iindaba

Iimpawu ezibonakalayo ze-composites zilawulwa yimicu. Oku kuthetha ukuba xa i-resins kunye ne-fibers zidityanisiwe, iipropati zabo zifana kakhulu nezo zemicu nganye. Idatha yovavanyo ibonisa ukuba iifiber-reinforced materials are components that carry most of the load. Ngoko ke, ukhetho lwelaphu lubalulekile xa kuyilwa izakhiwo ezidibeneyo.
Qala inkqubo ngokumisela uhlobo lokuqinisa olufunekayo kwiprojekthi yakho. Umenzi oqhelekileyo unokukhetha kwiintlobo ezintathu eziqhelekileyo zokuqinisa: i-glass fiber, i-carbon fiber kunye ne-Kevlar® (i-aramid fiber). Ifayibha yeglasi ithande ukuba lukhetho jikelele, ngelixa i-carbon fiber inika ukuqina okuphezulu kunye ne-Kevlar® ephezulu yokumelana ne-abrasion. Gcina ukhumbule ukuba iintlobo zendwangu zinokudibaniswa kwi-laminates ukuze zenze i-stacks hybride ezinika inzuzo yezinto ezingaphezu kwesinye.
I-Fiberglass Reinforcements
I-Fiberglass yinto eqhelekileyo. I-Fiberglass sisiseko soshishino lwee-composites. Isetyenzisiwe kwizicelo ezininzi ezihlanganisiweyo ukusukela ngoo-1950 kwaye iimpawu zayo ezibonakalayo ziqondwa kakuhle. I-Fiberglass ilula, inamandla aphakathi kunye noxinzelelo, inokumelana nomonakalo kunye nokulayisha i-cyclic, kwaye kulula ukuyiphatha. Iimveliso ezivela kwimveliso zaziwa njengemveliso yeplastiki eqinisiweyo ye-fiberglass (FRP). Iqhelekile kuzo zonke iinkalo zobomi. Isizathu sokuba ibizwa ngokuba yi-fiberglass kungenxa yokuba olu hlobo lwefilamenti lwenziwa ngokunyibilikisa i-quartz kunye nezinye izinto ze-ore kumaqondo obushushu aphezulu kwi-slurry yeglasi. Kwaye emva koko yakhutshwa ngesantya esiphezulu imicu. Olu hlobo lwefayibha ngenxa yokubunjwa kwezinto ezahlukeneyo zineenzuzo ezininzi kukumelana nobushushu, ukuxhathisa ubushushu, ukomelela okukhulu. Ukugquma kakuhle. Kwaye ifayibha yekhabhoni inesiphene esifanayo imveliso ibhityile. I-ductility engalunganga. Ayinyangeki. Okwangoku, ukugquma, ukugcinwa kobushushu, ukunqanda ukubola kulula kwaye amanye amasimi amaninzi asebenzisa iplastiki eyomeleziweyo yefiber.
I-Fiberglass yeyona isetyenziswa kakhulu kuzo zonke ii-composites ezikhoyo. Oku kubangelwa ubukhulu becala kwiindleko zayo eziphantsi kunye neempawu zomzimba eziphakathi. I-Fiberglass ifanelekele iiprojekthi zemihla ngemihla kunye namalungu angadingi ilaphu lefiber eyongezelelweyo ukomelela kunye nokuqina.
Ukwandisa iipropathi zamandla e-fiberglass, inokusetyenziswa kunye ne-epoxy resins kwaye inokunyangwa kusetyenziswa iindlela eziqhelekileyo zokuthambisa. Ifaneleke kakuhle izicelo kwimizi-mveliso yeemoto, zaselwandle, ezakhayo, zekhemikhali kunye ne-aerospace kwaye isetyenziswa ngokuqhelekileyo kwimpahla yezemidlalo.

I-Aramid Fiber Reinforcement
Ifayibha yeAramid yikhompawundi yeekhemikhali ezikumgangatho ophezulu. Inamandla amakhulu, ukumelana nobushushu obuphezulu, ukuxhathisa kwe-corrosion, ubunzima bokukhanya kunye nezinye iimpawu, kwaye yenye yezinto eziphambili kwishishini lokukhusela. Kukho inani elikhulu lezicelo kwizixhobo ze-bulletproof, izixhobo zokubhabha.
Iifayibha ze-Aramid yenye yezinto zokuqala eziphezulu zokwenziwa kwe-synthetic fibers ukufumana ukwamkelwa kwi-fiber-reinforced plastics (FRP) ishishini. Iintsinga zepara-aramid zodidi oluhlanganisiweyo zikhaphukhaphu, zinamandla athile okuqina, kwaye zithathwa njengokumelana kakhulu nempembelelo kunye nokuqhawuka. Usetyenziso oluqhelekileyo lubandakanya ii-hulls ezikhaphukhaphu ezifana ne-kayak kunye namaphenyane, iipaneli ze-fuselage zeenqwelomoya kunye nemikhumbi yoxinzelelo, iiglavu ezisikiweyo, iivesti ze-bulletproof kunye nokunye. Iifiber ze-Aramid zisetyenziselwa i-epoxy okanye i-vinyl ester resins.

Ukuqiniswa kweCarbon Fiber
Ngomxholo wekhabhoni ongaphezulu kwe-90%, i-carbon fiber inamandla aphakamileyo aphezulu kwishishini le-FRP. Ngapha koko, ikwanamandla oxinzelelo kunye nokuguquguquka kweshishini. Emva kokucutshungulwa, le micu iyadityaniswa ukuze yenze i-carbon fiber reinforcements efana nelaphu kunye neetowusi. Ukuqiniswa kwefayibha yekhabhoni kunika amandla athile aphezulu kunye nokuqina okuthe ngqo, kwaye ngokuqhelekileyo kubiza kakhulu kunezinye iziqinisekiso zefayibha.
Ukwandisa iipropati zamandla e-carbon fiber, kufuneka isetyenziswe kunye ne-epoxy resins kwaye inokunyangwa ngokusebenzisa iindlela eziqhelekileyo zokulahla. Ilungele ukusetyenziswa kwemoto, yaselwandle kunye ne-aerospace kwaye isoloko isetyenziswa kwimpahla yezemidlalo.