1. Cov dej noo ntawm covhemp thawvyuav tsum tau ua yog tsawg dhau (cov duab los qhia yog qhuav dhau)
Qhov no yog lub ntsiab yog vim li casluam yeeb boxtawg. Thaum noo noo cov ntsiab lus ntawmluam yeeb boxyog tsawg, qhov teeb meem ntawm bursting yuav tshwm sim. Feem ntau, thaum cov dej noo qis dua 6% (zoo dua tswj ntawm 8% -14%), qhov teeb meem no yuav pom tseeb heev. Vim tias thaum cov ntsiab lus noo noo txo, cov fiber ntau ntawm covluam yeeb ntawv thawvshrinks, qhov yooj yim txo qis, lub brittleness nce, thiab tensile, cuam tshuam tsis kam, folding kuj thiab lwm yam khoom ua phem, tshwj xeeb tshaj yog thaum cov dej noo qis dua 5%, cov duab los qhia poob nws cov toughness; ua rau tawg kab teeb meem tshwm sim.
2. Kev cuam tshuam ntawm cov ntawv hauv paus siv raucov thawv luam yeeb
Hom thiab lub zog ntawm lub hauv paus ntawv siv nyob rau hauvhemp lub thawvyuav muaj qee yam cuam tshuam rau qhov teeb meem ntawm lub thawv luam yeeb tawg. Hom thiab lub zog ntawm cov ntawv hauv paus yog feem ntau txawv raws li qhov chaw ntawm cov ntoo pulp siv rau hauv daim ntawv, ntau yam ntawm cov ntoo pulp, thiab qib ntawm cov ntoo pulp cov ntsiab lus. Yog li ntawd, kuj tseem muaj kev paub ntau hauv kev yuav cov ntawv hauv paus, thiab peb yuav tsum tsom mus rau qhov zoo ntawm cov khoom siv raw es tsis yog tus nqi.
3. Lub zog ntawm lub thickness ntawmcov thawv luam yeeb
Hauv kev tsim khoom tiag tiag, nws pom tau tias qhov tuab ntawm cov thawv luam yeeb ua rau muaj qee yam cuam tshuam rau qhov teeb meem ntawm cov thawv luam yeeb tawg. Qhov tuab ntawm lub thawv luam yeeb, qhov ntau dua qhov kev hloov ntawm cov txheej txheej saum npoo thiab txheej txheej ntawm daim duab los qhia nyob rau hauv siab deformation thaum lub sij hawm slitting thiab nias. Yog li ntawd, ntau yam ntawm cardboard kuj suav rau ib feem ntawm yog vim li cas.
Post lub sij hawm: Oct-24-2022