Igisubizo cya Graphite Silicon Carbide Crucibles: Urufunguzo rwo hejuru-Metallurgie

Mwisi yisi ya metallurgie nibikoresho siyanse,umusarabani igikoresho cyingenzi cyo gushonga no guta ibyuma. Mu bwoko butandukanye bwo kubambwa, umusaraba wa grafite silicon karbide (SiC) ugaragara kubintu byihariye bidasanzwe, nk'umuvuduko ukabije w'amashyanyarazi, guhangana n’ubushyuhe bukabije bw’umuriro, hamwe n’imiti ihagaze neza. Muri iki kiganiro, tuzacukumbura muri resept ya grafite ya SiC tunasuzume uburyo ibihimbano byabo bigira uruhare mubikorwa byabo bitangaje mubushyuhe bwo hejuru.

Ibyingenzi

Ibice byibanze bigize grafite ya SiC ni flake grafite na karubide ya silicon. Flake grafite, ubusanzwe igizwe na 40% -50% yibyingenzi, itanga ubushyuhe bwiza nubushuhe, bifasha mukurekura byoroshye ibyuma. Carbide ya Silicon, igizwe na 20% -50% byingirakamaro, ishinzwe guhangana ningaruka zikomeye ziterwa nubushyuhe bwumuriro hamwe nubushakashatsi bwimiti mubushyuhe bwinshi.

Ibice byinyongera kubikorwa byongerewe imbaraga

Kugirango turusheho kunoza imikorere yubushyuhe bwo hejuru hamwe nubushakashatsi bwimiti yibintu byingenzi, hiyongereyeho ibice:

1. Ifu ya silicon yibanze (4% -10%): Yongera imbaraga zubushyuhe bwo hejuru hamwe na okiside irwanya ingirakamaro.
2. Ifu ya karbide ya Boron (1% -5%): Yongera imiti ihamye no kurwanya ibyuma byangirika.
3. Ibumba (5% -15%): Gukora nkumuhuza kandi utezimbere imbaraga za mashini hamwe nubushyuhe bwumuriro bwingenzi.
4. Thermosetting binder (5% -10%): Ifasha muguhuza ibice byose hamwe kugirango habeho imiterere ihuriweho.

Inzira yohejuru

Kubisabwa bisaba gukora cyane, imikorere-yohejuru ya grafite ya formula ikoreshwa. Iyi formula igizwe na 98% ya grafite ya grafite, 2% oxyde ya calcium, 1% oxyde ya zirconium, 1% aside boric, 1% sodium silike, na silikatike ya aluminium 1%. Ibi bikoresho byinyongera bitanga imbaraga ntagereranywa kubushyuhe bwo hejuru hamwe nibidukikije bitera imiti.

Uburyo bwo gukora

Gutegura ibishushanyo bya grafite SiC birimo inzira yitonze. Mu ntangiriro, flake grafite na karubide ya silicon ivanze neza. Hanyuma, ifu yibanze ya silicon, ifu ya boron karbide, ibumba, hamwe nubushyuhe bwa thermosetting byongewe kumvange. Uruvange noneho rushyirwa muburyo ukoresheje imashini ikonje. Hanyuma, umusaraba wubatswe ushizwemo mu ziko ryubushyuhe bwo hejuru kugirango wongere imbaraga za mashini hamwe nubushyuhe bwumuriro.

Porogaramu ninyungu

Graphite SiC ibamba ikoreshwa cyane munganda zibyuma byo gushonga no guta ibyuma nkicyuma, ibyuma, umuringa, na aluminium. Ubushobozi bwabo bwo hejuru bwumuriro butanga ubushyuhe bumwe kandi bugabanya gukoresha ingufu. Kurwanya ubushyuhe bukabije bwumuriro bigabanya ibyago byo guturika mugihe cyimihindagurikire yubushyuhe bwihuse, mugihe imiti yabyo ihagaze neza kugirango icyuma gishongeshejwe.

Mu gusoza, resept ya grafite silicon carbide crucibles ni uruvange rwiza rwibikoresho bitanga uburinganire bwimikorere yubushyuhe bwumuriro, guhangana nubushyuhe bwumuriro, hamwe nubushakashatsi bwimiti. Ibi bihimbano bituma baba ingenzi mubijyanye na metallurgie, aho bigira uruhare runini mugushonga neza kandi kwizewe no gushonga ibyuma.

Mugusobanukirwa ibice hamwe nuburyo bwo gukora ibishushanyo mbonera bya grafite ya SiC, inganda zirashobora guhitamo neza kubijyanye nibikorwa byihariye, bigatuma imikorere myiza no kuramba kwingenzi. Mugihe ikoranabuhanga rigenda ritera imbere, harateganijwe kurushaho kunozwa muburyo bwa resept hamwe nubuhanga bwo gukora ibishushanyo mbonera bya grafite SiC biteganijwe, bigatanga inzira yuburyo bunoze kandi burambye bwo gukora metallurgjiya.