Carbon kayan samar da tsari ne tam sarrafa tsarin injiniya, samar da graphite lantarki, musamman carbon kayan, aluminum carbon, sabon high-karshen carbon kayan ne ba za a iya rabuwa da yin amfani da albarkatun kasa, kayan aiki, fasaha, management na hudu samar dalilai da alaka mallakar tajirai. fasaha.
Raw kayan su ne mahimman abubuwan da ke ƙayyade ainihin halayen kayan aikin carbon, kuma aikin kayan aiki yana ƙayyade aikin kayan aikin carbon da aka ƙera.Domin samar da UHP da HP graphite lantarki, high quality allura coke ne na farko zabi, amma kuma high quality binder kwalta, impregnating wakili kwalta.Amma kawai kayan albarkatun ƙasa masu inganci, ƙarancin kayan aiki, fasaha, abubuwan gudanarwa da fasaha na mallakar mallaka, kuma ba su iya samar da ingantattun UHP, lantarki na graphite na HP.
Wannan labarin yana mai da hankali kan halayen coke na allura mai inganci don bayyana wasu ra'ayoyi na sirri, don masu kera coke ɗin allura, masana'antar lantarki, cibiyoyin binciken kimiyya don tattaunawa.
Ko da yake samar da coke na allura a masana'antu a kasar Sin ya wuce na kamfanonin waje, ya samu ci gaba cikin sauri cikin 'yan shekarun nan, kuma ya fara yin tasiri.Dangane da jimlar yawan samarwa, yana iya cika buƙatun coke na allura don UHP da na'urorin lantarki na HP graphite waɗanda kamfanonin carbon na cikin gida ke samarwa.Duk da haka, har yanzu akwai wani gibi na ingancin coke na allura idan aka kwatanta da kamfanonin kasashen waje.Canjin aikin batch yana shafar buƙatar coke mai inganci mai inganci a cikin samar da babban girman UHP da lantarki na graphite na HP, musamman ma babu babban coke ɗin allura mai inganci wanda zai iya saduwa da samar da haɗin gwiwar graphite electrode.
Kasashen waje carbon Enterprises samar da manyan bayani dalla-dalla UHP, HP graphite lantarki ne sau da yawa zabi na farko na high quality-man fetur allura coke a matsayin babban albarkatun kasa coke, Japan carbon Enterprises kuma amfani da wasu gawayi jerin allura coke a matsayin albarkatun kasa, amma kawai ga wadannan φ 600 mm bayani dalla-dalla na graphite lantarki samar.A halin yanzu, coke na allura a kasar Sin ya fi girma jerin coke na allura.Samar da babban sikelin UHP graphite electrode da carbon Enterprises sau da yawa dogara a kan shigo da man fetur jerin allura coke, musamman samar da high quality hadin gwiwa tare da shigo da Jafananci Suishima mai jerin allura coke da British HSP man jerin allura coke a matsayin albarkatun kasa coke.
A halin yanzu, coke ɗin allura da kamfanoni daban-daban ke samarwa galibi ana kwatanta shi da ma'aunin aikin kasuwanci na coke ɗin coke na ƙasashen waje ta ma'aunin aikin al'ada, kamar abun ciki na ash, ƙimar gaske, abun cikin sulfur, abun ciki na nitrogen, rabon girman barbashi, ƙimar haɓakar thermal da sauransu. kan.Duk da haka, har yanzu akwai karancin maki daban-daban na rarraba coke na allura idan aka kwatanta da kasashen waje.Saboda haka, samar da allura coke colloquially kuma don "haɗin kai kaya", ba zai iya yin la'akari da sa high quality-premium allura coke.
Baya ga kwatancen aikin na al'ada, kamfanonin carbon ya kamata su kula da halayen coke na allura, irin su rarrabuwa na haɓaka haɓaka haɓakar thermal (CTE), ƙarfin barbashi, digiri na anisotropy, bayanan faɗaɗa a cikin jihar da ba ta hanawa da jihar da aka hana, da kuma kewayon zafin jiki tsakanin haɓakawa da haɓakawa.Domin wadannan thermal Properties na allura coke yana da matukar muhimmanci ga kula da graphitization tsari a cikin samar da tsari na graphite lantarki, ba shakka, da tasiri na thermal Properties na kwalta coke kafa bayan gasa na ɗaure da impregnating wakili kwalta ba a cire.
1. Kwatanta anisotropy na allura coke
(A) Misali: φ 500 mm UHP jikin lantarki na masana'anta na gida;
Raw abu allura coke: Jafananci sabuwar Chemical LPC-U daraja, rabo: 100% LPC-U sa;Nazarin: SGL Griesheim shuka;Ana nuna alamun aiki a cikin Tebur 1.
(B) Misali: φ 450 mmHP jikin lantarki na masana'anta na gida;Raw abu allura coke: a gida factory man allura coke, rabo: 100%;Nazarin: Shandong Bazan Carbon Shuka;Ana nuna alamun aiki a cikin Tebura 2.
