Graphitized Petroleum Coke: "Mfumu" Pakati pa Othandizira Carburizing

Coke ya petroleum yokhala ndi grafiti imaonedwa ngati "mfumu" pakati pa zinthu zopangira carburizing makamaka chifukwa cha kuyera kwake kwakukulu, kunyezimira kwakukulu, kuchuluka kwa kuyamwa bwino, komanso kukhazikika, zomwe zikuwonetsa phindu losasinthika m'magawo osiyanasiyana monga zitsulo, kupanga zinthu za graphite, ndi makampani ankhondo. Kusanthula kotsatiraku kumachitika kuchokera ku magawo atatu: makhalidwe ofunikira, ubwino wa njira, ndi zochitika zogwiritsidwa ntchito.

I. Makhalidwe Abwino: "Majini Achifumu" a Graphitized Petroleum Coke

Kuyera Kwambiri ndi Zodetsa Zochepa

Mafuta a petroleum coke opangidwa ndi grafiti amachizidwa ndi grafiti yotenthetsera kwambiri pa kutentha kwa 2200 - 2600℃, komwe kumachotsa zinyalala zambiri monga sulfure, nayitrogeni, ndi phulusa. Kaboni yake yokhazikika imakhala yokwera kufika pa 80% - 92%, ndipo sulfure imakhala yotsika kufika pa ≤0.1% ndi nayitrogeni imakhala yotsika kufika pa ≤0.5%. Khalidwe loyera kwambiri limeneli limatsimikizira kuti silibweretsa zinthu zovulaza panthawi ya carburizing, zomwe zimapangitsa kuti chitsulo chikhale cholimba kwambiri. Mwachitsanzo, popanga zitsulo, sulfure yochepa imatha kuchepetsa "kufooka kwa kutentha" ndikuwonjezera kukana kwa chitsulo komanso kukana kukhudza.

Kukongola Kwambiri ndi Kukhazikika

Njira yopangira graphitization imakonza maatomu a kaboni kukhala kapangidwe ka graphite kokhazikika, ndikupanga kapangidwe ka crystallinity yapamwamba. Kapangidwe kameneka kamakhala kokhazikika kwambiri kutentha kwambiri ndipo sikumawola kwambiri, zomwe zimapangitsa kuti carburization ikhale yogwira mtima kwa nthawi yayitali. Mosiyana ndi zimenezi, petroleum coke yosagwiritsidwa ntchito imawola mosavuta kutentha kwambiri, zomwe zimapangitsa kuti mpweya usamayamwe bwino.

Kapangidwe ka Matumbo ndi Kuchitapo Kanthu Kwambiri

Koke ya petroleum yokhala ndi graphitized ili ndi kapangidwe kake kokhala ndi mabowo okhala ndi malo akuluakulu apadera, zomwe zimathandiza kuti igwirizane mwachangu ndi kuwonongeka mu chitsulo kapena chitsulo chosungunuka kuti ipange ma nuclei, zomwe zimapangitsa kuti mpweya uyambe kuyamwa mofulumira. Deta yoyesera ikuwonetsa kuti mphamvu yake yoyamwa ndi yofanana ndi ya zinthu zoyeretsera malasha zomwe zimakhala ndi mpweya woposa 90%, koma ili ndi liwiro lachangu lochitapo kanthu, zomwe zingafupikitse nthawi yosungunula ndi 10% - 15%, zomwe zimapangitsa kuti mphamvu zisungidwe bwino komanso kuchepetsa kugwiritsa ntchito mphamvu.

II. Ubwino wa Njira: Kusandutsa Mwala Kukhala Golide Kudzera mu Chithandizo cha Graphitization

Kukonzekera kwa Mapangidwe a Maselo

Chithandizo cha graphitization chimakulitsa malo pakati pa maatomu a kaboni, ndikupanga kapangidwe ka kristalo ka hexagonal komwe kamakhala koyenera kuwonongeka. Kapangidwe kameneka kamatha kutulutsa maatomu a kaboni mwachangu mu iron melts, zomwe zimapangitsa kuti graphite ipangidwe komanso kusintha mawonekedwe a graphite a chitsulo chopangidwa (monga kuwonjezera kuchuluka kwa spheroidal graphite), motero kumawonjezera mphamvu zamakina komanso kuthekera kwa ma castings.

Kugwirizana pakati pa Mtengo ndi Kugwira Ntchito Mwanzeru

Ngakhale kuti chithandizo cha graphitization chimafuna kugwiritsa ntchito mphamvu kutentha kwambiri, kuchuluka kwake koyamwa komanso kukhazikika kwake kumatha kuchepetsa kuchuluka kwa mankhwala ophera carburizing omwe amagwiritsidwa ntchito (nthawi zambiri 20% - 30% kuchepera kuposa mankhwala ophera carburing okhala ndi malasha) ndikuchepetsa kutayika kwa nthawi yogwira ntchito komwe kumachitika chifukwa cha kusintha mobwerezabwereza kwa zinthu zomwe zili m'zigawo. Pakapita nthawi, mtengo wonse umakhala wotsika, ndipo ukhoza kupititsa patsogolo bwino mtundu wa mankhwala.

