S355J2HCov kav hlau kub-ua seamless, ua cov khoom siv hlau muaj zog siab, yuav tsum ua tau raws li ntau yam kev cai thiab daim ntawv pov thawj kom nkag mus rau hauv kev lag luam European. Tsab xov xwm no piav qhia txog cov kev cai ntawm daim ntawv pov thawj.

Cov Kev Cai Tseem Ceeb ntawm Daim Ntawv Pov Thawj

1. Kev Ua Raws Li Tus Qauv Khoom

EN10210 S355J2Hcov kav hlau yuav tsum ua raws li cov kev cai ntawm cov qauv EuropeanEN 10210-1:2006thiab EN 10210-2:2006. Cov qauv no qhia txog cov tshuaj lom neeg sib xyaw, cov khoom siv kho tshuab, kev kam rau siab, thiab cov xwm txheej kev xa khoom ntawm cov kav hlau kub.

2. Daim Ntawv Pov Thawj CE

Raws li EU Construction Products Regulation (CPR 305/2011/EU), cov kav hlau ua vaj tse yuav tsum tau txais CE marking. Qhov no yuav tsum tau:

•Kev ntsuam xyuas kev tswj hwm kev tsim khoom hauv Hoobkas los ntawm lub koom haum uas tau txais kev ceeb toom los ntawm EU

•Kev tshaj tawm txog kev ua tau zoo raws li tus qauv sib haum xeebEN 10210

•Tsim kom muaj ib lub kaw lus tswj xyuas zoo ntawm kev tsim khoom tas mus li

3. Cov Ntaub Ntawv Txog Kev Ua Haujlwm ntawm Cov Khoom Siv

•Cov Tshuaj Lom Zem: Ua raws li S355J2H cov kev txwv tshwj xeeb rau C, Si, Mn, P, S cov ntsiab lus

•Cov Khoom Siv Kho Tshuab: Lub zog tawm los≥355MPa, lub zog tensile 470-630MPa

•Kev Cuam Tshuam: Qib J2 xav tau lub zog cuam tshuam tsawg kawg nkaus ntawm 27J ntawm -20°C

•Kev Ntsuas Tsis Ua Rau Puas Tsuaj: Xws li kev ntsuas ultrasonic kom ntseeg tau tias cov khoom siv ruaj khov

4. Daim Ntawv Pov Thawj Tswj Kev Tsim Khoom Hauv Hoobkas

Cov chaw tsim khoom yuav tsum tsim kom muaj EN ISO 9001 kev tswj hwm zoo thiab dhau kev tshuaj xyuas los ntawm cov koom haum EU lees paub. Qhov no suav nrog kev tswj hwm zoo tag nrho los ntawm kev yuav khoom siv raw mus rau cov khoom kawg.

5. Daim Ntawv Pov Thawj Tshuaj Xyuas Sab Nraud

Cov neeg yuav khoom European feem ntau xav tau cov ntawv ceeb toom los ntawm cov neeg thib peb uas tau lees paub thoob ntiaj teb, xws li:

•TÜV Rheinland

•Bureau Veritas

•Daim ntawv pov thawj SGS tshuaj xyuas

6. Daim Ntawv Pov Thawj Ua Raws Cai Ib puag ncig

•Ua raws li REACH cov cai rau kev sau npe tshuaj lom neeg, kev ntsuam xyuas, thiab kev tso cai

•Kev ua raws li cov cai ntawm EU txog kev tsis sib haum xeeb ntawm cov minerals

Cov Lus Qhia Txog Kev Nkag Mus Rau Kev Ua Lag Luam

1. Kev Npaj Ua Ntej: Cov txheej txheem kev lees paub yuav siv sijhawm 6-12 lub hlis thiab yuav tsum tau npaj raws li qhov ntawd.

2. Kev Koom Tes Hauv Zos: Xav txog kev koom tes nrog cov neeg faib khoom hauv Tebchaws Europe lossis cov neeg koom tes hauv zos

3. Cov Ntaub Ntawv Txog Kev Siv Tshuab: Npaj cov ntaub ntawv txog kev siv tshuab kom tiav suav nrog cov ntawv qhia txog kev xeem thiab daim ntawv pov thawj

4. Kev Sab Laj Txog Kev Ua Haujlwm: Nrhiav cov koom haum sab laj txog kev ua haujlwm uas paub txog cov cai ntawm EU

Xaus lus

Kev nkag mus rau hauv kev lag luam European ntawm EN10210 S355J2H seamless steel tubes yog ib qho txheej txheem uas yuav tsum tau ua raws li cov qauv kev cai nruj thiab cov kev cai tswjfwm. Qhov tseem ceeb rau kev vam meej yog kev nkag siab thaum ntxov thiab kev ua tiav tag nrho cov kev cai ntawm daim ntawv pov thawj, tsim kom muaj kev tswj hwm zoo, thiab tsim kom muaj kev sib raug zoo ua lag luam nrog cov neeg koom tes European. Raws li EU tso qhov kev saib xyuas ntxiv rau kev nyab xeeb ntawm kev tsim kho thiab kev ruaj khov, kev ua tiav cov kev cai ntawm daim ntawv pov thawj no tsis yog tsuas yog ib qho mob rau kev nkag mus rau hauv kev lag luam xwb tab sis kuj yog ib qho tseem ceeb ntawm kev sib tw ntawm cov khoom.