1.Dab tsi yog qhov teeb meem tshwm sim los ntawm kev ceev nrawm?
Pickling tsis txaus (tsis huv huv):
Cov tsos mob: Unreacted hlau oxide nplai (dub nplai) tseem nyob rau ntawm daim kab xev, muab faib rau hauv strips los yog blocks.
Qhov tshwm sim: Qhov no yog qhov teeb meem ntshai tshaj plaws hauv cov txheej txheem txias dov. Qhov seem hlau oxide nplai yog qhov nyuaj heev thiab yuav raug nias rau hauv cov kab nrib pleb thaum lub sij hawm tom qab txias dov, tsim ib qho embedded scale defect. Qhov no tuaj yeem ua rau cov pob dub ntawm cov khoom tiav tiav los yog, nyob rau hauv cov xwm txheej hnyav, ncaj strip tawg.
Kev quab yuam kom nce acidic kub: Txhawm rau kom them sai sai, acid kub feem ntau yuav tsum tau nce ntxiv. Qhov no exacerbates acid pos huab volatilization, nkim nqi, thiab tej zaum yuav ua rau lub zos tshaj -pickling.
2.Dab tsi yog qhov teeb meem tshwm sim los ntawm kev qeeb qeeb?
Tshaj -pickling:
Phenomenon: Cov kua qaub tsis tsuas yog yaj cov hlau oxide nplai tab sis kuj pib ua rau cov hlau matrix (hlau).
Qhov tshwm sim: Ib daim ntawv pickled pitting rau ntawm qhov chaw, ua rau microscopic unevenness thiab ib tug ntse nce nyob rau hauv roughness. Qhov hnyav dua, dhau-pickling tuaj yeem ua rau hydrogen embrittlement-hydrogen atoms tsim los ntawm cov tshuaj tiv thaiv ntawm cov kua qaub thiab hlau nkag mus rau hauv cov hlau matrix lattice, uas yuav ua rau cov sawb ua nkig thiab tawg thaum tom ntej dov lossis stamping.
Bladder Kub Deformation:
Kev tso dej ntev ntev hauv cov kua qaub da dej thiab lub sijhawm cua sov ntau tuaj yeem ua rau thermal warping, piv txwv li, cua sov tsis sib xws nyob rau hauv qhov kev taw qhia ntawm cov sawb ua rau wavy npoo los yog wrinkles nyob rau hauv nruab nrab, cuam tshuam coiling zoo.
3.Dab tsi yog qhov cuam tshuam ntawm kev nrawm nrawm ntawm huab hwm coj?
Kev tuag ntau dua li "ceev" lossis "slow" yog qhov tsis sib xws:
Kev tsis sib xws ntawm qhov pib thiab qhov kawg: Cov kab pickling niaj hnub siv "turbulent pickling," thiab kev hloov pauv ceev cuam tshuam cov kua qaub ntawm cov kab nrib pleb. Qhov no ua rau lub sijhawm sib txawv ntawm qhov pib thiab qhov kawg ntawm lub kauj, tsim kom muaj xim sib txawv nrog cov xim dub thaum pib thiab xaus thiab dawb hauv nruab nrab.
Kev tswj tsis tau qhov nro nyob rau hauv cov txheej txheem ntu: Kev sib hloov ceev ua rau muaj kev sib hloov ntawm qhov nkag thiab qhov hluav taws xob loopers. Tsis ruaj khov nro ua rau lub sawb vibrate nyob rau hauv lub pickling tank, khawb lub nyem rolls thiab idler rolls. Cov khawb no yog longitudinal thiab tsis tuaj yeem tshem tawm los ntawm txias dov.
4.Dab tsi yog lub hauv paus ntsiab lus rau kev tswj kev ceev zoo?
Steel qib txiav txim siab pickling ceev:
Siab -silicon steel / siab- carbon steel: Cov hlau oxide nplai yog ntom, yuav tsum tau qeeb qeeb pickling ceev.
Tsawg- carbon me ntsis steel: Cov nplai oxide yog ntxeem tau, tso cai rau kom ceev ceev ceev.
Kub thiab concentration them nyiaj: siab dua acid kub thiab concentrations cia kom ceev ceev pickling speeds; Txawm li cas los xij, thaum cov kua qaub yog hnub nyoog (cov ntsiab lus hlau siab), qhov ceev yuav tsum raug txo.
Scale breaking tshuab nyhuv: Yog hais tias qhov elongation teeb ntawm lub inlet straightening tshuab (scale breaking tshuab) loj, lub oxide nplai twb tawg lawm, thiab lub pickling ceev yuav ho nce.
5.Dab tsi yog qhov essence ntawm pickling ceev?
Lub ntsiab lus ntawm pickling ceev yog qhov sib npaug ntawm "tshuaj tshuaj tiv thaiv lub sijhawm" thiab "kev ua haujlwm ntawm kev siv tshuab." Rau txias- dov coils, nyob rau hauv -pickling tshwm sim hauv cov khoom seem (lawv tsis tuaj yeem dov ntxiv), thaum dhau -pickling ua rau muaj kev pheej hmoo (kev ua tau zoo degradation). Yog li ntawd, ntawm - qhov chaw ua haujlwm feem ntau ua raws li lub hauv paus ntsiab lus ntawm "zoo dua qeeb dua nrawm dua, zoo dua hauv qab -pickling tshaj dua-pickling" (nyob rau hauv ntau yam tswj tau).