Cov khoom siv txhawb nqa yog lub cev pob txha txhawb nqa ntawm cov khoom FRP, uas feem ntau txiav txim siab cov khoom siv kho tshuab ntawm cov khoom pultruded. Kev siv cov khoom siv txhawb nqa kuj muaj qee qhov cuam tshuam rau kev txo qhov shrinkage ntawm cov khoom thiab ua rau muaj kev hloov pauv kub thermal thiab qhov kub qis cuam tshuam lub zog.
Hauv kev tsim cov khoom FRP, kev xaiv cov khoom siv txhawb nqa yuav tsum xav txog tag nrho cov txheej txheem molding ntawm cov khoom, vim tias hom, txoj kev tso thiab cov ntsiab lus ntawm cov khoom siv txhawb nqa muaj kev cuam tshuam loj rau kev ua tau zoo ntawm cov khoom FRP, thiab lawv feem ntau txiav txim siab lub zog kho tshuab thiab elastic modulus ntawm cov khoom FRP. Kev ua tau zoo ntawm cov khoom pultruded siv cov khoom siv txhawb nqa sib txawv kuj txawv.
Ntxiv mus, thaum ua tau raws li cov khoom xav tau ntawm cov txheej txheem molding, tus nqi kuj yuav tsum tau xav txog, thiab cov khoom siv pheej yig yuav tsum tau xaiv ntau li ntau tau. Feem ntau, qhov kev roving ntawm cov iav fiber strands qis dua tus nqi dua li cov ntaub fiber; tus nqi ntawm felt qis dua li ntawm daim ntaub, thiab qhov impermeability zoo. , tab sis lub zog qis; cov alkali fiber pheej yig dua li cov alkali-free fiber, tab sis raws li cov alkali ntsiab lus nce, nws cov alkali tsis kam, corrosion tsis kam, thiab cov khoom hluav taws xob yuav poob qis.
Lub sijhawm tshaj tawm: Lub Rau Hli-29-2022
