Cov dej ua kua ntawm cov nruas hlau tsis muaj teeb meem ntawm qhov kub li qub, ntsev, alkali, thiab lwm cov khoom sib xyaw. Txawm li cas los xij, cov hlau nruas tsis tuaj yeem siv los tua cov kua dej, xws li sulfuric acid ntawm qhov kub siab tshaj 60 degrees, sulfuric acid ntawm cov ntsiab lus siab tshaj 75 feem pua, thiab cov nitric acid ntawm cov ntsiab lus siab tshaj 30 feem pua.
Hlau nruas muaj cov kabmob kub ntau tshaj plaws tsis hais txog lawv cov khoom zoo. Thaum cov kab ntau dhau no dhau lawm, cov hlau drums muaj kev cuam tshuam rau kev deformation thiab kev laus. Yog li, peb yuav tsum them sai sai rau cov ntsiab lus thaum siv hlau nruas rau kua. Seb qhov ntsuas kub ntawm cov kua muaj nyob hauv tswj nrog qhov ntim ntawm cov hlau nruas.
Feem ntau, qhov siab tshaj plaws tshav kub uas lub nruas hlau tuaj yeem nqa tau yog ib puas yim caum qib, thiab qhov cua sov qis tshaj plaws yog rho tawm txog xya caum degrees. Yog li no, qhov kub ntawm cov kua siv nyob rau hauv cov nruas hlau yuav tsum nyob nruab nrab ntawm 40 degrees thiab 60 degrees siab tshaj xoom. Yog tias cov nqi ntau dhau no thiab cov kua uas muaj qhov hnyav dua lossis siab dua siv, cov nruas hlau yuav tsum muaj kev tiv thaiv kom tsis txhob deformation ntawm lub nruas.https: //www.fhpails.com/
