graphite, nke a na-akpọ graphitization.
Ụzọ graphitization gụnyere usoro Acheson, usoro njikọ ọkụ dị n'ime, usoro ntinye ugboro ugboro, wdg. Usoro Acheson na-emekarị na-ewe ihe dịka ọnwa 1-1.5 maka ngwaahịa a ga-ebu ma wepụ ya na ọkụ.Ọkụ ọ bụla nwere ike ijikwa ọtụtụ tọn ruo ọtụtụ tọn ngwaahịa a ṅara n'ọkụ.
Oge nzipu: Sep-29-2023