1. Dab tsi ntawm qhov zoo li yuav tsum tau kuaj xyuas thaum lub sij hawm lees txais ntawm galvanized coil tej yaam num?
A: Kev tshuaj xyuas qhov tshwm sim feem ntau yog kuaj xyuas seb cov txheej txheej galvanized puas tas mus li thiab tsis sib xws, thiab yuav tsum tsis muaj qhov tsis zoo xws li cov hlau raug, tev, zinc nodules, plating tsis tiav, lossis tawg. Nyob rau tib lub sijhawm, saib seb puas muaj qhov pom tseeb khawb, pob dub, dawb xeb, tsis sib xws zinc tawg, lossis xim txawv ntawm qhov chaw. Yog tias cov teeb meem no dhau qhov kev tso cai nyob rau hauv daim ntawv cog lus lossis cov qauv, qhov project yuav tsum raug suav tias tsis tsim nyog.
2. Yuav ua li cas cov zinc txheej thickness (los yog zinc txheej hnyav) soj ntsuam?
A: Thaum kuaj xyuas, zinc txheej thickness (los yog hnyav) yuav tsum tau ntsuas tsawg kawg yog peb qhov chaw sib txawv ntawm lub kauj (xws li, qhov pib, nruab nrab, thiab xaus) raws li qhov pom zoo nominal tus nqi. Qhov nruab nrab tus nqi ntawm cov ntsuas zinc txheej hnyav yuav tsum tsis txhob qis dua tus nqi nominal, thiab tsis muaj ib qho taw tes tus nqi yuav tsum qis dua 90% ntawm tus nqi nominal. Ib qho kev ntsuas qhov sib nqus yog feem ntau siv, thiab cov txiaj ntsig yuav tsum ua raws li GB / T 2518 lossis daim ntawv cog lus tshwj xeeb.
3. Dab tsi yog cov cim tseem ceeb rau kev lees txais kev ua haujlwm zoo?
A: Cov ntsiab lus tseem ceeb suav nrog lub zog tawm los, lub zog tensile, elongation tom qab tawg, thiab kev sim khoov yog tias tsim nyog. Thaum txais tos, cov qauv yuav tsum raug txiav los ntawm cov galvanized coil thiab cov kev ntsuam xyuas tensile yuav tsum tau ua raws li tus qauv kev taw qhia (feem ntau yog cov kev taw qhia dov). Cov txiaj ntsig yuav tsum ua kom tau raws li tus qauv yuav tsum tau ua raws li qib uas tau teev tseg hauv daim ntawv cog lus. Piv txwv li, DX51D + Z sib raug rau qis zog, thaum S350GD + Z xav tau lub zog siab thiab zoo formability.
4. Yuav ua li cas cov adhesion (los yog workability) ntawm galvanized txheej soj ntsuam?
A: Nws raug tshuaj xyuas los ntawm kev sim khoov lossis ntsuas qhov cuam tshuam. Kev ntsuas khoov yuav tsum khoov daim ntawv galvanized 180℃nyob ib ncig ntawm lub mandrel ntawm txoj kab uas hla thiab kuaj xyuas cov kab nrib pleb lossis tev ntawm cov zinc txheej rau sab nrauv ntawm thaj chaw khoov. Rau siab - tej yaam num zoo, tsis muaj zinc txheej tev raug tso cai rau ntawm qhov chaw khoov; tsuas yog cov kab nrib pleb me me raug tso cai yam tsis tau nthuav tawm cov hlau. Rau tej yaam num uas yuav tsum tau muaj siab, ib tug muab ob npaug rau dabtsi yog khoov los yog cupping xeem kuj yuav ua tau.
5. Dab tsi yog cov ntsiab lus tseem ceeb rau qhov tseeb qhov tseeb (thickness, dav, flatness) txais?
A: Thaum txais tos, qhov tseeb thickness (xws li zinc txheej) ntawm galvanized kauj yuav tsum tau ntsuas. Qhov sib txawv yuav tsum tsis txhob dhau qhov kam rau ua raws li tau pom hauv daim ntawv cog lus. Feem ntau, raws li GB / T 2518, qhov tso cai thickness sib txawv yog ± 0.03mm rau ± 0.08mm (nyob ntawm seb lub nominal thickness). Qhov dav sib txawv feem ntau tswj tsis pub dhau 0 txog +5mm. Flatness yog ntsuas los ntawm lub camber, waviness, los yog tus nqi tsis sib xws (xws li warping qhov siab ib 'meter') ntawm lub strip. Rau tej yaam num uas yuav tsum tau slitting los yog taug qab daim ntawv thov, tsis yog{10}} ua raws li cov qauv flatness yuav ncaj qha mus rau rov qab.