Hariho itandukaniro rikomeye hagatisilicon karbide yabambwena grafite ingirakamaro mubice byinshi nkibikoresho, inzira, imikorere, nibiciro. Itandukaniro ntirigira ingaruka kubikorwa byaryo gusa, ahubwo rinagaragaza imikorere yaryo hamwe nibisabwa.
itandukaniro rinini
Graphite yabambwe ikozwe muburyo busanzwe bwa flake grafite kandi ikoresha ibumba nka binder. Ihuriro ritanga igishushanyo mbonera cyiza cyogukoresha ubushyuhe hamwe nubushyuhe bwo hejuru, bigatuma gikoreshwa muburyo bwo gushonga cyane. Imiterere idasanzwe hamwe nubushyuhe bwo hejuru bwumuriro wa flake grafite ituma umusaraba wa grafite ukundwa cyane mubikorwa bya metallurgie na fondasiyo.
Carbide ya silicon ikomeye cyane ishingiye kuri grake ya flake karemano, hamwe na karubide ya silicon nkibintu nyamukuru hamwe nubushyuhe bwo hejuru cyane nka binder. Nkibikoresho bya superhard, karbide ya silicon ifite imbaraga zo kwihanganira kwambara cyane hamwe nubushyuhe bwumuriro, bigatuma umusemburo wa karibide ya silicon ukoreshwa mubidukikije bikaze. Gukoresha ubushyuhe bwo hejuru cyane kandi byongera imbaraga zingirakamaro muri rusange no kuramba.
Gutandukanya inzira
Igikorwa cyo gukora grafite cyibanze ahanini gishingiye kumaboko na mashini. Utubuto duto twa grafite dusanzwe dukorwa no gukanda imashini, hanyuma tukayungurura mu itanura ku bushyuhe bwo hejuru bwa dogere 1.000, hanyuma amaherezo ugasiga irangi rirwanya ruswa cyangwa irangi ridafite ubushuhe kugirango byongere igihe kirekire kandi birwanya ruswa. Iyi nzira gakondo, nubwo ihenze cyane, ifite aho igarukira muburyo bwo gukora neza no guhuza ubuziranenge.
Igikorwa cyo gukora karubide ya silicon ikomeye cyane kirateye imbere, ukoresheje ibikoresho byo gukanda isostatike hamwe na formulaire ya siyansi. Tekinoroji yo gukanda isostatike ikoresha igitutu kimwe (kugeza kuri MPa 150), bikavamo ubucucike bukabije no guhuzagurika mubikomeye. Iyi nzira ntabwo itezimbere imbaraga zumukanishi gusa, ahubwo inongerera cyane imbaraga zo guhangana nubushyuhe bwumuriro no kwangirika.
Itandukaniro ryimikorere
Kubijyanye nimikorere, hari itandukaniro rikomeye hagati ya grafite ya grafite na silicon karbide. Imirambararo ya Graphite ifite ubucucike bwa 13 kA / cm², mu gihe umusaraba wa karuboni ya silicon ufite ubucucike bwa 1,7 kugeza 26 kA / mm². Ubuzima bwa serivisi bwibibumbano bya grafite mubisanzwe bikubye inshuro 3-5 ubw'ibiti bya silicon karbide, biterwa ahanini nimbaraga zisumba izindi hamwe no kurwanya ruswa ya kariside ya karibide.
Byongeye kandi, itandukaniro ryubushuhe hagati yimbere ninyuma ya grafite iraboneka ni dogere 35, mugihe itandukaniro ryubushyuhe bwa karibide ya silikoni ikomeye ni dogere 2-5 gusa, bigatuma karibide ya silicon ikomeye cyane murwego rwo kugenzura ubushyuhe nubushyuhe. ituze. Kurwanya aside na alkali hamwe no kurwanya ruswa ya kariside ya karibide ya silicon nayo irarenze kure iy'imisaraba ya grafite, iteza imbere cyane ingufu kandi ikabika ingufu zigera kuri 50% kuruta umusaraba wa grafite.
itandukaniro kubiciro
Bitewe no gutandukanya ibikoresho nibikorwa byo gukora, ibishushanyo mbonera bya grafite na silicon karbide yabyo nabyo bifite itandukaniro ryibiciro. Mubisanzwe, silicon karbide yabambwe ihenze inshuro eshatu zihenze kuruta umusaraba wa grafite. Iri tandukaniro ryibiciro ryerekana ibyiza byingenzi bya silicon karbide yabambwe mubijyanye nigiciro cyibikoresho, ibikorwa byo gukora bigoye no gukora.
Muri make, nubwo silikoni ya karbide yabambwe itwara amafaranga menshi, kuramba kwayo kurenze, kurwanya ruswa, hamwe ningufu zingufu zituma bahitamo neza kubisabwa byinshi. Graphite crucibles ikomeza gukoreshwa cyane mubikorwa gakondo bitewe nigiciro cyayo gito nibintu byiza byibanze. Ibyiza nibibi byibi byingenzi byombi byerekana ko bikwiranye nibisabwa bitandukanye.
Igihe cyo kohereza: Jun-13-2024