Cov kab txaij nqaim txias yog ua los ntawm kub dov nqaim-siv steel, thiab cov hlau nqaim nqaim uas muaj qhov tuab tsis tshaj 4 hli thiab qhov dav tsis tshaj 600 hli yog tsim los ntawm txoj kev txias dov.
Cov txheej txheem ib txwm muaj ntawm cov khaub thuas dov strip ntau lawm muaj ob peb kauj ruam ntawm pickling, dov, annealing, txiav, quenching thiab tiav cov khoom ntim. Nyob rau hauv lub caij ntuj no txias-dov nqaim strip steel kev lag luam, theem ntawm cov cuab yeej nyob rau hauv txhua txoj kev yog tsis sib xws, thiab muaj qhov zoo thiab qhov tsis zoo, tab sis feem ntau, qib ntawm cov khoom siv ntawm broadband steel yog txawv heev. Txawm li cas los xij, cov yam ntxwv ntawm cov khoom txias-dov nqaim sawb hlau txiav txim siab tias cov khoom siv tsis tas yuav tsum siab npaum li cov khoom siv dav hlau ntau lawm. Yuav ua li cas los xyuas kom meej cov khoom siv theem ntawm txias-dov nqaim strip steel muaj qee yam ntxwv piv nrog niaj hnub kev tiv thaiv ib puag ncig thiab zoo.
2.1 Pickling cov txheej txheem ntau lawm yav dhau los, lub thawv hom sulfuric acid pickling txoj kev tau dav siv nyob rau hauv zus tau tej cov txias dov zoo zoo nqaim sawb hlau. Tom qab ob peb xyoos ntawm txoj kev loj hlob, cov kab txuas txuas ntxiv tau siv dav hauv ntau yam txias-dov nqaim sawb steel ntau lawm, tab sis cov cuab yeej siv feem ntau rov qab, thiab cov kab ntau lawm tam sim no yuav tsum tau daws cov teeb meem hauv qab no.
(1) Kev kho cov kua qaub thiab cov kua qaub pov tseg. Acid pos huab tsis tsuas yog ua rau acid noj, corrodes cov nroj tsuag thiab cov khoom siv, tab sis kuj corrodes lub nto ntawm steel strips uas tsis thauj nyob rau hauv lub sij hawm, thiab ua rau ib tug ntau ntawm kev nyuaj siab nyob rau hauv ib puag ncig.
(2) Ib qho khoom siv cua sov. Cov tuam txhab lag luam feem ntau xav txog cov nqi peev los siv cov khoom siv hluav taws xob los ntawm kev siv hluav taws xob ncaj qha lossis tsis ncaj qha rau cov kua qaub, tsis muaj cov kua qaub kub tswj qhov system, cuam tshuam rau kev ruaj ntseg ntawm pickling zoo thiab lub peev xwm ntau lawm thiab khib nyiab. Nws yog pom zoo kom siv pickling kub tswj cov cuab yeej.
(3) Pickling ceev. Hauv kab pickling, qhov ceev tuaj yeem hloov kho. Raws li lub pickling txuas ntxiv, lub acidity txo, lub ferrous ion nce, thiab lub sij hawm pickling yuav tsum tau ntev. Txhawm rau kom tsis txhob tshwm sim ntawm cov kua qaub los yog kua qaub nyob rau saum npoo ntawm cov hlau sawb, cov kua qaub pov tseg. Nws raug nquahu kom siv cov cuab yeej hloov pauv zaus hauv cov kab ntau lawm los ua kom qhov nrawm nrawm nrawm tig mus rau qhov nrawm nrawm.
Rau yav tom ntej txoj kev loj hlob, tom qab kub dov tropical ntau lawm kab, multi-tog peev kev koom tes yuav tsum tau saws los tsim ib tug technologically advanced ntauwd-hom nruam pickling kab nrog tib theem ntawm broadband, thiab cov khib nyiab kua qaub yuav tsum tau txo los ntawm hydrochloric. acid regeneration technology los hloov cov khoom siv tam sim no. Cov theem feem ntau rov qab, nrog rau ntau yam ntawm cov ntsiab lus, ntau yam kev ua qias tuaj, thiab ib qho kev sib xyaw ua ke tsis tu ncua. Lub tshuab txias-kuav los tiag strip mill ncaj qha siv cov pickled xeb-pov thawj sawb hlau tom qab pickling, yog li tag nrho cov kev cuam tshuam ib puag ncig ntawm lub txias-dov sawb zeb, txo cov nqi ntau lawm thiab ua rau cov chaw tsim khoom huv si tiag tiag.
Cold Rolled Galvanized Steel Chev
