1. Cov khoom tshwj xeeb ntawm lub tsheb chassis twg tuaj yeem siv galvanized coils? Puas muaj ib qho piv txwv ntawm daim ntawv thov?
Teb: Daim ntawv thov ntawm galvanized coils nyob rau hauv automotive chassis Cheebtsam twb paub tab heev, feem ntau yog concentrated nyob rau hauv cov nram qab no qhov chaw: Chassis Cheebtsam xws li tswj caj npab thiab torsion beams tau complex geometric designs los ntawm high formability. Ib qho piv txwv ntawm daim ntawv thov hauv lub tsheb tshiab lub zog qhia tau hais tias ib lub tsheb tuaj yeem txo qhov hnyav los ntawm 8.3 kg, thaum tib lub sij hawm txo cov nqi tsim khoom thiab txo qis weld seams los ntawm kwv yees li 30%. Cov txheej zinc tuab (piv txwv li, 720 grams ib square meter) siv nyob rau hauv chassis systems tuaj yeem txhim kho corrosion tsis kam ntawm chassis Cheebtsam, zoo txuas lub tsheb lub neej kev pab cuam. Tsis tas li ntawd, chassis Cheebtsam yog raug rau lub sij hawm ntev - cuam tshuam los ntawm av nkos thiab xuab zeb, khawb los ntawm gravel, thiab tshuaj corrosion. Kub-dip galvanizing tsim cov txheej tuab tuab ntawm cov khoom siv xws li cov kav dej thiab cov kav dej hydraulic, tso cai rau lub chassis kom tsis txhob xeb-dawb mus txog 10 xyoo txawm nyob rau hauv saline- thaj chaw alkali. Cov khoom siv no kuj tau siv dav hauv cov khoom tiv thaiv xws li roj teeb pob plhaub hauv lub zog tshiab. Txawm li cas los xij, cov khoom ua rau muaj kev cuam tshuam loj heev los yog siab tshaj - qhov kub thiab txias, xws li lub cav mounts, kauj khawm, thiab nres discs, feem ntau tsis siv cov coils galvanized, tab sis siv siab dua - lub zog forged steel lossis cam khwb cia hlau. Chassis fasteners (xws li bolts thiab txiv ntseej) feem ntau siv zinc{19}}nickel alloy electroplating es tsis yog cov khoom siv galvanized.
2. Thaum siv galvanized coils rau chassis Cheebtsam, tus nqi yog dab tsi -effectiveness zoo piv rau txhuas alloys thiab stainless hlau?
Teb: Galvanized coils muab tus nqi tseem ceeb -kev ua tau zoo. Tus nqi ntawm cov ntawv galvanized tsuas yog kwv yees li ib -feem peb ntawm cov hlau tsis muaj steel, nrog lub zog tawm ntawm kwv yees li 300 MPa, kub-dip galvanized txheej thickness ntawm 50 mus rau 100 micrometers, thiab lub neej ntev txog li 15 xyoo nyob rau hauv qhov chaw nyob deb nroog atmospheric ib puag ncig, ua tau raws li cov kev tiv thaiv corrosion ntawm feem ntau ntawm cov khoom. Hauv kev siv nyiaj- txwv thiab qhuav lossis ib puag ncig corrosive ib puag ncig, galvanized ntawv yog qhov kev xaiv zoo tshaj; thaum stainless hlau muaj qhov zoo tshaj plaws corrosion kuj, nws cov nqi yog siab dhau lawm, ua rau nws haum rau tsis tshua muaj kuab paug los yog siab -humidity coastal ib puag ncig; aluminium ntawv prioritizes lub teeb yuag tsim, haum rau cov tsheb ua ntej qhov hnyav txo. Xav txog tag nrho lub neej- voj voog tus nqi ntawm chassis Cheebtsam, siv galvanized coils kuj muaj cov txheej txheem zoo sib xws. Lub adhesion ntawm txheej galvanized thiab electrophoretic xim mus txog qib 0 (cross-txiav xeem), thiab cov phosphate zaj duab xis muaj ib tug crystal grain loj li ntawm 20% finer tshaj txias-rolled ntawv, ntxiv txo nqi ua ntej{18}} kev kho mob rau painting. Kub-dip galvanizing tshuab rau kub- dov substrates yog maj mam hloov cov khaub thuas txias{22}} dov daim hlau. Nws txhim kho kev cuam tshuam los ntawm kwv yees li 20% thiab txo cov nqi kwv yees li 15%, thiab tau siv dav hauv cov khoom siv loj loj xws li lub tsheb npav lub cev.
