Cov Cold-Rolled Sheets twg yog qhov tsim nyog rau cov txheej txheem sib sib zog nqus stamping?

Kev sib sib zog nqus stamping yog cov txheej txheem tsim khoom siv dav hauv ntau qhov kev lag luam, yuav tsum muaj cov khoom tshwj xeeb hauv cov ntaub ntawv siv, tshwj xeeb tshaj yog nyob rau hauv kev xaiv cov ntawv txias-dov. Qhov tsim nyog ntawm cov ntawv txias-dov rau kev sib sib zog nqus stamping nyob ntawm ntau yam tseem ceeb.

Ib qho ntawm cov kev xav tseem ceeb yog cov khoom siv hluav taws xob ntawm cov ntawv txias-dov. Tsawg-carbon steel txias-kuav los tiag nplooj ntawv feem ntau nyiam rau kev sib sib zog nqus stamping. Cov no feem ntau muaj cov ntsiab lus tsis tshua muaj cov pa roj carbon monoxide, uas ua rau muaj qhov zoo ductility thiab formability. Cov ntsiab lus ntawm cov pa roj carbon tsawg tso cai rau cov khoom siv mus rau qhov tseem ceeb deformation yam tsis muaj kev tawg lossis tsis ua haujlwm.

Lwm qhov tseem ceeb yog qhov microstructure ntawm cov hlau. Fine-grained microstructures tau txais txiaj ntsig zoo vim lawv muaj cov khoom siv kho tshuab zoo ib yam thoob plaws hauv daim ntawv, txo qhov kev pheej hmoo ntawm kev ua tsis tiav hauv zos thaum lub sij hawm sib sib zog nqus stamping txheej txheem. Cov hlau uas muaj ferrite-pearlite microstructure feem ntau yog siv rau lub hom phiaj no.

Qhov zoo ntawm daim ntawv txias-kuav los tiag kuj tseem ceeb heev. Ib lub ntsej muag du thiab tsis muaj qhov tsis xws luag pab ua kom tiav qhov tseeb thiab zoo ib yam stamped qhov chaw. Txhua qhov chaw irregularities los yog inclusions yuav ua rau flaws thiab txo qhov zoo ntawm cov khoom kawg.

Lub thickness ntawm daim ntawv txias-kuav los tiag plays lub luag hauj lwm thiab. Cov ntawv nyias nyias feem ntau haum rau kev sib sib zog nqus stamping vim lawv yooj yim rau deform. Txawm li cas los xij, lub thickness kuj yuav tsum txaus los muab qhov tsim nyog lub zog thiab kav ntev rau qhov kawg stamped tivthaiv.

Cov ntsiab lus alloying tam sim no hauv cov hlau tuaj yeem cuam tshuam nws qhov tsim nyog rau kev sib sib zog nqus stamping. Piv txwv li, ntxiv me me ntawm cov ntsiab lus xws li manganese lossis phosphorus tuaj yeem txhim kho cov khoom siv kho tshuab thiab kev tsim cov hlau.

Cov ntawv txias-dov nrog cov qib siab ntawm purity yog nyiam. Cov impurities tuaj yeem ua rau cov khoom tsis muaj zog thiab ua rau kev ua haujlwm tsis zoo thaum lub sij hawm stamping.

Kev npau taws lossis kev mob ntawm daim ntawv txias-dov yog lwm qhov yuav tsum tau xav txog. Annealed nplooj ntawv feem ntau pom zoo formability piv rau li-dov los yog hardened los xij. Annealing pab daws kev ntxhov siab sab hauv thiab txhim kho ductility ntawm cov khoom.

Cov tshuaj muaj pes tsawg leeg ntawm cov hlau yog qhov tseem ceeb. Cov hlau uas tswj cov nqi ntawm cov pa roj carbon, manganese, silicon, thiab lwm yam khoom tuaj yeem tsim kho kom muaj cov khoom siv kho mob uas xav tau rau kev sib sib zog nqus stamping.

Ntxiv nrog rau cov khoom ntawm cov khoom siv nws tus kheej, kev ua haujlwm keeb kwm ntawm cov ntawv txias-dov tuaj yeem cuam tshuam nws qhov kev tsim nyog. Cov ntawv uas tau ua tiav kev kho cua sov kom zoo thiab cov txheej txheem dov yog qhov ua tau zoo hauv kev sib sib zog nqus stamping.

Advanced high-strength steels (AHSS) kuj tau tshwm sim los ua cov neeg sib tw muaj peev xwm rau kev sib sib zog nqus stamping hauv qee daim ntawv thov. Cov hlau no muaj kev sib xyaw ua ke ntawm lub zog siab thiab tsim kom muaj zog, tso cai rau cov khoom sib dua thiab muaj zog ntau dua.

Txawm li cas los xij, kev ua haujlwm nrog AHSS yuav tsum muaj kev paub tshwj xeeb thiab cov cuab yeej siv vim tias lawv cov kev coj tus cwj pwm tuaj yeem nyuaj dua piv rau cov qauv hlau.

Nws yog ib qho tseem ceeb uas yuav tsum tau ua kom tiav cov khoom siv thiab kev ntsuam xyuas ua ntej xaiv ib daim ntawv txias-dov rau kev sib sib zog nqus stamping. Cov khoom xws li lub zog tawm los, lub zog tensile, elongation, thiab hardness yuav tsum tau ntsuas thiab muab piv rau cov kev xav tau ntawm cov haujlwm tshwj xeeb stamping.

Kev tsim cov cuab yeej stamping thiab cov txheej txheem stamping tsis cuam tshuam nrog cov khoom ntawm cov ntawv txias-dov. Cov cuab yeej tsim tau zoo thiab cov txheej txheem ua kom zoo tuaj yeem them nyiaj rau qee qhov kev txwv ntawm cov khoom siv thiab ua kom muaj kev sib sib zog nqus stamping.

Tsis tas li ntawd, tus nqi ntawm cov ntawv txias-kuav los tiag yog qhov tseem ceeb uas yuav tsum tau sib npaug nrog nws cov kev ua tau zoo. Txawm hais tias qee cov ntaub ntawv ua tau zoo tuaj yeem muab cov qauv zoo tshaj plaws, lawv tuaj yeem tuaj ntawm tus nqi siab dua.

Hauv kev xaus, kev xaiv ntawm ib daim ntawv txias-kuav los tiag rau kev sib sib zog nqus stamping yuav tsum muaj kev nkag siab zoo ntawm cov khoom siv, ua keeb kwm, thiab cov kev cai tshwj xeeb ntawm kev ua haujlwm stamping. Ua tib zoo xav txog cov xwm txheej no, nrog rau kev sim cov khoom tsim nyog thiab cov txheej txheem ua kom zoo, tuaj yeem ua rau cov khoom lag luam zoo sib sib zog nqus.

Vam tias qhov kev tshawb fawb ntxaws no muab rau koj kom nkag siab zoo txog qhov twg cov ntawv txias dov yog tsim rau cov txheej txheem sib sib zog nqus stamping.