Mitundu yanji ya njerwa zopumira nthawi zambiri amagawidwa?

Njerwa zopumira: Ndi chinthu chatsopano chokhala ndi moyo wautali, kupulumutsa mphamvu ndikuchepetsa kugwiritsa ntchito, yokhala ndi kapangidwe koyenera, kukhazikika kwamafuta, kukana kukokoloka, kukana kukokoloka, kukana kukokoloka, komanso kukana permeability, kugunda kwamphamvu, magwiridwe antchito otetezeka komanso odalirika, ndi ntchito. moyo wautali ndi makhalidwe ena.

1. Njerwa yodutsa mpweya wa ladle: Iyi ndi njerwa yamphamvu kwambiri yotha kulowa mpweya komanso yolimba kwambiri yokana kukanika! Njerwa ya ladle air-permeable imapangidwa pogwiritsa ntchito njira yowuzira ladle argon. Kulowa kwachitsulo chosungunula nthawi zambiri kumakhala kochepa, kotero njerwa ya ladle air-permeable njerwa Muyezo wa kufananitsa miyeso yakunja uli ndi mlingo wina wokhazikika. Kuphatikiza apo, njerwa zokhala ndi mpweya wa ladle zimatha kugawidwa kukhala njerwa zosakanikirana ndi mpweya, njerwa zowongoka molunjika komanso zomata njerwa zolowera mpweya molingana ndi njira zosiyanasiyana za njerwa zolowera mpweya.

2. Furnace bottom air-permeable brick: It is a relatively common air-permeable brick, because it is mainly used in the furnace bottom, so it has strong high temperature resistance.