Momwe mungadziwire bwino ndikusankha pakati pa PA6 ndi PA66 (Gawo 2)?

Mfundo 5: Momwe Mungasankhire Pakati pa PA6 ndi PA66?

1. Pamene kutentha kwapamwamba pamwamba pa 187 ° C sikofunikira, sankhani PA6 + GF, chifukwa ndi yotsika mtengo komanso yosavuta kuikonza.
2. Pazinthu zomwe zimafuna kukana kutentha kwambiri, gwiritsani ntchito PA66+GF.
3. HDT (Heat Deflection Temperature) ya PA66+30GF ndi 250°C, pomwe ya PA6+30GF ndi 220°C.

PA6 ili ndi mankhwala komanso thupi lofanana ndi PA66, koma ili ndi malo otsika osungunuka komanso kutentha kwakukulu kokonzekera. Imapereka kukana kwamphamvu komanso kukana zosungunulira kuposa PA66 koma imakhala ndi mayamwidwe apamwamba kwambiri. Popeza makhalidwe ambiri a pulasitiki amakhudzidwa ndi kuyamwa kwa chinyezi, izi ziyenera kuganiziridwa mosamala popanga zinthu ndi PA6.

Kuonetsetsa kuti makina a PA6 amapangidwa, zosintha zosiyanasiyana zimawonjezeredwa nthawi zambiri. Ulusi wagalasi ndi chowonjezera chofala, ndipo mphira wopangira amathanso kuphatikizidwa kuti alimbikitse kukana.

Kwa PA6 yosalimbikitsidwa, kuchuluka kwa kuchepa kumakhala pakati pa 1% ndi 1.5%. Kuwonjezera ulusi wagalasi kumatha kuchepetsa kuchepa kwa 0.3% (ngakhale kukwezeka pang'ono kumayendedwe oyenda). Mlingo womaliza wa shrinkage umakhudzidwa makamaka ndi crystallinity ndi kuyamwa kwa chinyezi.

Mfundo 6: Kusiyana kwa Njira Zopangira jekeseni za PA6 ndi PA66

1. Kuyanika Chithandizo:

• PA6 imatenga chinyezi mosavuta, kotero kuyanika koyambirira ndikofunikira.
  • Ngati zinthuzo zaperekedwa m'mapaketi oletsa chinyezi, sungani chidebecho chosindikizidwa.
  • Ngati chinyezi chikuposa 0.2%, chiwumitseni mu mpweya wotentha pa 80 ° C kapena pamwamba pa maola 3-4.
  • Ngati mutakumana ndi mpweya kwa maola opitilira 8, kuyanika ndi vacuum pa 105 ° C kwa maola 1-2 ndikofunikira.
  • Chowumitsira dehumidifying chimalangizidwa.
• PA66 sikutanthauza kuyanika ngati zinthuzo zasindikizidwa musanakonze.
  • Ngati chidebe chosungirako chatsegulidwa, chiwunikeni pa mpweya wotentha pa 85 ° C.
  • Ngati chinyezi chikuposa 0.2%, kuyanika ndi vacuum pa 105 ° C kwa maola 1-2 ndikofunikira.
  • Chowumitsira chochepetsera chinyezi ndikulimbikitsidwa.

2. Kutentha kwa Kuumba:

• PA6: 260–310°C (kwa magiredi olimbitsa: 280–320°C).
• PA66: 260–310°C (kwa magiredi olimbitsa: 280–320°C).

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