3.Yuav ua li cas vuam teeb meem yuav tshwm sim thaum galvanized coils tau ua tiav rau hauv chassis Cheebtsam? Yuav ua li cas welding zoo yuav lav?
Teb: Qhov no yog ib qho teeb meem tseem ceeb uas yuav tsum tau ua tib zoo saib xyuas thaum lub sij hawm galvanized coil ua. Qhov chaw vuam ntawm cov ntawv hlau galvanized nthuav qhia ntau qhov kev sib tw piv rau cov ntawv tsis muaj hlau: zinc txheej uas yaj ua ntej cov ntawv hlau ua ib lub nplhaib zinc, hloov qhov tam sim no thiab txo qhov vuam tam sim no; zinc txheej txheej kub hnyiab tau-tawm, adhesion, thiab electrode paug txo electrode lub neej; Qhov tsis tshua muaj zog thiab tsis muaj kev sib cuag ntawm cov zinc txheej yooj yim ua rau muaj qhov tsis xws luag xws li weld spatter, tawg, shrinkage kab noj hniav, los yog softening ntawm microstructure. Yog li ntawd, kev teeb tsa qhov tsim nyog vuam tsis haum rau galvanized steel nplooj ntawv yog qhov tseem ceeb. Cov kev daws teeb meem suav nrog: Ua ntej, nyob rau theem txheej txheem, xaiv cov khoom siv galvanized ntawv vuam thiab cov txheej txheem tsis sib xws, nrog kev sib txuam ntawm cov vuam tam sim no thiab lub sijhawm rau cov txheej txheej sib txawv. Thib ob, ntawm qib xaiv cov khoom, ua ntej ntawm zinc- hlau alloy coated coils (xws li DX51D + ZF). After alloying treatment, the coating is composed of zinc-iron alloy, resulting in a dense structure and high chemical stability, offering better welding performance and coating adhesion compared to traditional galvanized sheets. Thib peb, ntawm tus qauv tsim, tswj qhov sib txawv ntawm lub puab tsaig thiab siv tus nqi tsim nyog ntawm cov khoom siv sib txuas rau cov hlau phaj ncej puab tuaj yeem ua kom tsis muaj teeb meem corrosion tshwm sim rau 6 xyoo (60 lub voj voog ntawm kev sim). Qhov cua zoo kuj tseem tsim nyog thaum vuam kom tsis txhob nqus cov zinc vapors. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias cov txheej txheem vuam yuav ua rau cov zinc txheej hauv qhov vuam; Yog li ntawd, cov vuam yuav tsum tau kho nrog zinc{15}}nplua nuj primer lossis cov khoom zoo sib xws tom qab vuam rau kev tiv thaiv corrosion.
4.Qhov kev tiv thaiv xeb ntawm galvanized steel chassis zoo li cas? Cov qauv twg tuaj yeem siv los txheeb xyuas qhov no?
