Isostatic graphite, yomwe imadziwikanso kuti graphite isostatically, imatanthawuza njira yomwe chisakanizo cha zinthu zopangira chimakanizidwa kukhala midadada yamakona anayi kapena yozungulira mu dongosolo lotchedwa cold isostatic pressing (CIP). Cold isostatic pressing ndi njira yopangira zinthu momwe kusintha kwamphamvu kwamadzi otsekeka, osasunthika kumapatsirana mosasinthasintha ku gawo lililonse lamadzimadzi, kuphatikiza pamwamba pa chidebe chake.
Poyerekeza ndi njira zina monga extrusion ndi kugwedera kupanga, CIP luso umapanga isotropic kupanga graphite kwambiri.Isostatic graphiteilinso ndi kakulidwe kakang'ono kwambiri ka graphite (pafupifupi ma microns 20).
Kupanga ndondomeko ya isostatic graphite
Kukanikiza kwa Isostatic ndi njira yamitundu yambiri yomwe imalola kupeza midadada yofananira kwambiri yokhala ndi magawo okhazikika pagawo lililonse ndi mfundo.
Zodziwika bwino za isostatic graphite:
• Kutentha kwambiri komanso kukana mankhwala
• Kukana kwabwino kwa kutentha kwa kutentha
• High conductivity magetsi
• High matenthedwe madutsidwe
• Imawonjezera mphamvu ndi kutentha kowonjezereka
• Easy pokonza
• Itha kupangidwa moyera kwambiri (<5 ppm)
Kupanga kwaisostatic graphite
1. Koka
Coke ndi gawo lomwe limapangidwa m'malo oyenga mafuta potenthetsa malasha olimba (600-1200 ° C). Njirayi imachitika mu uvuni wa coke wopangidwa mwapadera pogwiritsa ntchito mpweya woyaka komanso mpweya wochepa. Lili ndi mphamvu ya calorific yokwera kuposa malasha wamba.
2. Kuphwanya
Pambuyo poona zopangira, izo ndi wosweka kuti tinthu kukula. makina apadera akupera zinthu kusamutsa zabwino kwambiri malasha ufa analandira mu matumba apadera ndi m'magulu monga tinthu kukula.
Phokoso
Izi ndi zopangidwa mwa kuotcha malasha olimba, mwachitsanzo, kuwotcha pa 1000-1200 ° C popanda mpweya. Pitch ndi wandiweyani wamadzimadzi wakuda.
3. Kukanda
Pambuyo popera coke, imasakanizidwa ndi phula. Zida zonse ziwirizi zimasakanizidwa pa kutentha kwakukulu kuti malasha asungunuke ndikuphatikizana ndi tinthu tating'onoting'ono ta coke.
4. Kuphwanya kwachiwiri
Pambuyo pa kusakaniza, timipira tating'ono ta kaboni timapangidwa, zomwe ziyenera kupangidwanso kuti zikhale zabwino kwambiri.
5. Isostatic kukanikiza
Tizigawo tating'ono tating'ono tating'ono tating'ono titha kukonzedwa, kukakamiza kumatsatira. Ufa wopezedwa umayikidwa mu nkhungu zazikulu, miyeso yomwe imagwirizana ndi kukula kwa chipika chomaliza. Mpweya wa kaboni mu nkhungu umakhudzidwa ndi kupanikizika kwakukulu (kuposa 150 MPa), yomwe imagwiritsa ntchito mphamvu yomweyo ndi kukakamiza kwa tinthu tating'onoting'ono, timawakonza mofanana ndi kugawidwa mofanana. Njirayi imalola kupeza magawo omwewo a graphite mu nkhungu yonse.
6. Carbonization
Gawo lotsatira komanso lalitali kwambiri (miyezi 2-3) ndikuphika mu ng'anjo. Zinthu zopanikizidwa ndi isostatically zimayikidwa mu ng'anjo yayikulu, momwe kutentha kumafikira 1000 ° C. Pofuna kupewa chilema chilichonse kapena ming'alu, kutentha kwa ng'anjo kumayendetsedwa nthawi zonse. Mukamaliza kuphika, chipikacho chimafika kuuma kofunikira.
7. Pitch Impregnation
Panthawi imeneyi, chipikacho chikhoza kuyikidwa ndi phula ndikuwotchedwanso kuti chichepetse porosity yake. Impregnation nthawi zambiri imachitika ndi phula lokhala ndi mamasukidwe otsika kuposa phula lomwe limagwiritsidwa ntchito ngati chomangira. Kukhuthala kwapansi kumafunika kuti mudzaze mipata molondola.
8. Kujambula zithunzi
Panthawiyi, matrix a maatomu a carbon adalamulidwa ndipo kusintha kwa carbon kupita ku graphite kumatchedwa graphitization. Graphitization ndi kutentha kwa chipika chopangidwa mpaka kutentha pafupifupi 3000 ° C. Pambuyo graphitization, kachulukidwe, madutsidwe magetsi, madutsidwe matenthedwe ndi dzimbiri kukana ndi bwino bwino, ndipo processing dzuwa ndi bwino.
9. Zithunzi za Graphite
Pambuyo graphitization, katundu onse wa graphite ayenera kufufuzidwa - kuphatikizapo tirigu kukula, kachulukidwe, kupinda ndi compressive mphamvu.
10. Kukonza
Zinthu zikakonzedwa bwino ndikufufuzidwa, zitha kupangidwa molingana ndi zikalata zamakasitomala.
11. Kuyeretsedwa
Ngati isostatic graphite imagwiritsidwa ntchito mu semiconductor, single crystal silicon ndi mafakitale amphamvu a atomiki, chiyero chachikulu chimafunika, kotero zonyansa zonse ziyenera kuchotsedwa ndi njira zama mankhwala. Chizoloŵezi chochotsa zonyansa za graphite ndikuyika chopangidwa ndi graphite mu mpweya wa halogen ndikutenthetsa mpaka pafupifupi 2000 ° C.
12. Chithandizo chapamwamba
Malingana ndi momwe graphite imagwiritsidwira ntchito, pamwamba pake imatha kukhala pansi ndikukhala ndi malo osalala.
13. Kutumiza
Pambuyo pokonza komaliza, zomaliza za graphite zimayikidwa ndikutumizidwa kwa kasitomala.
Kuti mumve zambiri za kukula komwe kulipo, magiredi a isostatic graphite ndi mitengo, chonde omasuka kulumikizana nafe. Akatswiri athu adzakhala okondwa kukulangizani pazinthu zoyenera ndikuyankha mafunso anu onse.
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Nthawi yotumiza: Sep-14-2024