III. Zochitika Zogwiritsira Ntchito: "Wosewera Wonse" kuyambira pa Metallurgy mpaka High Technology

Makampani Ogulitsa Zitsulo: Chitsimikizo Chachiwiri cha Carburization ndi Kukweza Ubwino

• Kupanga Zitsulo: Mwa kuwonjezera kuchuluka kwa chitsulo chotsala ndi kuchepetsa kugwiritsa ntchito chitsulo cha nkhumba, kuphatikiza ndi carburization pogwiritsa ntchito graphitized petroleum coke, mtengo wa castings ukhoza kuchepetsedwa ndi 10% - 20%, pomwe ukukweza chiyero ndi mphamvu zamakina za chitsulo.
• Kuponya: Kumawonjezera mawonekedwe a graphite ndi mtundu wa nodularity, kukulitsa moyo wa ntchito ya kuponya. Mwachitsanzo, poponya ma cylinder blocks a injini yagalimoto, kugwiritsa ntchito graphitized petroleum coke kumatha kuwonjezera kukana kutopa kwa kuponya ndi 15% - 20%.

Kupanga Zinthu za Graphite: Mwala Wapangodya wa Zipangizo Zapamwamba

Graphitized petroleum coke ndi chinthu chofunikira kwambiri popanga ma cathode blocks akuluakulu, ma carbon electrodes, ma graphitized electrodes, ndi ma electrode pastes apamwamba. Kuyera kwake kwakukulu komanso crystallinity yake yayikulu zimatha kukwaniritsa zosowa za uvuni zamafakitale zomwe zikukula kukhala zazikulu komanso zazikulu kwambiri, kuchepetsa kutayika kwa okosijeni kutentha kwambiri ndikuwonjezera nthawi yogwirira ntchito ya zida.

Makampani Ankhondo: Wosewera Wotheka pa Zida Zoteteza Zipolopolo

Daimondi yakuda (daimondi yachilengedwe ya polycrystalline) imaonedwa kuti ndi chinthu cha ceramic chamtsogolo chotchinga zida zoboola zida chifukwa cha kuuma kwake kwakukulu (kwachiwiri pambuyo pa dayimondi ndi boron nitride) komanso kukhuthala kochepa (2.52 g/cm³). Coke ya petroleum yokhala ndi graphitized, kudzera mu processing yozama, imatha kusintha pang'ono dayimondi yakuda popanga zinthu zokhazikika za zida zankhondo, kuchepetsa kudalira zinthu zosowa.

Magawo Ena Amafakitale: "Zinthu Zothandizira Padziko Lonse" Zogwiritsira Ntchito Pamalire

• Makampani Opanga Mankhwala: Amagwira ntchito ngati chochepetsera, chopopera mankhwala ochepetsa, komanso choletsa kupangika kwa zinthu zotupa.
• Makampani Opanga Zamagetsi: Amagwiritsidwa ntchito popanga maburashi a kaboni, kukonza mphamvu yamagetsi komanso kukana kuwonongeka.
• Makampani Opanga Mabatire: Amagwiritsidwa ntchito popanga zinthu zama electrode kuti awonjezere kuchuluka kwa mphamvu ndi moyo wa kuzungulira.
• Makampani Opanga Makina: Amagwira ntchito ngati mafuta ochepetsa kutayika kwa kukangana.

Kutsiliza: "Njira Yachifumu" ya Graphitized Petroleum Coke

Chokoleti cha petroleum chopangidwa ndi grafiti chakhazikitsa muyezo pa ntchito zoyeretsera mafuta ndi mphamvu zake zapadera zakuthupi ndi zamakemikolo. Sikuti chimangothetsa mavuto a kuchuluka kwa zinthu zodetsedwa komanso kuchepa kwa kuyamwa kwa zinthu zachikhalidwe zoyeretsera mafuta komanso chimalimbikitsa kukweza zinthu mu zitsulo, kupanga zinthu za graphite, ndi makampani ankhondo kudzera mu kulimba kwake kwakukulu komanso kukhazikika. Chifukwa cha kufunikira kwakukulu kosunga mphamvu, kuchepetsa utsi, komanso kupanga zinthu zapamwamba, "udindo wachifumu" wa chokoleti cha petroleum chopangidwa ndi grafiti udzawonjezeredwa, zomwe zimapangitsa kuti chikhale "diamondi yakuda" yofunika kwambiri pakukweza mafakitale.