Kamar yadda za a iya gani daga kwatanta Table 1 da Table 2, da lPC-U sa na allura coke na sababbin matakan sinadarai na yau da kullum yana da babban anisotropy na kaddarorin thermal, wanda anisotropy na CTE zai iya kaiwa 3.61 ~ 4.55, da kuma Anisotropy na resistivity shima babba ne, yana kaiwa 2.06 ~ 2.25.Bayan ƙarfin sassauci na coke mai allura na cikin gida ya fi na sabon sinadari LPC-U kwal gwargwado na coke na yau da kullun.Darajar anisotropy ya yi ƙasa da na sabon sinadari na yau da kullun LPC-U kwal gwargwado coke coke.
Ultra high iko graphite lantarki samar da anisotropic digiri yi bincike ne kimanta da allura coke albarkatun kasa ingancin ko ba wani muhimmin bincike hanya, girman da mataki na anisotropy, ba shakka, kuma suna da wani tasiri a kan electrode samar tsari, da mataki na anisotropy na wutar lantarki musamman yanayin girgiza mai zafi fiye da matakin anisotropy na matsakaicin ƙarfin ƙaramin lantarki yana da kyau.
A halin yanzu, samar da coke na allurar kwal a kasar Sin ya fi na allurar coke din man fetur girma.Saboda tsadar albarkatun ƙasa da farashin kamfanonin carbon, yana da wahala a yi amfani da coke ɗin allura na cikin gida 100% a cikin samar da lantarki ta UHP, yayin da aka ƙara wani kaso na coke na man petur da graphite foda don samar da lantarki.Saboda haka, yana da wuya a kimanta anisotropy na coke coke na gida.
2. Linear da volumetric Properties na allura coke
Canjin layin layi da juzu'i na coke coke na allura yana nunawa a cikin tsarin graphite da lantarki ke samarwa.Tare da canjin zafin jiki, allurar coke za ta sami madaidaiciyar haɓakawa da haɓaka haɓakawa da haɓakawa yayin aiwatar da aikin graphite dumama sama, wanda kai tsaye yana rinjayar madaidaiciyar canji da volumetric canjin lantarki gasashen billet a cikin tsarin graphite.Wannan ba daidai ba ne don amfani da kaddarorin daban-daban na danyen coke, nau'ikan coke daban-daban na canje-canjen allura.Haka kuma, yanayin zafi na layin layi da canjin girma na maki daban-daban na coke coke na allura da kuma man petroleum coke shima ya bambanta.Ta hanyar ƙware wannan sifa ta danyen coke ne kaɗai za mu iya sarrafa da haɓaka samar da jerin sinadarai masu graphite.Wannan yana bayyana musamman a cikin tsarin zane-zane.
Tebu na 3 yana nuna sauye-sauyen madaidaiciya da girma da kuma yanayin zafi na maki uku na coke na allurar man fetur wanda Conocophillips ya samar a Burtaniya.Fadada layin layi yana faruwa da farko lokacin da coke ɗin allurar mai ya fara zafi, amma zafin jiki a farkon ƙanƙanwar layin yawanci yana bayan matsakaicin zafin ƙima.Daga 1525 ℃ zuwa 1725 ℃, mikakke fadada fara, da kuma zafin jiki kewayon dukan mikakke kwangila ne kunkuntar, kawai 200 ℃.Matsakaicin zafin jiki na duka layin ɗan gajeren lokaci na coke na man fetur na yau da kullun ya fi girma fiye da na allurar coke, kuma coke ɗin coal ɗin yana tsakanin su biyun, ya ɗan fi girma fiye da coke ɗin man.Sakamakon gwaji na Cibiyar Gwajin Fasaha ta Masana'antu ta Osaka a Japan ya nuna cewa mafi munin yanayin zafi na Coke, mafi girman layin raguwar zafin jiki, har zuwa 500 ~ 600 ℃ layin raguwar zafin jiki, kuma farkon yanayin raguwar layin ya yi ƙasa kaɗan. , a 1150 ~ 1200 ℃ fara faruwa line shrinkage, wanda kuma shi ne halaye na talakawa jinkirta man coke.
Mafi kyawun kaddarorin thermal kuma mafi girman anisotropy na coke na allura, da kunkuntar kewayon zafin jiki na ƙanƙantar layi.Wasu coke mai inganci mai inganci kawai 100 ~ 150 ℃ kewayon ƙanƙancewar zafin jiki.Yana da matukar fa'ida ga kamfanonin carbon don jagorantar samar da tsari na graphitization bayan fahimtar halaye na faɗaɗa layin layi, ƙanƙancewa da sake faɗaɗa nau'ikan coke mai ɗanɗano daban-daban, wanda zai iya guje wa wasu samfuran sharar gida mara amfani waɗanda ba dole ba ne ta hanyar amfani da yanayin ƙwarewar gargajiya.
3 ƙarshe
Jagora daban-daban halaye na albarkatun kasa, zabi m kayan aiki matching, mai kyau hade da fasaha, da sha'anin management ne mafi kimiyya da m, wannan jerin dukan tsari tsarin tam sarrafawa da kuma barga, za a iya ce da tushen samar high- ingancin matsananci-high iko, high ikon graphite lantarki.
Lokacin aikawa: Dec-30-2021