Njira yopanga mafakitale ya reaction-sintered silicon carbide iyenera kukhala yapamwamba kwambiri

Njira yopangira mafakitale ya reaction-sintered silicon carbide ndikuchotsa mchenga wapamwamba kwambiri wa quartz ndi calcined petroleum coke mu ng'anjo yotentha yamagetsi. Mipiringidzo yoyengedwa ya silicon carbide imapangidwa kukhala zinthu zomwe zimagawika magawo osiyanasiyana a tinthu tating'onoting'ono pophwanya, asidi amphamvu ndi kutsuka kwa alkali, zida zolekanitsa maginito ndikuwunika kapena kulekanitsa madzi.

Silicon carbide ili ndi mitundu iwiri yodziwika bwino yakuda silicon carbide ndi green silicon carbide, zonse zomwe ndi α-SiC. ① Black silicon carbide ili ndi pafupifupi 95% SiC, ndipo ductility yake ndi yapamwamba kuposa green silicon carbide, yomwe yambiri imagwiritsidwa ntchito popanga ndi kukonza zopangira zokhala ndi mphamvu zochepa, monga galasi laminated, porcelain, miyala, refractory, chitsulo cha nkhumba ndi zitsulo zamtengo wapatali. ② Green silicon carbide ili ndi SiC pafupifupi 97% pamwambapa, kudzinola bwino ndikwabwino, ambiri aiwo amagwiritsidwa ntchito popanga ndi kukonza zida za carbide, titaniyamu zitsulo ndi magalasi owoneka bwino, komanso amagwiritsidwa ntchito polemekeza silinda liner ndi kupukuta mwamphamvu kwambiri. zida zachitsulo. Kuphatikiza apo, pali ma cubic metres a silicon carbide, omwe ndi kristalo wobiriwira wobiriwira wopangidwa ndi njira yatsopano, ndipo amagwiritsidwa ntchito popanga nkhungu yoyenera kunyamula kumaliza kwambiri, yomwe ingapangitse kuuma kwapamwamba kuchokera ku Ra32 ~ 0.16μm mpaka Ra0.04 ~ 0.02μm.

Ntchito zazikulu za reaction sintering silicon carbide

(1) Monga chinthu chosavala, chingagwiritsidwe ntchito ngati nkhungu, monga gudumu la mchenga, whetstone, gudumu lopukuta, matailosi a mchenga, etc.

(2) Monga wothandizila deoxidizing ndi dzimbiri zosagwira chuma makampani zitsulo. Silicon carbide makamaka imaphatikizapo ntchito zinayi zazikuluzikulu, zomwe ndi: zoumba zogwirira ntchito, zida zokanira zapamwamba kwambiri, zida zosavala komanso zosungunulira. Panthawiyi, silicon carbide roughage ikhoza kuperekedwa m'njira zambiri, zomwe sizinthu zamakono, komanso kugwiritsa ntchito ufa wa nano-silicon carbide ufa wochuluka kwambiri wa sayansi ndi zamakono sikungatheke kutulutsa zotsatira za nthawi yochepa.

(3) kristalo wapamwamba-woyera, woyenera kupanga zida zopangira semiconductor, kupanga silicon carbide chemical fibers.

Kuchuluka kwa ntchito: Kwa 3-12 mapazi photovoltaic cell, photovoltaic cell, potaziyamu arsenide, quartz resonators ndi zina zodula mzere. Solar photovoltaic industry, semiconductor industry, piezoelectric crystal industry chain engineering project raw material processing.

Reactive sintering silicon carbide - mapangidwe mapangidwe

Kuthamanga kwapamwamba kwambiri komanso kutentha kwakukulu komwe kumapangidwa pakatikati pa dziko lapansi kumapopera pansi ndi chiphalaphalacho. Monga Thailand, Australia, China Shandong, United States ndi mayiko ena. Yade yachitsulo imapangidwa ndi touch metamorphism. Monga Myanmar, Kashmir, China Anhui ndi madera ena. Ruby padziko lapansi makamaka amachokera ku placers. Ndi kudzera mumitundu yosiyanasiyana yama emeralds zachilengedwe, miyala yamtengo wapatali ya buluu mwa kukokoloka kophatikizana komwe kumayambitsa sintering silicon carbide yokhala ndi ore yachilengedwe ya silicon, kaboni, matabwa amatabwa, mchere wamafakitale monga zida zopangira, mu ng'anjo yamagetsi yotentha yamagetsi imawonekera. Kuwonjezera kwa nkhuni slag ndi kupanga kachidutswa kakang'ono ka zinthu zosakanikirana pa kutentha kwakukulu kuti apange mawonekedwe a porous, omwe amathandiza kuwonetsera thupi lalikulu la nthunzi ndi kusasunthika komwe kumachotsa, kuteteza ngozi za kuphulika, chifukwa cha mbadwo. ya 1 tani ya silicon carbide, imatha kupanga pafupifupi 1.4t ya carbon monoxide (CO). Udindo wa mchere wa mafakitale (NaCl) ndiwothandiza kuchotsa aluminium oxide, mankhwala ndi zotsalira zina muzinthu.