Cov txheej txheem tsim ntawm kub dip galvanized txheej yog txheej txheem ntawm kev tsim hlau-zinc alloy ntawm cov hlau matrix thiab sab nraud ntshiab zinc txheej.Qhov saum npoo ntawm lub workpiece tsim cov hlau-zinc alloy txheej thaum lub sij hawm kub dip plating, kom cov hlau thiab ntshiab zinc txheej yog zoo ua ke.Cov txheej txheem ntawm cov yob loj galvanized hlau tuaj yeem piav qhia yooj yim xws li: thaum cov hlau ua haujlwm tau muab tso rau hauv cov kua zinc molten, thawj zinc thiab α-hlau (lub cev-centered) cov khoom yaj yog tsim rau ntawm qhov sib txuas.Qhov no yog siv lead ua tsim los ntawm matrix hlau hlau yaj nrog zinc atoms nyob rau hauv lub xeev khoom.Ob lub atoms hlau yog fused nrog ib leeg, thiab lub gravitational attraction ntawm cov atoms yog me me.
Yog li ntawd, thaum zinc ncav cuag saturation nyob rau hauv cov khoom yaj, ob lub ntsiab ntawm zinc thiab hlau atoms yog diffused nrog ib leeg, thiab zinc atoms diffused rau hauv (los yog infiltrated rau hauv) hlau matrix migrate nyob rau hauv lub lattice ntawm lub matrix thiab maj mam tsim. ib qho hlau nrog cov hlau, thaum cov hlau diffused rau hauv cov kua zinc molten ua ib qho intermetallic compound FeZn13 nrog zinc thiab tog rau hauv qab ntawm lub lauj kaub kub galvanized, uas yog, zinc slag.Thaum lub workpiece raug tshem tawm los ntawm zinc leaching tov, nto ntawm cov ntshiab zinc txheej yog tsim, uas yog hexagonal siv lead ua, thiab nws cov ntsiab lus hlau tsis ntau tshaj 0.003%.
Kub dip galvanizing, tseem hu ua kub dip galvanizing, yog ib txoj hauv kev kom tau txais cov hlau npog los ntawm immersing tus neeg hlau hauv cov tshuaj zinc molten.Nrog rau txoj kev loj hlob sai ntawm high-voltage kis tau tus mob, kev thauj mus los thiab kev sib txuas lus, kev tiv thaiv kev tiv thaiv ntawm steel qhov chaw tau dhau los ua siab dua thiab siab dua, thiab qhov kev thov rau kub-dip galvanizing kuj nce.Feem ntau lub thickness ntawm hluav taws xob galvanized txheej yog 5 ~ 15μm, thiab cov yob loj galvanized hlau txheej feem ntau yog ntau tshaj 35μm, txawm tias mus txog 200μm.Kub dip galvanizing muaj peev xwm npog zoo, tuab txheej thiab tsis muaj organic inclusions.
Post lub sij hawm: 19-12-22