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Dab tsi yog qhov thermal expansion coefficient ntawm carbon fiber?

Views:230 Author: Linda Tshaj Tawm Sijhawm: 2022-10-14 keeb kwm:

               Cov pa roj carbon fiber ntau yog cov kev qhuab qhia, ntau yam khoom siv high-tech. Nws tuaj yeem siv rau ntau qhov chaw xws li cov khoom siv kis las, khoom siv kho mob, lub zog tshiab, tshuab, khoom siv hluav taws xob thiab lwm yam. Nws muaj cov khoom zoo xws li lub teeb yuag, siab zog, siab kub tsis kam, nkag tsis kam, poob siab tsis kam, tsis tshua muaj thermal expansion coefficient, thiab muaj zog tsim. Yog li dab tsi yog qhov thermal expansion coefficient ntawm carbon fiber?

              Thaum ib yam khoom raug cua sov, qhov tshwm sim uas nws qhov ntev lossis ntim nce yog hu ua thermal expansion, thiab coefficient ntawm thermal expansion (CTE) qhia txog qib uas cov khoom nthuav dav. Thermal expansion coefficient yuav muab faib ua linear expansion coefficient thiab ntim expansion coefficient, feem ntau yog hais txog linear expansion coefficient. Lub coefficient ntawm linear expansion yog hais txog txhua qhov kev hloov pauv hauv linearity, dav, thickness lossis txoj kab uas hla, thiab lwm yam ntawm cov khoom thaum rhuab, thiab sawv cev los ntawm lub cim R, uas yog, qhov sib txawv ntawm qhov ntev ntawm qhov kub hloov ntawm K, thiab nws chav tsev yog 1 / K. Thaum qhov kub ntawm 20 ℃ ~ 70 ℃, thermal expansion coefficient ntawm T30O carbon fiber yog -0.74 × 10 ^ 6 / K, thiab thermal expansion coefficient ntawm M40 carbon fiber yog -1.23 × 10 ^ 6 / K.

                Lub thermal expansion coefficient ntawm carbon fiber yog me dua li ntawm cov hlau, thiab nws muaj plaub npaug ntawm lub zog ntawm cov hlau thiab ib feem peb ntawm qhov hnyav ntawm cov hlau. Nws tau raug siv los hloov cov ntaub ntawv hlau hauv ntau qhov chaw. Ua piv txwv kev lag luam tsheb, 60% ntawm cov roj siv hauv lub tsheb yog siv los ntawm lub tsheb tus kheej qhov hnyav. Rau txhua txhua 10% poob phaus ntawm lub cev lub cev, nws cov roj noj yuav txo tau los ntawm 8% -10%, thiab nws emissions yuav txo tau los ntawm 10%. Siv cov pa roj carbon fiber ntau siv cov hlau hnyav yuav tau txais txiaj ntsig zoo txo ​​qhov hnyav, uas tseem ceeb heev rau kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig.


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