Cov Hlau Hlau: Lub zog nyuaj ntawm kev lag luam
Lub hauv paus tseem ceeb ntawm cov pa roj carbon hlau yog hlau thiab carbon. Nws cov ntsiab lus carbon feem ntau yog nruab nrab 0. 02% thiab 2.1%. Nws tseem muaj ib qho me me ntawm manganese, silicon, leej faj, phosphorus thiab lwm cov ntsiab lus. Raws li ib qho ntawm cov siv hlau hauv cov hlau hauv kev lag luam niaj hnub, kev thauj mus los, thiab lwm yam xws li tus nqi qis, kev ua tau zoo thiab yooj yim ua haujlwm.
Kev sib faib
Raws li qhov sib txawv hauv cov ntsiab lus carbon, carbon steel tuaj yeem faib ua peb pawg:
Tsawg Daim Hlau
Cov tshuaj ntsuab qis (C Tsawg dua lossis sib npaug rau 0. 25%): nws muaj cov yas ntau thiab weld Muaj peev xwm, muaj zog cuam tshuam, thiab cov ntawv thov raug suav nrog lub plhaub tsheb loj, tsim cov phiaj hlau thiab txias-rolled. Rockwell hardness hrb yog hais txog 60-90
Nruab Nrab Cov Hlau
Nruab Nrab Carbon Hlau (0. 25%
Cov Roj Hlau Siab
Siab carbon hlau (C ntau dua li lossis sib npaug rau 0. 6%): Lub hardness tuaj yeem ncav cuag HRC60 lossis siab dua, tab sis tus brittleness tseem ceeb. Nws yog tsuas yog siv rau cov cuab yeej high-lub zog xws li riam thiab springs.
Cov txheej txheem ntau lawm
Niaj hnub niaj hnub tsim cov roj carbon steel ua haujlwm feem ntau yog adopts ob qho kev hloov pauv (OOF) thiab 25% ntawm cov zis thoob ntiaj teb tau tshaj tawm. Tom qab kho dua tshiab, nws yog ua rau hauv daim hlau, profiles, thiab lwm yam los ntawm nruam-kub dov txheej txheem. Tom qab, kho cua sov xws li normalizing (cua sov txog 850 degree thiab quenching (dej txias) tuaj yeem nqa tawm los hloov microstructure. Piv txwv li, quenching + tsawg-kub tempering tuaj yeem tau txais lub siab-nyuaj temped zuag martensite qauv.
Kev ua tau zoo thiab txwv
Carbon Steel lub zog-rau-hnyav piv yog zoo dua li feem ntau alloys, thiab tus nqi ua tsuas yog 1\/3 ntawm qhov uas tsis muaj hlau. Txawm li cas los xij, nws corrosion tsis zoo yog tsis zoo, thiab cov txheej txheem txhua xyoo nyob rau hauv ib puag ncig huab cua nyob hauv Galvanizing (zinc txheej ntau dua los yog sib npaug rau 80g \/ m²) lossis pleev xim. Plrictle fracture yog nquag tshwm sim rau hauv qhov chaw kub tsawg (<-40℃), so nickel-based low-temperature steel is mostly used in equipment in the Arctic.
Thov Tshaj Tawm Tshiab
Nyob rau hauv xyoo tsis ntev los no, tsawg-alloy high-zog hlau (hsla) xws li ntxiv rau ntau dua 345b tau nce nws qhov hnyav los ntawm 2}}}}}}}}}}}}}}} {% rau kev siv cua tshuab raj. Kev Kho Mob Carburizing (qhov tob 0. {{5-2 mm) tuaj yeem ua rau Hardness ntawm lub iav - tuaj yeem ua rau HARC {}}
Nrog rau kev txhim kho cov khoom siv thev naus laus zis, cov roj carbon steel tawg los ntawm cov qauv ib txwm muaj los ntawm cov qauv kev ua haujlwm micro txheej txheem), thiab txuas ntxiv mus rau cov kev tseem ceeb tshiab hauv qab lub tswvyim.