Teb: Cov kev tiv thaiv xeb ntawm galvanized chassis Cheebtsam tau raug pov thawj los ntawm kev siv ntau dhau thiab raug txheeb xyuas los ntawm cov qauv. Ua ntej, qhov corrosion kuj ntawm galvanized steel los xij yog qhov zoo tshaj rau cov ntawv uas tsis yog -galvanized, ncua qhov pib ntawm corrosion ntawm lub tsheb lub cev nto thiab feem ntau nce lifespan ntau dua 35%. Tshwj xeeb tshaj yog rau chassis Cheebtsam, kev tiv thaiv electrochemical ntawm zinc txheej tso cai rau lub chassis nyob rau hauv xeb-dawb mus txog 10 xyoo txawm nyob rau hauv saline-alkali cheeb tsam. Siv siab -lub zog galvanized steel los xij, los ntawm cov txheej txheem alloy tsim thiab optimized galvanizing txheej txheem, nws cov corrosion kuj tau zoo dua, nrog rau cov ntsev tsuag tshuaj ntsuam lifespan ncua los ntawm ntau tshaj 50% piv rau cov tsoos siab - lub zog steel, zoo txuas lub neej kev pab cuam ntawm cov khoom kawg. Cov zinc{12}} hlau alloy txheej tsim los ntawm kub-dip galvanizing muaj 5 mus rau 10 npaug ntawm corrosion kuj ntawm electro{16}}galvanizing. Hauv European thiab Asmeskas tsheb, daim ntawv thov tus nqi ntawm cov ntawv galvanized nce mus txog ntau dua 90% hauv lub cev -hauv-dawb, thaum daim ntawv thov tus nqi ntawm cov khoom lag luam hauv tsev tsawg dua 20%, qhia tias kev tiv thaiv tus nqi ntawm cov ntawv galvanized tau dav lees paub los ntawm kev lag luam tsheb thoob ntiaj teb. Nws yuav tsum raug sau tseg tias kub-dip galvanizing thiab electro{25}}galvanizing muaj qhov sib piv corrosion kuj ntawm tib tuab, tab sis kub-dip galvanizing tuaj yeem ua tiav cov txheej tuab, yog li ua rau lub neej ntev dua kev tiv thaiv.
5. Thaum siv galvanized coils rau chassis Cheebtsam, dab tsi tsis thiab ntsuas yuav tsum tau ua ntej hauv kev xaiv cov khoom?
Teb: Lub hauv paus ntsiab lus tseem ceeb ntawm kev xaiv cov khoom siv yog xaiv cov galvanized coils uas tsim nyog rau kev thov ib puag ncig, tsis yog tsuas yog nrhiav lo lus "galvanized." Ua ntej, txheej thickness yog qhov tseem ceeb. tuab zinc txheej yog nyiam rau chassis systems; Piv txwv li, zinc txheej ntawm 720 grams ib square meter tuaj yeem txhim kho corrosion kuj. Feem ntau, zinc txheej tsis pub tsawg tshaj 180 grams ib square meter (Z180 qib) yog pom zoo rau chassis Cheebtsam, thiab nyob rau hauv saline -alkali los yog ntug hiav txwv dej, nws yuav tsum tau upgraded rau Z275 los yog siab dua. Thib ob, hais txog cov khoom siv hauv paus, kub- dov substrates muaj lub zog siab thiab tsim nyog rau cov khoom siv hnyav xws li tsheb chassis; txias-rolled substrates muaj ib tug du nto thiab haum rau siab{11}}precision forming; chassis Cheebtsam tseem tuaj yeem siv cov khoom tshwj xeeb xws li duplex steel zinc- hlau alloys, xws li HC340/590DPD + ZF, uas ua tiav qhov sib npaug zoo ntawm lub zog thiab cov yas. Thib peb, hais txog cov txheej txheem galvanizing, kub-dip galvanizing (tshwj xeeb yog zinc- hlau alloy coatings) yuav tsum tau ua qhov tseem ceeb rau chassis Cheebtsam, raws li nws cov corrosion kuj yog deb tshaj li electro{19}}galvanizing, muab ntev - tiv thaiv chassis Cheebtsam. Plaub, hais txog tom qab- kev kho mob, passivation thiab oiling tom qab galvanizing tuaj yeem tsim cov yeeb yaj kiab tiv thaiv, ntxiv txhim kho corrosion kuj. Thib tsib, hais txog kev muaj peev xwm ua tiav, tshuaj xyuas seb tus neeg muag khoom puas muaj cov txheej txheem vuam kev tshaj lij thiab tom qab-weld tiv thaiv- muaj peev xwm kho corrosion rau cov nplooj ntawv galvanized. Nws raug pom zoo kom thov cov ntaub ntawv pov thawj zoo thiab txheeb xyuas qhov tseem ceeb xws li txheej txheej hnyav, qib substrate, thiab cov ntawv ntsuas tshuaj ntsev kom tsis txhob yuav cov khoom qis dua.