Kodi nkhungu ya LFT ndi chiyani ndipo pali kusiyana kotani ndi nkhungu ya SMC

1. Chiyambi cha LFT
LFT, ulusi wautali wolimbitsa thermoplastic, English ndi Long Fiber reinforced Thermoplastics, poyerekeza ndi fiber wamba yolimbitsa thermoplastic zakuthupi, nthawi zambiri, utali wa fiber wowonjezera thermoplastic zakuthupi ndi zosakwana 1 mm, pomwe LFT, kutalika kwa fiber nthawi zambiri kumakhala kuposa 2 mm. Ukadaulo wamakono wamakono watha kusunga utali wa fiber mu LFT pamwamba pa 5 mm.
2. Kupanga kwa LFT
Kusanthula kwa LFT (Long Glass Fiber Reinforced Plastic) kumatengera ukadaulo wowunikira ma micro-spectrum, omwe amasanthula zomwe zili mugawo lililonse lazinthu zojambulidwa kudzera pa Micro-spectrum ndikubwezeretsanso fomula yoyambira. Zida zazitali zolimba za fiber-reinforced thermoplastic zimayerekezedwa ndi zida wamba zolimbitsa ulusi wa thermoplastic. Utoto wa matrix womwe umagwiritsidwa ntchito kwambiri ndi PP, wotsatiridwa ndi PA, ndipo ma resin ena monga PBT, PPS, ndi SAN amagwiritsidwanso ntchito. LFT ili ndi ntchito zambiri pamagalimoto, ndipo mwayi waukulu ndikusinthasintha komwe zidazo zimatha kuphatikizidwa.
Chachitatu, kusiyana pakati pa LFT ndi SMC
Njira yopangira zinthu za pepala la LFT ndi yofanana kwambiri ndi SMC (Sheet Molding) mu thermosetting composite glass fiber reinforced plastics. Amapangidwanso ndi kukanikiza mapepala mu nkhungu. LFT ndi pepala lolimba lomwe limatenthedwa ndi kufewetsa ndiyeno kuzizira kozizira mu nkhungu, pamene SMC imatenthedwa ndi kutentha pambuyo poti pepala lofewa lozizira likuyikidwa mu nkhungu.
Poyerekeza ndi pepala la SMC, magwiridwe antchito a LFT ali ndi izi:
1. Zopanda vuto komanso zopanda kukoma, zimatha kukonza malo ogwirira ntchito.
2. Kulemera kopepuka, kachulukidwe ndi 1 ~ 1.2g / cm3 yokha.
3. Zotsalira ndi zinyalala zitha kubwezeretsedwanso kuti zichepetse zinyalala.
4. Mphamvu ndizokwera kuposa SMC, ndipo kulimba kwake ndikodabwitsa kwambiri.
5. Kukana kwa dzimbiri ndi ntchito yabwino yamagetsi.
6. Kuthamanga kwa mankhwala kumathamanga kangapo kuposa SMC, ndipo kupanga bwino kumakhala bwino kwambiri.