Q: Hauv kev tsim cov galvanized coil, cov txheej txheem tshwj xeeb dab tsi ntawm cov txheej txheem smoothing xa mus rau?
A: Nws tshwj xeeb yog hais txog "kev ua tiav" (tseem hu ua leveling) txheej txheem, uas feem ntau yog nyob nruab nrab ntawm cov ncej -galvanizing cua txias seem thiab cov tshuaj kho kab mob ntawm cov kab nruam kub -dip galvanizing ntau lawm kab. Cov txheej txheem no siv ob- yob lossis plaub- yob tiav zeb. Cov yob sab sauv thiab sab qis siv qee qhov siab rau cov galvanized thiab txias strip steel, ua rau me ntsis elongation deformation, yog li tshem tawm microscopic unevenness ntawm zinc txheej saum npoo, txhim kho cov kab nrib pleb, thiab muab cov txheej txheem saum npoo zoo sib xws rau kev ua haujlwm tom ntej, oiling, thiab lwm yam txheej txheem.
Q: Dab tsi yog qhov ua tau zoo ntawm kev ua tiav ntawm qhov zoo nkauj thiab kev xav ntawm galvanized coils?
A: Kev ua tiav zoo txhim kho qhov zoo ntawm galvanized coils. Tom qab ua tiav, txhua qhov tsis sib xws lossis roughness uas yuav muaj nyob rau hauv cov zinc txheej yog smoothed, uas ua rau ib tug finer, ntau yam khaubncaws sab nraud povtseg nrog ib tug mos metallic luster los yog matte tiav. Ib txhij, cov txheej txheem tiav tau txais kev kho mob tshwj xeeb (xws li EDM texturing), uas hloov cov micro-roughness mus rau txheej. Qhov no muab cov galvanized coil nrog cov xim zoo nkauj adhesion thiab ib qho chaw zoo nkauj, tshem tawm cov teeb meem me xws li cov ntiv tes lossis cov pob zeb khawb. Rau cov tsheb lossis cov khoom siv vaj huam sib luag uas xav tau kev pleev xim ntxiv, qhov chaw tiav yog qhov tsim nyog rau cov xim zaj duab xis theem, tiv thaiv txiv kab ntxwv tev lossis pinholes.
Q: Yuav ua li cas ua kom tiav cov duab thiab cov cuab yeej ntawm galvanized coils?
A: Kev ua tiav mills siv qhov nro thiab dov quab yuam rau lub sawb, ua rau elongation ntawm kwv yees li 0.5% mus rau 2% (hu ua tiav elongation). Qhov no me ntsis elongation tshem tawm cov teeb meem xws li ntug waviness, nruab nrab warping, los yog camber, ua rau lub sawb ncaj. Los ntawm kev xav txog kev siv tshuab, kev ua tiav qhia txog ntau qhov kev hloov pauv hloov mus rau hauv galvanized coil matrix, tshem tawm ib ntus tshem tawm cov qoob loo los ntawm kev txias tom qab annealing, yog li txo qhov yield point elongation. Qhov no zoo tiv thaiv cov kab hauv qab (Lüders bands) los ntawm kev sib sau thaum lub sij hawm tom ntej stamping, ua rau muaj kev ruaj ntseg zoo dua thiab zoo li saum npoo.
Q: Cov txheej txheem tseem ceeb dab tsi yuav tsum tau tswj xyuas thaum lub sijhawm ua tiav?
A: Plaub qhov tseem ceeb yuav tsum tau tswj xyuas kom meej. Ua ntej yog qhov ua tiav elongation, feem ntau yog teem ntawm 0.5% thiab 1.5% nyob ntawm daim ntawv thov khoom. Tsawg dhau qhov elongation yuav tsis tshem tawm cov kab nrib pleb tsis xws luag, thaum siab dhau qhov elongation yuav txo cov khoom yas thiab ua rau cov yob hnav. Qhov thib ob yog lub zog dov, uas txiav txim siab qhov sib cuag ntawm cov sawb thiab cov yob tiav, cuam tshuam rau kev hloov pauv ntawm qhov roughness. Qhov thib peb yog lub hauv ntej thiab nram qab nro, uas yog kho los ntawm lub nro yob teem kom ruaj khov strip lag luam tsis slippage los yog wrinkling. Plaub yog qhov roughness saum npoo (Ra tus nqi) ntawm cov yob tiav, feem ntau xaiv los ntawm 1.0 txog 4.0 micrometers nyob ntawm cov neeg siv khoom. Txoj kev yob nto roughening (EDM, laser, lossis txhaj tshuaj peening) kuj cuam tshuam rau qhov kawg ntawm qhov chaw morphology. Cov tshuab ua tiav niaj hnub no kuj tau nruab nrog cov cuab yeej ntsuas ntsuas hauv online thiab tsis siv neeg elongation tswj tshuab.
Q: Cov teeb meem dab tsi tshwm sim nrog galvanized coils tsis tiav? Yam khoom twg yuav tsum tau ua tiav?
A: Tsis tiav galvanized coils feem ntau muaj cov duab tsis zoo, pom pom zinc paj protrusions, thiab me me qhov tsis sib xws. Lawv qhov kev ntxhov siab- cov kab nkhaus kuj qhia tau hais tias cov txiaj ntsig siab tau hais tawm, ua rau lawv yooj yim rau cov txiv kab ntxwv tev lossis kab hlais thaum lub sij hawm stamping. Rau cov khoom siv zoo tib yam, cov ntawv corrugated, lossis cov ntawv thov uas tsis muaj kev txwv nruj, kev ua tiav yuav raug tshem tawm. Txawm li cas los xij, rau cov khoom lag luam uas muaj qhov zoo ntawm qhov zoo thiab cov qauv tsim, xws li tsheb sab hauv thiab sab nrauv vaj huam sib luag, siab- cov khoom siv kawg, cov khoom stamping precision, thiab xim- coated substrates, xov yog qhov tseem ceeb. Tsis tas li ntawd, kev ua tiav tshem tawm cov xim sib txawv tshwm sim los ntawm cov txheej txheem tsis sib xws; yog li ntawd, rau siab -kawg galvanized coils yuav tsum tau xim xim tom qab txheej, tiav kuj yog ib qho tseem ceeb kauj ruam.