Q: Dab tsi yog cov ntsiab lus tseem ceeb rau kev xaiv cov tuab tuab ntawm galvanized lub kaum sab xis steel?
A: 1. Yuam kev tsim nyog: lub teeb thau khoom txaus ntshai (xws li kho kom zoo nkauj sab hauv, cov kab sib tw ib ntus): 3 ~ li ∠40 × 4, ∠50 × 5) tuaj yeem xaiv.
Heavy structures (such as industrial plant trusses, bridge supports): 8~20mm thick angle steel (such as ∠100×10, ∠160×16) is required, and the cross-sectional size is determined by calculation.
2. Anti-corrosion requirements: Hot-dip galvanizing: The coating thickness increases with the thickness of the angle steel (such as when the thickness is ≤5mm, the coating is ≥65μm; when the thickness is >5 hli, txheej yog ntau dua los yog sib npaug rau 85μm), haum rau ib puag ncig sab nraud lossis ib puag ncig.
Electrogalvanizing: cov txheej txheej txheej tuab yog 12 ~ 25μm, uas tsuas yog haum rau cov qhob av ib puag ncig).
3. Standards and supply: The mainstream supply specifications in the domestic market are ∠20×3～∠200×20, and unconventional thicknesses (such as >20mm) yuav tsum tau customized. Export tej yaam num yuav tsum xaiv cov kev sib raug cai sib xws raws li cov qauv thoob ntiaj teb (xws li ASTM A992, en 10025-2).
Q: Dab tsi yog cov kev tsis to taub thiab kev ceev faj txog kev xaiv tuab ntawm galvanized lub kaum sab xis steel?
A: "Lub thicker zoo dua": nws xav tau kom phim lub zog yuam. Kev nrhiav dej ntau dhau ntawm cov tuab yuav ua rau tus nqi thiab cov qauv kev coj ua. Piv txwv li, nws yog txaus kom siv ∠30 × 3 rau cov tsheb ciav hlau sam thiaj, thiab tsis tas yuav muaj ∠50 × 5.
Kev tsis meej pem ntawm galvanized txheej thiab hlau thickness: lub thickness txheej (xws li txheej ntawm lub kaum ntse ntse ntawm lub kaum ntse ntse nws tus kheej (xws li 5 hli) yog ob lub tswv yim. Tus qub cuam tshuam corrosion tsis kam, thiab tom kawg txiav txim lub zog.
Cov kev pheej hmoo ntawm cov khoom tsis yog cov qauv: "Cov hlau tsis zoo ntawm 5 hli tab sis tsuas yog 4.8mm hauv kev muaj tiag, thiab cov ntawv tshaj tawm tshuaj tsis txaus yuav tsum tau tshawb xyuas.
Q: Dab tsi yog cov ntsiab lus tseem ceeb los txiav txim siab thaum xaiv cov tuab ntawm Galvanized lub kaum sab xis steel?
A: Cov khoom lag luam uas yuav tsum tau, thov kev pab cuam corrosivation, tsim cov qauv kev tsim kho thiab cov qauv, kev tsim nyog lub neej, thiab kev khwv nyiaj txiag
Q: Dab tsi yog cov kauj ruam los xaiv galvanized lub kaum sab xis steel?
A: 1. Txheeb xyuas lub hom phiaj: nws siv qhov twg? Dab tsi yog nws siv rau?
2. Txheeb xyuas lub nra: Ntev npaum li cas nws yuav tsum tau tiv thaiv? (zoo li qub load, dynamic thauj khoom, cua thauj khoom, cov daus thauj, av qeeg, av qeeg, thiab lwm yam)
3. Ntsuas qhov chaw ib puag ncig: Yuav ua li cas corrosive yog qhov chaw siv? (Thaj av, Nqaum, thaj chaw muaj chaw nyob, sab hauv tsev, sab nraum zoov)
4. Tshawb xyuas cov specifications: dab tsi tsim cov hom phiaj thiab cov qauv dab tsi yuav tsum tau ua raws?
5. Kwv yees ua ntej: Raws li kev paub lossis cov phiaj xwm zoo sib xws, ua ntej kwv yees cov chaw dav dav thiab tuab npaum li cas.
6. Kev Xam Xam \/ Kev Sib Tham: Ua cov kev teeb tsa kev cai lossis sab laj rau sab laj kom txiav txim siab cov kev qhia tshwj xeeb.
7. Xav txog lub neej thiab nqi: nyob rau hauv lub neej ntawm kev tswj hwm kev nyab xeeb, ntsuas qhov kev cia siab lub neej thiab kev lag luam.
8. Clarify the galvanizing requirements: Determine the minimum required galvanizing layer thickness according to the environment.
Q: Dab tsi yog qhov kev ceev faj tseem ceeb rau galvanized lub qub steel?
A: 1. Sib txuam ntawm sab dav thiab cov tuab: cov specifications ntawm lub kaum sab xis ntawm "sab dav dav X sab dav dav th thickness" (piv txwv: mm), piv txwv li, 50x5x5. Thaum txiav txim siab cov tuab, sab nraud kuj yuav tsum tau txiav txim siab tib lub sijhawm, vim tias cov khoom muaj peev xwm coj los ntawm kev txiav txim siab los ntawm ob qho tib si. Cov tuab tsis tuaj yeem suav hais tias nyob rau hauv kev rho tawm.
2. Cov txheej galvanized tuab: Lub xeev kom meej meej ntawm cov khoom siv (piv txwv li ntawm 85μm lossis ntau dua raws li GB \/ T 13912 "), thiab txiav txim siab rau kev sib cog lus rau hauv daim ntawv cog lus. Lub thickness ntawm zinc txheej ncaj qha cuam tshuam rau lub neej tiv thaiv corrosion. Ib daim txheej ntsuas txheej txheej tuab yuav ceeb toom tej zaum yuav xav tau thaum lub sijhawm lees txais.
3. Kev ua raws li: Xyuas kom meej tias cov neeg yuav lub kaum steel sib ntsib cov qauv kub (xws li GB \/ T 706) thiab xws li GB \/ T 13912).