Qhov kev ua tau zoo ntawm cov khoom sib xyaw pwm muaj xws li coefficient ntawm thermal expansion (CTE), kev pab lub neej, kub tsis kam, thiab lub cev muaj zog. Lawv CTE yog ze rau ntawm cov khoom sib xyaw uas tau tsim, uas pab tswj qhov tseeb qhov tseeb thaum kho.
Kev pab cuam lub neej txawv heev nyob ntawm seb cov khoom siv. Tsoos iav fiber ntau reinforced epoxy (GF / EP) pwm tuaj yeem tsim tau kwv yees li 10 mus rau 50 qhov chaw, thaum cov pwm ua nrog cov khoom siv niaj hnub siab-kev ua tau zoo xws li bismaleimide resin-raws li carbon fiber prepregs tuaj yeem tiv taus ntau dua 300 lub voj voog ntawm qhov kub txog li 175-180 degree.
Qhov ntau ntawm kev kho qhov kub thiab txias lawv tuaj yeem tiv taus yog dav, npog qhov kub thiab txias los ntawm qis - kub curing mus rau ntau tshaj 200℃. Qhov tseeb pwm prepreg tshuab, xws li HX90N, muaj CTE tsawg heev thiab zoo heev -kub tsis kam.
Furthermore, composite material molds generally have comprehensive advantages such as low density, low heat capacity, good repairability, and relatively low manufacturing costs.
