1lb ntawm carbon fiber ntau npaum li cas?
Thaum nws los txog rau cov khoom siv rau cov qauv kev ua haujlwm siab, cov pa roj carbon fiber yog qhov xaiv zoo tshaj plaws. Nws yog lub teeb yuag, muaj zog, thiab ruaj khov, ua rau nws zoo tagnrho rau ntau daim ntawv thov los ntawm aerospace mus rau cov khoom ua si. Tab sis yog tias koj xav paub txog tus nqi ntawm carbon fiber, cov lus teb tsis ncaj ncees. Hauv tsab xov xwm no, peb yuav piav qhia txog cov yam ntxwv uas cuam tshuam rau tus nqi carbon fiber.
Carbon fiber yog dab tsi?
Cov pa roj carbon fiber ntau yog cov khoom sib xyaw ua los ntawm nyias, muaj zog fibers uas yog woven ua ke thiab tuav nyob rau hauv qhov chaw los ntawm ib tug resin. Cov fibers yog tsim los ntawm cov pa roj carbon atoms uas tau sib koom ua ke hauv ib qho qauv tshwj xeeb los tsim cov khoom siv ruaj khov, hnyav heev.
Cov pa roj carbon fiber ntau lub zog-rau-qhov hnyav piv yog qhov tshwj xeeb - nws yog tsib npaug zog dua li cov hlau ntawm tib qhov hnyav thiab sib dua. Qhov kev sib xyaw ua ke ntawm lub zog thiab qhov hnyav no ua rau cov pa roj carbon fiber zoo rau kev tsim kom muaj zog, tab sis lub teeb yuag uas tuaj yeem tiv taus huab cua.
Cov khoom siv carbon fiber
Cov pa roj carbon fiber ntau los ntawm ntau hom thiab muaj ntau yam khoom. Tsis yog txhua cov pa roj carbon fibers yog tib yam, thiab ntau hom yog cov nqi sib txawv thiab. Nov yog qee cov khoom tseem ceeb ntawm carbon fiber:
- Lub zog tensile: ntsuas qhov siab tshaj plaws ntawm cov khoom siv tuaj yeem tiv taus ua ntej tawg lossis tawg. Cov pa roj carbon fiber ntau muaj lub zog tensile siab, uas txhais tau tias nws tuaj yeem nqa cov khoom hnyav yam tsis muaj kev tawg.
- Elastic modulus: ntsuas ntau npaum li cas cov khoom yuav ncab thaum muaj kev ntxhov siab thiab sai npaum li cas nws yuav rov qab mus rau nws qhov qub qub thaum qhov kev ntxhov siab tau txo qis. Cov pa roj carbon fiber ntau muaj lub siab elastic modulus, uas txhais tau hais tias nws nruj heev thiab yuav tsis deform yooj yim.
- Qhov ntom ntom: ntsuas ntau npaum li cas ib qho khoom muaj nyob rau ib chav tsev ntim. Cov pa roj carbon fiber ntau yog lub teeb heev thiab muaj qhov ntom ntom, ua rau nws zoo tagnrho rau kev siv hauv cov qauv hnyav.
- Kev qaug zog tsis kam: ntsuas seb cov khoom puas tuaj yeem tiv taus cov khoom hnyav dua lossis kev ntxhov siab. Cov pa roj carbon fiber ntau muaj kev qaug zog zoo heev, uas txhais tau hais tias nws tuaj yeem tiv taus kev ntxhov siab dua yam tsis ua tsis tiav.
- Thermal conductivity: ntsuas seb cov khoom siv hluav taws xob zoo npaum li cas. Cov pa roj carbon fiber ntau muaj cov thermal conductivity tsawg, uas txhais tau tias nws tsis hloov cua sov sai.
Cov xwm txheej cuam tshuam rau tus nqi carbon fiber
Tus nqi ntawm carbon fiber fluctuates nyob ntawm ntau yam. Nov yog qee qhov tseem ceeb:
- Tus nqi ntawm cov khoom siv raw: tus nqi ntawm cov khoom siv raw siv los tsim cov pa roj carbon fiber ntau (xws li polyacrylonitrile, lossis PAN) tuaj yeem sib txawv raws li kev lag luam xav tau thiab muaj.
- Cov txheej txheem tsim khoom: tus nqi tsim cov carbon fiber tuaj yeem cuam tshuam los ntawm kev tsim khoom siv. Muaj ntau txoj kev siv los tsim cov pa roj carbon fiber ntau, xws li cov txheej txheem PAN ib txwm siv lossis cov txheej txheem tshiab carbon nanotube (CNT). Txhua tus txheej txheem muaj cov nqi sib txawv nrog rau nws.
- Spectral zog: cov khoom spectral ntawm carbon fiber tuaj yeem cuam tshuam nws tus nqi. Piv txwv li, carbon fiber ntau dua modulus (lub ntsiab lus stiffer thiab ntau resistant rau deformation) feem ntau yuav kim dua carbon fiber nrog ib tug qis modulus.
- Daim ntawv thov: daim ntawv thov uas yuav siv cov pa roj carbon fiber ntau tuaj yeem cuam tshuam tus nqi. Cov pa roj carbon fiber ntau siv hauv aviation, aerospace, lossis cov cuab yeej ua kis las ua haujlwm siab feem ntau yuav kim dua li cov pa roj carbon fiber ntau siv hauv kev siv qis qis lossis kev ua haujlwm tsawg.
Kev txheeb xyuas tus nqi carbon fiber
Tam sim no uas peb tau them cov yam tseem ceeb uas cuam tshuam rau cov nqi carbon fiber, cia peb saib ze dua ntawm tus nqi ntawm carbon fiber. Feem ntau, carbon fiber yog muag los ntawm qhov hnyav, nrog cov qauv ntsuas ntsuas yog phaus (lbs). Nov yog qee qhov piv txwv ntawm cov nqi carbon fiber ntau raws li qhov hnyav:
- 1lb ntawm cov roj carbon fiber tsawg: $10-$15
- 1lb ntawm mid-zoo carbon fiber: $20-$30
- 1lb ntawm high-zoo carbon fiber: $30-$50
Cov nqi no tsuas yog ib qho kev qhia dav dav thiab tuaj yeem sib txawv nyob ntawm cov yam uas tau hais los saum toj no. Cov pa roj carbon fiber kuj tuaj yeem muag tau ntau dua, xws li los ntawm yob lossis los ntawm kilogram. Rolls ntawm carbon fiber tuaj yeem nyob ntawm tus nqi ntawm $ 500 txog $ 5, 000, thaum ib kilogram ntawm carbon fiber tuaj yeem nyob ntawm $ 50 txog $ 200.
Xaus
Cov pa roj carbon fiber ntau yog cov khoom tsim nyog rau ntau daim ntawv thov vim nws qhov zoo tshaj plaws lub zog-rau-qhov hnyav piv thiab ua haujlwm ntev. Txawm li cas los xij, nws tus nqi tuaj yeem sib txawv nyob ntawm ntau yam, suav nrog tus nqi raw khoom, txheej txheem tsim khoom, spectral zog, thiab daim ntawv thov. Feem ntau, qhov zoo ntawm carbon fiber ntau dua, tus nqi siab dua. Hauv luv luv, tsis muaj lus teb yooj yim rau lo lus nug, "1lb ntawm carbon fiber ntau npaum li cas?" vim nws nyob ntawm ntau yam.