Menene yankakken carbon fiber?

Zaren carbon da aka yanka shi ne zaren carbon da aka yanke. A nan zaren carbon canji ne kawai na siffar jiki, daga zaren carbon zuwa zaren short filament, amma aikin zaren carbon da aka yanke shi da kansa bai canza ba. To me yasa kake son yanke zaren mai kyau?
Da farko, dole ne mu fara daga tsarin ƙera kayan haɗin. Yawanci ana saka filament ɗin fiber na carbon a cikin zane na carbon fiber ko kuma a yi shi da carbon fiber prepreg, sannan a yi ta cikintsarin ƙera, RTM, jakar injin, gwangwani masu zafi da sauran hanyoyin aikia cikin nau'ikan samfuran haɗakar zare na carbon. Tabbas, akwai kuma wasu hanyoyin ƙera waɗanda ba sa buƙatar kayan matsakaici, kai tsaye ta hanyar filament na zare na carbon don ƙera su, kamar ƙera pultrusion, ƙera lanƙwasa da sauransu.
Zaren carbon da aka saka a cikin zane na zaren carbon ko aka yi shi da prepreg, je don yin samfura, akwai rashin amfani na halitta, ba shi da kyau a manne masa siffar. Kasancewar zaren shine don ba da siffar kayan haɗin, zaren yana da irin siffar, kayan haɗin ƙarshe kuma yana da irin siffar. Duk da haka, idan zaren carbon fiber ko prepreg bai dace da zaren ba, siffar kayan haɗin bai dace da siffar zaren ba. Bugu da ƙari, a wasu kusurwoyi, zaren carbon fiber yana da sauƙin haɗawa, yana samar da rami na gida, wanda a ƙarshe yana haifar da raguwar aikin samfuran haɗin carbon fiber.
Filamin carbon fiber da ke cikin zanen carbon fiber ko prepreg yana ɗaure kuma ba shi da sauƙin motsawa. Musamman ma a yanayin matsin lamba, motsi na resin da carbon fiber yana da rauni sosai, wanda daga ƙarshe zai haifar da matsalolin ƙira ko lalacewar aiki.
Gajeren tsawon, mafi kyawun ruwan da ke cikinyankakken zaren carbonYa kamata a sani cewa ƙera allura ita ce fasahar da aka fi amfani da ita kuma ta tsufa a tsarin ƙera filastik. Idan aka yi amfani da ita wajen samar da kayan haɗin gwiwa, zai zama babban sauyi.
Duk da haka, ba za a iya rage tsawon zaren carbon mai yankewa ba, saboda gajeriyar tsawon zaren carbon mai yankewa, haɗin resin da zaren carbon zai yi rauni. Domin haɗin da ke tsakanin resin da zaren carbon yana daidai da yankin hulɗar da ke tsakaninsu, idan an gajarta tsawon, to tabbas yankin hulɗar zai ragu.
Sannan akwai sabani a nan, wato, sabani tsakanin aikin zaren da aka yanke na gajeren zango da kuma motsi. Tsawon tsawon zaren, ƙarancin yiwuwar wargajewa, zaren da zaren za su kasance cikin sauƙin ɗaurewa, amma ƙarfin haɗin zaren da zaren zaren za su fi girma, daga aikin kayan haɗin zai fi girma. Tsawon zaren zai fi guntu, sauƙin wargajewa, tare da kyakkyawan kwarara, amma haɗin zaren da zaren zai ɗan yi rauni. Yadda ake daidaita wannan sabani, ana buƙatar a yi nazari, yawanci, don yin ƙananan ƙwayoyin filastik da aka ƙarfafa na carbon, tsawon kewayon 1-9mm.
Akwai kuma wata hanya ta ƙara ƙarfin haɗin kai tsakanin zare na carbon da resin, wanda shine wakili mai girma. Yawanci, akwai wakili mai girma a samanzare na carbonmasana'anta, wacce ake amfani da ita don kare zare na carbon daga lining a lokacin tattarawa, canja wurin aiki da kuma aiki, kuma a gefe guda, ana amfani da ita don haɗa zaren carbon da resin, da kuma taka rawar inganta ƙarfin haɗin gwiwa.
Duk da haka, wannan sinadari mai girman girma yana da asali ne don resin thermosetting. Yawancin resins da ake amfani da su wajen yin pellets resins ne na thermoplastic, don haka dole ne a sake daidaita sinadari mai girman girma. Ɗaya shine a ƙona sinadari mai girman asali kuma a yi sabon sinadari mai girman girma. Ɗaya shine a ƙona sinadari mai girman asali kuma a yi sabon sinadari mai girman girma; ɗayan kuma shine a sake yin sinadari mai girman girma bisa ga sinadari mai girman asali, wanda ake kira sinadari mai girman girma na biyu.
Baya ga yin granules don ƙera allura,yankakken zaren carbonyana da wasu amfani, kamar an yi shi da tabarmar carbon fiber, ko kuma an yi shi da takardar carbon fiber. Tsawon da ake buƙata na yankakken carbon fiber zai fi tsayi fiye da tsawon yankakken fiber don granules.
Bugu da ƙari, ban da zare-zaren carbon da aka yanka ba zato ba tsammani, akwai kuma zare-zaren carbon da aka yanka a haɗe. Wannan zare-zaren yana cikin yanke-yanke kafin a ja zaren carbon don wani nau'in da aka riga aka ƙayyade, sannan a yanke daga zaren shortcut yana da halaye kamar daki, wanda ya ƙunshi adadin resin zai fi sauran zaren shortcut yawa.