Carbon Fiber - Huab tais ntawm cov ntaub ntawv?
Cov pa roj carbon fiber ntau yog cov khoom siv hnyav thiab muaj zog heev uas tau dhau los ua neeg nyiam hauv ntau qhov kev lag luam, suav nrog aerospace, tsheb, thiab cov khoom ua si. Qhov ceev ntawm carbon fiber, thaum ua ke nrog epoxy resin, kuj yog ib qho tseem ceeb ntawm nws cov kev ua tau zoo.
Thaum cov pa roj carbon fiber ua ke nrog epoxy resin, nws tsim cov khoom sib xyaw uas sib dua thiab muaj zog dua li ntau cov hlau. Piv txwv li, qhov ceev ntawm cov hlau yog kwv yees li 7.85 grams ib cubic centimeter (g / cm3), thaum qhov ceev ntawm txhuas yog 2.7 g / cm3. Hauv kev sib piv, qhov ceev ntawm carbon fiber nrog epoxy resin tuaj yeem nyob ntawm 1.4 txog 1.8 g / cm3, nyob ntawm seb hom carbon fiber ntau siv.
Qhov qis qis no yog ib qho ntawm cov laj thawj tseem ceeb vim li cas cov pa roj carbon fiber ntau yog cov khoom tsim nyog rau ntau daim ntawv thov. Thaum qhov hnyav yog qhov tseem ceeb, xws li hauv aerospace lossis motorsports, kev siv cov pa roj carbon fiber ntau tuaj yeem pab txo qhov hnyav tag nrho ntawm lub tsheb lossis dav hlau, ua rau kev txhim kho thiab kev ua haujlwm zoo. Tsis tas li ntawd, qhov tsawg ntawm cov pa roj carbon fiber ntau nrog epoxy resin ua kom yooj yim rau kev tswj thiab ua haujlwm nrog ntau dua cov hlau, uas tuaj yeem ua tau zoo dua thaum tsim khoom.
Lwm qhov txiaj ntsig ntawm qhov tsis tshua muaj siab ntawm carbon fiber nrog epoxy resin yog nws qhov cuam tshuam tsis kam. Thaum cov hlau tuaj yeem dent lossis deform thaum raug cuam tshuam, carbon fiber composites muaj kev tiv thaiv ntau dua rau kev puas tsuaj. Qhov no ua rau nws yog ib qho khoom siv zoo tshaj plaws los siv hauv kev tiv thaiv iav xws li kaus mom hlau thiab lwm yam khoom siv kev nyab xeeb.
Txawm hais tias nws yog qhov sib dua ntawm cov hlau, carbon fiber ntau nrog epoxy resin tseem tuaj yeem muaj zog heev. Cov pa roj carbon fiber muaj lub zog tensile ntawm ib ncig ntawm 3, 000 megapascals (MPa), thaum lub zog tensile ntawm cov hlau yog nyob ib ncig ntawm 400 MPa. Thaum ua ke nrog epoxy resin, carbon fiber lub zog tuaj yeem siab dua.
Hauv kev xaus, qhov ceev ntawm carbon fiber nrog epoxy resin ua rau nws yog ib qho khoom tsim nyog rau ntau yam kev siv uas nws lub teeb yuag, lub zog, thiab kev cuam tshuam tseem ceeb. Txawm hais tias nws yuav tsis haum rau txhua daim ntawv thov, nws cov khoom tshwj xeeb ua rau nws yog qhov kev xaiv zoo tshaj plaws rau ntau qhov kev lag luam, thiab nws yuav zoo li txuas ntxiv mus rau qhov muaj koob meej vim cov ntaub ntawv tshiab thiab cov txheej txheem tsim khoom.
