Cov Ntsiab Lus Tseem Ceeb cuam tshuam rau Q345 Cov Khoom Siv Neeg Kho Tshuab

Cov Ntsiab Lus Tseem Ceeb cuam tshuam rau Q345 Cov Khoom Siv Neeg Kho Tshuab
Tshuaj lom neeg tshuaj: Q345 muaj cov alloying cov ntsiab xws li MN (1.00-1.60%) thiab SI (0.60%) kom txhim kho lub zog los ntawm cov tshuaj txuag zog. Qee qib (xws li Q345d / e) teeb meem Microalloying ntsiab xws li NB, V, txhim kho lub zog thiab tawv.
Rolling txheej txheem: kub - rolled "tswj q345 siv tau lub" (tmcp) txheej txheem los tswj lub zog siab thaum tsis muaj peev xwm ua tau zoo. Txias - rolled Q345 (piv txwv li, rau nyias phaj) ua tiav lub zog los ntawm kev deformation txias, tab sis yuav tsum muaj annealing los kho detility.
Thickness: Thicker steel results in slower cooling and coarser grains. Therefore, the yield strength of thick plate (t>63 hli) yog qis dua me ntsis uas ntawm nyias phaj (t tsawg dua los yog sib npaug rau 16 hli). Cov nyhuv tuab no yuav tsum tau txiav txim siab nyob rau hauv kev tsim. III. Kev ceev faj rau kev thov siv
Qib Kawm Kawm Qib Siab: Q345 tau muab faib ua tsib qib ua tau zoo: C, DIST ALTION Lies (qib kawm ntawv yuav tsum muaj 20} Cov qib tsim nyog yuav tsum raug xaiv raws li kev siv (piv txwv, Q345B / C yog siv nyob rau hauv cov qauv engineering, thaum muaj kev siv hauv cov chaw tsawg-qhov chaw).
Kev Tshuaj Ntsuam Kev Ntsuas: Thaum yuav khoom hauv Bulcial, cov qauv ntsuas kev ntsuas ntawm cov tensile, kev cuam tshuam, thiab Flexural Prodert cov teeb meem tshwm sim los ntawm substgard cov khoom siv.
Kev sib piv nrog lwm cov ntaub ntawv: Q345 tau cog lus lub zog (ntau dua los yog sib npaug ntawm cov roj ntsha (xws li QRACHO) Nws yog ib qho kev siv qib uas nquag siv rau cov nqi sib npaug / cov qauv sib piv. Hauv cov ntsiab lus, cov khoom siv tshuab ntawm Q345 yog tus cwj pwm zoo + cov khoom siv tawv me me, thiab cov neeg siv qib siab, cov khoom siv tsim nyog thiab cov khoom siv tau tsim nyog thiab qhov ntsuas kub.