isicelo

Uninzi lwe-thermoplastics lunokuvuthelwa ukuveliswa kwefilimu ngokuvuthela ukubumba, ifilimu yokubumba ifilimu yeplastiki kukukhama kwityhubhu ebhityileyo, emva koko ibethe ngomoya ocinezelweyo ukuvuthela i-plastic bulge, emva kokupholisa ukugqibezela uyilo lwemveliso ye-tubular inwebu, olu hlobo lokusebenza kwefilimu phakathi ifilimu ejoliswe kuyo kunye nefilimu yolula: amandla angcono kunefilimu eyoluliweyo, ukutywinwa kobushushu kubi kunefilimu eyoluliweyo.

Kukho iintlobo ezininzi zefilimu eziveliswa ngendlela yokubumba isivuthelo, njengeUxinaniso olusezantsi lwepolyethylene (LDPE), i-polyethylene yomgca (LLDPE), i-polypropylene (PP), i-polyethylene ephezulu (i-HDPE), i-nylon (PA), i-ethylene ethylene acetate copolymer (EVA), njl. .

1. Izinto ezikhethiweyo ezikhethiweyo kufuneka zivuthelwe ifilimu yefilimu ye-polyethylene resin particles, equlethe umlinganiselo ofanelekileyo we-agent agent, ukuqinisekisa ukuvulwa kwefilimu.

I-2 resin particle melting index (MI) ayinakuba nkulu kakhulu, i-melting index (MI) inkulu kakhulu, i-viscosity ye-resin etyhidiweyo incinci kakhulu, uluhlu lokucubungula luncinci, iimeko zokucubungula zinzima ukulawula, ifilimu ye-resin impofu, akukho lula ukwenza ifilimu;Ukongezelela, i-melting index (MI) inkulu kakhulu, ukusabalalisa ubunzima be-molecular ye-polymer kuncinci kakhulu, kwaye amandla efilimu ahluphekile.Ngoko ke, kufuneka ukhethe isalathisi sokunyibilika (MI) sincinci, kunye nokusabalalisa ubunzima bemolekyuli yezixhobo ezibanzi ze-resin ekrwada, ukuze kuhlangatyezwane neemfuno zentsebenzo yefilimu, kodwa nokuqinisekisa ukusetyenzwa kweempawu ze-resin.Ifilimu yokubumba ifilimu ye-polyethylene isetyenziswa ngokubanzi kwisalathisi sokunyibilika (MI) phakathi kwe-2 kunye ne-6g / 10min ye-polyethylene ekrwada.

Inkqubo yokubumba ifilimu iphantse ibe ngolu hlobo lulandelayo:

I-Hopper yokulayisha imathiriyeli yeplastikhi yeplastiki → ukuvuthela → ukupholisa iringi yomoya → i-herringlet splint → i-traction roll traction → unyango lwe-corona → ukujija ifilim