1. Gịnị bụ refractory?
Ihe ndị na-atụgharị anya n'ozuzu na-ezo aka na ihe inorganic na-abụghị ọla nwere nguzogide ọkụ karịa 1580 ℃.Ọ na-agụnye ihe ndị sitere n'okike na ngwaahịa dị iche iche mere site na usoro ụfọdụ dịka ụfọdụ ebumnuche chọrọ.Ọ nwere ụfọdụ ihe igwe na-ekpo ọkụ dị elu yana nkwụsi ike olu dị mma.Ọ bụ ihe dị mkpa maka ụdị ngwá ọrụ okpomọkụ dị elu.Ọ nwere ọtụtụ ojiji.
2. Ụdị refractories
1. Acid refractories na-ezokarị aka na refractories nwere ọdịnaya SiO2 karịrị 93%.Isi ihe ya bụ na ọ nwere ike iguzogide mmebi nke acid slag na okpomọkụ dị elu, ma ọ dị mfe imeghachi ya na alkaline slag.A na-ejikarị brik silica na brik ụrọ mee ihe dị ka ihe mgbakwasa acid.Brick silica bụ ngwaahịa siliceous nwere ihe karịrị 93% silicon oxide.Ngwa ngwa eji agụnye silica na brik silica na-efu.Ọ nwere ike iguzogide acid slag ozize, elu ibu nro nro okpomọkụ, na ọ dịghị adalata ma ọ bụ ọbụna gbasaa ntakịrị mgbe calcination ugboro ugboro;Otú ọ dị, ọ dị mfe ikpochapụ site na alkaline slag ma na-adịghị mma thermal nguzogide.A na-eji brik silica eme ihe na oven coke, iko iko, ọkụ nchara acid na akụrụngwa ọkụ ndị ọzọ.Brick ụrọ na-ewere ụrọ refractory dị ka isi akụrụngwa ma nwee 30% ~ 46% alumina.Ọ bụ ihe na-adịghị ike acidic refractory na ezigbo thermal vibration nguzogide na corrosion iguzogide slag acid.A na-ejikarị ya eme ihe.
2. Alkaline refractories n'ozuzu na-ezo aka refractories na magnesium oxide ma ọ bụ magnesium oxide na calcium oxide dị ka isi ihe.Ndị a refractories nwere nnukwu refractoriness na ike iguzogide slag alkaline.Dịka ọmụmaatụ, brik magnesia, brik magnesia chrome, brik chrome magnesia, brik magnesia aluminom, brik dolomite, brik forsterite, wdg. A na-ejikarị ya eme ihe n'ọkụ na-eme alkaline ígwè, ọkụ ọkụ na-esi ísì ụtọ na-esighị ike na simenti.
3. Aluminom silicate refractories na-ezo aka na refractories na SiO2-Al2O3 dị ka isi akụrụngwa.Dabere na ọdịnaya Al2O3, enwere ike kewaa ha na ọkara siliceous (Al2O3 15 ~ 30%), clayey (Al2O3 30 ~ 48%) na alumina dị elu (Al2O3 karịa 48%).
4. Mgbaze na nkedo refractory na-ezo aka na ngwaahịa refractory nwere ụdị nkedo mgbe agbazechara ogbe na okpomọkụ dị elu site na usoro ụfọdụ.
5. Ntugharị na-anọpụ iche na-ezo aka na refractories na-adịghị mfe imeghachi omume na acidic ma ọ bụ alkaline slag na elu okpomọkụ, dị ka carbon refractories na chromium refractories.Ụfọdụ na-ekwukwa na alumina refractories dị elu bụ nke a.
6. Pụrụ iche refractories bụ ọhụrụ inorganic nonmetallic ihe emepụtara na ndabere nke omenala ceramik na izugbe refractories.
7. Amorphous refractory bụ ngwakọta nke mejupụtara nchịkọta refractory, ntụ ntụ, ihe nkedo ma ọ bụ admixtures ndị ọzọ na akụkụ ụfọdụ, nke a pụrụ iji mee ihe ozugbo ma ọ bụ mgbe nkwadebe mmiri kwesịrị ekwesị.Refractory na-enweghị ụdị bụ ụdị mgbagha ọhụrụ na-enweghị calcination, na nguzogide ọkụ ya erughị 1580 ℃.
3. Kedu ihe bụ refractories a na-ejikarị?
Ntugharị ndị a na-ejikarị eme ihe gụnyere brik silica, brik ọkara silica, brik ụrọ, brik alumina dị elu, brik magnesia, wdg.
Ihe ndị pụrụ iche a na-ejikarị gụnyere brik AZS, brik corundum, brik magnesium chromium na-ejikọta kpọmkwem, brik silicon carbide, silicon nitride bonded silicon carbide brik, nitride, silicide, sulfide, boride, carbide na ndị ọzọ na-abụghị oxide refractories;Calcium oxide, chromium oxide, alumina, magnesium oxide, beryllium oxide na ihe ndị ọzọ na-etughari.
Ihe mkpuchi ọkụ nke a na-ejikarị na ihe mgbagha gụnyere ngwaahịa diatomite, ngwaahịa asbestos, bọọdụ mkpuchi ọkụ, wdg.
Ihe ntughari amorphous nke a na-ejikarị eme ihe gụnyere ihe ndozi ọkụ, ihe ọkụ na-egbochi ọkụ, ihe nkedo ọkụ, plastik ọkụ na-eguzogide ọkụ, apịtị na-eguzogide ọkụ, ihe egbe na-eguzogide ọkụ, ọkụ na-eguzogide ọkụ, ihe mkpuchi ọkụ, ọkụ ọkụ, ọkụ ọkụ. - ihe nkedo na-eguzogide ọgwụ, apịtị egbe, valvụ seramiiki, wdg.
4. Gịnị bụ anụ ahụ Njirimara nke refractories?
Ngwongwo anụ ahụ nke refractories na-agụnye ihe nhazi, ihe ọkụ ọkụ, ihe eji arụ ọrụ, ihe ọrụ na arụ ọrụ.
Njirimara nhazi nke refractories gụnyere porosity, nnukwu njupụta, mmịpụta mmiri, ikuku ikuku, nkesa pore size, wdg.
Ngwongwo ọkụ nke refractories na-agụnye conductivity thermal, thermal expansion coefficient, kpọmkwem okpomọkụ, ike okpomọkụ, thermal conductivity, thermal emissivity, wdg.
Ihe eji arụ ọrụ nke refractories gụnyere ike mkpakọ, ike ntanye, ike mgbanwe, ike torsional, ike shiee, ike mmetụta, iyi nguzogide, creep, bond ike, modulus, wdg.
Arụ ọrụ nke refractories gụnyere ọkụ ọkụ, ibu nro okpomọkụ, reheating ahịrị mgbanwe, thermal ujo nguzogide, slag resistance, acid resistance, alkali resistance, hydration resistance, CO erosion resistance, conductivity, oxidation resistance, etc.
Nrụ ọrụ nke ihe ndị na-emegharị ihe na-agụnye nkwụsi ike, slump, fluidity, plasticity, cohesiveness, resilience, coagulability, harddenability, wdg.
Oge nzipu: Mar-15-2022