Cov khoom siv sib xyaw yog hais txog cov khoom siv tshiab uas tau sib xyaw ua ke los ntawm ntau yam khoom siv.Cov khoom siv carbon fiber ntau peb feem ntau hais yog cov khoom sib xyaw thiab hu ua "dub kub" hauv cov khoom sib xyaw.Cov khoom siv carbon fiber ntau yog tsim los ntawm cov khoom siv carbon fiber ntau thiab cov ntaub ntawv matrix.(Matrix cov ntaub ntawv xws li resin, ceramics, hlau, thiab lwm yam) ua ke cov ntaub ntawv, qhov zoo tshaj plaws kev ua tau zoo ua rau nws yog ib tug zoo txiav npluav rau ib txwm cov ntaub ntawv.Kab lus no yuav tham txog qhov ua tau zoo ntawm cov khoom siv carbon fiber ntau.
1. Tsawg ceev heev
Qhov ceev ntawm carbon E-dimensional composite khoom yog tsawg heev, qhov ceev tsuas yog hais txog 1.5gcm3.Piv nrog cov ntaub ntawv hlau, xws li cov hlau nrog lub ntom ntom ntawm 7.8Gycm3, tus khub no tuaj yeem nrhiav tau qhov tseem ceeb ntawm 2.8Glcm3, cov khub no tuaj yeem ua rau muaj qhov hnyav ntawm cov khoom lag luam ua los ntawm cov khoom no yog kuj yog lub teeb heev, thiab nws muaj lub teeb yuag zoo heev hauv ntau qhov chaw, uas yog qhov ua tau zoo uas cov khoom siv hlau tsis muaj.
⒉ muaj zog heev
Cov khoom siv fiber ntau tawg muaj qhov ua tau zoo heev, uas tuaj yeem ncav cuag lub zog tensile ntawm 350OMPa.Piv nrog rau cov hlau, lub zog tensile ntawm cov hlau yog 65OMPa, thiab lub zog tensile ntawm aluminium alloy yog 42OMPa.Nyob rau hauv txoj kev no, nws tuaj yeem pom tias lub zog ua haujlwm siab ntawm carbon fiber zoo heev.Siab, tuaj yeem ua kom lub zog ua haujlwm ntawm cov khoom zoo kawg nkaus ua tau raws li qhov xav tau ntawm cov khoom dhau los, txawm tias cov pa roj carbon fiber ntau yog anisotropic, nws tseem yuav muaj zog ntau dua li cov khoom siv hlau.
3. Zoo corrosion kuj
Cov khoom siv roj carbon fiber ntau muaj qhov ua tau zoo ntawm cov kua qaub tiv thaiv, alkali tsis kam thiab oxidation tsis kam, uas ua rau cov khoom siv fiber ntau muaj qhov zoo ntawm ntau qhov kev thov ib puag ncig, xws li ib puag ncig ntub dej lossis cov khoom siv carbon fiber ntau uas feem ntau tawm sab nraum zoov, tsis yooj yim rau xeb. los yog qhov rais corrosion, nrog rau kev ua haujlwm siab heev.
4. Kev cuam tshuam zoo
Cov khoom siv carbon fiber ntau muaj kev cuam tshuam zoo heev.Tom qab ua rau cov khoom siv carbon fiber ntau, nws muaj kev cuam tshuam zoo heev thaum muaj kev sib tsoo loj.Txhawm rau kom muaj kev nyab xeeb ntawm lub tsheb, vim tias sab hauv ntawm cov khoom siv roj carbon fiber ntau yog cov pa roj carbon filament, uas txuas nrog zoo los ntawm cov khoom siv matrix, kom lub zog tuaj yeem tawg tau zoo thaum siv zog.
5. Zoo machinability
Cov ntaub ntawv carbon fiber tau txais kev hloov pauv ntawm cov fibers zoo heev, uas ua rau cov khoom siv fiber ntau ua los ntawm cov khoom siv fiber ntau muaj cov qauv tsim zoo heev, thiab tuaj yeem tsim tau yooj yim raws li cov neeg siv khoom xav tau, ua rau tag nrho cov khoom lag luam zoo dua.Nws tuaj yeem ua tau raws li qhov yuav tsum tau ua, thiab tseem tuaj yeem nqa tawm interlayer tsim nyob rau hauv nruab nrab ntawm cov khoom.Piv txwv li, muaj xws li daim ntawv thov tsim ntawm cov cuab yeej kho mob thiab cov tsheb ciav hlau ceev.Lub hnub qub lub teeb pom kev ua tau zoo dua, thiab nws kuj muaj lub zog zoo tsim qauv., yog li nws yooj yim dua rau kev siv tiag tiag ntawm cov khoom.
6. Tsawg coefficient ntawm thermal expansion
Cov khoom siv carbon fiber ntau muaj cov coefficient tsawg heev ntawm thermal expansion, uas kuj muaj kev ua tau zoo heev daim ntawv thov kom zoo dua nyob rau hauv ib co carbon fiber khoom uas yuav tsum tau precision, xws li telescopes, precision rulers, xws li Xuan Renwei nyob rau hauv aerospace thiab lwm yam teb.Cov khoom tuaj yeem ua rau tag nrho kev ua haujlwm zoo dua.
Post lub sij hawm: Dec-06-2022