Large mpukutu kanasonkhezereka waya kanasonkhezereka wosanjikiza ndondomeko mapangidwe

The mapangidwe ndondomeko yotentha kuviika kanasonkhezereka wosanjikiza ndi ndondomeko kupanga chitsulo-zinki aloyi pakati chitsulo masanjidwewo ndi kunja koyera nthaka wosanjikiza.Pamwamba pa workpiece amapanga chitsulo-zinc alloy wosanjikiza pa kutentha kuviika plating, kotero kuti chitsulo ndi koyera zinki wosanjikiza bwino pamodzi.The ndondomeko lalikulu mpukutu kanasonkhezereka waya akhoza kungoti: pamene chitsulo workpiece kumizidwa mu wosungunuka nthaka njira, woyamba nthaka ndi α-chitsulo (thupi pakati) olimba Sungunulani aumbike pa mawonekedwe.Uwu ndi kristalo wopangidwa ndi chitsulo chachitsulo cha matrix chosungunuka ndi maatomu a zinki pamalo olimba.Ma atomu awiri achitsulo amasakanikirana wina ndi mzake, ndipo kukopa kwamphamvu pakati pa maatomu kumakhala kochepa.

Chifukwa chake, zinc ikafika pakusungunuka mu kusungunuka kolimba, zinthu ziwiri za zinki ndi maatomu achitsulo zimagawikana, ndipo maatomu a zinki amagawika mu (kapena kulowetsedwa) mu matrix achitsulo amasuntha mumtambo wa matrix ndikupangika pang'onopang'ono. aloyi ndi chitsulo, pamene chitsulo chogawanika mu madzi osungunuka zinki amapanga intermetallic pawiri FeZn13 ndi nthaka ndi kumira pansi pa otentha malata mphika, ndiko kuti, zinki slag.Pamene workpiece imachotsedwa ku zinki leaching solution, pamwamba pazitsulo zoyera za zinki zimapangidwa, zomwe zimakhala ndi hexagonal crystal, ndipo chitsulo chake sichiposa 0.003%.
Hot dip galvanizing, yomwe imadziwikanso kuti hot dip galvanizing, ndi njira yopezera chophimba chachitsulo pomiza membala wachitsulo muzitsulo zosungunuka za zinki.Ndi chitukuko chofulumira cha kufalitsa kwamagetsi, zoyendetsa ndi kulankhulana, zofunikira zachitetezo pazigawo zachitsulo zikukwera kwambiri, ndipo kufunikira kwa galvanizing otentha akuwonjezeka.Kawirikawiri makulidwe a magetsi kanasonkhezereka wosanjikiza ndi 5 ~ 15μm, ndi mpukutu waukulu kanasonkhezereka waya wosanjikiza zambiri kuposa 35μm, ngakhale mpaka 200μm.Dip galvanizing yotentha imakhala ndi luso lophimba bwino, zokutira wandiweyani komanso zopanda organic.