Njerwa wamba zomangira:Mukangoganizira mtengo, mutha kusankha njerwa zotsika mtengo wamba, monga njerwa zadothi. Njerwa iyi ndi yotchipa. Njerwa imangotengera $0.5~0.7/block. Ili ndi ntchito zambiri. Komabe, kodi ndizoyenera kugwiritsidwa ntchito? Ponena za zofunikira, ngati sizikukwaniritsidwa, zingayambitse kukonzanso pafupipafupi chifukwa cha kutha, ndipo sizingatheke kugwiritsidwa ntchito moyenera. Kukonzanso mobwerezabwereza kungayambitse kukonzanso koyambirira komanso kuwonongeka kwa zida, zomwe sizoyenera kupindula.
Njerwa zadongo ndi zida za acidic zofooka, zokhala ndi kachulukidwe ka thupi pafupifupi 2.15g/cm3 ndi alumina yokwanira ≤45%. Ngakhale refractoriness ndi mkulu monga 1670-1750C, izo makamaka ntchito pa kutentha osiyanasiyana osiyanasiyana 1400C. Izi zitha kugwiritsidwa ntchito potsatira zofunikira. Kutentha, mbali zina zosafunika, kutentha kwabwino kwamphamvu kwa njerwa zadongo sipamwamba, 15-30MPa yokha, izi zimagwirizana ndi zizindikiro za mankhwala, zomwe ndi chifukwa chake njerwa zadongo ndizotsika mtengo.
Njerwa zapamwamba za alumina refractory:Njerwa zapamwamba za alumina zimakhala ndi magiredi anayi kutengera alumina. Chifukwa chakuti zitsulo zotayidwa za aluminiyamu ndizoposa za njerwa zadongo, dzina la njerwa zapamwamba za alumina zimachokera ku izi. Malinga ndi kalasi, mankhwalawa angagwiritsidwe ntchito pa kutentha kwakukulu kwa 1420 mpaka 1550 ° C. Akagwiritsidwa ntchito, amatha kuyatsidwa ndi moto. Kutentha kwabwino kwamphamvu kwamphamvu kumafika 50-80MPa. Mukayatsidwa ndi malawi, kutentha kwa pamwamba sikungakhale kwakukulu kuposa kutentha kwa ntchito. Izi zimakhudzidwa makamaka ndi kachulukidwe kazinthu zomwe zimapangidwa ndi alumina.
Njerwa za Mullite:Njerwa za Mullite refractory zimakhala ndi refractoriness yapamwamba komanso kutentha kwambiri. Amapezeka mumitundu yolemetsa komanso yopepuka. Njerwa zolemera za mullite zimaphatikizapo njerwa zosakanikirana ndi njerwa za sintered mullite. The product's Thermal shock resistance ndi yabwino; Zopangira zopepuka zimakhala ndi zabwino zotsekemera zamafuta. Zopangira zopepuka ndi: JM23, JM25, JM26, JM27, JM28, JM30, JM32. Zinthu zopepuka za mullite zimatha kuyatsidwa ndi malawi, ndipo ma pores amagawidwa mofanana Molingana ndi mphamvu yokoka komanso zopangira zomwe zili muzinthuzo, JM23 ingagwiritsidwe ntchito pansi pa madigiri a 1260, JM26 pansi pa madigiri 1350, ndipo JM30 ingagwiritsidwe ntchito kutentha kwakukulu kwa madigiri 1650. Ichinso ndichifukwa chake njerwa za mullite ndizokwera mtengo.
Njerwa ya Corundum:Njerwa ya Corundum ndi njerwa yapamwamba kwambiri yokhala ndi aluminiyamu yoposa 90%. Chida ichi chilinso ndi zinthu zophatikizika komanso zosakanikirana. Malinga ndi zopangira, mankhwalawa akuphatikizapo: njerwa yosakanikirana ya zirconium corundum (AZS, njerwa yosakanikirana), njerwa ya chromium corundum, ndi zina. ndi madigiri 1,700. Mtengo wa njerwa iyi imasiyanasiyana kuchokera pa masauzande angapo mpaka masauzande a yuan pa tani chifukwa cha zinthu monga momwe amapangira komanso zomwe zili.
Njerwa za mpira wa Alumina:Njerwa za mpira wa alumina ndi zokwera mtengo kwambiri zotsekera njerwa, zomwe zimawononga pafupifupi RMB 10,000 pa tani. Chifukwa cha madera osiyanasiyana ogwiritsira ntchito komanso njira zopangira, kuphatikiza zomwe zili ndi alumina, ndi zina zambiri, mtengo wazinthuzo uyenera kukhala wokwera. , monga mwambi umanenera, kufunika kwa ndalama.
Zomwe zili pamwambazi ndizoyambira za kachulukidwe, kukana kutentha kwakukulu ndi mtengo wa njerwa zotsutsa. Nthawi zambiri, kuchuluka kwa voliyumu ya zinthu zowumitsa kumayesedwa musanachoke kufakitale. Kuchulukana kwa voliyumu: kumawonetsa kuchuluka kwa zinthu zowuma mpaka kuchuluka kwake, komwe kumawonetsedwa mu g/cm3.
Nthawi yotumiza: Jan-26-2024
