Lub hardness ntawm dc01 txias - rolled steel ntawv tsis yog cuam tshuam los ntawm ntau cov khoom siv tau txais cov khoom siv. Cov xwm txheej tshwj xeeb yog raws li hauv qab no:
1. Ntxhw Rolling deformation (Rolling Txheej Txheem)
Thaum lub sij hawm txias rolling txheej txheem, cov ntawv steel undergoes yas deformation thaum nws dhau los ntawm cov zeb dov. Cov flattens no thiab elongates cov hlau nplej, nce cov nplej sib ceg, thiab nce sab hauv kev ua haujlwm sab hauv, ua rau ua haujlwm tawv thiab yog li ntawd, muaj zog ntxiv.
Qhov ntau dua qhov txawv txav (piv txwv li, qhov ntau dua qhov sib txawv ntawm cov tuab tom qab dov thiab cov khoom tuab uas ua haujlwm hnyav dua thiab ua haujlwm hnyav. Piv txwv li, tom qab ntau txias rolling hla dhau ntawm tib daim ntawv hlau, lub thinner lub thickness, siab dua lub hardness.
2. Annealing Txheej Txheem Tsis
Tom qab dov tawm txias, cov ntawv hlau feem ntau undergoes anderealing kev kho mob (xws li tshem tawm annealing) kom tshem tawm cov kev ua haujlwm hnyav thiab rov ua haujlwm. Qhov annealing txheej txheem ncaj qha cuam tshuam rau hardness:
Annealing kub: Yog tias qhov ntsuas kub tsawg dhau, ua haujlwm tawv tsis tuaj yeem tshem tawm tag nrho, ua rau muaj kev nyuaj siab dua. Yog tias qhov ntsuas kub siab dhau, cov nplej loj zuj zus, txo qis zog (tab sis muaj feem cuam tshuam rau lub zog).
Lub Sijhawm Tuav Tseg: Lub sijhawm tuav tsis txaus tiv thaiv tau cov qauv muag txaus ntawm cov qauv nyuaj, ua rau muaj kev tawv ntau dua. Lub sijhawm sib tsoo ntau dhau kuj tseem tuaj yeem ua rau muaj kev tawv tawv vim yog coarse nplej.
Tus nqi txias: ntau dhau txias txias yuav inhibit recrystallization, txuag ib co qauv hardened thiab ua rau muaj kev nyuaj siab dua.
3. Qhov tseeb hloov pauv hauv cov tshuaj lom neeg
Txawm hais tias DC01 muaj meej tshuaj lom neeg cov qauv tshuaj (piv txwv li, C dua lossis sib npaug lossis muaj sib npaug nrog 0.50%, me ntsis nyob rau hauv kev sib xyaw tuaj yeem cuam tshuam rau kev tsim txom tiag tiag:
Cov pa roj carbon me dua (c) thiab manganese (mn) cov ntsiab lus yuav nce me ntsis ntawm kev tawv ntawm steel phaj los ntawm cov khoom siv txuag.
Qhov sib txawv me ntsis hauv cov ntsiab lus tseem ceeb (piv txwv li, silicon thiab tooj liab) kuj tseem muaj qhov cuam tshuam me ntsis ntawm kev tawv.
4. Rolling kis thiab dov dag zog
Hauv ntau -}}}}}}}}}}} ecameters xws li lub zog rolling faib thiab rolling ceev hauv txhua kis cuam tshuam rau kev sib txuam ntawm kev ua yeeb yam ntawm cov hlau deformation. Kev tiv thaiv ntau yam tsis zoo lossis kev ntxhov siab muaj peev xwm ua rau hauv zos siab dua (piv txwv li, tsis sib luag) hauv cov phaj steel.
Lub ntsiab
Lub hardness ntawm DC01 tus qauv hlau yog qhov tshwm sim ntawm kev sib xyaw ua ke ntawm kev ua kom txias tawg thiab annealing softening. Annealing yog qhov tseem ceeb los tswj kev hardness (los ntawm kev tswj cov qib ntawm recrystallization). Hauv kev tsim khoom tiag tiag, cov hlau ua kom zoo dua cov tsis muaj zog ntawm DC01 ua kom tau raws li cov kev ua tiav ntawm nws tus kheej "General Form Form" (xws li dabtsi yog khoov thiab dabtsi yog khoov).
Kuaj ntawv
Kev faib
Dab tsi yog qhov kev sib raug zoo ntawm cov phaj steel thickness thiab hardness?
Muab qee cov qauv thiab cov qauv rau kev sim lub hardness ntawm dc01 txias- rolled steel phaj.
Sau qee qhov kev daws teeb meem rau kev nyuaj ntawm DC01 txias- rolled steel phaj.