Silicon carbide ceramic molding process kugereranya: inzira yo gucumura nibyiza byayo nibibi

Silicon carbide ceramickugereranya uburyo bwo kugereranya: inzira yo gucumura nibyiza byayo nibibi

Mu gukora silicon carbide ceramics, gukora ni ihuriro rimwe gusa mubikorwa byose. Gucumura ninzira yibanze igira ingaruka itaziguye kumikorere yanyuma nibikorwa bya ceramics. Hariho uburyo bwinshi butandukanye bwo gucumura silicon karbide ceramics, buriwese ufite ibyiza n'ibibi. Muri iyi nyandiko ya blog, tuzasesengura inzira yo gucumura ya silicon carbide ceramics no kugereranya uburyo butandukanye.

1. Icyaha cyo gucumura:
Gukora reaction ni tekinike izwi cyane yo guhimba silicon karbide ceramics. Nuburyo bworoshye kandi buhendutse hafi ya net-to-size. Gucumura bigerwaho na silicidation reaction ku bushyuhe buke bwa 1450 ~ 1600 ° C nigihe gito. Ubu buryo bushobora kubyara ibice binini kandi binini. Ariko, ifite kandi ibibi byayo. Ibisubizo bya siliconizing byanze bikunze biganisha kuri 8% ~ 12% ya silicon yubusa muri karbide ya silicon, igabanya imiterere yubushyuhe bwo hejuru bwubushyuhe bwo hejuru, kurwanya ruswa, hamwe no kurwanya okiside. Kandi ubushyuhe bwo gukoresha bugarukira munsi ya 1350 ° C.

2. Gucumura bishyushye:
Gukanda cyane bishyushye nubundi buryo busanzwe bwo gucumura silicon karbide ceramics. Muri ubu buryo, ifu ya silicon yumye ya karbide yuzuzwa mubumba hanyuma igashyuha mugihe ushyizeho igitutu kiva muburyo bumwe. Ubu bushyuhe hamwe nigitutu icyarimwe bitera gukwirakwiza ibice, gutembera, no guhererekanya imbaga, bikavamo silicon karbide ceramics hamwe nintete nziza, ubucucike buri hejuru, hamwe nibikoresho byiza bya mashini. Ariko, gukanda gukabije gucumura nabyo bifite ibibi. Inzira iragoye kandi isaba ibikoresho nibikoresho byujuje ubuziranenge. Umusaruro ukora neza kandi ikiguzi ni kinini. Mubyongeyeho, ubu buryo burakwiriye gusa kubicuruzwa bifite imiterere yoroshye.

3. Gushyushya isostatike ishyushye:
Gukanda isostatike ishyushye (HIP) gucumura ni tekinike ikubiyemo ibikorwa bihujwe nubushyuhe bwo hejuru hamwe na gazi yumuvuduko mwinshi wa isotropique. Ikoreshwa mugucumura no gukwirakwiza ifu ya ceramic ya silicon karbide, umubiri wicyatsi cyangwa umubiri wabanje gucumura. Nubwo gucumura HIP bishobora kunoza imikorere yubutaka bwa silicon karbide, ntabwo ikoreshwa cyane mubikorwa byinshi kubera inzira igoye nigiciro kinini.

4. Icyaha kitagira igitutu:
Kutagira igitutu ni uburyo hamwe nubushyuhe buhebuje bwo gukora, uburyo bworoshye bwo gucumura hamwe nigiciro gito cya silicon karbide ceramics. Yemerera kandi uburyo bwinshi bwo gukora, bigatuma bukwiranye nuburyo bugoye nibice byimbitse. Ubu buryo burakwiriye cyane mu nganda nini nini zo mu nganda za silicon ceramics.

Muncamake, inzira yo gucumura nintambwe yingenzi mugukora ceramika ya SiC. Guhitamo uburyo bwo gucumura biterwa nibintu nkibintu byifuzwa bya ceramic, ubunini bwimiterere, igiciro cyumusaruro nuburyo bwiza. Buri buryo bufite ibyiza byabwo nibibi, kandi ni ngombwa gusuzuma witonze ibi bintu kugirango umenye inzira ikwiye yo gucumura kubikorwa runaka.