Puas yog cov carbon fiber hnav

Cov hauv qab no yog ib qib kev daws teeb meem rau kev ntxiv cov ris tsho tiv thaiv cov roj carbon fiber, ua ke nrog kev tshawb fawb kev lag luam thiab kev tshawb fawb cov ntaub ntawv:

Kuv {. nto tshwm sim (txhim kho txheej nplaum)

1. Plasma kho

- Siv Argon / Oxygen cov roj sib xyaw (sib piv 3: 1) Rau lub sijhawm muaj dej kub tsawg, tuaj yeem nce qhov chaw kho kub tsis tau, tuaj yeem ua rau lub sijhawm kho kom zoo los ntawm 0.2μm rau} {μm

- Tom qab kho, lub zog saum npoo tau txhim kho los ntawm 30%-50}}}%, thiab cov txheej sib zog ua kom muaj zog mus txog {mpa mpa mpa

2.}}} etching txoj kev

- Siv nitric acid (concentration 68%) thiab sulfuric acid (motion 98%) hauv qhov sib piv ntawm 1: 3, soak}} txoj kev zawj ntawm groos

- Lub sijhawm yuav tsum tau nruj me ntsis tswj kev puas tsuaj, thiab qhov tob tob yog pom zoo kom tsawg dua lossis sib npaug rau 5μm

II {{{{0} ating cov khoom xaiv thiab cov txheej txheem

{{0 {}} polyurethane-based composite txheej

- thaum ntxiv 15% {{-20 nano-al₂o₃ (particle loj {}} lub sij hawm .
- Kev tsim kho cov lus: Txau siab 0.3-0.5 mpa mpa mpa} {} {degree / 1h

2. cov txheej txheem ceramic (pom zoo)
- Kev npaj ntawm siter₂-tio₂ composite txheej los ntawm sol-gel txoj kev:
- Ethyl Orthanticate: Tetrabutyl Titanate= 4}: 1 (Mev Luam Nyiaj)
- thaum txheej txheej txheej tuab yog 100-150 nm, microhardness mus txog8-10 GPA, thiab kev sib txhuam luag kom {}
- Ntshav txau c₃c₂-nicr txheej:
- Particle loj 15-45 μm, txau fais fab40-50 kw, porosity<2%
- Tus nqi hnav tsuas yog 1.2 × 10 tib / n· m nyob hauv lub nra ntawm 10n

III {. Cov txheej txheem tseem ceeb tswj cov ntsiab lus

1. Kev Tswj Kub

- Cov ntsuas cua sov hauv theem kho tau tsawg dua lossis sib npaug rau 5℃/ min kom tsis txhob tawg ntawm txheej

- Gradient annealing kev kho: 300℃rau 1h → 500℃rau 0.5h → Natural Txias

2.} tuab tswj

- Kev tshuaj xyuas lub sijhawm tiag tiag siv EDDY tam sim no cov ntsuas cua sov, nrog kev sib txawv ntawm ± 5μm

- Rau cov txheej txheej txheej, cov pom zoo nkaus xwb ib txheej tuab yog tsawg dua los yog sib npaug ntawm 30μm thiab tag nrho cov tuab yog tsawg dua li 150μm

Iv {. Cov qauv pov thawj kev ua haujlwm

1.} Hnav tsis kam kuaj

- ASTM G99 tus qauv: siv WC pob (6mm cov taub), ib lub load ntawm 10n, kev sib hloov nrawm ntawm 200RPM, thiab kev sim ntawm 30 feeb

- Qhov ntsuas muaj txiaj ntsig: ntim cov khoom lag luam tsawg dua lossis sib npaug rau 5 × 10⁻⁶ mm

2. txoj kev sib koom tes ua kom muaj zog

- Raws li ASTM D4541 rub tawm txoj kev sim, yuav tsum muaj ntau dua lossis sib npaug rau 15mpa