PA cov txheej txheem cov yam ntxwv (3)

PA 6 polyamide 6 lossis nylon {{2}}: PA 6 yooj yim nqus kom ya raws, yog li tshwj xeeb yuav tsum tau them rau kom qhuav ua ntej kev ua. Yog tias cov khoom ntim tau muab ntim rau hauv cov dej tsis muaj dej tsis zoo, lub thawv yuav tsum khaws cia. Yog tias cov av noo ntau dua li 0. 2%, nws pom zoo kom qhuav hauv cov huab cua kub tshaj li ntawm 80 C rau 1 6 teev. Yog tias cov khoom siv tau tshaj tawm rau huab cua ntev dua 8 teev, nws raug nquahu kom ua lub tshuab nqus tsev kom qhuav ntawm 105 C rau ntau dua ntawm 8 teev.

Melting qhov kub thiab txias: 230 ~ 280 C, 250 ~ 280 C rau hom khoom txhawb. Pwm kub: 80 ~ 90 C. Cov pwm kub ua rau muaj qhov cuam tshuam txog cov crystallinity, uas nyob rau hauv lem cuam tshuam rau cov neeg kho tshuab khoom ntawm cov yas. Lub crystallinity yog qhov tseem ceeb heev rau cov qauv hauv seem, yog li cov pwm kub tau pom zoo kom muab 80 ~ 90 C.

Rau nyias-phab ntsa, ntev-ntws yas qhov chaw kuj pom zoo kom thov ua lub siab dua pwm kub. Ua kom cov pwm kub tuaj yeem ua rau muaj zog thiab nruj ntawm cov yas, tab sis txo qhov nro. Yog tias cov phab ntsa tuab tshaj li ntawm 3 hli, nws raug nquahu kom siv qhov kub ntawm cov pwm ntawm 20 ~ 40 C. Txog rau cov ntaub ntawv iav, cov pwm kub yuav tsum siab tshaj li 80 C. Kev txhaj tshuaj siab: feem ntau ntawm 750 ~ 1250 bar (nyob ntawm cov khoom siv thiab cov khoom tsim).

Kev txhaj tshuaj nrawm: kev kub ceev (me ntsis txo rau cov khoom siv tiv thaiv). Khiav thiab lub rooj vag: Vim tias lub sijhawm teem ntawm PA 6 luv heev, qhov chaw ntawm lub rooj vag tseem ceeb heev. Lub laj kab lub rooj vag yuav tsum tsis pub tsawg dua 0. 5 * t (qhov twg t yog qhov tuab ntawm qhov feem yas). Yog tias koj siv cov kub khiav, lub rooj vag loj yuav tsum me dua li siv cov kev sib tw khiav tawm, vim hais tias cov kub khiav tau tuaj yeem pab tiv thaiv cov khoom los ua kom tawv nqaij ua ntej. Yog tias lub qhov rooj hauv qab dej siv, qhov tsawg kawg nkaus ntawm lub rooj vag yuav tsum yog 0.7 5 hli.