Los ntawm Fiber mus rau cov khoom - Kev nkag siab tob ntawm Carbon Fiber
Paub txog carbon fiber ua ntej
Cov pa roj carbon fiber ntau yog cov khoom siv fiber ntau nrog cov ntsiab lus carbon ntau dua 95 feem pua. Nws muaj cov khoom siv zoo heev, tshuaj lom neeg, hluav taws xob thiab lwm yam khoom zoo heev. Nws yog "tus huab tais ntawm cov ntaub ntawv tshiab" thiab cov khoom siv tswv yim uas tsis muaj kev ua tub rog thiab kev loj hlob ntawm pej xeem. Lub npe hu ua "Black Gold".
Nws, hu ua noble khoom
Muaj nyiaj ntau, ib nti kub
Nws yog riam phom ntawm kev sib tw ncaws pob thiab "tus nees tsaus" hauv kev lag luam khoom siv
nws yog carbon fiber
Qhov txhua tus pom yog cov kab ntau lawm ntawm carbon fiber
kuv lub teb chaws txoj kev tshawb fawb ywj pheej thiab kev loj hlob ntawm 100-ton T1000 carbon fiber ntau lawm kab
carbon fiber ntau
Nws ua li cas?
Cov txheej txheem kev tsim cov pa roj carbon fiber ntau tau tsim los txog tam sim no thiab tau ua tiav. Nrog rau kev txhim kho txuas ntxiv ntawm cov ntaub ntawv carbon fiber ntau, nws tau nyiam los ntawm txhua qhov chaw ntawm lub neej, tshwj xeeb tshaj yog kev loj hlob ntawm aviation, tsheb, tsheb ciav hlau, cua zog hniav, thiab lwm yam thiab nws txoj haujlwm tsav tsheb, kev loj hlob ntawm kev lag luam carbon fiber ntau. . Lub zeem muag tseem dav dua.
Cov kev lag luam carbon fiber ntau tuaj yeem muab faib ua cov dej ntws thiab qis. Upstream feem ntau yog hais txog kev tsim cov khoom siv carbon fiber ntau; downstream feem ntau yog hais txog kev tsim cov khoom siv carbon fiber ntau. Cov tuam txhab nyob nruab nrab ntawm cov dej ntws thiab cov dej ntws tuaj yeem xav tias lawv yog cov chaw muab khoom siv hauv cov txheej txheem tsim cov pa roj carbon fiber ntau. Raws li pom hauv daim duab:
Nyob rau hauv lub upstream ntawm carbon fiber kev lag luam saw, tag nrho cov txheej txheem los ntawm raw cov ntaub so ntswg mus rau carbon fiber yuav tsum tau mus los ntawm oxidation rauv, carbonization rauv, graphitization rauv, nto kho, sizing thiab lwm yam txheej txheem. Fiber qauv dominated los ntawm carbon fiber.
Lub sab sauv ntawm carbon fiber kev lag luam saw belongs rau petrochemical kev lag luam, uas tsuas yog tau txais acrylonitrile los ntawm crude roj refining, tawg, ammonia oxidation thiab lwm yam txheej txheem; carbon fiber cov tuam txhab tsim polyacrylonitrile los ntawm polymerizing cov ntaub ntawv raw feem ntau yog tsim los ntawm acrylonitrile, thiab ces tig nws kom tau polyacrylonitrile. Polyacrylonitrile precursor fiber, carbon fiber yog tau los ntawm pre-oxidizing thiab carbonizing lub precursor fiber, thiab carbon fiber composite khoom yog tau los ntawm kev ua carbon fiber thiab high-zoo resin kom tau raws li daim ntawv thov.
Cov txheej txheem tsim cov pa roj carbon fiber ntau suav nrog: kos duab, kos duab, ruaj khov, carbonization, thiab graphitization. Raws li pom hauv daim duab:
Kev kos duab: Qhov no yog thawj kauj ruam hauv kev tsim cov pa roj carbon fiber ntau. Nws feem ntau cais cov ntaub ntawv raw rau hauv fibers, uas yog kev hloov ntawm lub cev. Thaum lub sijhawm txheej txheem no, kev hloov pauv huab cua thiab kub hloov pauv ntawm cov kua spinning thiab cov kua coagulation, thiab thaum kawg PAN nag lossis daus. Filaments tsim cov qauv gel.
