Ntawm no yog cov lus qhia ntxaws ntxiv ntawm cov kev xav tau hluav taws xob cuam tshuam rauS355j2wp ntawm -20 degree, suav nrog cov qauv kev cuam tshuam thiab cov tswv yim cuam tshuam:
Kev cuam tshuam cov tawv ntawm S355J30WP ntawm -20 degree
Raws liEN 10025-5(European txheej txheem rau huab cua cov hlau), tusYam tsawg kawg nkaus Charpy V-NTCH (KV) cuam tshuam lub zograuS355j2wpntawm-20 degreeyog:
Longitudinal (L) Kev Ntsuas: Ntau dua los yog sib luag rau 27 joules
Transverse (t) kuaj: Feem ntau qis dua (~ 20 J), tab sis tus qauv qhia meej txog kev ntev tshwj tsis yog muaj kev pom zoo me.
Cov Ntsiab Lus Tseem Ceeb cuam tshuam rau kev cuam tshuam cov kev cuam tshuam
Cov Khoom Thickness:
Lub 27J xav tau siv rau thicknessesTsawg dua los yog sib npaug rau 50 hliCov. Rau cov phiaj thicker (piv txwv li, 50-100 mm), cuam tshuam cov nqi yuav txo qis, thiab kev sim ntxiv lossis cov ntawv xeem ntxiv.
Cov txheej txheem ntau lawm:
Normalized dov (thermomechanical kho) txhim kho qis-kub nyuaj.
Huab Cua Hlau Vs. Zoo tib yam S355:
ThaumS355J2(tsis muaj huab cua) muaj tib yam 27th yuav tsum tau ntawm -20 degree,S355j2wppubNtxiv corrosion tsis kamVim nws cov ntsiab lus alloy (Cu, CR, P).
Cov Tswv Cuab cuam tshuam
Txuas hniav & Offshore qauv: Ua kom muaj zog ductility hauv huab cua txias, tiv thaiv kev tawg.
Daim Ntawv Txiav Txim Rau Vuam: Preheating (100-150 degree) yuav xav tau rau cov ntu tuab kom muaj kev nruj.
Daim ntawv muaj cai: Ib txwm txheeb xyuas ntawmCov ntawv pov thawj zeb xeem (MTCS), raws li qhov tseem ceeb tuaj yeem sib txawv.
