Upfu hwegrafiti hunoshandiswa sema electrode egrafiti hune zvakanakira zvakawanda. Zvisinei, nzira yekuratidza zvakanakira zvechinhu ichi, kugadzirisa mashandiro, kuderedza mitengo uye kuwedzera makwikwi emusika, izvi hazvisi nyaya dzevagadziri vegrafiti chete, asiwo matambudziko ayo vashandisi vegrafiti vanofanira kufunga nezvawo zvakakomba. Saka, pakushandisa zvinhu zvegrafiti, ndeapi matambudziko anofanira kutanga agadziriswa?
Kubviswa kweguruva: Nekuda kwechimiro chegrafiti chidiki, guruva rakawanda rinogadzirwa panguva yekugadzira michina, izvo zvine simba guru pamamiriro emufekitori. Pamusoro pezvo, simba reguruva pamidziyo rinonyanya kuratidzwa nekukanganisa kwayo pamagetsi emidziyo. Nekuda kwekushanda zvakanaka kwegrafiti, kana yangopinda mubhokisi remagetsi, inowanzo kukonzera magetsi mapfupi nezvimwe zvikanganiso. Naizvozvo, zvinokurudzirwa kuti ive nemuchina wekugadzirisa graphite wakakosha wekugadzirisa. Zvisinei, nekuda kwemari yakawanda yekudyara yemidziyo yekugadzira graphite, mabhizinesi mazhinji anongwarira zvakanyanya panyaya iyi. Mumamiriro ezvinhu akadaro, mhinduro dzinoverengeka dzinotevera dzinogona kushandiswa:
Kushandiswa kwema electrode eGraphite kunze kwenyika: Nekushandiswa kuri kuramba kuchikura kwe graphite muindasitiri yema mold, makambani akawanda ekugadzira zvibvumirano zvemold (OEM) akaunzawo bhizinesi reOEM rema electrode egraphite.
Mushure mekunyudzwa kwemafuta: Mushure mekutenga graphite, inotanga yanyikwa mumafuta espark kwenguva yakati (nguva yakatarwa inoenderana nehuwandu hwegraphite), uye yozoiswa panzvimbo yekugadzira michina. Nenzira iyi, guruva regraphite harizobhururuke asi richadonha pasi. Izvi zvinoderedza kukanganisa pamidziyo nenzvimbo.
Kugadzirisa nzvimbo yekugadzira michina: Iyo inonzi shanduko inonyanya kusanganisira kuisa muchina wekuchenesa vacuum panzvimbo yekugadzira michina yakajairika.
Mukana wekubuda kwemvura panguva yekugadzirisa graphite: Kusiyana nemhangura, nekuda kwekukurumidzira kwekubuda kwe graphite electrodes, slag yakawanda yekugadzirisa inoora panguva imwe neimwe. Maitiro ekubvisa slag zvinobudirira anova dambudziko. Saka, zvinodikanwa kuti mukana wekubuda kwemvura uve mukuru kupfuura wemhangura. Kazhinji, pakuisa mukana wekubuda kwemvura, mukana wekubuda kwe graphite wakakura ne10 kusvika 30% kupfuura wemhangura.
Kunzwisisa kwakarurama zvikanganiso zvayo: Kunze kweguruva, graphite ine zvimwe zvinokanganisa. Semuenzaniso, pakugadzira magirazi pamusoro pema molds, zvichienzaniswa nema electrodes emhangura, ma electrodes e graphite haawanzo kuwana mhedzisiro inodiwa. Kuti uwane mhedzisiro iri nani pamusoro, saizi yepamusoro ye graphite inofanira kusarudzwa, uye mutengo werudzi urwu rwe graphite unowanzo pfuura ka4 kusvika ka6 pane we graphite yakajairika. Pamusoro pezvo, kushandiswazve kwe graphite kwakaderera. Nekuda kwemaitiro ekugadzira, chikamu chidiki che graphite chinogona kushandiswa pakuberekazve nekushandisa. Marara graphite mushure mekugadzirwa kwemagetsi haagone kushandiswazve parizvino, nokudaro zvichikonzera mamwe matambudziko kukutarisira nharaunda kwemabhizinesi. Panyaya iyi, tinogona kupa vatengi mukana wekushandisazve marara graphite mahara kuti vasakonzere matambudziko ekuchengetedzwa kwezvakatipoteredza.
