Ubwino wa China uli bwanji njerwa zaumbali?

Bwino ndithu,

Choyamba: Yang’anani pa chiŵerengero chodetsedwa cha njerwa zowunikidwa. Nthawi zambiri, zonyansa zidzapangidwa panthawi yowotcha njerwa zowonongeka molingana ndi kuchuluka kwa zosakaniza, zomwe palibe vuto. Komabe, ena opanga nthawi zambiri samatulutsa molingana ndi kuchuluka kwa zinthu zomwe zimagwiritsidwa ntchito, kotero kuti njerwa za sintered refractory zisakhale ndi dongosolo lolimba, zomwe zimapangitsa kuti khalidwe la njerwa zotsekedwa likhale losavomerezeka, ndipo potsiriza limanyenga ogula ndi mitengo yamtengo wapatali. Chifukwa chake mukagula njerwa za refractory, mutha kuyang’ana pamwamba pake. Nthawi zambiri, pamwamba pa njerwa zotsutsana ndi zonyansa zambiri zimakhala zovuta kwambiri, pamene njerwa zamtundu wapamwamba zimakhala ndi mtundu umodzi komanso zosalala, zomwe tingathe kuzisiyanitsa mwachidwi kuchokera pamwamba.

Yachiwiri ndi kuyesa sintering njerwa refractory. Njira imeneyi ndi yothandiza kwambiri. Nthawi zambiri, tikagula njerwa zokana, tidzatenga zitsanzo kuti tiyesedwe pasadakhale. Makamaka tisanaganize zogula, tiyenera kulola wopanga kuyesa kutentha kwambiri kuti awone ngati sintering index ya njerwa ya refractory ndi yofanana ndi index yokhazikika. Malingana ngati zotsatira zoyesera zimakhala ndi kupatuka pang’ono, khalidwe la njerwa likadali lovomerezeka, lomwenso ndi njira yabwino. Ngati muli ndi kukayikira za njira yoyamba, mungagwiritse ntchito njira yachiwiri yoyesera.

Chachitatu: Ndiko kuyeza kulemera kwa unit. Nthawi zambiri, padzakhala zolemera zingapo za aluminiyamu yapamwamba kwambiri, ndipo mtengo udzakhala wosiyana ngati kulemera kwake kuli kosiyana. Pamaso pa makasitomala omwe samamvetsetsa, nthawi zambiri amanyenga ogula ndi katundu wamba.

Chachinayi: Yang’anani mtundu wa njerwa zomangira. Ubwino wa njerwa zotsutsa ndizosavuta kusiyanitsa ndi mtundu. Nthawi zambiri njerwa zomangira zokhala ndi aluminiyamu yayikulu zimasanduka zabuluu ndi zoyera. Kuti

Chachisanu: Yang’anani kukhazikika kwa njerwa, kaya pamwamba ndi yovuta kwambiri, ndipo ngodya zosowa ndizochepa. Kuti

Chofunika kwambiri ndi chakuti wamalonda wamba akhoza kutunga madzi ndikuwonjezera kulemera kwa unit. Choncho, ndi bwino kupeza wopanga kugula njerwa, ndipo osachepera pali chitsimikizo cha khalidwe.