Ukadaulo wopanga wa graphite-silicon carbide crucible

The zopangira zikuchokera of graphite-silicon carbide cruciblesndi kusakanizika koyenera kwa zinthu zosiyanasiyana, chilichonse chimapangitsa kuti chinthu chomalizacho chikhale chapadera. Wopangidwa ndi flake graphite, silicon carbide, elemental silicon ufa, boron carbide ufa ndi dongo, kuchuluka kwa zopangira izi kumagwira ntchito yofunika kwambiri pakuzindikiritsa mawonekedwe a crucible.

Njira yopangira ma graphite-silicon carbide crucibles ndi njira zotsatizana zomwe zimatsimikizira mtundu ndi kukhulupirika kwa chinthu chomaliza. Zopangirazo zimayamba kusakanikirana mofanana kuti zipange slurry woyenerera, womwe umayikidwa mu nkhungu ndikuwunikiridwa mu mawonekedwe pogwiritsa ntchito makina osindikizira a isostatic. Chopandacho chimachotsedwa ndikuwumitsidwa ndikukutidwa ndi glaze yoteteza, yomwe imapangidwa ndi okosijeni ndikusungunuka mugalasi yonyezimira powombera maliseche. Chomalizidwacho chimawunikiridwa ndikuwonedwa kuti ndichokonzeka kugwiritsidwa ntchito.

Chosiyana kwambiri ndi njira yopangira izi ndi kuphweka kwake komanso ntchito yabwino kwambiri ya crucibles. The crucible ali yunifolomu kapangidwe, kachulukidwe mkulu, otsika porosity, mofulumira matenthedwe madutsidwe ndi kukana dzimbiri amphamvu. Makhalidwewa amachititsa kuti akhale abwino kwa ntchito zosiyanasiyana, makamaka m'mafakitale omwe kutentha kwambiri ndi mankhwala owopsa amapezeka.

Chimodzi mwazinthu zodziwika bwino pakupangira ndi kugwiritsa ntchito dongo ngati chomangira. Kusankha kumeneku kumagwira ntchito ziwiri chifukwa sikumangothandiza kuti crucible igwire ntchito komanso kumachepetsa nkhawa za chilengedwe. Njirayi imagwiritsa ntchito dongo ngati chomangira kuti isawonongeke ndikutulutsa zinthu zovulaza monga phenolic resin kapena phula, zomwe zikanapangitsa utsi woyipa ndi fumbi panthawi yowotcha ndikuwononga chilengedwe.

Mwachidule, kapangidwe kazinthu zopangira ndi kupanga ma graphite silicon carbide crucible akuwonetsa kuphatikiza kogwirizana kwa sayansi ndi ukadaulo komanso kuzindikira zachilengedwe. Zomwe zimapangidwira ndi umboni wa luso lamakono opanga zinthu, kupereka njira zodalirika komanso zokhazikika kwa mafakitale omwe amafunikira crucibles yapamwamba.