Kedu ihe ndị na-ekpo ọkụ nke ọkụ muffle?

Ihe ndị na-ekpo ọkụ nke ọkụ muffle gụnyere waya ọkụ ọkụ eletrik, mkpanaka silicon carbide, na mkpanaka silicon molybdenum.

Igwe ọkụ ọkụ eletrik:

Igwe ọkụ ọkụ eletrik bụ ígwè-chromium-aluminom na nickel-chromium eletriki kpo oku alloy wires. Kọmputa na-achịkwa ike waya ọkụ ọkụ, ma igwe na-agba ọsọ na-agba ọsọ na-emerụ ya ahụ. Ọ na-agụnyekarị eriri igwe ọkụ eletrik ígwè-chromium-aluminom alloy na nickel-chromium alloy ọkụ ọkụ wires. Nke mbụ bụ ihe alloy nwere usoro ferrite, nke ikpeazụ bụ ihe alloy nwere usoro austenite. Ma chromium-aluminom alloy electric oku waya waya na nickel-chromium alloy electric oku waya waya nwere a agbaze ebe n’okpuru 1400 ℃, na ha na-n’ozuzu na a nnọọ elu okpomọkụ (ọkụ ala) n’okpuru ọrụ ọnọdụ, na ha na-adịkarị mfe oxidation mmeghachi omume. na ikuku na ọkụ adịghị mma.

Mkpanaka carbide silicon:

Mkpanaka silicon carbide bụ mkpara na tubular na-abụghị ọla ọkụ ọkụ eletrik na-ekpo ọkụ nke ejiri silicon carbide hexagonal na-acha akwụkwọ ndụ dị ọcha dị ka isi akụrụngwa. N’ime ikuku oxidizing, okpomọkụ a na-ejikarị eme ihe nwere ike iru 1450 ℃, na ojiji na-aga n’ihu nwere ike iru awa 2000. Mkpanaka silicon carbide siri ike ma na-agbaji agbaji, na-eguzogide ngwa ngwa oyi na ngwa ngwa ngwa ngwa, anaghị emebi ngwa ngwa na okpomọkụ dị elu, a na-ejikwa ya na okpomọkụ dị elu. Ha nwere àgwà nke elu okpomọkụ na-eguzogide, oxidation resistance, corrosion resistance, ngwa ngwa okpomọkụ ịrị elu, ogologo ndụ, obere elu okpomọkụ deformation, adaba echichi na mmezi, wdg, na ha dị mma Chemical kwụsie ike.

Otú ọ dị, silicon carbide mkpanaka element nwere ike inwe mmetụta ndị a na ikuku oxygen na mmiri vapo mgbe ejiri ya ogologo oge karịa 1000 ℃:

①Sic+2O2→Sio2+CO2 ②Sic+4H2O=Sio2+4H2+CO2

N’ihi ya, ọdịnaya SiO2 dị na mmewere ji nwayọọ nwayọọ na-abawanye, na nguzogide na-abawanye nwayọọ nwayọọ, nke bụ ịka nká. Ọ bụrụ na uzuoku mmiri dị ukwuu, ọ ga-akwalite oxidation nke SiC. H2 mepụtara site na mmeghachi omume nke usoro ② na-ejikọta ya na O2 na ikuku wee meghachi omume na H2O iji mepụta gburugburu ọjọọ. Belata ndụ akụrụngwa. Hydrogen (H2) nwere ike ibelata ike igwe nke akụrụngwa. Nitrogen (N2) dị n’okpuru 1200 ° C nwere ike igbochi SiC site na oxidizing na imeghachi omume na SiC n’elu 1350 ° C, nke mere na SiC nwere ike imebi site na chlorine (Cl2) na Sic nwere ike mebie kpamkpam.

Mgbochi silicon molybdenum:

Enwere ike iji mkpanaka silicon molybdenum mee ihe na ọkụ ọkụ nke 1600 ° C-1750 ° C. A na-ejikarị ha eme ihe na metallurgy, iko, seramiiki, ihe ndọta, ihe mgbagha, kristal, ihe elektrọn, nrụpụta ọkụ na mpaghara ndị ọzọ. Ha na-eji maka elu-okpomọkụ sintering nke ngwaahịa * ezigbo kpo oku mmewere.

A na-ekpughe mkpanaka silicon molybdenum na ikuku ikuku na-ekpo ọkụ na-ekpo ọkụ, na a na-emepụta oyi akwa mkpuchi quartz n’elu iji gbochie mkpanaka molybdenum silicon ka ọ ghara ịga n’ihu oxidize. Mgbe akụkụ okpomọkụ dị elu karịa 1700 ° C, mkpuchi mkpuchi quartz na-agbaze, na ihe ahụ na-aga n’ihu na-eji ya na ikuku oxidizing, na mkpuchi mkpuchi quartz na-emegharị. E kwesịghị iji mkpanaka silicon molybdenum mee ihe ruo ogologo oge na 400-700 ℃, ma ọ bụghị ya, ihe ndị ahụ ga-abụ powdered n’ihi ike oxidation na obere okpomọkụ.