Isostatic ịpị graphitebụ ụdị ihe osise graphite ọhụrụ emepụtara na 1960, nke nwere usoro ihe mara mma. Dị ka ihe atụ, isostatic pressing graphite nwere ezigbo okpomọkụ na-eguzogide. Na ikuku inert, ike ọrụ ya ọ bụghị naanị na ọ naghị ebelata na mmụba nke okpomọkụ, kamakwa ọ na-abawanye, na-eru uru ya kachasị elu na gburugburu 2500 ℃; E jiri ya tụnyere graphite nkịtị, usoro ya dị mma ma dị oke, na ịdị n'otu ya dị mma; Ọnụ ọgụgụ nke mgbasawanye ọkụ dị oke ala ma nwee nguzogide ujo dị mma; Isotropic; Kemịkalụ siri ike na-eguzogide corrosion, ezigbo thermal na conductivity eletrik; Nwere ezigbo n'ibu nhazi arụmọrụ.
Ọ bụ kpọmkwem n'ihi ọmarịcha arụmọrụ ya ka a na-eji graphite isostatic pressing graphite eme ihe n'ọtụtụ ebe na mpaghara dị ka metallurgy, kemịkalụ, eletriki, ikuku ikuku, na ụlọ ọrụ ike atomiki. Ọzọkwa, na mmepe nke sayensị na teknụzụ, mpaghara ngwa na-agbasawanye mgbe niile.
Usoro mmepụta nke isostatic ịpị graphite
A na-egosi usoro mmepụta nke isostatic pressing graphite na Figure 1. O doro anya na usoro mmepụta nke isostatic pressing graphite dị iche na nke electrodes graphite.
Isostatic ịpị graphite chọrọ akụrụngwa isotropic structurally, nke kwesịrị ịkwatu ka ọ bụrụ ntụ ntụ dị mma. Cold isostatic pressing technology chọrọ ka etinyere ya n'ọrụ, oge ịsa nri na-adị ogologo ogologo. Iji nweta njupụta ebumnuche, achọrọ ọtụtụ okirikiri ịhịa aka n'ahụ, na okirikiri graphitization dị ogologo karịa nke graphite nkịtị.
Ụzọ ọzọ maka imepụta graphite nke isostatic bụ iji mesophase carbon microspheres dị ka akụrụngwa. Nke mbụ, a na-edobe microspheres mesophase carbon na ọgwụgwọ oxidation stabilization na okpomọkụ dị elu, na-esote isostatic pressing, na-esote calcination na graphitization ọzọ. Ewebataghị usoro a n'isiokwu a.
1.1 Akụrụngwa
The akụrụngwa maka imepụta isostatic pressing graphite gụnyere mkpokọta na ihe nchikota. A na-ejikarị petroleum coke na coke asphalt eme ihe, yana asphalt coke n'ala. Dịka ọmụmaatụ, usoro AXF isostatic graphite bụ nke POCO mepụtara na United States sitere na coke asphalt n'ala Gilsontecoke.
Iji dozie arụmọrụ ngwaahịa dịka ojiji dị iche iche si dị, a na-ejikwa carbon ojii na graphite artificial dị ka mgbakwunye. N'ozuzu, mmanụ ala coke na asphalt coke kwesịrị ka a calcined na 1200 ~ 1400 ℃ wepụ mmiri mmiri na agbanwe okwu tupu eji.
Agbanyeghị, iji kwalite akụrụngwa akụrụngwa na njupụta nke ngwaahịa, enwekwara mmepụta nke isostatic pressing graphite site na iji akụrụngwa dị ka coke. Ihe e ji mara coking bụ na ọ nwere ihe na-agbanwe agbanwe, nwere ihe na-eme ka ọ na-emekọ ihe, na-agbasawanye ma na-arụkọ ọrụ ọnụ na coke. Onye na-ekekọta ihe na-ejikarị ụda coal tar, na dị ka ọnọdụ akụrụngwa dị iche iche na usoro chọrọ nke ụlọ ọrụ ọ bụla, ebe a na-eme ka ọ dị nro nke coal tar pitch na-eji sitere na 50 ℃ ruo 250 ℃.
Arụ ọrụ nke isostatic pressing graphite na-emetụta nke ukwuu site na akụrụngwa akụrụngwa, na nhọrọ nke akụrụngwa bụ isi njikọ na-emepụta ngwaahịa ikpeazụ achọrọ. Tupu inye nri, a ga-enyocharịrị njirimara na ịdị n'otu nke akụrụngwa akụrụngwa.
1.2 Na-egweri
A na-achọkarị mkpokọta mkpokọta graphite isostatic iji ruo n'okpuru 20um. Ka ọ dị ugbu a, graphite nke isostatic pressing kacha nụchara anụcha nwere dayameta kacha nke 1 μm. Ọ dị gịrịgịrị.
Iji gwekọta coke n'ime ntụ ntụ dị mma, a chọrọ ihe nhịhịa dị oke mma. Na-egweri na nkezi urughuru nke 10-20 μ Uzuzu nke m chọrọ iji igwe igwe kwụ ọtọ, na nkezi nke ihe na-erughị 10 μ Uzuzu nke m chọrọ iji igwe ikuku ikuku.
1.3 Ịgwakọta na igwakorita
Tinye ntụ ntụ na coal tar pitch ihe nkedo n'ụzọ kwesịrị ekwesị n'ime igwe na-ekpo ọkụ maka igwakorita, nke mere na oyi akwa nke asphalt na-ejikọta ya na elu nke ntụ ntụ coke. Mgbe igwakọtachara, wepụ ihe nkedo ahụ ma hapụ ya ka ọ dị jụụ.
Oge nzipu: Sep-27-2023