Thaum yuav Q355NH Corten Steel, ntau tus neeg yuav khoom tsis pom qhov tseem ceeb ntawm cov ntaub ntawv zoo- cov ntaub ntawv no tsis yog kev cai nkaus xwb, tab sis lav tias cov hlau ua tau raws li koj qhov project tus qauv, ua raws li cov qauv thoob ntiaj teb, thiab zam kev pheej hmoo xws li tsis yog -kev ua raws li kev nyab xeeb. Yog tias tsis muaj cov ntaub ntawv raug cai, koj tuaj yeem tau txais cov hlau tsis muaj zog lossis cov kev xav tau corrosion. Yog li, cov ntaub ntawv tseem ceeb dab tsi koj xav tau thaum yuav Q355NH, thiab vim li cas lawv tseem ceeb? Raws li kev coj ua thoob ntiaj teb kev yuav khoom thiab cov qauv kev lag luam, cov lus teb tseem ceeb yog qhov tseeb:Plaub daim ntawv pov thawj zoo yog xav tau rau Q355NH kev yuav khoom-Mill Test Certificate, Material Certificate, Inspection Report, and Compliance Certificate-txhua lub luag haujlwm tseem ceeb hauv kev txheeb xyuas qhov zoo thiab ua raws. Hauv qab no yog cov lus qhia yooj yim, ua tau zoo.
1. Mill Test Certificate (MTC) – Cov ntaub ntawv tseem ceeb tshaj plaws
MTC (tseem hu ua Certificate of Analysis) yog muab ncaj qha los ntawm steel zeb, ua pov thawj Q355NH ua tau raws li cov qauv tsim nyog (xws li GB / T 4171, EN 10025-5):
Cov ntsiab lus tseem ceeb: Tshuaj lom neeg muaj pes tsawg leeg (Cu, Cr cov ntsiab lus rau kev tiv thaiv corrosion), cov khoom siv hluav taws xob (yield zog ntau dua lossis sib npaug ntawm 355MPa, lub zog tensile), thiab batch tooj (kom taug qab cov hlau cov txheej txheem ntau lawm).
Yuav Tsum Tau Qib: Thov MTC EN 10204 3.1B- qhov no yog tus qauv thoob ntiaj teb rau Q355NH kev yuav khoom, txheeb xyuas los ntawm lub tuam tsev zoo.
Kev siv tswv yim: Ua kom cov hlau ua tau zoo raws li koj qhov project xav tau (xws li, qis-kub toughness rau cov cheeb tsam txias).
2. Cov ntaub ntawv pov thawj (Certificate of Origin)
Cov ntaub ntawv no lees paub qhov chaw thiab qhov tseeb ntawm Q355NH Corten Steel, tseem ceeb rau kev lag luam thoob ntiaj teb thiab kev lis kev cai:
Cov ntsiab lus tseem ceeb: Chaw tsim khoom npe, qib steel (Q355NH), hnub tsim khoom, batch naj npawb, thiab lub teb chaws ntawm keeb kwm.
Kev siv tswv yim: zam cov khoom cuav lossis cov hlau tsis zoo; xav tau kev lis kev cai nkag hauv ntau lub tebchaws (piv txwv li, EU, US, Southeast Asia).
3. Thib peb- Daim Ntawv Ceeb Toom Kev Tshawb Fawb (Xav tau tab sis pom zoo)
Rau cov haujlwm tseem ceeb (piv txwv li, txuas hniav, cov qauv kev lag luam), ib qho thib peb- tsab ntawv ceeb toom kev tshuaj ntsuam xyuas ntxiv ib txheej ntxiv ntawm kev ruaj ntseg zoo:
Tawm los ntawm: Cov chaw tso cai xws li SGS, TÜV SÜD, lossis Lloyd's Register.
Cov ntsiab lus tseem ceeb: Kev tshawb xyuas ywj pheej ntawm cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab qhov tseeb qhov ntev (thickness, dav).
Kev siv tswv yim: Txo cov kev pheej hmoo ntawm kev yuav khoom, tshwj xeeb tshaj yog thaum yuav los ntawm cov neeg muag khoom tshiab lossis rau loj - xaj xaj.
4. Daim Ntawv Pov Thawj Ua Raws Cai (Yog xav tau rau lub hom phiaj kev lag luam)
Cov ntaub ntawv no lees paub Q355NH ua raws li lub hom phiaj kev lag luam cov qauv tshwj xeeb, xav tau rau qee thaj tsam:
Hom Hom: CE Certificate (rau EU kev lag luam, ua pov thawj ua raws li EN 10025-5), SONCAP (rau Nigeria), lossis FDA (rau cov ntawv thov zaub mov).
Kev siv tswv yim: Ua kom cov hlau tuaj yeem raug cai nkag mus rau koj lub hom phiaj kev lag luam yam tsis muaj kev lis kev cai qeeb.
Tswv yim tswv yim rau kev txheeb xyuas cov ntaub ntawv
Txheeb xyuas qhov sib xws: Xyuas kom cov lej batch, qib steel, thiab cov lus qhia tshwj xeeb sib tw thoob plaws txhua cov ntaub ntawv thiab cov khoom xa tawm tiag tiag.
Txheeb xyuas qhov tseeb: Hla- tshawb xyuas MTC nrog lub zeb lub vev xaib raug cai lossis tiv tauj lub zeb ncaj qha rau kev lees paub.
Thov cov ntaub ntawv ua ntej: Sib tham nrog cov neeg muag khoom kom muab tag nrho cov ntaub ntawv xav tau ua ntej them nyiaj, kom tsis txhob xa tawm - kev yuav khoom tsis sib haum.
Hauv cov ntsiab lus, cov ntaub ntawv tseem ceeb zoo rau Q355NH Corten Steel kev yuav khoom yog MTC, Cov Khoom Siv Ntawv Pov Thawj, xaiv thib peb- tsab ntawv ceeb toom soj ntsuam, thiab kev ua lag luam- daim ntawv pov thawj kev ua raws cai. Cov ntaub ntawv no tau lees paub qhov zoo, ua raws, thiab qhov tseeb, pab koj kom tsis txhob muaj kev pheej hmoo ntawm kev yuav khoom thiab xyuas kom cov hlau ua tau raws li koj qhov kev xav tau.
