Kev sib raug zoo ntawm qhov ntom ntom thiab tawv ntawm Eva ua npuas ncauj?

EVA ua npuas ncauj xev yog cov khoom siv uas tau siv dav hauv cov xwm txheej xws li kev sib khi, shockproofing, cushioning, thiab pasting. Nws cov khoom yog cuam tshuam los ntawm ntau cov ntsiab lus, ntawm cov kev sib raug zoo ntawm qhov ceev thiab tawv tawv yog qhov tshwj xeeb. Nkag siab txog kev sib txuas ntawm ob tus tuaj yeem pab koj xaiv cov khoom lag luam zoo rau koj daim ntawv thov.

Qhov ceev feem ntau yog hais txog qhov loj rau ib qho ntim rau hauv kg \/ m³ los yog g \/ cm³. Nyob rau hauv kev ua npuas dej rau hauv eva, siab dua lub ntom ntom, tsawg dua cov hlwb sab hauv cov khoom thiab tus qauv hloov tus qauv. Hardness qhia txog qhov muaj peev xwm muaj peev xwm tiv thaiv kev tiv thaiv lossis deformation, thiab feem ntau tau qhia hauv chaw nkaum. Feem ntau hais lus, ntau dua qhov ntom ntom, qhov nyuaj dua ntawm cov npaus vim tias nws sab hauv phab ntsa sab hauv tuab, thiab qeeb rov qab tom qab compression.

Tab sis ntom ntom tsis yog kiag li linear nrog hardness. Piv txwv li, ua npuas ncauj yuav nthuav tawm cov hardness siab txawm tias ntawm qis dua hauv cov qauv lossis ua npuas dej. Qhov no feem ntau yog cov ntaub ntawv hauv cov khoom lag luam nrog cov fiber tshwj xeeb lossis kho kab hla sib piv. Yog li ntawd, nyob rau hauv cov txheej txheem xaiv, kev ua tau nyuaj tsis tuaj yeem raug txiav txim siab los ntawm kev ntom.

Rau qee zaus uas yuav tsum tau ua kom zoo rau lub zog ua kom lub zog, xws li ntim hluav taws xob, nws raug nquahu cov kab xev Rau cov ntawv thov uas xav tau kev txhawb nqa lossis txheej txheem kev ruaj khov, xws li lub tsev sib txawv lossis kho kom ceev thiab cov khoom siv tawv tawv muaj ntau. Tam sim no, Eva ua npuas ncauj sawb lub hardness feem ntau 38-42}} ntug dej,

Hauv cov ntsiab lus, qhov ntom ntawm EVA ua npuas ncauj xev yog cuam tshuam nrog kev nyuaj siab, tab sis cov kev ua tau zoo tshwj xeeb uas yuav tsum tau ua ke nrog cov qauv mis thiab daim ntawv thov kev thov. Cov kev xaiv tsim nyog tuaj yeem muab tag nrho ua si rau nws qhov kev ua tau zoo.