Kev yuav S355K2W Corten Steel yam tsis muaj cov ntaub ntawv pov thawj zoo yog qhov siab - twv txiaj yuam pov: cov khoom siv subpar yuav ua tsis tau raws li -40℃toughness yuav tsum, tsis muaj qhov tseem ceeb los tiv thaiv-corrosion ntsiab, los yog tseem yuav mislabeled-ua rau project qeeb, kev nyab xeeb kev nyab xeeb, thiab ua tsis tau tejyam. Rau pawg neeg yuav khoom thiab cov kws tsim khoom, cov lus nug tseem ceeb yog: Cov ntaub ntawv pov thawj tshwj xeeb twg yuav tsum tau thov los ntawm cov neeg muag khoom kom txo tau cov kev pheej hmoo no, tshwj xeeb tshaj yog hais txog Mill Test Reports (MTR)? Cov lus teb meej, hauv paus hauv EN cov qauv thiab cov kev coj ua zoo tshaj plaws hauv kev lag luam, yog qhov tseeb:EN 10204 Hom 3.1 MTR thiab Cov Ntaub Ntawv Cov Ntaub Ntawv (MDS) tsis yog -cov ntaub ntawv yuav tsum sib tham; cov ntaub ntawv ntxiv yuav tsum tau muab ntxiv raws li daim ntawv thov scenarios. Hauv qab no yog ib qho kev qhia luv luv, kev txiav txim siab ua kom tiav tsom mus rau kev siv tswv yim.
Vim li cas Cov Ntaub Ntawv Tseem Ceeb rau S355K2W
S355K2W yog tus qauv qib raws li EN 10025-5, nrog rau cov kev cai nruj rau cov tshuaj muaj pes tsawg leeg (Cu Ntau dua lossis sib npaug li 0.20%, Cr Ntau dua lossis sib npaug li 0.50%), cov khoom siv kho tshuab (yield zog Ntau dua lossis sib npaug rau 355MPa, - 40℃zog tiv thaiv. Cov ntaub ntawv zoo tsis yog "formalities" xwb - lawv tsuas yog cov pov thawj pom tseeb tias cov khoom siv tau ua raws li cov qauv no. Ua ntej cov ntaub ntawv raug ua kom muaj kev pov thawj zoo thiab tsis txhob nkim sij hawm ntawm cov ntaub ntawv tsis tseem ceeb.
Cov ntaub ntawv yuav tsum tau: Tsis yog -Cov ntaub ntawv tseem ceeb sib tham
Ob cov ntaub ntawv no tsim lub hauv paus ntawm S355K2W kev ua pov thawj zoo; cov neeg muag khoom yuav tsum muab lawv yam tsis muaj xwm txheej. Tsom ntsoov rau cov ntsiab lus tseem ceeb hauv qab no kom tsis txhob muaj qhov khoob:
1. EN 10204 Hom 3.1 Mill Test Report (MTR)
Lub luag haujlwm tseem ceeb: Cov ntaub ntawv pov thawj ntawm lub Hoobkas tshaj lij, muab cov ntaub ntawv pov thawj, thib peb- tog- tau lees paub cov ntaub ntawv rau txhua qhov cua sov / ntau ntawm S355K2W- tseem ceeb rau qhov kev lees paub thiab kev taug qab zoo.
Cov Ntsiab Lus Tshawb Fawb: ① Qhia meej meej "S355K2W" thiab "EN 10025-5" (tsis txhob tsis meej pem nrog cov qib uas tsis yog tus qauv); ② Cov ntaub ntawv taug qab (cov xov tooj cua sov / ntau, uas yuav tsum phim cov ntaub ntawv lub cev); ③ Cov ntaub ntawv xeem tiag tiag: tshuaj lom neeg muaj pes tsawg leeg (Cu, Cr, P cov ntsiab lus raws li EN 10025-5 txwv), cov khoom siv hluav taws xob (yield / tensile zog, -40℃cuam tshuam lub zog ntau dua lossis sib npaug ntawm 27J); ④ Daim ntawv pov thawj tus neeg xa khoom thiab daim ntawv tso cai kos npe (ua kom muaj tseeb); ⑤ Cov kev sim (piv txwv li EN ISO 6892-1 rau kev ntsuas tensile, EN ISO 148-1 rau kev ntsuam xyuas cuam tshuam).
2. Cov Ntaub Ntawv Cov Ntaub Ntawv (MDS)
Lub luag haujlwm tseem ceeb: Cov ntsiab lus nthuav dav ntawm S355K2W cov khoom tseem ceeb, ua haujlwm nrawm rau ua ntej- kev soj ntsuam kev yuav khoom thiab xa tawm- kev yuav khoom cia / ua tiav.
