Mhando dzeGraphite Yakakosha

Graphite yakakosha imhando yekuchena kwakanyanya, kuwanda kwakanyanya uye simba rakawandagirafitiYakagadzirwa negirafiti yechisikigo kana yekugadzira mushure mekupisa kwakanyanya uye kugadziriswa kwekumanikidzwa kwakanyanya uye inowanzoshandiswa mumaindasitiri munzvimbo dzinopisa zvakanyanya, kumanikidzwa kwakanyanya uye dzinopisa zvakanyanya.
Inogona kukamurwa kuita mhando dzakasiyana-siyana kusanganisira isostaticmabhuroko egirafiti, zvidimbu zvegrafiti zvakaburitswa, zvakaumbwamabhuroko egirafitiuye yakadederamabhuroko egirafiti.

Tekinoroji dzekugadzira:

Grafitichinhu chisina simbi chakasiyana chinoumbwa nemaatomu ekabhoni akarongwa muchimiro chehexagonal lattice. Chinhu chakapfava uye chinoputsika chinowanzoshandiswa mumaindasitiri akasiyana-siyana nekuda kwehunhu hwacho hwakasiyana. Graphite inogona kuchengetedza simba rayo nekugadzikana kunyangwe pakupisa kunodarika 3600 °C. Zvino regai ndikuudzei maitiro ekugadzira graphite yakakosha.

Graphite inotenderera, yakagadzirwa negrafiti yakachena kwazvo nekudzvanya, chinhu chisingatsiviwi chinoshandiswa mukugadzira maovheni ekristaro imwe chete, macrystallizer esimbi anogadzirwa negrafiti, uye maelectrode egrafiti ekugadzira machinery spark discharge. Kuwedzera kune aya mashandisirwo makuru, inoshandiswa zvakanyanya muminda ye hard alloys (vacuum furnace heaters, sintering plates, nezvimwewo), migodhi (kugadzira ma drill bit molds), indasitiri yemakemikari (heat exchangers, corrosion-resistant parts), metallurgy (crucibles), uye michina (mechanical seals).

Tekinoroji Yekuumba

Nheyo ye tekinoroji ye isostatic pressing yakavakirwa pamutemo waPascal. Inoshandura kudzvanywa kwechinhu nenzira imwe (kana kuti nzira mbiri) kuita kudzvanywa kwenzira dzakawanda (omnidirectional). Munguva yekuita izvi, zvidimbu zvekabhoni zvinogara zviri mumamiriro asina kurongeka, uye huwandu hwevhoriyamu hwakaenzana nehunhu hwe isotropic. Kunze kweizvozvo, haifanirwe kuenderana nekukwirira kwechigadzirwa, zvichiita kuti isostatic graphite isave nemisiyano mishoma pakushanda kwayo.
Zvichienderana netembiricha iyo kugadzirwa uye kuomarara kunoitika, tekinoroji yekudzvanya ye isostatic inogona kukamurwa kuita cold isostatic pressing, warm isostatic pressing, uye hot isostatic pressing. Zvigadzirwa zvekudzvanya zve isostatic zvine density yakakura, kazhinji 5% kusvika 15% yakakwira kupfuura zvigadzirwa zvekudzvanya zve unidirectional kana bidirectional mold. Huwandu hwezvigadzirwa zvekudzvanya zve isostatic pressing hunogona kusvika 99.8% kusvika 99.09%.

Graphite yakaumbwa ine simba guru musimba remakanika, kuramba kukwesha, kuwanda, kuomarara uye kufambisa magetsi uye mashandiro aya anogona kuvandudzwa nekuisa resin kana simbi mumvura.
Graphite yakaumbwa ine simba rakanaka remagetsi, inodzivirira kupisa kwakanyanya, inodzivirira ngura, yakachena, inozvizora, inodzivirira kupisa uye iri nyore kugadzira nemazvo, uye inoshandiswa zvakanyanya muminda yekukanda inoenderera mberi, alloy yakaoma uye electronic die sintering, electric spark, mechanical seal, nezvimwewo.

