Q235B steel phaj yog cov hlau tsis tshua muaj hlau, nrog cov khoom siv zoo heev thiab cov khoom siv vuam, dav siv hauv kev tsim kho, choj, nkoj, tsheb thiab lwm yam haujlwm. Cov hauv qab no yuav yog cov lus qhia ntxaws ntxaws los ntawm cov tshuaj muaj pes tsawg leeg ntawm Q235B steel phaj, cov khoom siv kho tshuab, cov txheej txheem ntau lawm, daim ntawv thov teb thiab lwm yam.
Ua ntej, tshuaj muaj pes tsawg leeg
Cov tshuaj muaj pes tsawg leeg ntawm Q235B steel phaj feem ntau suav nrog carbon, silicon, manganese, phosphorus, sulfur thiab lwm yam khoom. Ntawm lawv, carbon yog ib qho ntawm cov ntsiab lus tseem ceeb cuam tshuam rau kev ua tau zoo ntawm cov hlau, silicon thiab manganese tuaj yeem txhim kho lub zog thiab hardness ntawm hlau, phosphorus thiab sulfur muaj qhov cuam tshuam tsis zoo rau cov yas thiab tawv tawv ntawm cov hlau. Yog li ntawd, nyob rau hauv cov txheej txheem ntau lawm, cov ntsiab lus ntawm cov ntsiab lus yuav tsum tau tswj nruj me ntsis kom ntseeg tau tias kev ua tau zoo ntawm Q235B steel phaj.
Thib ob, mechanical zog
Cov khoom siv ntawm Q235B steel phaj muaj xws li yield zog, tensile zog, elongation, cuam tshuam toughness, thiab lwm yam. Ntawm lawv, yield zog yog ib qho tseem ceeb Performance index los ntsuas lub peev xwm ntawm steel los tiv thaiv deformation, tensile zog sawv cev rau lub peev xwm ntawm steel los tiv thaiv. tensile deformation, elongation qhia txog cov yas deformation muaj peev xwm ntawm steel, thiab cuam tshuam toughness sawv cev rau lub peev xwm ntawm steel los tiv thaiv tej yam loads. Cov khoom siv kho tshuab no yog qhov tseem ceeb rau kev nyab xeeb ntawm Q235B steel phaj hauv ntau daim ntawv thov engineering.
3. Cov txheej txheem ntau lawm
Cov txheej txheem ntawm Q235B steel phaj feem ntau suav nrog smelting, nruam casting, dov thiab lwm yam txuas. Ua ntej ntawm tag nrho cov, cov hluav taws xob rauv los yog converter smelting txoj kev yog siv los tshem tawm impurities thiab teeb meem nyob rau hauv cov hlau kub, thiab ntxiv ib tug tsim nyog tus nqi ntawm alloying ntsiab kom tau cov tshuaj muaj pes tsawg leeg yuav tsum tau. Tom ntej no, lub molten hlau yog poured rau hauv lub nruam casting tshuab rau solidification thiab sib sau ua ib tug billet. Thaum kawg, lub billet yog pub rau hauv zeb rau dov kom tau qhov xav tau thickness thiab qhov ntev. Nyob rau hauv cov txheej txheem ntau lawm, nws tseem yuav tsum tau ua qhov kev kho saum npoo ntawm cov hlau phaj, xws li txhaj tshuaj blasting, pleev xim, thiab lwm yam, txhawm rau txhim kho nws cov corrosion kuj thiab kev zoo nkauj.
4. Daim ntawv thov teb
Vim tias Q235B steel phaj muaj cov khoom siv zoo heev thiab cov khoom siv vuam, nws yog dav siv hauv kev tsim kho, choj, nkoj, tsheb thiab lwm yam. Hauv kev tsim kho, Q235B steel phaj feem ntau yog siv hauv kev tsim steel qauv cog kev txhawb nqa kab thiab kab teeb, nrog rau cov phab ntsa thauj khoom thiab cov plag tsev hauv cov tsev siab. Nyob rau hauv lub tshav pob ntawm cov choj, Q235B steel phaj yog tsuas yog siv los tsim cov qauv kev txhawb nqa thiab lub lawj ntawm Choj, nrog rau kev tiv thaiv txheej ntawm Choj. Hauv kev ua haujlwm ntawm cov nkoj, Q235B steel phaj feem ntau yog siv los tsim lub plhaub thiab cov qauv sab hauv ntawm lub nkoj, nrog rau lub lawj thiab lub tsev ntawm lub nkoj. Nyob rau hauv lub tsheb teb, Q235B steel phaj yog tsuas yog siv los tsim lub chassis thiab thav duab ntawm lub tsheb, raws li zoo raws li lub sab nrauv qauv thiab carriage ntawm lub tsheb.
Nyob rau hauv luv luv, raws li ib tug tsis tshua muaj-alloy structural steel, Q235B steel phaj muaj zoo heev mechanical zog thiab vuam zog, thiab yog dav siv nyob rau hauv ntau yam teb. Kev paub txog nws cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, cov txheej txheem tsim khoom thiab daim ntawv thov yuav pab kom nkag siab zoo dua thiab siv cov khoom siv no.
