Thaum tshav kub kub hloov hom ntawm lub tshuab nqus tsev sintering rauv

Thaum tshav kub kub hloov thaum cua sov yog ib tug complex phenomenon. Cov txheej txheem hloov hluav taws xob ntawm cov khoom tuaj yeem muab faib ua peb hom: kev sib txuas, hluav taws xob, thiab convection.
1, Kev siv hluav taws xob yog hais txog qhov tshwm sim ntawm kev hloov hluav taws xob uas tshwm sim thaum cov khoom muaj qhov sib txawv ntawm qhov kub thiab txias hauv ib qho khoom tuaj rau hauv kev sib cuag ncaj qha yam tsis muaj qhov sib txawv ntawm cov khoom. Nyob rau hauv cov kua thiab cov khoom uas tsis yog conductive, kev hloov ntawm tshav kub nyob ntawm qhov kev txiav txim ntawm elastic tsis; Hauv cov hlau, nws tso siab rau kev txav ntawm cov electrons dawb; Hauv cov pa roj, nws tsuas yog nyob ntawm qhov sib txawv thiab kev sib tsoo ntawm atoms lossis molecules.
Thaum tshav kub kub hloov hom ntawm lub tshuab nqus tsev sintering rauv
2, Radiation yog ib txheej txheem ntawm kev xa hluav taws xob hluav taws xob los ntawm electromagnetic tsis. Kev hloov hluav taws xob hluav taws xob tsis yog tsuas yog cuam tshuam nrog kev hloov pauv ntawm lub zog, tab sis kuj yog nrog los ntawm kev hloov pauv ntawm cov ntaub ntawv hluav taws xob, uas yog, lub zog thermal hloov mus rau lub zog hluav taws xob, thiab lub zog hluav taws xob hluav taws xob yog absorbed thiab hloov mus rau thermal zog.
3, Convection yog hais txog kev hloov pauv ntawm cov cua sov los ntawm qhov sib txawv txav ntawm ntau qhov chaw ntawm cov kua dej. Kev sib pauv cua sov uas tshwm sim thaum cov kua dej dhau los ntawm lwm yam khoom ntawm qhov chaw hu ua convective heat transfer, nrog rau cov txheej txheem conduction nyob rau hauv laminar flow txheej nyob ze ntawm cov khoom nto thiab cov txheej txheem convection sab nraum cov txheej txheem ntws. Lub convection tshwm sim los ntawm qhov kub thiab qhov ntom ntawm cov kua dej nws tus kheej yog hu ua "natural flow", thiab cov cua sov hloov ntawm cov kua thiab qhov chaw hu ua "natural convective heat transfer"; Cov dej ntws tau tsim los ntawm kev siv ntau yam kev siv tshuab yog hu ua "forced flow", thaum lub tshav kub hloov ntawm cov kua thiab qhov saum npoo yog hu ua "forced convective heat transfer."
Hauv kev ua haujlwm zoo, cov txheej txheem hloov hluav taws xob ntawm cov cua sov hom xws li lub tshuab nqus tsev cua sov feem ntau yog cov txheej txheem uas muaj ob lossis peb txoj hauv kev ua haujlwm ib txhij.