Tin plating txheej txheem

Tinplate feem ntau yog tsim los ntawm cov txheej txheem hauv qab no:
1. Kub dov: Nyob rau ntawm lub nruam kub sawb zeb, lub slab yog kub dov ntawm ib tug ntau dua dov kub los tsim txiav kub dov steel daim hlau thiab nruam strip coils;
2. Pickling: Cov kab pickling yog siv los tshem tawm cov nplais oxide ntawm cov hlau nplaum ua ntej txias dov. Qhov no txo ​​qis txias dov yog yuav tsum tau ua rau nyias tinplate xav tau los ntawm kev ua lag luam. Cov nyhuv pickling zoo kuj tseem yuav muaj txiaj ntsig zoo rau kev txhim kho qhov zoo thiab huv ntawm cov phaj hlau kom tau raws li cov kev xav tau ntawm cov txheej txheem electroplating tin tom ntej;
3. Txias dov: Cov hlua khi hlua khi yog txias dov rau ntawm lub tshuab txias dov kom ua tiav cov tuab tuab. Txhawm rau ua kom cov khoom lag luam zoo thaum lub caij txias dov, nws yog ib qho tseem ceeb kom ntseeg tau tias lub thickness ntawm cov khaub thuas dov strip yog uniform, tau zoo nto zoo, thiab ua tau raws li qhov yuav tsum tau flatness. Cov yam ntxwv zoo no yuav tshwm sim hauv cov khoom kawg ntawm tinplate;
4. Annealing: Txias dov yuav elongate lub grain qauv ntawm cov sawb hlau raws li qhov txias dov kev taw qhia, ua rau cov sawb hlau nyuaj thiab nkig. Txawm li cas los xij, thaum lub sij hawm annealing txheej txheem, lub txias dov strip yog reheated thiab tuav nyob rau hauv ib tug txo qhov cua ntawm ib tug tej yam kub rau ib lub sij hawm ntawm lub sij hawm los tsim tshiab undeformed nplej, thiaj li hais tias cov khoom vaj tse raws li cov kev cai siv. Muaj ob txoj kev annealing uas twb muaj lawm: batch annealing (batch annealing) thiab nruam annealing;
4. Flat dov los yog theem nrab dov: Flat dov los yog theem nrab dov feem ntau yog qhov kawg ua tiav. Cov txheej txheem dov no tuaj yeem ua rau me ntsis txias ua hauj lwm hardening ntawm cov sawb hlau, thaum tseem ua rau ib co toughness thiab tshem tawm cov yield plateau tshwm sim. Ntxiv mus, txias dov thiab / los yog lwm yam dov kuj tseem tuaj yeem ua rau cov sawb hlau ua kom tau raws li qhov xav tau ntawm qhov chaw tiav, txhim kho qhov zoo ntawm cov sawb zoo thiab flatness.