Drafting: yuav tsum muaj qhov kub ntawm 100 mus rau 300 degrees los ua haujlwm ua ke nrog cov nyhuv stretching ntawm oriented fibers. Nws tseem yog cov kauj ruam tseem ceeb ntawm kev hloov pauv siab, kev txhawb zog siab, kev ntom ntom thiab ua kom zoo ntawm PAN fibers.
Kev ruaj ntseg: Thermoplastic PAN linear macromolecular saw hloov mus rau hauv cov qauv uas tsis yog-yas tshav kub-resistant trapezoidal qauv los ntawm cov txheej txheem ntawm cua sov thiab oxidation ntawm 400 degrees, thiaj li hais tias nws yog tsis-melting thiab tsis-flammable nyob rau hauv high kub, tswj cov fiber ntau. , thiab cov thermodynamics nyob rau hauv ib qho chaw ruaj khov.
Carbonization: Nws yog ib qho tsim nyog yuav tsum tau tsav tawm cov ntsiab lus tsis-carbon hauv PAN ntawm qhov kub ntawm 1, 000 txog 2, 000 degrees, thiab thaum kawg tsim cov carbon fibers nrog cov qauv turbostratic graphite nrog cov ntsiab lus carbon ntawm ntau tshaj 90 feem pua.
Graphitization: Nws yuav tsum muaj qhov kub ntawm 2,000 mus rau 3,000 degrees los hloov cov khoom siv amorphous thiab turbostratic carbonized rau hauv peb-seem graphite qauv, uas yog lub ntsiab kev ntsuas los txhim kho cov qauv ntawm cov pa roj carbon fiber ntau. .
Cov txheej txheem ncauj lus kom ntxaws ntawm cov pa roj carbon fiber ntau los ntawm cov txheej txheem ntawm cov khoom siv raw mus rau cov khoom tiav yog tias PAN raw cov ntaub ntawv yog tsim los ntawm cov txheej txheem yav dhau los cov ntaub lo lo ntxhuav. Tom qab kos duab ua ntej los ntawm cov cua sov ntub ntawm cov hlau feeder, nws tau hloov mus rau lub qhov cub ua ntej oxidation los ntawm lub tshuab nqus tsev. Tom qab tau ci ntawm qhov sib txawv ntawm qhov kub thiab txias hauv pawg ua ntej oxidation rauv, oxidized fibers yog tsim, uas yog, pre-oxidized fibers; cov pre-oxidized fibers yog tsim rau hauv carbon fibers tom qab dhau los ntawm nruab nrab-kub thiab high-temperature carbonization furnaces; cov pa roj carbon fibers yog tom qab ntawd raug rau qhov kawg ntawm qhov chaw kho mob, sizing, ziab thiab lwm yam txheej txheem kom tau txais cov khoom siv carbon fiber. . Tag nrho cov txheej txheem ntawm kev noj cov hlau tsis tu ncua thiab kev tswj xyuas meej, ib qho teeb meem me ntsis hauv cov txheej txheem yuav cuam tshuam rau qhov ruaj khov thiab qhov zoo ntawm cov khoom siv carbon fiber zaum kawg. Kev tsim cov pa roj carbon fiber ntau muaj cov txheej txheem ntev, ntau cov ntsiab lus tseem ceeb, thiab cov khoom lag luam siab. Nws yog kev koom ua ke ntawm ntau yam kev qhuab qhia thiab kev siv thev naus laus zis.
Cov saum toj no yog kev tsim cov carbon fiber, cia peb saib seb yuav siv cov pa roj carbon fiber ntau li cas!
