Carbon Fiber Ua li cas?

Kuj hu ua graphite fiber los yog carbon graphite, carbon fiber yog ua los ntawm nyias strands ntawm lub caij carbon. Carbon fibers muaj lub zog tensile siab thiab muaj zog heev rau lawv qhov loj. Nws kuj yog ib qho khoom siv hnyav heev.

 

Txhua fiber ntau yog {{0}} microns hauv txoj kab uas hla. Txhawm rau muab kev nkag siab ntawm qhov me me, ib micron yog 0.0001 millimeter. Ib txoj hlua ntawm kab laug sab web silk yog nruab nrab ntawm 3 thiab 8 microns.

 

Cov yam ntxwv thiab kev siv

Cov pa roj carbon fibers yog ob zaug li tawv thiab tsib npaug zog li hlau. Lwm tus yam ntxwv yog tias lawv muaj cov tshuaj tiv thaiv zoo heev thiab muaj kev kub siab ua haujlwm siab nrog qis thermal expansion.

 

Cov pa roj carbon fibers yog cov ntaub ntawv tseem ceeb hauv engineering thaum nws los tsim lub dav hlau, tsheb ua haujlwm siab, khoom siv ncaws pob, thiab cov twj paj nruag, thiab lwm yam.

 

Yuav ua li cas carbon fiber

Carbon fiber yog tsim los ntawm cov organic polymers. Cov polymers no muaj cov hlua ntev ntawm cov molecules tuav ua ke los ntawm carbon atoms. Txog 90 feem pua ​​​​ntawm carbon fibers yog tsim los ntawm polyacrylonitrile (PAN) txheej txheem. Qhov seem 10 feem pua ​​yog tsim los ntawm rayon lossis roj av txheej txheem.

 

Gases, kua thiab lwm yam ntaub ntawv siv nyob rau hauv cov txheej txheem tsim tsim tej yam teebmeem, zoo, thiab qib ntawm carbon fiber. Cov qib siab carbon fiber ntau nrog cov khoom zoo tshaj plaws yog siv rau hauv kev thov, xws li kev lag luam aerospace.

 

Carbon fiber manufacturers txawv ntawm ib leeg nyob rau hauv cov nqe lus ntawm kev sib txuas ntawm raw cov ntaub ntawv uas lawv siv. Lawv feem ntau kho lawv cov qauv tshwj xeeb raws li kev lag luam zais cia.

 

Cov txheej txheem tsim khoom

Hauv kev tsim cov txheej txheem, cov khoom siv raw, hu ua precursors, yog kos rau hauv cov fibers ntev. Tom qab ntawd cov fibers yog woven rau hauv ntaub. Lawv tuaj yeem ua ke nrog lwm cov ntaub ntawv uas yog filament qhov txhab lossis molded rau hauv cov duab thiab qhov ntau thiab tsawg.

 

Txoj kev tsim khoom mus raws li hauv qab no:

 

Khiav. PAN tov nrog lwm cov khoom xyaw thiab spun rau hauv fibers, uas yog ntxuav thiab ncab.

Stabilizing. Kev hloov tshuaj lom neeg kom ruaj khov kev sib raug zoo.

Carbonizing. Stabilized fibers rhuab mus rau qhov kub thiab txias heev los tsim kom nruj sib koom ua ke carbon crystals.

Kho qhov chaw. Qhov saum npoo ntawm fibers yog oxidized los txhim kho cov khoom sib txuas.

Qhov loj me. Fibers yog coated thiab raug mob rau bobbins. Cov no yog tom qab ntawd thauj mus rau cov tshuab spinning uas twist cov fibers rau hauv cov xov paj sib txawv.

 

Es tsis txhob woven rau hauv fabrics, fibers yuav tsim rau hauv composites. Txhawm rau tsim cov ntaub ntawv sib xyaw, cua sov, siab, lossis lub tshuab nqus tsev tuaj yeem siv los khi cov fibers ua ke nrog cov yas polymer.

 

Tej yam uas yuav tsum tau xav txog

Kev tsim cov carbon fibers muaj ntau qhov kev sib tw, suav nrog:

 

Qhov yuav tsum tau ua kom muaj txiaj ntsig zoo dua thiab kho dua tshiab.

Cov txheej txheem kho saum npoo yuav tsum tau ua tib zoo tswj kom tsis txhob tsim cov pits uas tuaj yeem ua rau cov fibers tsis zoo.

Kev tswj xyuas kaw yuav tsum tau ua kom zoo ib yam.

Arcing thiab luv hauv cov khoom siv hluav taws xob vim muaj zog electro-conductivity ntawm carbon fibers.

Cov teeb meem kev noj qab haus huv thiab kev nyab xeeb, ntawm cov tawv nqaij khaus thiab ua pa.