Cov txheej txheem tuag-txiav rau iav tiv thaiv zaj duab xis

Nyob rau hauv txoj kev tuag-txiav,iav tiv thaiv zaj duab xis yuav tsum tau txiav nyob rau tib lub sij hawm raws li lub ntsej muag cov ntaub ntawv thiab cov nplaum, tab sis theoretically, tuag-txiav daim ntawv zoo li cov ntaub ntawv yog ua ke ntawm cov cuab yeej txiav thiab daim ntawv quab yuam puas, uas yog, riam hniav downward txiav kuj yuav nyem daim ntawv. , yog li ntawd, kuj hais lus, kev tuag-txiav qhov tseeb ntawm cov ntaub ntawv zoo li ntawv tsis siab. Cov qauv kev soj ntsuam feem ntau pom ntawm qee cov ntawv muaj burrs, uas yog vim cov khoom siv fiber ntau yog cov ntxhib ntxhib, thiab cov ntsiab lus ntawm cov khoom xyaw los ntawm lub ntuj tawg.

iav tiv thaiv zaj duab xis yog ua raws li cov yam ntxwv ntawm kev tuag-txiav cov ntaub ntawv, thiab coj mus rau hauv tus account qhov hnav thiab tsim kua muag ntawm riam hniav, PE tiv thaiv zaj duab xis manufacturers tiaj tus tuag-txiav riam lub kaum sab xis ntawm 52 °, piv txwv tias lub kaum sab xis loj dua, lub extrusion. deformation ntawm cov khoom yog qhov tseem ceeb, uas yog, kab rov tav kev taw qhia ntawm lub regional tivthaiv quab yuam yuav ua rau cov khoom tawg qhov txawv qhov tshwm sim intensified. Raws li feem ntau ntawm cov ntaub ntawv zaj duab xis muaj toughness thiab yuav tsis raug puas tsuaj, txiav los ntawm ob feem peb yog tsis tsim nyog rau tag nrho txiav los yog txiav lub thickness ntawm plaub feem tsib nyob rau hauv thiaj li yuav txiav; txwv tsis pub, kab ntawm cov khib nyiab yuav raug tshem tawm ua ke nrog daim ntawv lo.

Cov iav tiv thaiv zaj duab xis nto cov khoom siv lub zog thiab cov khoom nto thickness, fiber ntau (macromolecule) qauv, thiab av noo. Nyob rau hauv cov txheej txheem tuag-txiav ntawm PET cov ntaub ntawv tiv thaiv zaj duab xis, lub ntsiab tseem ceeb ntawm cov khoom siv saum npoo yog qhov ceev ntawm slagging. Qhov ntau dua cov av noo ntawm qhov teeb meem, manufacturers ntawm PE tiv thaiv zaj duab xis tom qab ya raws, lub zog tsis muaj zog, randomly rub tawm, thiab txawm tias tsis tuaj yeem tso tawm.

Cov iav tiv thaiv zaj duab xis siv nws lub ntsej muag khoom tuab. Cov khoom tuab yuav cuam tshuam ncaj qha rau qhov tob ntawm qhov tuag-txiav; lub thicker nws cov khoom yog, qhov ntau tuag-txiav nws yuav. Vim hais tias denser cov khoom, qhov siab dua qhov yog ntawm kev tuag-txiav, yog li lub caij nyoog me ntawm kev txiav los ntawm lub hauv paus ntawv. Qhov thinner cov khoom, qhov ntau xws li kev txiav los ntawm qhov tsis xws luag. Paub qhov txawv ntawm lub ntsej muag khoom thiab cov ntawv hauv paus; Piv txwv li, nws tuaj yeem yog 80g / m2 thiab 60g / m2, nyob rau hauv txoj kab nrog lub rooj pav ca siab daim ntawv lo tshuab tuag-txiav. Kev tshawb fawb pom tias 80g / m2 cov khoom siv tuag-txiav pov tseg yog qhov qub; hloov mus rau 60g / m2 cov khoom siv, kev txiav tuag feem ntau ua rau cov khib nyiab tawg, cov ntawv hauv paus raug txiav, poob ntawm daim ntawv lo, thiab lwm yam tshwm sim, yuav tsum tau nres ntau zaus thiab cov phaj phaj.