Puas Muaj Peev Xwm Siv Laser Txiav Cov Ntawv Thermally Conductive Pyrolytic Graphite Nyias?
Pyrolytic Graphite yog dab tsi?
Pyrolytic graphite (PG):cov khoom siv carbon hluavtaws tsim los ntawm CVD. Pyrolytic graphite sheets (PGS) yog ua los ntawm carbonizing thiab graphitizing polymer zaj duab xis ntawm qhov kub siab.
Nws qhov tseem ceeb:cua sov ua haujlwm sai heev hauv kab rov tav (hauv-dav hlau) kev taw qhia - txog li 1,800 W / m · K, 2–5 zaug ntawm tooj liab - tab sis tsis tshua hla dhau qhov tuab (dhau-dav hlau) kev taw qhia, zoo li cua sov nyiam "sib tw" raws qhov chaw es tsis yog "tho" ntsug los ntawm cov khaubncaws sab nraud povtseg.
Qhov txawv ntawm Pyrolytic Graphite thiab Ordinary Graphite Sheet yog dab tsi?
| Feature | Daim Ntawv Pyrolytic Graphite (PGS) | Daim Ntawv Graphite Ib Txwm |
|---|---|---|
| Kev Tsim Khoom | Pyrolysis ntawm polymer zaj duab xis (piv txwv li, polyimide) ntawm qhov kub siab | Ua kom sov thiab nias cov hmoov graphite uas kho nrog kua qaub rau hauv cov duab zaj duab xis |
| Cov Qauv Siv Crystal | Cov txheej txheem graphene uas taw qhia zoo heev, teeb tsa tib qho kev taw qhia | Cov cheeb tsam uas tsis sib xws hauv microscopically |
| Kev Ua Haujlwm Thermal Hauv Dav Hlau | Siab heev: txog li 1,800 W/m·K | Qis dua (kev txiav txim ntawm qhov loj me me dua) |
| Anisotropy | Qhov sib txawv loj heev ntawm XY thiab Z cov lus qhia | Nruab nrab |
Hauv luv luv,Daim ntawv pyrolytic graphite (PGS) yog cov khoom siv ua haujlwm siab uas muaj kev ua tau zoo dua li cov ntawv graphite nthuav dav.
Puas Siv Tau Laser Txiav Pyrolytic Graphite Sheet?
Yog lawm, laser tuaj yeem txiav cov ntawv graphite pyrolytic - tab sis nrog cov lus ceeb toom tseem ceeb.
Kev Ua Tau
Kev txiav laser ntawm daim ntawv graphite pyrolytic yog qhov ua tau zoo thiab tau pom tseeb hauv kev tshawb fawb thiab kev teeb tsa hauv kev lag luam. Muaj cov ntawv pov thawj rau cov khoom siv txiav laser tshwj xeeb tsim rau cov graphite laminates ua tiav, lees paub qhov muaj peev xwm ua lag luam. Kev tshawb fawb tau ua tiav siv femtosecond lasers, nanosecond pulsed lasers, thiab Nd: YAG lasers rau kev ua cov pyrolytic graphite uas tsom mus rau siab.
Kev txiav zoo yog ua tau: nyob rau hauv qhov xwm txheej zoo tshaj plaws, kev txiav laser ntawv tuaj yeem tsim cov khoom nrog cov ntug zoo heev - txo qis thaj chaw cuam tshuam los ntawm cua sov (HAZ), tsis muaj txheej rov ua dua tshiab, tsis muaj qhov tawg me me, thiab tsawg kawg nkaus cov khib nyiab. Panasonic, lub tuam txhab tsim khoom PGS loj, tau hais meej meej tias lawv cov ntawv pyrolytic graphite tuaj yeem txiav rau hauv cov duab uas koj xav tau.
Cov Kev Sib Tw
Kev ua tau zoo ntawm cov cua sov(txog li 1,800 W/m·K hauv-dav hlau) tshem tawm lub zog laser, xav tau lub zog siab dua lossis cov tswv yim tshwj xeeb.
Muaj zog anisotropyxav tau kev kho kom zoo ntawm cov kev taw qhia hauv dav hlau thiab los ntawm dav hlau.
