1.What yog vim li cas rau lub pre - Ua haujlwm theem?
Residual nto paug
Roj: Rolling roj, xeb {{}} Cov roj pov thawj, thiab roj muab tshem tawm kom huv. Roj tuaj yeem thaiv kev sib cuag ntawm cov hlau substrate thiab zinc daws.
Hlau Hmoov / Plua Plav: Qhov no los ntawm Rolling txheej txheem lossis chaw khaws khoom thiab tuaj yeem cuam tshuam cov nplaum ntawm txheej.
Graphite: Lubricating Graphite tseem nyob rau saum npoo ntawm qee cov hlau tshwj xeeb.
Tsis tiav kev tshem tawm hlau oxide nplai (xeb)
Oxide teev cov ntaub ntawv ntawm cov hlau saum npoo thaum lub sijhawm kub thiab cia. Yog tias pickling tsis muaj txhij txhua, no nyuaj teev cov khoom seem txwv tsis pub siv zinc los ntawm reacloting txheej los tsim ib txheej alloy, uas ua rau muaj kev npau taws thiab delamination tom qab plating.
Pickling Teeb Meem
Tshaj - pickling lub sij hawm pickling lub sij hawm lossis hydrogen ntau yuav ua rau ntau cov microstrate, ua rau muaj ntau cov microstrate, ua rau cov txheej txheem zoo nkauj, cuam tshuam txheej adhesion.
Nyob rau hauv {- pickling: lub sijhawm tsis txaus tiv thaiv tiv thaiv ua tiav cov hlau oxide nplai.
Cov acid acid): Cov hlau hlau ntau dhau ntawm cov ntsiab lus hauv cov kua qaub tuaj yeem cuam tshuam tu zoo.
2.Qhov dab tsi yog vim li cas rau lub galvanizing txheej txheem theem?
Flux Teeb Meem
Flux tsis ua hauj lwm: Flucunt fluc thiab concentration, lossis sib sau cov ntsiab lus tsis zoo, feem ntau yog o /} ion ion cov ntsiab lus, ua ntej cov hlau nkag mus da dej zinc.
Flux residue: yog tias workpieces tsis tau qhuav tom qab tshem tawm cov da dej flux, nqa lawv mus rau zinc tawg thiab tsim cov plating me me.
Zinc Da Dej Muaj Zog thiab Kub
Tsis Txaus Txhuas Cov Ntsiab Lus:
Cov ntsiab lus ntau dhau heev (ib txwm muaj cov txheej txheem alloy zoo li galvalume) ua rau aluminium kom nyiam kev nyiam nrog cov hlau, sib sau ib txheej fe2al5 strawb. Thaum qhov no tuaj yeem cuam tshuam kev loj hlob yooj yim, txheej dhau los yog cov nplawm daj ua rau "hmoov zoo" lossis "yws" thaum deformation.
Cov ntsiab lus tsawg dhau txhuas cov ntsiab lus: Hauv cov xim ntshiab zinc, qhov tsim nyog ntawm cov txhuas tuaj yeem txhim kho qhov ci ci thiab txhim kho adhesion. Cov ntsiab lus qis dhau tuaj yeem muaj cov nyhuv tsis zoo.
Import Zinc da dej kub:
Siab dhau qhov kub nrawm dua cov hlau - dinc cov tshuaj tiv thaiv, tsim cov hlau tuab thiab γ1 ntu). Qhov txheej loj no tuaj yeem tshem tawm qhov kev khoov me me lossis cuam tshuam.
Tsawg dhau qhov kub tsawg tshwm sim hauv cov hlau tsis tiav hauv- zinc cov tshuaj tiv thaiv, ua rau muaj alloy alloy alloy, thiab ntxhib txheej tsos.
3.Qhov cuam tshuam tsis yog tsis muaj tseeb ntawm machining thiab deformation muaj nyob rau ntawm tev ntawm galvanized txheej?
Kev khoov lossis stamping: Thaum kev ntaus nqi hluav taws xob tsawg dhau los yog cov hlau sib luag, cov hlau diav ntau dhau ntawm cov hlau alloy} Qhov no yog qhov ua rau tshaj plaws ntawm post - kev ua spalling.
Kev cuam tshuam loj thiab cov scrapes: muaj zog sab nraud ua tau ncaj qha rau cov txheej zinc cais cais tawm ntawm lub substrate.
4.Yog dab tsi ua kev xeb ntawm kev ua haujlwm ib puag ncig muaj nyob rau ntawm lub galvanized txheej?
Tsis tsim nyog rau kev siv hauv cov kua qaub muaj zog: Zinc yog cov khoom siv amphalicer thiab corrodes nrawm nrawm, ua rau cov txheej ua kom yaj dua li tev.
Kev ncua sij hawm ntub, nrog ib puag ncig muaj peev xwm ua rau "Reb dawb" (cov khoom siv corrosion), cov khoom siv corrosion), cov khoom corrosion ntau dua li cov peeling los ntawm cov teeb meem adhesion.
5.Qhov dab tsi yog cov lus xaus thiab kev ntsuas tiv thaiv?
Pretreatment: ntxiv dag zog tswj hwm thiab tshuaj xyuas ntawm cov txheej txheem degreasing thiab pickling los xyuas kom cov huv, corrosion {{0} {dawb saum npoo.
Galvanizing: nruj me ntsis tswj cov zinc da dej kub, lub sij hawm raus dej ntshis, cov ntsiab lus zoo, thiab flux specifications.
Tshaj tawm - Kev Ua: Thaum tsim kev tsim thev naus laus zis, thaum tsim kev siv lub peev xwm dhau los ntawm kev khoov zawv vojvoog thiab deforming ntau heev.