1. Txij li thaum tsis muaj kev sib txhuam ntawm lub billet thiab lub extrusion chim, lub extrusion quab yuam yog tsawg dua thaum lub sij hawm rau pem hauv ntej extrusion. Thaum lub sij hawm rov qab extrusion txheej txheem, lub extrusion quab yuam tseem tsis hloov nyob rau hauv tag nrho cov hlab ntsha ntawm lub extrusion pas nrig. Cov ntaub ntawv nyuaj-rau-deform tuaj yeem raug extruded ntawm qhov kub thiab txias nrog ntau dua extrusion coefficients.
2. Cov hlau deforms uniformly, thiab cov qauv thiab txhua yam khoom raws li qhov ntev ntawm cov khoom extruded yog tib yam.
3. Muab piv nrog rau pem hauv ntej extrusion, cov ntaub ntawv pov tseg xws li xovxwm residue raug txo qis, thiab cov txiaj ntsig tau siab dua; Cov ingots loj tuaj yeem siv tau, uas yuav pab txhim kho cov cuab yeej siv tau zoo thiab txuas ntxiv ntawm kev tsim khoom.