Kev ua cov khoom siv carbon fiber ntau
1. Txiav
Lub prepreg yog tshem tawm los ntawm qhov txias cia ntawm qhov kub ntawm 18 degrees. Tom qab sawv, thawj kauj ruam yog txiav cov khoom kom raug raws li daim duab kos duab ntawm lub tshuab txiav tsis siv neeg.
2. Paving
Qhov thib ob kauj ruam yog nteg lub prepreg ntawm cov cuab yeej nteg, thiab nteg cov txheej sib txawv raws li tus qauv tsim. Tag nrho cov txheej txheem yog ua nyob rau hauv laser positioning.
3. Kev tsim
Los ntawm kev siv lub tshuab ua haujlwm tsis siv neeg, lub preform raug xa mus rau lub tshuab molding rau compression molding.
4. Txiav
Tom qab tsim, lub workpiece raug xa mus rau lub txiav neeg hlau workstation rau plaub theem ntawm kev txiav thiab deburring los xyuas kom meej qhov seem ntawm qhov workpiece. Cov txheej txheem no tseem tuaj yeem ua haujlwm ntawm CNC.
5. Kev ntxuav
Qhov thib tsib kauj ruam yog ua kom qhuav dej khov ntawm qhov chaw ntxuav kom tshem tawm tus neeg sawv cev tso tawm, uas yog yooj yim rau cov txheej txheem txheej txheej tom ntej.
6. Kua nplaum
Kauj ruam thib rau yog siv cov txheej txheem kua nplaum ntawm qhov chaw nres tsheb neeg hlau gluing. Gluing txoj hauj lwm, kua nplaum ceev thiab cov kua nplaum tso tawm yog txhua yam raug kho. Ib feem ntawm kev sib txuas nrog cov hlau qhov chaw yog riveted, uas yog nqa tawm ntawm qhov chaw nres tsheb riveting.
7. Kev tshuaj xyuas los ua ke
Tom qab siv cov kua nplaum, cov panels sab hauv thiab sab nrauv tau sib sau ua ke. Tom qab cov kua nplaum tau kho lawm, kev kuaj pom lub teeb xiav yog ua los xyuas kom meej qhov tseeb ntawm qhov tseem ceeb, cov ntsiab lus, kab thiab qhov chaw.
Carbon fiber ntau nyuaj rau kev ua
Cov pa roj carbon fiber muaj ob qho tib si muaj zog tensile lub zog ntawm cov ntaub ntawv carbon thiab cov soft processability ntawm fibers. Cov pa roj carbon fiber yog cov khoom siv tshiab nrog cov khoom siv kho tshuab zoo heev.
Lub zog ntawm carbon fiber CFRP yog ntau dua li cov iav fiber ntau GFRP
Siv cov pa roj carbon fiber ntau thiab peb cov hlau ua piv txwv, piv txwv li ob daim duab no, lub zog ntawm carbon fiber yog nyob ib ncig ntawm 400 txog 800 MPa, thaum lub zog ntawm cov hlau zoo tib yam yog 200 txog 500 MPa. Saib ntawm toughness, carbon fiber thiab hlau yog qhov zoo sib xws, thiab tsis muaj qhov txawv txav.
Cov pa roj carbon fiber ntau muaj zog dua thiab hnyav dua, yog li carbon fiber tuaj yeem hu ua huab tais ntawm cov ntaub ntawv tshiab. Vim tias qhov zoo dua no, thaum lub sij hawm ua cov carbon fiber reinforced composites (CFRP), cov matrix thiab fibers muaj kev sib tshuam sab hauv, ua rau lawv lub cev txawv ntawm cov hlau. Qhov ceev ntawm CFRP yog ntau me dua li cov hlau, thaum lub zog yog ntau dua li Feem ntau cov hlau. Vim yog qhov tsis sib xws ntawm CFRP, fiber ntau rub tawm lossis matrix fiber ntau detachment feem ntau tshwm sim thaum ua haujlwm; CFRP muaj cov cua kub tsis kam thiab hnav tsis kam, uas ua rau nws xav tau ntau dua ntawm cov khoom siv thaum lub sijhawm ua, yog li Kev txiav cov cua kub ntau yog tsim los ntawm cov txheej txheem tsim khoom, uas yog qhov hnyav dua rau cov khoom siv.