Kev pheej hmoo ntawm kev tawg ua tej daim me mevim yog cov qauv txheej txheem nyob rau hauv qhov kub ntau dhau lossis kev ntxhov siab ntawm lub cev.
Cov hmoov av carbon uas ua rau muaj hluav taws xobtej zaum yuav ua rau muaj luv luv hauv cov ntawv thov hluav taws xob.
Xaus lus
Kev txiav laser ntawm daim ntawv graphite pyrolytic yog qhov ua tau tiag tiag, tab sis nws yuav tsum tau xaiv laser kom raug (femtosecond lossis luv-pulse lasers feem ntau nyiam rau kev txo qis kev puas tsuaj thermal), cov kev teeb tsa zoo tshaj plaws (lub zog, qhov ceev, lub sijhawm pulse), huab cua tsim nyog, thiab cov txheej txheem tswj plua plav. Rau cov ntawv graphite pyrolytic nyias (12–100 μm tuab), kev txiav laser ntawv yog qhov tshwj xeeb tshaj yog vim muaj cov khoom siv tsawg kawg nkaus uas yuav tsum tau tshem tawm.
Kev Txiav Laser vs. Kev Txiav Dej Dav Hlau vs. Kev Txiav Punching
| Qhov tseem ceeb | Kev Txiav Laser | Kev Txiav Dej Dav Hlau |
|---|---|---|
| Lub tshuab | Thermal (yaj/ua pa) | Kev siv tshuab (kev sib txhuam) |
| Thaj Chaw Uas Muaj Kub Kub | Yog (tswj tau) | Tsis muaj (txiav txias) |
| Qhov Zoo ntawm Ntug ntawm PGS | Zoo heev (du, tsawg kawg nkaus HAZ) | Zoo (tej zaum yuav ntxhib los ntawm kev sib txhuam) |
| Kev Pheej Hmoo ntawm Kev Ua Kom Delamination | Qis-Nruab Nrab | Qis dua (tsis muaj kev ntxhov siab thermal) |
| Kev Ntsuas Tseeb | Siab heev | Zoo (tsawg dua rau cov yam ntxwv zoo) |
| Qhov Zoo Tshaj Plaws Tuab | Cov ntawv nyias nyias (12–100μm) | Cov ntaub ntawv tuab dua |
| Tus nqi khoom siv | Siab | Siab |
| Tus nqi khiav lag luam | Nruab nrab | Siab dua (kev siv cov khoom siv abrasive) |
| Kev tsim nyog rau PGS | Zoo heev—nyias, meej, nyuaj | Siv tau—cov khoom siv abrasive yuav ua rau cov PGS nyias nyias puas tsuaj |
| Qhov tseem ceeb | Kev Txiav Laser | Kev xuas nrig ntaus |
|---|---|---|
| Lub tshuab | Kev rho tawm thermal tsis sib cuag | Tiv tauj kev txiav tshuab |
| Thaj Chaw Uas Muaj Kub Kub | Yog (tswj tau) | Tsis muaj dab tsi |
| Qhov Zoo ntawm Ntug ntawm PGS | Zoo heev (du, tsis muaj burrs) | Qaug zog (cov kab nrib pleb, cov kab mob loj heev) |
| Kev Pheej Hmoo ntawm Kev Ua Kom Delamination | Qis-Nruab Nrab (kub) | Siab (kev ntxhov siab ntawm lub tshuab) |
| Tus nqi cuab yeej | Tsis muaj dab tsi | Siab |
| Teeb tsa/Hloov pauv | Ceev (digital) | Qeeb qeeb (hloov pauv tuag) |
| Ceev ib feem | Nruab nrab | Ceev heev (suab nrov heev) |
| Qhov Ntim Haum | Kev tsim qauv, me mus rau nruab nrab | Kev tsim khoom ntau |
| Cov Duab Sib Txawv | Zoo heev (txhua yam duab) | Txwv (yooj yim xwb) |
| Kev Hloov Pauv ntawm Cov Khoom Siv | Tsis muaj dab tsi | Lub zog tseem ceeb (mechanical force) |
| Kev tsim nyog rau PGS | Zoo heev (nyias, tawg yooj yim) | Tsis zoo (muaj kev pheej hmoo siab ntawm kev tawg) |