Kupwanya machipisi mukugadzirwa kwemuchina: Sezvo graphite ichipfava kupfuura mhangura, kana graphite ikagadziriswa nenzira imwecheteyo nema electrodes emhangura, zviri nyore kukonzera kupwanya kwema electrodes, kunyanya pakugadzira ma electrodes ane ribbed thin-ribbed. Panyaya iyi, rutsigiro rwehunyanzvi rwemahara runogona kupihwa kune vagadziri vema mold. Izvi zvinonyanya kuwanikwa kuburikidza nekusarudza maturusi ekucheka, nzira yekufambisa maturusi, uye kugadzirisa zvine musoro ma parameter ekugadzirisa. Samples dze graphite dze natural flake dzakagadzirwa nekudzvanya kwakadzika pasina binder uchishandisa natural flake graphite. Mhedzisiro yekuchinja mukugadzira kudzvanya uye nguva yekubata kudzvanya pa density, porosity uye flexural strength yemasampuli yakadzidzwa zvakateerana. Hukama huripo pakati pe microstructure uye flexural strength yemasampuli e natural flake graphite hwakaongororwa zvine hunhu. Masisitimu maviri, boric acid - urea uye tetraethyl silicate - acetone - hydrochloric acid, akasarudzwa kuti adzidze nekukurukura nezve antioxidant properties uye mashandiro e natural graphite powder uye natural graphite electrode samples vasati vatora uye vatora antioxidant treatment. Zviri mukati meongororo huru nemigumisiro ndeizvi: Kushanda kwekugadzira kwegirafiti yechisikigo uye pesvedzero yemamiriro ekugadzira pa microstructure uye hunhu zvakadzidzwa. Zvakabuda zvinoratidza kuti kana kumanikidzwa kukuru kwegirafiti yechisikigo, density uye flexural strength yemuenzaniso inowedzera, ukuwo porosity yemuenzaniso ichiderera. Nguva yekumanikidzwa inobata haina simba guru pa density yemuenzaniso. Kana inopfuura maminetsi mashanu, kuumbwa kwemuenzaniso kunova nani. Simba reflexural rinoratidza anisotropy yakajeka, uye avhareji ye flexural strengths munzira dzakasiyana i5.95MPa, 9.68MPa, uye 12.70MPa zvichiteerana. Anisotropy ye flexural strength yakabatana zvakanyanya ne microstructure yegirafiti.
Hunhu hwe antioxidant hwe boron-nitrogen system yakagadzirwa nenzira yekugadziriswa uye nzira yekugadziriswa uye natural flake graphite powder yakafukidzwa ne silica sol isati yatanga uye yapera zvakadzidzwa. Zvakabuda zvinoratidza kuti sezvo huwandu hwe impregnations huchiwedzera, huwandu hwe silica sol uye boron-nitrogen system yakafukidzwa pamusoro pe graphite powder hunowedzera, uye hunhu hwe antioxidant hunova nani. Tembiricha yekutanga ye oxidation ye natural flake graphite i883K, uye chiyero chekurasikirwa nehuremu hwe oxidation pa 923K i407.6mg/g/h. Graphite powder yakanyudzwa kapfumbamwe zvakateerana mu boric acid - urea system uye ethyl silicate - ethanol - hydrochloric acid system. Mushure mekupisa kweawa imwe pasi pemhepo ye1273K neN2, chiyero chekurasikirwa nehuremu hwe oxidation ye natural flake graphite pa 923K chaive 47.9 mg/g/h uye 206.1mg/g/h zvakateerana. Mushure mekupisa kweawa imwe chete mumhepo dzeN2 dze1973K ne1723K zvichiteerana, mwero wekurasikirwa nehuremu hweoxidation ye natural flake graphite pa923K waive 3.0mg /g/h uye 42.0mg/g/h zvichiteerana; Masisitimu ese ari maviri anogona kuderedza mwero wekurasikirwa nehuremu hweoxidation ye natural flake graphite, asi mhedzisiro ye antioxidant ye boric acid - urea system iri nani pane ye ethyl silicate - ethanol - hydrochloric acid system.
