Zomwe Zimayambitsa Kuwonongeka ndi Njira Zosawonongeka za Aluminiyamu Aloyi mu Masitima Othamanga

Thupi ndi mbedza ya masitima othamanga kwambiri amapangidwa pogwiritsa ntchito aloyi ya aluminiyamu, yomwe imadziwika ndi zabwino zake monga kachulukidwe kakang'ono, kuchuluka kwamphamvu ndi kulemera kwamphamvu, kukana kwa dzimbiri, komanso magwiridwe antchito otsika kwambiri.Pochotsa zida zachitsulo ndi aluminiyumu, kulemera kwa sitimayo kumachepetsedwa kwambiri, zomwe zimapangitsa kuti mphamvu zichepetse, kuchepetsa kuwonongeka kwa chilengedwe, ndikupanga phindu lachuma ndi chikhalidwe.

Komabe, ma aluminiyamu ndi ma aluminiyamu aloyi ali ndi mphamvu zogwira ntchito kwambiri.Ngakhale kupanga filimu wandiweyani wa okusayidi ikakhala ndi mpweya m'chilengedwe, zomwe zimapereka kukana kwa dzimbiri bwino kuposa chitsulo wamba, dzimbiri zitha kuchitikabe pomwe aloyi ya aluminiyamu imagwiritsidwa ntchito m'masitima othamanga kwambiri.Magwero amadzi owononga, kuphatikizapo kuwomba, kusungunuka kwa mumlengalenga, ndi kutuluka kwa madzi kuchokera pansi panthawi yoimika magalimoto, akhoza kusokoneza filimu ya oxide.Kuwonongeka mu aloyi ya aluminiyamu yomwe imagwiritsidwa ntchito m'masitima othamanga kwambiri kumawoneka ngati dzimbiri yunifolomu, dzimbiri, zimbiri zapang'onopang'ono, komanso kuwonongeka kwa nkhawa, zomwe zimapangitsa kuti zikhale zovuta kutengera chilengedwe komanso katundu wa aloyi.

Pali njira zingapo zopangira anticorrosion ya aloyi ya aluminiyamu, monga kugwiritsa ntchito zokutira zoteteza kuti zilekanitse bwino gawo lapansi la aluminium alloy ku chilengedwe chakunja.Chophimba chodziwika bwino cha anticorrosive ndi epoxy resin primer, chomwe chimagwiritsidwa ntchito kwambiri pakukana madzi abwino, kumamatira kolimba kwa gawo lapansi, komanso kugwirizanitsa ndi zokutira zosiyanasiyana.

Komabe, poyerekeza ndi njira zopewera dzimbiri, njira yothandiza kwambiri ndi mankhwala oletsa kuphatikizika.Pambuyo pa passivation mankhwala a aluminiyamu ndi zotayidwa aloyi, mankhwala makulidwe ndi makina mwatsatanetsatane amakhalabe osakhudzidwa, ndipo palibe kusintha maonekedwe kapena mtundu.Njirayi ndi yabwino kwambiri ndipo imapereka filimu yokhazikika komanso yosagwirizana ndi dzimbiri poyerekeza ndi zokutira zachikhalidwe zoletsa kuwononga.Kanema wa passivation wopangidwa ndi aluminiyumu alloy passivation treatment ndi wokhazikika ndipo ali ndi kukana kwa dzimbiri kuposa zokutira zachikhalidwe za anticorrosive, ndi phindu lowonjezera la kudzikonza.

Yathu ya chromium-free passivation solution, KM0425, ndiyoyenera kuphatikizira zida za aluminiyamu, ma aloyi a aluminiyamu, ndi zinthu zopangidwa ndi aluminiyamu ya die-cast, zomwe zimakulitsa kukana kwawo kwa dzimbiri.Ndi chinthu chatsopano komanso chapamwamba kwambiri chopangira zinthu zambiri za aluminiyamu.Wopangidwa ndi ma organic acid, zinthu zapadziko lapansi zomwe sapezeka, zoletsa kutukula kwapamwamba, komanso kachulukidwe kakang'ono ka molecular-weight passivation accelerators, alibe asidi, alibe poizoni, komanso alibe fungo.Mogwirizana ndi miyezo yamakono ya RoHS ya chilengedwe, kugwiritsa ntchito njira yodutsayi kumatsimikizira kuti njira yodutsayi sikuwononga mtundu wapachiyambi ndi miyeso ya workpiece pamene ikuwongolera kwambiri kukana kwa aluminiyamu kutsitsi mchere.