Tekinoroji Yekuumba

Nzira yekuumba inowanzo shandiswa kugadzira graphite diki yakadzvanywa nechando kana zvigadzirwa zvakagadzirwa zvakanaka. Nheyo ndeyekuzadza huwandu hwakati hwepaste muchimiro nehukuru hunodiwa, wobva waisa kumanikidzwa kubva kumusoro kana pasi. Dzimwe nguva, isa kumanikidzwa kubva kumativi ese kuti udzvanye paste kuti ive chimiro muchimiro. Chigadzirwa chakadzvanywa chinozobviswa, chotonhodzwa, choongororwa, uye chounganidzwa.
Kune michina yekuumba yakatwasuka neyakatwasuka. Nzira yekuumba inowanzo dzvanya chigadzirwa chimwe chete panguva imwe chete, saka ine kushanda kwakaderera pakugadzira. Zvisinei, inogona kugadzira zvigadzirwa zvakanyatsonaka zvisingagone kugadzirwa nemamwe matekinoroji. Uyezve, kushanda kwekugadzira kunogona kuvandudzwa nekudzvanya maforoma akawanda panguva imwe chete uye mitsetse yekugadzira otomatiki.

Graphite yakabviswa inoumbwa nekusanganisa zvidimbu zvegraphite zvakachena zvakanyanya ne binder wozozviburitsa mu extruder. Kana ichienzaniswa ne isostatic graphite, graphite yakabviswa ine saizi yakakura uye simba rakaderera, asi ine thermal uye electrical conductivity yakakwira.
Parizvino, zvigadzirwa zvakawanda zvekabhoni negrafiti zvinogadzirwa nenzira yekubvisa simbi. Zvinonyanya kushandiswa sezvinhu zvinodziya uye zvinhu zvinofambisa kupisa mukupisa kwakanyanya. Pamusoro pezvo, mabhuroko egrafiti anogonawo kushandiswa semaelectrode kuita kutamiswa kwemagetsi mumagetsi. Nokudaro, anoshandiswa zvakanyanya sezvisimbiso zvemakanika, zvinhu zvinofambisa kupisa uye zvinhu zveelectrode munzvimbo dzakanyanya dzakadai sekupisa kwakanyanya, kumanikidzwa kwakanyanya, uye kumhanya kwakanyanya.

Tekinoroji Yekuumba

Nzira yekuburitsa paste ndeyekuisa paste mu paste cylinder yepress woiburitsa. Press yacho ine ring yekuburitsa inotsiviwa (inogona kutsiviwa kuti ichinje chimiro nehukuru hwechigadzirwa) pamberi payo, uye baffle inofambiswa inopihwa pamberi peextrusion ring. Plunger huru yepress iri kuseri kwepaste cylinder.
Usati waisa simba, isa baffle pamberi pemhete yekuburitsa, uye isa simba kubva kune rimwe divi kuti udzvinyirire paste. Kana baffle yabviswa uye simba richiramba richiiswa, paste inoburitswa kubva mumhete yekuburitsa. Cheka strip yakaburitswa kusvika pakureba kwaunoda, itonhore uye uiongorore usati waisa. Nzira yekuburitsa igadziriro yekugadzira inoenderera mberi, zvinoreva kuti mushure mekunge huwandu hwakati hwepaste hwawedzerwa, zvigadzirwa zvakati wandei (graphite blocks, graphite materials) zvinogona kuramba zvichiburitswa.
Parizvino, zvigadzirwa zvakawanda zvekabhoni negrafiti zvinogadzirwa nenzira yekuwedzera.

Graphite yakagwinha ine chimiro chakafanana chine saizi yepakati nepakati. Pamusoro pezvo, inova yakakurumbira zvikuru nekuda kwehuwandu hwayo hushoma hwedota, simba rayo remuchina rakawedzerwa, uye kugadzikana kwakanaka kwemagetsi nekupisa, uye inoshandiswa zvakanyanya pakugadzira workpieces hombe. Inogona zvakare kusimbiswa mushure mekuiswa kwe resin kana kurapwa kwekudzivirira oxidation.
Inoshandiswa zvakanyanya sechinhu chinodziisa & chinodzivirira kupisa mukugadzira ma polysilicon uye monocrystalline silicon furnaces muindasitiri ye photovoltaic. Inoshandiswawo zvakanyanya mukugadzira ma heating hoods, heat exchanger components, melting and casting crucibles, kuvaka ma n nodes anoshandiswa mu electrolytic processes, uye kugadzira ma crucibles ekunyungudutsa nekubatanidza.

Tekinoroji Yekuumba

Nheyo yekugadzira graphite yakazunguzika ndeyekuzadza chiumbwa nemusanganiswa wakaita sepaste, wobva waisa ndiro yesimbi inorema pamusoro payo. Padanho rinotevera, zvinhu zvinobatanidzwa nekuzunguza chiumbwa. Kana zvichienzaniswa negraphite yakaburitswa, graphite inoumbwa nekuzunguzika ine isotropy yakakwira. Zvigadzirwa zvegraphite zvinogadzirwa nenzira yeextrusion.