Ntim daim kab xev ua lub luag haujlwm tseem ceeb hauv kev xa khoom.Yog tias tsis muaj daim kab xev ntim khoom tsim nyog, cov pob yuav tsis raug kaw kom zoo, ua kom yooj yim rau cov khoom raug nyiag lossis puas, thaum kawg nkim sijhawm thiab nyiaj txiag.Vim li no, daim kab xev ntim khoom yog ib qho tseem ceeb tshaj plaws, tab sis cov ntaub ntawv tseem ceeb ntawm cov kab ntim khoom.

Muaj ob hom kev ntim cov ntaub nplaum uas yog tus thawj coj hauv Asmeskas kev lag luam, ob qho tib si yog tsim los ua kev lag luam thiab txhim khu kev qha hauv lawv daim ntawv thov: kub yaj thiab acrylic.

Cov kab xev no pib nrog kev tiv thaiv ruaj khov, feem ntau yog ib zaj duab xis los yog cam khwb cia.Blown films feem ntau muaj ntau elongation thiab tuav tsawg load ua ntej tawg, whereas cam khwb cia cov yeeb yaj duab yog ntau uniform thiab stretch tsawg, tab sis kov ntau kev ntxhov siab los yog load ua ntej tawg.

Hom nplaum yog qhov sib txawv loj hauv kev ntim cov kab xev.

Kub yaj tapestau txais lawv lub npe los ntawm cov cua sov siv rau kev sib xyaw thiab txheej thaum lub sijhawm tsim khoom.Kub melts yog tsim los ntawm kev siv cov txheej txheem extrusion, qhov twg tag nrho cov khoom nplaum - resins thiab hluavtaws roj hmab - raug cua sov thiab siab rau kev sib xyaw.Cov txheej txheem kub yaj extrusion qiv nws tus kheej los tsim cov khoom lag luam uas muaj cov khoom shear siab - lossis cohesive zog.Xav txog dag putty, piv txwv li.Koj yuav tsum rub ib ntus ntawm ob qhov kawg kom tau lub putty kom ncav cuag nws qhov tawg.Cov khoom siv siab shear, zoo li dag putty, yuav siv lub zog loj heev kom ncav cuag nws qhov tawg.Lub zog no yog muab los ntawm cov roj hmab hluavtaws, uas muab elasticity thiab resilience rau cov nplaum.Thaum cov nplaum tau ua nws txoj hauv kev los ntawm extruder, nws yog tom qab ntawd coated rau zaj duab xis, ua tiav los ntawm qhov txias thiab tom qab ntawd rov ua dua los tsim "jumbo" yob ntawm daim kab xev.

Cov txheej txheem ntawm kev ua acrylic daim kab xev yog yooj yim npaum li cas ntawm kub melts.Acrylic ntim tapesfeem ntau yog tsim los ntawm txheej txheej ntawm cov nplaum uas tau muab sib xyaw nrog dej lossis cov kuab tshuaj kom yooj yim rau kev ua tiav thaum txheej rau zaj duab xis.Thaum nws yog coated, cov dej los yog hnyav yog evaporated thiab recaptured siv lub qhov cub cua sov system, tawm hauv qab acrylic nplaum.Tom qab ntawd cov yeeb yaj kiab coated yog rov qab mus rau hauv "jumbo" yob ntawm daim kab xev.

Raws li qhov sib txawv ntawm ob daim kab xev thiab lawv cov txheej txheem zoo li, lawv ob leeg mus dhau los ntawm cov txheej txheem hloov pauv tib txoj kev.Qhov no yog qhov uas "jumbo" yob raug txiav rau hauv cov khoom me me "cov khoom tiav" yob uas cov neeg siv khoom siv tau.