Nyob rau tib lub sijhawm, nrog rau kev nthuav dav ntawm nws daim ntawv thov kev lag luam, cov kev cai tau dhau los ua ntau dua, thiab cov kev cai rau kev siv cov ntaub ntawv thiab cov kev cai zoo rau CFRP tau dhau los ua nruj dua, uas tseem ua rau cov nqi ua haujlwm. nce.
Kev ua haujlwm ntawm carbon fiber board
Tom qab cov pa roj carbon fiber board tau kho thiab tsim, tom qab ua tiav xws li txiav thiab drilling yog xav tau rau cov kev xav tau tshwj xeeb lossis kev xav tau sib dhos. Raws li tib yam kev mob ntawm cov txheej txheem txiav, txiav qhov tob, thiab lwm yam, xaiv cov cuab yeej thiab xyaum ua cov khoom sib txawv, qhov ntau thiab tsawg thiab cov duab yuav muaj qhov sib txawv heev. Nyob rau tib lub sijhawm, yam xws li lub zog, kev taw qhia, lub sijhawm thiab qhov kub thiab txias ntawm cov cuab yeej thiab kev xyaum yuav cuam tshuam rau kev ua tiav.
Hauv cov txheej txheem tom qab ua tiav, sim xaiv cov cuab yeej ntse nrog cov pob zeb diamond txheej thiab cov khoom siv carbide laum me ntsis. Kev hnav tsis kam ntawm lub cuab yeej thiab lub laum me ntsis nws tus kheej txiav txim siab qhov ua tau zoo thiab kev pabcuam lub neej ntawm lub cuab yeej. Yog hais tias lub cuab yeej thiab lub laum me ntsis tsis ntse txaus los yog siv tsis raug, nws yuav tsis tsuas yog ua kom lub cev hnav thiab tsim kua muag, nce nqi ntawm cov khoom, tab sis kuj ua rau cov phaj puas, cuam tshuam rau cov duab thiab qhov loj ntawm lub phaj thiab stability ntawm qhov ntev ntawm lub qhov thiab grooves ntawm lub phaj. Ua rau txheej txheej tearing ntawm cov khoom, los yog txawm thaiv lub cev qhuav dej, ua rau lub scrapping ntawm tag nrho cov board.
Thaum drilling cov pa roj carbon fiber ntau, qhov ceev ceev, qhov ua tau zoo dua. Hauv kev xaiv cov khoom siv laum, qhov tshwj xeeb laum cov qauv tsim ntawm PCD8 lub ntsej muag ntug laum me ntsis yog tsim nyog rau cov nplooj ntawv carbon fiber ntau, uas tuaj yeem nkag mus rau cov nplooj ntawv carbon fiber ntau thiab txo qhov kev pheej hmoo ntawm delamination.
Thaum txiav cov ntawv tuab carbon fiber ntau, nws raug nquahu kom siv ob-edged compression milling cutter nrog rau sab laug thiab sab xis helical ntug tsim. Qhov no ntse txiav ntug muaj ob sab sauv thiab qis txiav helical tswv yim, uas sib npaug lub axial quab yuam ntawm lub cuab tam nce thiab nqis thaum txiav. , los xyuas kom meej tias lub resultant txiav quab yuam yog coj mus rau sab hauv ntawm cov khoom, thiaj li mus tau ruaj khov tej yam kev mob thiab suppress qhov tshwm sim ntawm cov khoom delamination. Kev tsim cov pob zeb diamond-puab cov npoo ntawm lub "Pineapple Edge" router kuj tuaj yeem txiav cov nplooj ntawv carbon fiber zoo. Nws qhov sib sib zog nqus nti flute tuaj yeem tshem tawm qhov ntau ntawm cov cua sov los ntawm kev tawm ntawm cov chips thaum lub sij hawm txiav, kom tsis txhob muaj kev puas tsuaj rau carbon fiber. daim ntawv cov khoom.
