Dab tsi yog Stretch Film Ua Los ntawm

Dab tsi yog stretch film ua los ntawm?

Stretch zaj duab xis yog ib qho khoom siv ntim khoom siv los ntawm cov khoom siv yas zoo heev hu ua polyethylene. Polyethylene yog cov khoom siv ntau yam polymer uas tau siv dav hauv kev lag luam thiab kev lag luam vim nws lub zog tensile zoo, ua haujlwm ntev, thiab tsis kam mus ya raws, tshuaj, thiab lwm yam ib puag ncig.

Cov txheej txheem ntawm kev tsim cov yeeb yaj kiab muaj xws li extruding molten polyethylene los ntawm kev tuag, uas tsim cov yeeb yaj kiab nyias, hloov tau yooj yim uas tuaj yeem ncab thiab qhwv ib ncig ntawm cov khoom thiab cov khoom rau ntim thiab xa khoom. Tom qab ntawd cov yeeb yaj kiab raug mob rau cov yob ntawm ntau qhov ntau thiab tsawg, tuab, thiab qib, nyob ntawm daim ntawv thov.

Stretch zaj duab xis yog cov khoom ntim tseem ceeb uas muab kev tiv thaiv zoo rau cov khoom thaum thauj thiab khaws cia. Nws yog dav siv nyob rau hauv ntau yam kev lag luam, nrog rau cov khoom noj thiab dej haus, tshuaj, tsheb, khw muag khoom, thiab ntau ntxiv. Cov yeeb yaj kiab elasticity tso cai rau nws los ua raws li cov duab thiab cov khoom lag luam, muab cov khoom siv nruj thiab ruaj ntseg uas tiv thaiv noo noo, plua plav, thiab cov khib nyiab los ntawm kev nkag mus.

Zuag qhia tag nrho, stretch zaj duab xis yog ntau yam thiab raug nqi ntim tshuaj uas ua tiav cov kev xav tau ntawm ntau qhov kev lag luam. Nws yog ib qho tseem ceeb ntawm kev lag luam ntim niaj hnub, muab kev tiv thaiv zoo thiab yooj yim rau cov khoom lag luam thiab kev lag luam ib yam nkaus.