nkhani

Utomoni wa ma composites a thermoplastic umaphatikizapo mapulasitiki a uinjiniya wamba komanso apadera, ndipo PPS ndi woyimira mapulasitiki apadera, omwe amadziwika kuti "golide wapulasitiki".Ubwino wa magwiridwe antchito ndi awa: kukana kutentha kwambiri, makina abwino amakina, kukana kwa dzimbiri, komanso kudziwotcha mpaka mulingo wa UL94 V-0.Chifukwa PPS ili ndi zabwino zomwe zili pamwambapa, komanso poyerekeza ndi mapulasitiki ena apamwamba kwambiri a thermoplastic engineering, ili ndi mawonekedwe osavuta kukonza komanso otsika mtengo, motero yakhala njira yabwino kwambiri yopangira utomoni wopanga zinthu zophatikizika.

PPS kuphatikiza magalasi ang'onoang'ono (SGF) ophatikizika azinthu ali ndi zabwino zamphamvu kwambiri, kukana kutentha kwambiri, kuletsa moto, kukonza kosavuta, mtengo wotsika, ndi zina zambiri.
PPS yaitali galasi CHIKWANGWANI (LGF) gulu lili ndi ubwino mkulu toughness, otsika warpage, kutopa kukana, zabwino mankhwala maonekedwe, etc. Angagwiritsidwe ntchito impellers, mpope casings, mfundo, mavavu, mankhwala mpope impellers ndi casings, madzi ozizira. ma impellers ndi Zipolopolo, zida zapanyumba, ndi zina.

Ndiye pali kusiyana kotani komwe kumapangidwa ndi magalasi amfupi (SGF) ndi magalasi aatali (LGF) olimbitsa ma PPS ophatikizana?

Makhalidwe athunthu a PPS/SGF (magalasi afupiafupi) ophatikizika ndi ma PPS/LGF (magalasi aatali fiber) amafananizidwa.Chifukwa chomwe kusungunula kulowetsedwa kumagwiritsidwa ntchito pokonzekera wononga granulation ndikuti kulowetsedwa kwa mtolo wa ulusi kumazindikirika mu nkhungu ya impregnation, ndipo ulusi sunawonongeke.Potsirizira pake, kupyolera mu kuyerekezera kwa deta yazinthu zamakina awiriwa, zikhoza kupereka chithandizo chaumisiri kwa ogwira ntchito-mbali ya sayansi ndi zamakono posankha zipangizo.

Kusanthula katundu wamakina
Ulusi wolimbitsa womwe umawonjezedwa mu resin matrix ukhoza kupanga chigoba chothandizira.Pamene zinthu zophatikizika zimayendetsedwa ndi mphamvu yakunja, ulusi wolimbikitsayo ukhoza kunyamula katundu wakunja;nthawi yomweyo, imatha kuyamwa mphamvu kudzera m'mitsempha, mapindikidwe, ndi zina zambiri, ndikuwongolera magwiridwe antchito a utomoni.

Pamene magalasi opangira magalasi akuwonjezeka, ulusi wambiri wagalasi muzinthu zophatikizika umagonjetsedwa ndi mphamvu zakunja.Nthawi yomweyo, chifukwa cha kuchuluka kwa ulusi wagalasi, matrix a utomoni pakati pa ulusi wagalasi amakhala wocheperako, zomwe zimapangitsa kuti pakhale mafelemu olimbitsa magalasi;Choncho, kuwonjezeka kwa magalasi opangidwa ndi magalasi kumathandizira kuti zinthu zophatikizika zisunthire kupsyinjika kochulukirapo kuchokera ku utomoni kupita ku utomoni wagalasi pansi pa katundu wakunja, zomwe zimathandizira bwino kugwedezeka ndi kupindika kwa zinthu zophatikizika.
Zomwe zimakhazikika komanso zosinthika zamagulu a PPS/LGF ndizokwera kuposa zamagulu a PPS/SGF.Pamene gawo lalikulu la galasi la galasi ndi 30%, mphamvu zowonongeka za PPS / SGF ndi PPS / LGF composites ndi 110MPa ndi 122MPa, motero;Mphamvu zosinthika ndi 175MPa ndi 208MPa, motsatana;ma flexural elastic moduli ndi 8GPa ndi 9GPa, motsatana.
Mphamvu zowonongeka, mphamvu zowonongeka ndi zowonongeka zowonongeka zamagulu a PPS / LGF zidawonjezeka ndi 11.0%, 18.9% ndi 11.3%, motsatira, poyerekeza ndi PPS / SGF composites.Kutalika kwa kusungirako kwa fiber magalasi muzinthu zophatikizika za PPS/LGF ndizokwera kwambiri.Pansi pa zomwe zili mugalasi la fiber, zinthu zophatikizika zimakhala ndi kukana kwamphamvu komanso makina abwinoko.