IiCrucibles zeGraphite

IiCrucibles zeGraphiteNika uluhlu lwepropathi ebangela ukuba kuthathe ukhetho oluphezulu kusetyenziso lweqondo lokushisa, ngakumbi kumsebenzi wensimbi. Nazi izinto eziphambili zezakhiwo kunye neenkcazo ezichaza ukusebenza kwezi ntloko-thuselo:

1. I-Thermal Conductivity
   • Iintsimbi zegraphitebonisa i-thermal conductivity egqwesileyo, eqinisekisa ukuhanjiswa kobushushu obufanayo. Le propathi inciphisa iindawo ezishushu kwaye iqinisekisa nokunyibilika, izenza zisebenze kakuhle kwiintsimbi ezinjengegolide, ubhedu, kunye ne-aluminiyam.
   • I-Thermal conductivity inokufikelela kumaxabiso ukuya kuthi ga kwi-100 W/m·K, ephezulu xa kuthelekiswa nemathiriyeli yemveli echasayo.
2. Ukumelana nobushushu obuphezulu
   • Iintsimbi zegraphiteziyakwazi ukumelana nobushushu obuphezulu kakhulu, ukuya kuthi ga kwi-1700°Ckwindawo engasebenziyo okanye kwiimeko zokufunxa. Oku kubavumela ukuba bagcine imfezeko yolwakhiwo kwiindawo ezinemfuno ebangwayo ngaphandle kokuthotywa.
   • Ezi crucibles zihlala zizinzile kwaye zichasene ne-deformation phantsi kobushushu obukhulu.
3. I-Coefficient ephantsi yoKwandiswa kweThermal
   • Iimathiriyeli zegraphite zine ai-coefficient ephantsi yokwandiswa kwe-thermal(ephantsi kwe-4.9 x 10 ^ -6 / ° C), ukunciphisa umngcipheko wokuqhekeka okanye ukutshatyalaliswa kwe-thermal xa kubonakaliswe utshintsho olukhawulezayo lokushisa.
   • Olu phawu lwenza i-graphite crucibles ifaneleke ngokukodwa kwiinkqubo ezibandakanya ukufudumeza okuphindaphindiweyo kunye nokupholisa imijikelo.
4. Ukunyangwa koMhlwa
   • Igraphite ayisebenzi ngokwekhemikhali kwaye inikezelaukuxhathisa okuphezulu kwiiasidi ezininzi, iialkali, kunye nezinye ii-agent ezidliwayo, ngakumbi ekunciphiseni okanye kwi-atmospheres engathathi hlangothi. Oku kwenza ukuba kubekho igrafu ukuba ilungele indawo yobundlobongela kwintsimbi yentsimbi okanye ukucocwa.
   • Ukuchasana kwezinto kwi-oxidation kunokwandiswa ngakumbi ngeengubo okanye unyango olukhethekileyo, ukuqinisekisa ubomi obude benkonzo.
5. Ukuqhuba koMbane
   • Njengomqhubi olungileyo wombane, izixhobo zegrafu zilungele izixhobo zokufudumeza. Ukuqhekeka kombane okuphezulu kwenza ukuba ukuphakama ngokufanelekileyo kweenkqubo ze-impindere, ukuqinisekisa ukufudumeza okukhawulezayo kunye nokufana.
   • Le propati iluncedo ngokukodwa kwiinkqubo ezifunayoiicrucibles heater induction, ukuphucula ukusebenza kakuhle kumashishini afana ne-Foundry work okanye i-metallurgy.
6. Ubunyulu kunye noBume bezinto eziphathekayo
   • Iicrucibles ze-carbon graphite ezicocekileyo eziphezulu(ukuya kuthi ga kwi-99.9% yococeko) iyimfuneko kwizicelo apho ukungcoliseka kwesinyithi kufuneka kuphetshwe, njengokuveliswa kweentsimbi ezixabisekileyo okanye i-ceramics ephezulu.
   • Iintsimbi ze-silicon carbide graphite cruciblesukudibanisa iipropathi zombini zegraphite kunye ne-silicon carbide, enikezela amandla omatshini aphuculweyo, ukuxhathisa kwe-oxidation, kunye nendawo ephezulu yokunyibilika, efanelekileyo kwiimeko zokusebenza ezigqithisileyo.
7. Ukuqina kunye Nobomi obude
   • Iicrucible zegraphite ezicinezelwe nge-Isostaticallyzenziwa ukuba zibe noxinaniso kunye namandla afanayo, okukhokelela kubomi obude kunye nokuncipha kokungaphumeleli kwezinto ngexesha lemisebenzi yobushushu obuphezulu. Ezi nqamlezeke ziyanyangeka ngakumbi kukukhukuliseka kunye nomonakalo woomatshini.

8. Ukuqulunqwa kwemichiza:

   • Ikhabhoni (C): 20-30%
   • I-Silicon Carbide (SiC): 50-60%
   • IAlumina (Al2O3): 3-5%
   • Abanye: 3-5%
9. Ubungakanani obunokwenziwa ngokwezifiso kunye neeMilo
   • I-grafitite ye-grafite ifumaneka kwiintlobo ezahlukeneyo zesayizi kunye nokucwangciswa. Ukusukaiicrucibles ezincinci zegraphite(elufanelekele uvavanyo lwentsimbi yelebhu) kwiicrucibles ezinkulu ezenzelwe ukunyibilikiswa kweshishini, sinikezela ngezisombululo ezilungiselelwe zonke izicelo.
   • Iicrucibles ezine-graphitekunye nezikhonkwane ngegalela iipuphuIngakwazi ukwenziwa kwiimfuno ezithile zokuphosa, kuqinisekisa ukulunga kunye nokusebenza ngokukuko kwi-iron.