Cov txheej txheem ntau lawm ntawm kub-dip galvanized steel yeeb nkab

1.Alkali ntxuav: qee cov kav hlau muaj cov roj stains ntawm qhov chaw, yog li yuav tsum tau ntxuav alkali.

2.Pickling: hydrochloric acid yog xaiv rau pickling kom tshem tawm cov tawv nqaij oxide ntawm cov yeeb nkab steel.

3.Rinsing: feem ntau yog tshem tawm cov residual acid thiab hlau ntsev txuas rau steel yeeb nkab nto.

4.Dipping pab: lub luag hauj lwm ntawm flux yog tshem tawm tag nrho cov impurities ntawm lub steel yeeb nkab nto, xyuas kom meej kev sib cuag ntawm cov yeeb nkab steel thiab zinc tov, thiab tsim ib tug zoo txheej.

5.Kev ziab: feem ntau yog tiv thaiv cov yeeb nkab steel los ntawm kev nkag mus rau hauv lub lauj kaub zinc thiab blasting.

6.Kub dip galvanizing: qhov kub ntawm zinc kua hauv lub lauj kaub zinc yuav tsum nruj me ntsis tswj ntawm 450 + 5 ° C, cov yeeb nkab steel yuav tsum muab tso rau hauv lub qhov cub galvanizing thiab dov rau hauv peb lub zinc dipping spirals hauv lub tshuab galvanizing.Peb lub spirals muaj cov theem sib txawv, ua rau cov yeeb nkab steel inclined ntawm cov spirals.Nrog rau kev sib hloov ntawm cov spirals, cov yeeb nkab steel txav mus rau hauv ib sab los tsim ib lub kaum sab xis ntawm inclination, thiab tom qab ntawd nkag mus rau hauv zinc da dej, txuas ntxiv mus rau pem hauv ntej, thiab cia li poob rau ntawm qhov swb rail hauv lub lauj kaub zinc;Thaum cov yeeb nkab steel yog nqa mus rau qhov sib nqus sib nqus, nws yuav tau txais kev nyiam thiab txav mus rau qhov rub lub log khiav.

7.Tshuab txhuam hniav sab nraud: Cov yeeb nkab steel kis dhau los ntawm cov tshuab sab nraud kom haum rau cov cua thiab tshuab tawm ntawm cov yeeb nkab steel los ntawm cov yeeb nkab steel kom tau txais ib qho du thiab huv si.
8.Rub tawm: Tus nqi ntawm zinc tuaj yeem tswj tau thiab kev siv zinc tuaj yeem raug txo los ntawm kev txo qis kev rub tawm nrawm.
9.Sab hauv tshuab: tshem tawm cov kua zinc ntau dhau ntawm cov yeeb nkab steel sab hauv kom tau txais qhov sib luag thiab huv si sab hauv.Cov kua zinc tshem tawm ua cov zinc hmoov rau rov ua dua.
10.Dej txias: qhov kub ntawm cov dej txias tank yuav tsum tau tswj ntawm 80 ℃, thiab cov yeeb nkab galvanized yuav tsum txias.
11.Passivation: cov tshuaj passivation yog txau rau ntawm cov yeeb nkab tiav ntawm lub tshuab raj kom cov yeeb nkab nto passivated.Tom qab lub tshuab tshuab sab nraud, cov tshuaj passivation ntau dhau yog tshuab tawm nrog cua compressed.
12.Kev tshuaj xyuas: cov yeeb nkab steel galvanized poob rau ntawm lub rooj ntev zaum soj ntsuam, tom qab kev tshuaj xyuas, cov yeeb nkab galvanized uas ploj lawm tau muab tso rau hauv lub pob tawb pov tseg, thiab cov yeeb nkab tiav tau ntim thiab muab tso rau hauv qhov chaw cia.