Yuav ua li cas txheeb xyuas thiab xaiv ntawm PA6 hloov kho thiab PA66 (Pib 2) li cas?

Point 5: Yuav Ua Li Cas Xaiv Ntawm PA6 thiab PA66?

1. Thaum tsis muaj qhov kub thiab txias siab tshaj 187 ° C tsis tas yuav tsum tau, xaiv PA6 + GF, vim nws yog tus nqi ntau dua thiab ua haujlwm yooj yim dua.
2. Rau cov ntawv thov uas xav tau qhov kub thiab txias, siv PA66 + GF.
3. HDT (Tsuas Kub Deflection Temperature) ntawm PA66 + 30GF yog 250 ° C, thaum PA6 + 30GF yog 220 ° C.

PA6 muaj cov tshuaj lom neeg thiab lub cev zoo ib yam li PA66, tab sis nws muaj qhov qis qis thiab qhov kub ua haujlwm ntau dua. Nws muaj kev cuam tshuam zoo dua thiab hnyav dua li PA66 tab sis muaj kev nqus dej ntau dua. Txij li muaj ntau yam zoo ntawm cov khoom yas raug cuam tshuam los ntawm kev nqus dej, qhov no yuav tsum tau ua tib zoo xav thaum tsim cov khoom siv nrog PA6.

Txhawm rau kom ntseeg tau tias cov khoom siv kho tshuab ntawm PA6, ntau yam hloov pauv feem ntau ntxiv. Cov iav fiber ntau yog ib qho khoom siv ntxiv, thiab cov roj hmab hluavtaws kuj tseem tuaj yeem siv los txhim kho kev cuam tshuam.

Rau unreinforced PA6, qhov shrinkage tus nqi nyob ntawm 1% thiab 1.5%. Ntxiv cov iav fiber ntau tuaj yeem txo qis rau 0.3% (txawm tias me ntsis siab dua nyob rau hauv cov kev taw qhia perpendicular rau qhov ntws). Qhov kawg shrinkage tus nqi yog feem ntau cuam tshuam los ntawm crystallinity thiab noo noo nqus.

Point 6: Qhov sib txawv ntawm Kev Txhaj Tshuaj Molding rau PA6 thiab PA66

1. Kev kho kom qhuav:

• PA6 absorbs noo noo yooj yim heev, yog li ua ntej ua kom qhuav yog qhov tseem ceeb.
  • Yog tias cov khoom tau muab tso rau hauv cov khoom ntim dej noo, khaws lub thawv ntim.
  • Yog tias cov dej noo ntau tshaj 0.2%, qhuav hauv huab cua kub ntawm 80 ° C lossis siab dua rau 3-4 teev.
  • Yog tias raug huab cua ntau tshaj 8 teev, lub tshuab nqus tsev kom qhuav ntawm 105 ° C rau 1-2 teev yog pom zoo.
  • Cov tshuab dehumidifying tau qhia.
• PA66 tsis tas yuav ziab yog tias cov khoom raug kaw ua ntej ua haujlwm.
  • Yog tias lub thawv ntim tau qhib lawm, ziab nws hauv cov cua kub ntawm 85 ° C.
  • Yog tias cov dej noo ntau tshaj 0.2%, lub tshuab nqus tsev ziab ntawm 105 ° C rau 1-2 teev yog tsim nyog.
  • Lub tshuab dehumidifying tau pom zoo.

2. Moulding Kub:

• PA6: 260-310 ° C (rau cov qib ntxiv: 280-320 ° C).
• PA66: 260-310 ° C (rau cov qib ntxiv: 280-320 ° C).

  More info., pls contact lucy@taifeng-fr.com