Tam sim no, cov khoom siv hauv cov kav dej siv hauv tsheb tuaj yeem muab faib ua peb pawg, uas yog cov kav nylon, cov kav roj hmab thiab cov kav hlau. Cov kav nylon feem ntau siv yog PA6, PA11 thiab PA12, peb cov ntaub ntawv no hu ua aliphatic PA, PA6, PA12 rau kev sib txuas polymerization, PA11 rau kev sib txuas polymerization. Feem ntau, cov khoom siv molecular ntawm cov kav dej tsheb yooj yim dua, nws yooj yim dua rau crystallize.
Cov txheej txheem ua cov nylon raj yog:
▼ Cov txheej txheem extrusion: Cov khoom siv raw muab cov khoom siv raw rau cov kav dej xa khoom. Tus neeg xa khoom kav dej yuav tsum ua cov khoom me me rau hauv cov kav dej ua ntej, thiab cov khoom siv tsim khoom feem ntau yog tsim los ntawm ntau ntu
▼ Cov txheej txheem tsim: Ua kom cov yeeb nkab ncaj nraim mus rau hauv cov duab uas xav tau.
▼ Cov txheej txheem sib dhos: Raws li qhov yuav tsum tau tsim, qhov sib koom ua ke txuas nrog cov kav dej. Feem ntau muaj cov hom kev sib txuas hauv qab no: ① hom slub ② hom clamp
