Zopanda bangazitsulo zowotcherera maunaali ndi mphamvu zotsutsana ndi dzimbiri komanso anti-oxidation.Ntchito chitetezo makina, mafakitale, ulimi, zomangamanga, etc. Stainless zitsulo waya kuwotcherera mauna kusankha mkulu khalidwe zosapanga dzimbiri zitsulo waya, kudzera mwatsatanetsatane basi makina kuwotcherera, mankhwala ukonde pamwamba yosalala, kapangidwe olimba, umphumphu wamphamvu, ndi kukana dzimbiri.
Mayeso a nitric acid point of stainlesszitsulo zowotcherera mauna.Chinthu chodziwika bwino cha machubu achitsulo chosapanga dzimbiri ndi kukana kwawo kwa dzimbiri kukhazikika ndikuchepetsa nitric acid.Katunduyu amalola kuti asiyanitsidwe mosavuta ndi zitsulo zina zambiri kapena ma alloys.Komabe, zitsulo zapamwamba za carbon 420 ndi 440 zimawonongeka pang'ono poyesa nitric acid point, ndipo zitsulo zopanda chitsulo zidzawonongeka nthawi yomweyo zikakumana ndi nitric acid.Kuchepetsa nitric acid kumawononga kwambiri carbon steel.
Kuyesa kwa sulfuric acid kumizidwa kwa waya wa chitsulo chosapanga dzimbiri.Kuyesera kumeneku kunagwiritsidwa ntchito kusiyanitsa 302 ndi 304 kuchokera ku 316 ndi 317. Mphepete mwachitsanzoyo ndi yabwino kwambiri ndipo kenako imanyowa mu nitric acid ndi chiwerengero cha 20-30% ndi kutentha kwa 60-66.℃kwa kutsuka ndi passiv kwa theka la ola.The sulfuric acid test zosungunulira ndi voliyumu ndende ya 10% ndi kutentha kwa 71℃.Pamene 302 ndi 304 amalowa mu yankho ili, amawonongeka mofulumira ndipo amapanga zitsanzo ndi zigawo zodziwika bwino kuti zifanane.Mwa njira iyi, kuyesa kungakhale kolondola kwambiri.
Copper sulfate spot test for stainlesszitsulo zowotcherera mauna.Mayeso a copper sulfate point ndiyo njira yosavuta komanso yabwino kwambiri yosiyanitsa mwachangu zitsulo wamba za kaboni kumitundu yonse yazitsulo zosapanga dzimbiri.Mlingo wa mkuwa wa sulphate womwe umagwiritsidwa ntchito ndi 5-10%.Asanayesedwe nsonga, malo oyeserawo ayenera kutsukidwa bwino ndi mafuta kapena zonyansa zosiyanasiyana, ndipo malo ang’onoang’ono ayenera kupukutidwa ndi nsalu yofewa, kenako botolo la dontho liyenera kugwiritsidwa ntchito pogwetsera mkuwa wa sulfate m’malo oyeretsedwawo.Chitsulo cha kaboni wamba kapena chitsulo chimapanga pamwamba pa mkuwa pakangopita masekondi angapo, pamene pamwamba pa chitsulo chosapanga dzimbiri sichimayika mkuwa kapena kusonyeza mtundu wa mkuwa.
Kumasulira kwa mapulogalamu omasulira, ngati pali cholakwika chonde khululukireni.
Nthawi yotumiza: 27-05-21