(1) Clay-bonded silicon carbide bricks
Saray clay-bonded silicon carbide bricks et saray fired refractory products ya ginawa manlapud silicon carbide ya say clay so manseserbin bonding agent. Lapud atagey so thermal conductivity, abeban thermal expansion, tan ekselentin thermal shock tan wear resistance, saratan so sankaunaan ya klase na silicon carbide-based brick ya ginawa.
Sarayan laryo et manguusar na black silicon carbide bilang raw material, ya say kemikal ya komposisyon to et: SiC 98.0%, free C 0.5%, Fe 0.2%, tan free SiO2 0.6%. Say anlemek a pitek ya maong so panag-apiger to tan say pulp waste liquor so manserbin binder. Bangta diad awaran et atagey so proporsyon na bonding clay (kaslakan et 10%-15%) ya inusar, say kaplesan ya gagawaen et paboran so kombinasyon na 3% clay tan 5% pulp waste liquor. Saray laryo ya abeba so clay da et walaan na thermal conductivity ya talora anggad apatiran danay ya mas atagey nen saray mas atagey so clay da, ontan met ed superyor ya load-bearing softening temperatures tan slag resistance. Say proseso na panaggawa na saray laryo ya walay 3% ya clay et mangilalanor na panlalaok na magaspang, medium, tan pinon SiC particles pian naabot so sankatageyan ya bulk density. Kayari na maong ya panaglaok, say pitek so iyarum; kayari na 3 minuton dry mixing, 4% ya pulp waste liquor (density 1.26-1.28 g/cm3) so iloob parad wet mixing. Say danum ed samay laok et ngalngalin 1.5%. Kayari na 12-oras ya panag-edad, say laok et ipasa ed 4 mm ya sieve tan naporma ya uusaren so brick press. Say karakel na saray berdin laryo et manlapud 2.5 anggad 2.7 g/cm3. Saray laryo et pamaraan ed dagem ed loob na 2-4 ya agew insan papoolan ed tunnel kiln ya 1400 degree.
Sarayan produkto et uusaren parad saray muebles ed ceramic kiln (singa saray batts, supports, tan saggers), muffle furnace covers, lining parad aluminum refining furnaces, distillation retorts parad zinc distillation furnaces, tan coolers parad cement rotary kilns.
(2) Silicon nitride-bonded silicon carbide bricks
Saray silicon nitride-bonded silicon carbide bricks et ag-onlelereg ya produkto ya ginawa manlapud SiC tan Si powders panamegley na proseso na nitriding tan firing. Saraya so walaan na silicon nitride (Si3N4) a bonding phase. Say Si3N4 et walad acicular (singa dagum-) odino fibrous crystals ed baetan na saray bukel na silicon carbide (SiC), kanian saya so importantin klase na advanced refractory material.
Diad pangusar ed prinsipyo na reaction sintering, saray SiC green bodies ya walay silicon powder to et na-sinter panamegley na nitridation reaction; say proseso na panagpool et nagagawa ed sakey a selyadon hurnoan ya walay atmospera na nitroheno, ya mangiiter na eksakton panangontrol. Say temperatura, presyon, tan atmospera na hurnoan et malet ya nareregula. Saray manunan parametro na proseso et kaiba so: nitriding gas pressure ya 0.02-0.04 MPa, say oxygen content na atmospera na hurno et abeba nen 0.01%, tan say pinal ya temperatura na nitridation ya 1350-1450 degree; say dagup na panaon na nitridation et manduruma depende ed kurti tan kabaleg na produkto.
Saray silicon nitride-bonded silicon carbide bricks et walaan na ekselentin resistensya ed alkali erosion, resistensya ed panagbasa na tinunaw ya cryolite, resistensya ed oxidation, resistensya ed panag-usar, atagey a thermal conductivity, thermal shock resistance, tan abeban tuloy ya electrical conductivity.
Sarayan laryo et manunan uusaren bilang lining parad abeban shaft na saray blast furnace, ya mangiyoopresi na serbisyo na masulok ya doble nen say tradisyonal iran refractory. Niarum ni, manseserbi iratan bilang lining parad saray aluminum reduction cells tan bilang ceramic kiln furniture-ya mangiyoopresi na saray benepisyo a singa say pakatipid na enerhiya, andukey a panaon na serbisyo, tan ag-inkayadyari ed kaliberliber-tan uusaren met iratan bilang sleeve bricks parad water-cooled blast furnace tuyeres.
(3) Recrystallized Silicon Carbide Products
Saray produkton silicon carbide ya in-recrystallized et ag-onlelereg ya materyales ya gawad silicon carbide raw materials, ya nanengneng ed direktan pankakasakey na silicon carbide grains. Nibiig iratan lapud anggapoy segundaryon yugtan, ya tugyopen na 100% -SiC. Say kemikal a komposisyon na saray hilaw ya materyales ya inusar ed panaggawa na recrystallized silicon carbide et onia: SiC 99.5%, free C 0.2%, Fe 0.08%, tan free SiO2 0.08%.
Saray produkton recrystallized silicon carbide et manunan uusaren bilang kiln furniture, ya mangiyoopresi na bentaha a singa say pakatipid na enerhiya, mas dakel ya kiln volume, mas antikey so firing cycles, mas maong ya produksyon, tan atagey ya tubo ed ekonomya. Uusaren met iratan parad saray burner nozzle, ceramic radiant heating tubes, tan component protection tubes (lalo la ed saray atmosphere furnace).