Kusamala ntchito impermeable mpweya wokwanira njerwa

Kuyeretsa kunja kwa ng’anjo kwakhala chinthu chofunikira kwambiri pakupanga zitsulo zamakono. Kuwomba argon kuchokera pansi pa ladle ndi gawo lofunika kwambiri la kuyenga kunja kwa ng’anjo. Njerwa ya ladle air-permeable ndi chinthu chofunikira kwambiri kuti muzindikire njirayi, ndipo opanga zitsulo amakhudzidwa kwambiri. Njerwa yabwino yodutsa mpweya iyenera kukhala ndi mawonekedwe a moyo wautali wautumiki, kumveka bwino kwapansi, osawomba (zochepa), otetezeka komanso odalirika. Njerwa zaposachedwa zopumira makamaka zimaphatikizira mtundu wang’ono komanso mtundu wosakwanira. M’lifupi ndi kugawa slits wa anatumbula-mtundu ventilating njerwa ayenera zomveka anakonza malinga ndi ladle mphamvu, smelting zitsulo mtundu ndi chofunika mpweya permeability, kotero kupanga ndondomeko zovuta kwambiri; njerwa zopanda mpweya zomwe zimayendetsedwa ndi tinthu tating’onoting’ono tating’onoting’ono tomwe timapanga tomwe timapanga tomwe timagawanitsa mopanda malire kudzera pores, kupanga ndi kosavuta.

Njerwa yosasunthika yopanda mpweya imatengera kapangidwe ka mkati mwa mpweya wamkati ndi zida zolimba kwambiri: malo ogwirira ntchito pachimake cha njerwa ndi kapangidwe kosasunthika, ndipo chida chachitetezo chimatengera kapangidwe kake. Pamene njira ya gasi yowonongeka ikuwoneka, imasonyeza mpweya wodutsa Ngati kutalika kotsalira kwa njerwa sikukwanira, njerwa yopuma iyenera kusinthidwa.

Chithunzi 1 Njerwa yopumira

Poyendetsa ndi kuyika njerwa zowonongeka ndi mpweya, m’pofunika kuonetsetsa kuti ulusi wa mipope zitsulo za mchira sunawonongeke, kuti musapangitse kugwirizana kwa chitoliro chotayirira ndi kutuluka kwa mpweya, zomwe zidzakhudza kutuluka kwa argon ndikuwomba. kutentha kwa mpweya; kuonetsetsa kuti mipope zitsulo mchira musalowe fumbi ndi sundries; onetsetsani kuti njerwa zodutsa mpweya Nkhope yogwira ntchitoyo siyikuphimbidwa ndi matope amoto kapena zipangizo zina kuti musawombere pansi osapambana. Pakuyika kapena kugwiritsa ntchito, onetsetsani kuti payipiyo yalumikizidwa mwamphamvu ndipo sichikutulutsa mpweya, apo ayi kukakamiza kwa argon sikukwanira, zomwe zingakhudze kukoka ndikupangitsa kuti kuphulika kugwe.

Aloyiyo imawonjezedwa molawirira kwambiri pomwe chosinthira chikagundidwa, ndipo mulingo wachitsulo chosungunula mu ladle ndi wotsika kwambiri, ndipo malo osungunuka a aloyi otsika komanso otheka kwambiri amatha kupangitsa kuti pachimake cha njerwa chisatheke bwino. Kuonjezera apo, kuwonjezera msanga kwa alloying kumabweretsa kutentha kochepa pansi pa ladle; ngati argon kuwomba ntchito si standardized, ndi lalikulu argon mpweya si kusonkhezeredwa mu nthawi pambuyo pogogoda, izo mosavuta kuchititsa vuto kuwomba pa siteji oyambirira kuyenga.

Kulowetsedwa kwakukulu pansi pa ladle, pali ladle zambiri zapaintaneti, slag imatha kutulutsidwa pakapita nthawi pambuyo pomaliza kuthira zitsulo, kukonza kotentha sikuwomba njerwa yopuma, nthawi yotentha ya ladle ndi yayitali, kutentha. wa chitsulo chosungunula kugunda ndi otsika, etc., onse mosavuta pamwamba pa njerwa pachimake Zotsalira zitsulo zitsulo ndi slag zitsulo n’zosavuta kutumphuka pamwamba ndi zimakhudza permeability mpweya.