PA66 tuaj yeem tsim tau los ntawm cov yas kev ua cov pa, xws li kev txhaj tshuaj molding, extrusion moulding, kev sib hloov moulding, tshuab molding, thermoforming, thiab cov zoo li. PA66 ua qhov ntsuas kub ntau yog nqaim, feem ntau hloov ntawm 10 ° C, qhov ntsuas qhov kub yog qhov tsawg me ntsis, nws yuav thaiv cov tsis muaj cav, qhov ntsuas kub siab siab, thiab PA66 yaj viscosity tee ntse. Yog li ntawd, xaiv txoj cai ntsia hlau kub yog qhov tseem ceeb tshaj plaws los xyuas kom zoo ntawm cov khoom.
PA66 lub pob ntseg yog rhiab heev rau dej, thiab ib qho dej me me ua rau lub tshuab rhuav pov tseg, thiab cov txhauv ze ntawm lub cev qis, thiab cov khoom siv dag zog ntawm cov khoom raug txo qis. Yog li no, cov dej ntsiab lus yuav tsum nruj me ntsis tswj. PA66 muaj feem ntau rau cov thermal oxidation thiab hloov daj. Nws yuav tsum tau qhuav los ntawm cua sov cua. Lub ziab txias yog 80-90 ° C, thiab lub sij hawm qhuav zis ntawm 5-8 h.
Vim lub ntsiab lus siab tshaj ntawm PA66, cov pwm kub kuj yuav tsum tau nce ntxiv. Yog hais tias cov pwm kub yog tsawg heev thiab qhuav yaj sai heev, cov khoom yuav ua kom muaj kev ntxhov siab. Qhov kev hloov ntawm PA66 cov khoom vim kev kub thiab dej nqus yog rov qab, thiab qhov hloov ntawm qhov ntxhov siab thiab tom qab crystallization yog irreversible. Thaum twg cov yaj-molded PA66 yog txias ntawm lub qhov lub raj ntswg, ntim shrinkage vim muaj kev hloov pwm, tshwj xeeb tshaj yog cov crystalline polymer xws li PA66, muaj ib lub xaim tshwj xeeb ntim hloov ntawm melting thiab solidification thiab crystallization. Qhov txawv ntawm qhov ntim ntawm lub cev thiab lub ntim ntawm lub cev kub yog qhov ntim ntawm lub cev. Yog hais tias tus shrinkage yog isotropic, ces nws lub hauv paus lub thawv yog lub thiaj li hu molding shrinkage. Nyob rau hauv qhov tseeb, lub shrinkage yog anisotropic, yog li nws yog nyuaj rau xam lub molding shrinkage.
Qhov kev nyuab siab thiab kev kub yau ntawm PA66 ntawm kev kub ntxhov tseem ua rau muaj kev hloov siab. Tus nqi ntawm qhov kev hloov ntawm txoj kev loj hlob muaj feem xyuam rau lub thickness ntawm ib feem thiab qhov kub ntawm qhov pwm. Raws li cov thickness tsub ntxiv, cov molding shrinkage ntawm PA66 nce ntxiv. Ntau cov khoom ntxiv xws li cov cua sov, cov khoom siv hluav taws xob, cov nplaim hluav taws, cov xim, cov kabmob loj, cov kabmob yas sib txuas, thiab lwm yam ntxiv tau rau PA66 kom ua tau zoo ntawm PA66 kom sib txawv.
