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He aha te hangai LFT me te aha te rereketanga o te hangai SMC

2020-06-20
1. Whakataki ki te LFT
LFT, muka roa whakakaha rauemi thermoplastic, reo Ingarihi he Roa muka whakaū Thermoplastics, kua whakaritea ki te muka noa whakakaha rauemi thermoplastic, te tikanga, te roa muka o te muka whakaū rauemi thermoplastic he iti iho i te 1 mm, ia LFT, Ko te roa o te muka Ko te tikanga. nui ake i te 2 mm. Ko te hangarau tukatuka o naianei kua kaha ki te pupuri i te roa o te muka i roto i te LFT i runga ake i te 5 mm.
2. LFT titonga
Ko te tātaritanga LFT (Long Glass Fiber Reinforced Plastic) e ahu mai ana i runga i te hangarau tātari moroiti-tuhinga, e tātari ana i nga ihirangi o ia waahanga o nga mea kua tohua ma roto i te moroiti, ka whakahoki ano i te tauira taketake. Ka whakatauritea nga rauemi whakamaarama-a-whaa-roa ki nga taonga whakamaarama-a-waa. Ko te kapia matrix e tino whakamahia ana ko te PP, ka whai ko te PA, ka whakamahia ano etahi kapia penei i te PBT, PPS, me te SAN. He maha nga tono a LFT i roto i nga motuka, a ko te painga nui ko te ngawari ki te whakauru i nga rauemi.
Tuatoru, ko te rereketanga i waenga i te LFT me te SMC
Ko te mahi hanga hua o te pepa LFT he tino rite ki te SMC (Sheet Molding) i roto i te thermosetting hiato muka karaihe kirihou whakakaha. Ka mahia ano ma te pehi pepa i roto i te pokepokea ai. Ko te LFT he pepa pakeke ka whakamahanahia, ka whakamarohia, katahi ka pehia te makariri i roto i te maaka, i te wa e wera ana te SMC i muri i te tuunga o te pepa ngohengohe makariri ki roto i te pokepoke.
Ina whakaritea ki te pepa SMC, ko nga mahi hangarau o te pepa LFT nga painga e whai ake nei:
1. He kino me te reka, ka taea te whakapai ake i te taiao mahi.
2. Te taumaha marama, ko te kiato he 1~1.2g/cm3 anake.
3. Ka taea te hangarua nga parapara me nga hua para hei whakaiti i te para.
4. He teitei ake te kaha i te SMC, he tino rawe te kaha o te paanga.
5. Te aukati waikura me te pai ake o te mahi hiko.
6. He maha nga wa tere atu i te SMC te tere o te pehi hua, me te pai ake o te whakaputa.
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