Ndi zinthu ziti zomwe zikufunika chisamaliro pakumanga kwa njerwa zopepuka zowumbidwa m’nyengo yozizira?

Njerwa yopepuka yopepuka ndi imodzi mwazinthu zakale zomangira. Itha kugwiritsidwa ntchito pafupifupi kulikonse pantchito yomanga monga momwe zimakhalira ndi zomangamanga. Nthawi zambiri timakhala ndi zofunikira pakumanga. Kenako, kumakhala kozizira kwambiri m’nyengo yachisanu ndipo pamakhala zofunika pa ntchito yomanga. Tiyeni timvetse zomwe ziyenera kuperekedwa pa ntchito yomanga yozizira.

Nthawi yomanga yozizira

Pamene kutentha kwa kunja kwa tsiku ndi tsiku kumakhala kotsika kapena kofanana ndi 5 ° C kwa masiku 5 otsatizana, kapena kutentha kwatsiku ndi tsiku kumatsika pansi pa 0 ° C, nthawi yomanga yozizira imalowetsedwa.

Kutentha kwa mpweya kukakhala kochepa kuposa 0 ° C, matope opangira miyala omwe amagwiritsidwa ntchito pomanga ndi osavuta kuzizira, ndipo chinyezi m’magulu amatope chimakula chifukwa cha kuzizira. Kuphatikizika kwa msoko wa phulusa kumawonongeka. Zimawonjezeranso porosity ya mafupa a phulusa. Izi zimachepetsa kwambiri ubwino ndi mphamvu za zomangamanga.

Kumanga ng’anjo m’nyengo yozizira kuyenera kuchitika kumalo otentha

Masonry mafakitale ng’anjo m’nyengo yozizira ayenera kuchitidwa mu Kutentha malo. Kutentha kwa malo ogwirira ntchito ndi kuzungulira nyumbayo sikuyenera kutsika kuposa 5 ℃. Kusakaniza kwa refractory slurry ndi zinthu zosaoneka bwino zokanira kuyenera kuchitidwa mu shedi yofunda. Simenti, formwork ndi zinthu zina ziyenera kusungidwa m’malo otentha. Pamene matope a simenti amagwiritsidwa ntchito pomanga njerwa zofiira za chitoliro kunja kwa ng’anjo, njira yoziziritsa ingagwiritsidwe ntchito, koma malamulo apadera a njira yozizirirapo ayenera kukhazikitsidwa.

Kutentha kwachilengedwe kwa zomanga za refractory m’nyengo yozizira

Pomanga ng’anjo zamakampani m’nyengo yozizira, kutentha kozungulira malo ogwirira ntchito ndi zomangamanga sikuyenera kutsika kuposa 5 ° C. Ng’anjoyo yamangidwa, koma ng’anjoyo siingakhoze kuphikidwa nthawi yomweyo. Njira zowumitsa ziyenera kuchitidwa, apo ayi kutentha kozungulira nyumbayo sikuyenera kutsika 5 ° C.

Refractory kutentha kulamulira

Kutentha kwa zida zodzitchinjiriza ndi midadada yopangiratu kuyenera kukhala pamwamba pa 0 ℃ musanayambe kumanga.

Kutentha kwa refractory slurry, refractory pulasitiki, refractory spray paint and simenti refractory castable pomanga. Komanso sayenera kutsika kuposa 5 ° C. Zosakaniza zophatikizika ndi dongo, zotayira za sodium silicate refractory, ndi phosphate refractory castables siziyenera kutsika kuposa 10 ° C pakumanga.

Kutentha kwa refractory zomangamanga kumanga m’nyengo yozizira

Pomanga ng’anjo za mafakitale m’nyengo yozizira, thupi lalikulu la ng’anjo ya mafakitale ndi malo ogwirira ntchito ayenera kukhala ndi malo otentha. Kutentha ndi kuwombera kuyenera kuchitika pakufunika. Kusakaniza kwa moto slurry ndi zoponya zokanira ziyenera kuchitidwa m’malo otentha. Simenti, zoumba, njerwa, matope ndi zinthu zina ziyenera kutumizidwa mu wowonjezera kutentha kuti zisungidwe.

Zomwe zili pamwambazi ndizofotokozera mwachidule momwe mungamangire njerwa zopepuka m’nyengo yozizira. Popeza kutentha m’nyengo yozizira kumakhala kochepa, mawu oyamba pamwambawa ayenera kutsatiridwa. Ntchito yomangayo siyenera kukhala yolimba kwambiri ndipo iyeneranso kuphatikizidwa ndi momwe zinthu zilili panopa. Pokhapokha pochita mosamalitsa sitepe iliyonse bwino, zotsatira za zomangamanga zidzakhala zokhutiritsa ndipo nyumbayo idzatsimikiziridwa.