Yuav ua li cas paub qhov txawv ntawm cov tais steel yog Q235 thiab Q345?

Q235 Hlau PhajthiabQ345 Hlau Phajfeem ntau tsis pom nyob sab nraud. Cov xim sib txawv tsis muaj dab tsi ua rau cov khoom siv ntawm cov hlau, tab sis yog tshwm sim los ntawm cov txheej txheem sib txawv tom qab cov hlau yog dov tawm. Feem ntau, cov nplaim yog liab tom qab ntuj txias. Yog tias txoj kev siv yog qhov txias sai, ntawm cov txheej txheem ntawm kev tsim ntawm cov xim dense oxide txheej, nws yuav qhia dub.
General zog tsim nrog Q345, vim Q345 tshaj Q345 tshaj Q235 steel zog, txuag hluav taws xob, ntau dua 22 %- 20%. Kom muaj kev tswj hwm kev tswj nrog Q235 zoo. Nqe qhov txawv ntawm 3% --- 8%.

Raws li rau kev txheeb xyuas, muaj ntau nqe lus:
A.
1, lub Hoobkas tuaj yeem siv los kuaj cov kev vuam txoj kev mus rau cov ntxhib dua qhov txawv ntawm ob cov khoom. Piv txwv li, hauv ob daim hlau phaj nrog E43 vuam pas nrig tau welded ib qho xwm txheej me me, thiab tom qab ntawd kev puas tsuaj rau qhov txawv ntawm ob hom steel phaj.
2, lub Hoobkas kuj tseem tuaj yeem siv lub log sib tsoo kom pom qhov txawv ntawm ob cov khoom. Q235 steel nrog ib txoj kev sib tsoo thaum sib tsoo, lub txim taws yog ib puag ncig cov xim, xim tsaus. Thiab Q345 sparks yog bifurcated, qaim xim.
3, Kuj tseem muaj raws li ob lub steel shear saum npoo sib txawv tuaj yeem kuj paub qhov txawv ntawm ob hom hlau. General, Q345 shear lub qhov ncauj xim whitish
B.
1, raws li cov xim ntawm cov phaj steel tuaj yeem paub qhov txawv ntawm Q235 thiab Q345 thiab Q345 qee cov xim liab (qhov no tsuas yog rau qhov sib txawv ntawm cov hlau, sijhawm tsis tuaj yeem txawv)
2, Feem ntau qhov txawv tshaj plaws kev ntsuam xyuas yog tshuaj tsom xam tshuaj, Q235 thiab Q345 cov ntsiab lus carbon thiab cov pa hluav taws xob tsis zoo li qub. (Qhov no yog txoj kev ruam ruam)
3, qhov txawv ntawm Q235 thiab Q345 thiab cov khoom siv vuam: ob daim vuam hlau nyob rau hauv ib sab ntawm lub phaj steel yog muaj pov thawj los ua Q345 khoom siv. (Qhov no yog kev ua tau zoo)