Pre - mankhwala Buku losavuta ndondomeko ndi basi chisanadze - mankhwala ndondomeko, yotsirizira anawagawa basi kutsitsi ndi basi kuviika kutsitsi njira ziwiri.The workpiece ayenera pamwamba mankhwala kuchotsa mafuta ndi dzimbiri pamaso kupopera mbewu mankhwalawa.Mu gawoli ntchito madzi ambiri, makamaka dzimbiri chochotsa, degreasing wothandizira, tebulo kusintha, phosphating wothandizira ndi zina zotero.
Mu gawo processing kapena msonkhano pamaso pa mzere kupanga utoto, chidwi ayenera kuperekedwa kwa kukhazikitsidwa kwa zofunika kugula, mayendedwe, kusungirako ndi kugwiritsa ntchito amphamvu asidi ndi alkali dongosolo, kupereka antchito ndi zofunika zoteteza zovala, otetezeka ndi odalirika kuvala, kasamalidwe, kasinthidwe ka zipangizo, komanso chitukuko cha njira zochizira mwadzidzidzi ndi njira zopulumutsira pakakhala ngozi.Kachiwiri, mu gawo la pretreatment la mzere wopanga utoto, chifukwa cha kuchuluka kwa gasi, zinyalala zamadzimadzi ndi zinthu zina zitatu zinyalala, kotero potengera miyeso yachitetezo cha chilengedwe, ndikofunikira kukonza utsi wa mpweya, kutulutsa kwamadzi ndi zinthu zina. zida zitatu zothandizira zinyalala.
Ubwino wa workpiece wokonzedweratu uyenera kukhala wosiyana chifukwa cha njira zosiyanasiyana zopangira mankhwala komanso njira yopangira zokutira.Bwino processing wa workpiece, pamwamba mafuta, dzimbiri kuchita, pofuna kupewa nthawi yaifupi dzimbiri kachiwiri, ambiri ayenera kukhala pretreatment pambuyo angapo njira, phosphating kapena passivation mankhwala: pamaso kupopera mbewu mankhwalawa ufa, komanso ayenera phosphating workpiece. kwa kuyanika, kumadzi ake pamwamba.Small mtanda single kupanga, makamaka ntchito zachilengedwe mpweya kuyanika, dzuwa kuyanika, mpweya kuyanika.Ndipo ntchito yochuluka yotaya, nthawi zambiri imatenga kuyanika kutentha pang'ono, pogwiritsa ntchito uvuni kapena kuyanika msewu.
Kupopera mankhwala ❖ kuyanika ufa kupanga bungwe
Kwa workpiece yaying'ono, chipangizo chopukutira pamanja nthawi zambiri chimatengedwa, ndipo pagulu lalikulu la batchi, chida chamanja kapena chodziwikiratu chimagwiritsidwa ntchito.Kaya kufumbi pamanja kapena kwadzidzidzi, kuwongolera bwino ndikofunikira kwambiri.Kuonetsetsa kuti kupopera mbewu mankhwalawa workpiece ufa yunifolomu, mogwirizana makulidwe, kuteteza kutsitsi woonda, kutayikira kutsitsi, misozi ndi zolakwika zina.
❖ kuyanika kupanga mzere mu ndondomeko, komanso ayenera kulabadira mbedza mbali workpiece, asanalowe machiritso, ayenera kutsatira ufa wake mmene ndingathere adzawomba kunja, kupewa owonjezera ufa kuchiritsa mbedza, ena kuchiritsa kuchotsa ufa yotsalira. pamaso pa mavuto, ayenera nthawi yake akuvula mbedza ali solidified ufa filimu, conductive kuonetsetsa mbedza zabwino, ndi chiwerengero cha zinthu zakale ufa.
Kuwongolera kupanga kwa njira yochizira mu mzere wokutira
Mchitidwewu ayenera kulabadira: sprayed workpiece, ngati ndi mtanda yaing'ono ya kupanga limodzi, mu ng'anjo kuchiritsa pamaso kulabadira kupewa kugwa ufa, monga chodabwitsa ufa akusisita, ayenera yake kutsitsi ufa.Pamene kuphika, ndondomeko okhwima ndi kutentha, nthawi kulamulira, tcherani khutu kupewa kusiyana mitundu, pa kuphika kapena nthawi yochepa chifukwa cha kusakwanira kuchiritsa.
Pakuti yochuluka yobereka basi workpiece, mu kuyanika msewu pamaso komanso mosamala fufuzani ngati kutayikira kutsitsi, kutsitsi woonda kapena m'deralo ufa chodabwitsa, monga anapeza mbali osayenera, ayenera kutsekedwa kuteteza kulowa kuyanika msewu, mmene ndingathere. tsitsani kupopera.Ngati chogwiritsira ntchito payekha sichili oyenerera chifukwa cha kupopera kopyapyala, chitha kupakidwanso ndikulimbitsidwanso pambuyo pochiritsa.
Nthawi yotumiza: Jan-17-2022