Ntsev los nag teeb meem ntawm refractory castables thaum siv
ntsev los nag rau ntawm qhov chaw ntawm refractory castables yog lwm yam tseem ceeb uas exacerbates cov qauv kev puas tsuaj ntawm castables. Thaum lub sij hawm curing los yog ntuj qhuav txheej txheem ntawm refractory castables, raws li dej evaporates, ib co ntsev xws li soluble carbonates, sulfates, chlorides, thiab phosphates mloog zoo rau saum npoo ntawm refractory castables thiab crystallize. Qhov no tshwm sim feem ntau hu ua salting tawm.
Thaum cov dej evaporates los ntawm qhov chaw ntawm refractory castables, cov ions tsiv teb tsaws thiab sib sau ua ke nrog cov dej molecules los ntawm sab hauv ntawm cov castables mus rau saum npoo, los yog hnov mob nrog acidic gases nyob rau hauv cov huab cua ntawm cov castables. Cov ntsev tsim los ntawm cov tshuaj tiv thaiv hydrate yog concentrated rau ntawm qhov chaw, thiab cov ntsev no crystallize thiab precipitate vim ntau tshaj cov dej solubility.
Qhov tseeb, tag nrho cov ntsev ntsev uas muaj cov dej siv lead ua, suav nrog chlorides, sulfates, carbonates, thiab lwm yam, tau dhau los ua cov txheej txheem ntawm cov dej siv lead ua tshem tawm, nrog rau cov kev hloov pauv hauv crystal morphology thiab ntim. Qhov no yog ib qho ntawm cov laj thawj rau cov qauv saum npoo pulverization, tev, thiab txhaws ntawm castables thaum lub sij hawm solidification hauv huab cua.
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