Qhov sib txawv ntawm qhov txias dov thiab kub dov yog qhov kub ntawm cov txheej txheem dov."Cold" txhais tau tias qhov kub thiab txias, thiab "kub" txhais tau tias kub siab.Los ntawm kev pom metallographic, ciam teb ntawm txias dov thiab kub dov yuav tsum txawv ntawm qhov ntsuas kub ntawm recrystallization.Ntawd yog, dov hauv qab qhov kub ntawm recrystallization yog txias dov, thiab dov saum toj no qhov kub ntawm recrystallization yog kub dov.Lub recrystallization kub ntawm steel yog 450 txog 600°C. Qhov sib txawv tseem ceeb ntawm kev kub dov thiab txias dov yog: 1. Cov tsos thiab qhov zoo ntawm qhov chaw: Txij li thaum lub phaj txias tau txais tom qab txias dov txheej txheem ntawm lub phaj kub, thiab qee qhov kev ua tiav yuav ua tiav tib lub sijhawm, Qhov zoo ntawm cov phaj txias (xws li Surface roughness, thiab lwm yam) zoo dua li cov phaj kub, yog li yog tias muaj kev xav tau ntau dua rau cov txheej txheem zoo ntawm cov khoom, xws li tom qab pleev xim, phaj txias feem ntau xaiv, thiab kub. phaj muab faib ua phaj pickling thiab tsis-pickling phaj.Qhov saum npoo ntawm cov phaj pickled muaj ib txwm xim hlau vim yog pickling, tab sis qhov saum npoo tsis siab li lub phaj txias vim nws tsis txias-dov.Qhov saum npoo ntawm lub phaj unpickled feem ntau muaj txheej oxide, txheej dub, lossis txheej hlau dub tetroxide.Hauv cov lus layman, nws zoo li nws tau ci, thiab yog tias qhov chaw cia khoom tsis zoo, nws feem ntau muaj xeb me ntsis.2. Kev ua tau zoo: Feem ntau, cov khoom siv hluav taws xob ntawm cov phaj kub thiab cov phaj txias yog suav tias yog qhov tsis sib xws hauv engineering, txawm hais tias lub phaj txias muaj qee qhov kev ua haujlwm nyuaj thaum lub caij txias dov, (tab sis nws tsis yog txoj cai. tawm cov kev cai nruj rau cov khoom siv kho tshuab., tom qab ntawd nws yuav tsum tau kho qhov sib txawv), lub zog ntawm cov phaj txias feem ntau yog me ntsis siab dua li ntawm cov phaj kub, thiab qhov tawv tawv kuj siab dua, nyob ntawm qhov degree ntawm annealing. ntawm lub phaj txias.Tab sis tsis muaj teeb meem li cas annealed, lub zog ntawm cov phaj txias yog siab dua li ntawm cov phaj kub.3. Kev ua tau zoo Txij li qhov kev ua tau zoo ntawm cov phaj txias thiab kub yog qhov tseem ceeb tsis sib txawv, qhov cuam tshuam ntawm kev ua haujlwm yog nyob ntawm qhov sib txawv ntawm qhov zoo.Txij li qhov zoo ntawm qhov chaw zoo dua los ntawm cov phaj txias, feem ntau hais lus, cov hlau phaj ntawm tib cov khoom yog cov khoom qub., cov nyhuv ntawm cov phaj txias yog zoo dua li ntawm cov phaj kub.
Post lub sij hawm: Aug-31-2022