Cov Ntsiab Lus Tshawb Fawb: ① Kev sib raug zoo nrog MTR cov ntaub ntawv (tsis muaj qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg lossis cov khoom siv tshuab); ② Cov cim meej ntawm kev xa khoom (xws li "P" rau thermo- tshuab dov) thiab qib zoo nto; ③ Muaj peev xwm siv tau thiab cov kev txwv (xws li, qhov kub thiab txias rau kev pabcuam, cov lus qhia txog kev sib tw vuam).
Cov ntaub ntawv ntxiv: Scenario-Tshwj xeeb Ntxiv-Ons
Rau cov haujlwm uas xav tau tshwj xeeb, thov cov ntaub ntawv ntxiv no kom ntseeg tau tias daim ntawv thov tsim nyog. Lawv tsis yog qhov yuav tsum tau ua rau kev txheeb xyuas qhov ua tau zoo tab sis tseem ceeb rau siab - cov xwm txheej txaus ntshai:
1. Welding Compatibility Certificate (Yog xav tau vuam)
Paub meej tias cov khoom siv vuam siv tau sib xws (xws li ER70S-GNiCu, E7018-GNiCu) thiab cov kev pom zoo (preheating temperature, heat input). Xyuas kom cov pob qij txha tuav tau -40℃toughness thiab huab cua tsis kam.
2. Daim Ntawv Qhia Txog Kev Ua Haujlwm Ib puag ncig tshwj xeeb
Tsawg-Kev Pabcuam Kub (tsawg dua lossis sib npaug li -40 degree): Cov ntawv ceeb toom cuam tshuam ntxiv ntawm qhov ntsuas kub ntawm qhov kev pabcuam tiag tiag (xws li -50 degree) txhawm rau txheeb xyuas qhov toughness cia.
Ntug hiav txwv / ntsev tsuag ib puag ncig: Cov ntawv qhia txog tshuaj tsuag ntsev (raws li ASTM B117) qhia cov ntaub ntawv tus nqi corrosion, xyuas kom cov khoom tiv thaiv chloride ion yaig.
3. Cov ntaub ntawv ntim & Traceability
Xws li cov khoom ntim tshwj xeeb (xws li, VCI zaj duab xis wrapping, ISPM 15 pallets) thiab batch traceability chains. Ua kom muaj kev ncaj ncees ntawm cov khoom siv thaum lub sij hawm thauj mus los thiab pab txhawb kev taug qab yog tias muaj teeb meem zoo tshwm sim tom qab.
Kev Tshawb Fawb Tseem Ceeb Pitfalls kom zam
Tsis lees paub "Type 2.1 MTR": Tsis zoo li Hom 3.1 (thib peb-tus neeg pov thawj), Hom 2.1 tsuas yog tus xa khoom- tus kheej- tshaj tawm, tsis muaj txoj cai rau qhov kev lees paub.
Tshawb xyuas cov ntaub ntawv sib xws: Kev tsis sib haum xeeb ntawm MDS thiab MTR (piv txwv li, cov ntsiab lus sib txawv Cu) qhia tias muaj peev xwm dag tau - thov kom meej lossis hloov tam sim.
Tsis txhob hnov qab cov lus tsis meej: Tsis lees txais cov ntaub ntawv uas tsuas yog hais tias "ua tau raws EN 10025-5" yam tsis muaj cov ntaub ntawv tshwj xeeb (xws li tsis muaj -40℃cuam tshuam tus nqi zog).
Cov lus qhia rau kev sib txuas lus nrog cov neeg muab khoom
Qhia meej meej cov ntaub ntawv xav tau hauv daim ntawv xaj: ① Txoj Cai "EN 10204 Hom 3.1 MTR" (tsis yog hom qis dua); ② Sau cov ntsiab lus pov thawj tseem ceeb (piv txwv li, "-40℃cuam tshuam lub zog Ntau dua lossis sib npaug rau 27J"); ③ Yuav tsum tau muab cov ntaub ntawv ua lus Askiv (rau cov haujlwm thoob ntiaj teb) thiab xa 3-5 hnub ua haujlwm ua ntej xa khoom rau kev kuaj xyuas ua ntej.
Hauv cov ntsiab lus, kev yuav khoom S355K2W yuav tsum tau ua ntej EN 10204 Hom 3.1 MTR thiab MDS ua cov ntaub ntawv pov thawj zoo, nrog cov ntaub ntawv ntxiv ntxiv raws li cov xwm txheej thov. Qhov tseem ceeb yog tsom rau cov ntaub ntawv muaj tseeb, sib xws, thiab kev taug qab, thaum tsis txhob muaj qhov pov thawj zoo sib xws. Kev sib txuas lus meej nrog cov neeg muag khoom kom ntseeg tau tias cov ntaub ntawv muab tau raws li qhov project xav tau, tso lub hauv paus ruaj khov rau kev tswj kom zoo thiab ua tiav qhov project.
