Qhov sib txawv ntawm carbon fiber thiab hlau.

Ntawm ntau cov ntaub ntawv, carbon fiber composites (CFRP) tau them ntau thiab ntau xim rau lawv cov kev muaj zog tshwj xeeb, tshwj xeeb nruj, corrosion kuj, thiab qaug zog kuj.

Cov yam ntxwv sib txawv ntawm cov pa roj carbon fiber ntau thiab cov ntaub ntawv hlau kuj muab cov engineers nrog cov tswv yim tsim sib txawv.

Cov hauv qab no yuav yog ib qho yooj yim sib piv ntawm carbon fiber composites thiab tsoos hlau yam ntxwv thiab txawv.

1. Kev nruj nruj thiab lub zog tshwj xeeb

Piv nrog rau cov ntaub ntawv hlau, cov ntaub ntawv carbon fiber muaj lub teeb yuag, muaj zog tshwj xeeb, thiab kev nruj nruj.Lub modulus ntawm resin-raws li carbon fiber ntau dua li ntawm aluminium alloy, thiab lub zog ntawm resin-based carbon fiber ntau dua li ntawm aluminium alloy.

2. Designability

Cov khoom siv hlau feem ntau yog txhua tus tib yam poj niam txiv neej, muaj qhov tshwm sim los yog qhov tshwm sim tshwm sim.Thiab cov pa roj carbon fiber ntau ib txheej muaj kev ncaj qha ncaj qha.

Cov khoom siv kho tshuab raws cov kev taw qhia fiber ntau yog 1 ~ 2 qhov kev txiav txim siab ntau dua li cov kev taw qhia ntsug fiber ntau thiab longitudinal thiab transverse shear zog, thiab cov kev ntxhov siab-strain curves yog linear elastic ua ntej tawg.

Yog li ntawd, cov khoom siv carbon fiber tuaj yeem xaiv lub kaum sab xis, qhov sib piv, thiab cov txheej txheem ntawm ib txheej los ntawm lamination phaj txoj kev xav.Raws li cov yam ntxwv ntawm kev xa khoom thauj, qhov kev ua tau zoo thiab lub zog tuaj yeem tau txais los ntawm kev tsim, thaum cov khoom siv hlau tsoos tsuas yog thickened.

Nyob rau tib lub sijhawm, qhov yuav tsum tau muaj nyob rau hauv lub dav hlau nruj thiab lub zog nrog rau qhov tshwj xeeb hauv dav hlau thiab tawm ntawm lub dav hlau sib txuas tuaj yeem ua tau.

3. Corrosion kuj

Piv nrog cov ntaub ntawv hlau, cov ntaub ntawv carbon fiber muaj zog acid thiab alkali tsis kam.Cov pa roj carbon fiber ntau yog cov qauv microcrystalline zoo ib yam li graphite siv lead ua los ntawm graphitization ntawm qhov kub ntawm 2000-3000 ° C, uas muaj kev tiv thaiv siab rau nruab nrab corrosion, txog li 50% hydrochloric acid, sulfuric acid los yog phosphoric acid, elastic modulus, lub zog, thiab txoj kab uas hla tseem nyob tsis tau hloov.

Yog li ntawd, raws li cov khoom siv txhawb zog, carbon fiber muaj txaus lav nyob rau hauv corrosion kuj, txawv matrix resin nyob rau hauv corrosion kuj yog txawv.

Zoo li cov pa roj carbon fiber ntau ntxiv epoxy, epoxy muaj huab cua zoo dua thiab tseem tuav nws lub zog zoo.

4. Anti qaug zog

Lub compression strain thiab qib siab strain yog lub ntsiab tseem ceeb cuam tshuam lub zog qaug zog ntawm carbon fiber composites.Cov khoom ua rau qaug zog feem ntau raug rau cov kev ntsuam xyuas qaug zog nyob rau hauv siab (R = 10) thiab tensile siab (r = -1), thaum cov khoom siv hlau raug rau kev ntsuam xyuas tensile qaug zog nyob rau hauv siab (R = 0.1).Piv nrog rau cov hlau qhov chaw, tshwj xeeb tshaj yog aluminium alloy qhov chaw, carbon fiber qhov chaw muaj zoo heev qaug zog zog.Nyob rau hauv lub tshav pob ntawm lub tsheb chassis thiab lwm yam, carbon fiber composites muaj zoo daim ntawv thov zoo.Nyob rau tib lub sijhawm, yuav luag tsis muaj qhov cuam tshuam hauv carbon fiber.SN nkhaus ntawm qhov ntsuas qhov ntsuas yog tib yam li qhov ntsuas tsis tau ntsuas hauv tag nrho lub neej ntawm feem ntau carbon fiber laminates.

5. Rov qab tau

Tam sim no, cov pa roj carbon fiber matrix paub tab yog ua los ntawm thermosetting resin, uas yog ib qho nyuaj rau muab rho tawm thiab siv dua tom qab kho thiab sib txuas.Yog li ntawd, qhov nyuaj ntawm cov pa roj carbon fiber rov qab yog ib qho ntawm cov fwj ntawm kev tsim kho kev lag luam, thiab tseem yog ib qho teeb meem kev lag luam uas yuav tsum tau daws sai sai rau daim ntawv thov loj.Tam sim no, feem ntau ntawm txoj kev rov ua dua tshiab hauv tsev thiab txawv teb chaws muaj cov nqi siab thiab nyuaj rau kev lag luam.Walter carbon fiber yog nquag tshawb nrhiav cov kev daws teeb meem rov ua dua tshiab, tau ua tiav ntau cov qauv ntawm kev sim ntau lawm, cov nyhuv rov qab yog qhov zoo, nrog rau cov xwm txheej ntau lawm.

Xaus

Piv nrog cov khoom siv hlau tsoos, cov ntaub ntawv carbon fiber muaj qhov tshwj xeeb zoo hauv cov khoom siv kho tshuab, lub teeb yuag, tsim qauv, thiab qaug zog ua haujlwm.Txawm li cas los xij, nws cov khoom siv tau zoo thiab kev rov qab los nyuaj tseem yog qhov tseem ceeb ntawm nws daim ntawv thov ntxiv.Nws ntseeg tau tias cov pa roj carbon fiber ntau yuav raug siv ntau dua nrog rau kev tsim kho tshiab ntawm kev siv tshuab thiab txheej txheem.