Ma electrode e graphite anonyanya kushandiswa mumaindasitiri makuru akadai sekugadzira simbi muchoto chemagetsi, kugadzirwa kwe phosphorus muchoto cheore, kunyungudika kwejecha re magnesia nemagetsi, kugadzirira kunyungudika kwemagetsi kwezvinhu zvinoramba kushanda, electrolysis yealuminium, uye kugadzirwa kwe phosphorus, silicon, uye calcium carbide muindasitiri. Ma electrode e graphite akakamurwa kuita mhando mbiri: ma electrode e graphite echisikigo uye ma electrode e graphite echisikigo. Kana tichienzanisa nema electrode e graphite echisikigo, ma electrode e graphite echisikigo haadi maitiro e graphite chemical. Nekuda kweizvozvo, kutenderera kwekugadzirwa kwema electrode e graphite echisikigo kunoderedzwa zvakanyanya, kushandiswa kwesimba nekusvibiswa kunodzikira zvakanyanya, uye mitengo inodzikira zvakanyanya. Ane zvakanakira zviri pachena pamitengo uye mabhenefiti ehupfumi, inova imwe yezvikonzero zvikuru zvekuvandudzwa kwema electrode e graphite echisikigo.
Pamusoro pezvo, maelectrode egirafiti yechisikigo zvigadzirwa zvakakosha zvakagadziriswa zvakadzama zvegirafiti yechisikigo uye zvine kukosha kukuru kwekugadzirwa uye kushandiswa. Zvisinei, mashandiro ekuumba, kuramba oxidation uye hunhu hwemakanika emaelectrode egirafiti yechisikigo parizvino zvakaderera pane zvemaelectrode egirafiti ekugadzira, inova ndiyo chipingamupinyi chikuru pakukura kwawo. Nokudaro, kukunda zvipingamupinyi izvi ndicho chinhu chikuru pakuvandudza kushandiswa kwemaelectrode egirafiti yechisikigo.
Hunhu hwe antioxidant hwe boron-nitrogen system yakagadzirwa nenzira yekugadziriswa uye nzira yekugadziriswa uye mabhuroko e natural flake graphite akaputirwa ne silica sol vasati vasvika uye vapedza zvakadzidzwa. Zvakabuda zvinoratidza kuti hunhu hwe antioxidant hwe natural graphite blocks dzakaputirwa ne silica sol hunova hwakaipa sezvo huwandu hwe impregnations huchiwedzera. Mabhuroko e natural graphite akaputirwa ne boron-nitrogen system ane hunhu huri nani hwe antioxidant sezvo huwandu hwe impregnations huchiwedzera. Mwero wekurasikirwa kwehuremu hwe oxidation yemabhuroko e natural graphite pa 923K ne 1273K waiva 122.432mg/g/h uye 191.214mg/g/h, zvichiteerana. Mabhuroko e natural graphite akaputirwa kapfumbamwe zvichiteerana mu boric acid - urea system uye ethyl silicate - ethanol - hydrochloric acid system. Mushure mekupisa kweawa imwe chete mumhepo ye1273K neN2, mwero wekurasikirwa nehuremu hweoxidation pa923K waive 20.477mg/g/h uye 28.753mg/g/h, zvichiteerana. Pa1273K, vaive 37.064mg/g/h uye 54.398mg/g/h zvichiteerana; Mushure mekurapwa pa1973K ne1723K zvichiteerana, mwero wekurasikirwa nehuremu hweoxidation yemabhuroko egirafiti yechisikigo pa923K waive 8.182 mg/g/h uye 31.347mg/g/h zvichiteerana; Pa1273K, vaive 126.729mg/g/h uye 169.978mg/g/h zvichiteerana; Masisitimu ese ari maviri anogona kuderedza zvakanyanya mwero wekurasikirwa nehuremu hweoxidation yemabhuroko egirafiti yechisikigo. Saizvozvowo, simba rekudzivirira muviri re boric acid - urea system rinokunda re ethyl silicate - ethanol - hydrochloric acid system.
Nguva yekutumira: Chikumi-12-2025