| Qhov tseem ceeb | Kev Txiav Laser | Kev Txiav Dej Dav Hlau | Kev xuas nrig ntaus |
|---|---|---|---|
| Kev puas tsuaj los ntawm cua sov | Yog (tswj tau) | Tsis muaj dab tsi | Tsis muaj dab tsi |
| Kev Pheej Hmoo ntawm Kev Ua Kom Delamination | Qis-Nruab Nrab | Qis | Siab |
| Kev Ntsuas Tseeb | Qhov siab tshaj plaws | Siab | Nruab nrab |
| Cov Duab Sib Txawv | Zoo heev | Zoo | Txom nyem |
| Kev Ceev Ceev | Nruab nrab | Qeeb qeeb | Ceev heev |
| Tus nqi cuab yeej | Tsis muaj dab tsi | Tsis muaj dab tsi | Siab |
| Pom zoo rau PGS | Muaj zog heev | Txwv (cov blocks tuab) | Tsis pom zoo |
Kev txiav laser:Kev ua kom raug siab tshaj plaws, zoo tshaj plaws rau cov duab nyuaj, tsis tas yuav siv nyiaj ntau, tswj tau qhov tawg ntawm cov khoom - pom zoo kom ua.
Kev txiav dej dav hlau:Tsis muaj kev puas tsuaj los ntawm cua sov, qhov kev pheej hmoo qis tshaj plaws ntawm kev tawg, tab sis qhov kev ua haujlwm raug qis dua thiab kev yooj ywm ntawm cov duab - qhov tsim nyog tsawg.
Kev Ntaus Nrig:Ceev tshaj plaws rau cov khoom ntim ntau, tab sis muaj kev pheej hmoo siab ntawm kev tawg, kev ua haujlwm raug nruab nrab, cov cuab yeej kim, cov duab yooj yim xwb - tsis pom zoo.
Kawm txog ntau hom laser rau kev ua cov khoom siv
Cov Cheeb Tsam Siv Rau Pyrolytic Graphite Sheet
Pyrolytic graphite pom cov ntawv thov thoob plaws ntau yam kev lag luam high-tech:
Cov Khoom Siv Hluav Taws Xob Rau Cov Neeg Siv Khoom
Cov ntaub qhwv cua sov thiab cov khoom faib cua sov rau cov xov tooj ntse, laptops, tablets, CPUs, GPUs, semiconductors, roj teeb muaj zog, thiab 5G/IoT. Nws tuaj yeem hloov cov roj thermal, tshem tawm "cov chaw kub," thiab txo qhov kub ntawm daim tawv nqaij.
Kev Ua Haujlwm Huab Cua thiab Kev Kho Mob
Kev tswj hwm cua sov rau cov khoom siv hluav taws xob tseem ceeb, cov sensors, thiab cov khoom siv kho mob.
Kev Sib Txuas Lus
EMI shielding thiab cua sov dissipation rau kev sib txuas lus hauv paus chaw nres tsheb.
Cov Kev Ceev Faj rau Laser Txiav Pyrolytic Graphite Sheet
1. Kev Tswj Cov Pluag Mov:Kev txiav laser tsim cov pa roj carbon me me uas ua hluav taws xob tau. Yog tias cov khoom no poob rau ntawm cov hluav taws xob, lawv tuaj yeem ua rau luv luv. Ib txwm siv cov tshuab rho tawm plua plav thiab lim dej kom zoo.
2. Kev Tiv Thaiv Kev Tawm Ntawm Cov Nplaum:Cov qauv txheej ntawm pyrolytic graphite yooj yim rau kev sib cais txheej hauv qab kev ntxhov siab thermal. Siv cov lasers luv luv lossis femtosecond kom txo qhov nkag ntawm cua sov thiab txo qhov puas tsuaj los ntawm thermal.
3. Kev Txhim Kho Cov Txheej Txheem:Daim ntawv graphite pyrolytic muaj qhov ua tau zoo heev hauv lub dav hlau (txog li 1,800 W/m·K), uas ua rau cua sov ploj mus sai. Cov yam ntxwv ntawm lub tshuab txiav laser (lub zog, qhov ceev, lub sijhawm ua haujlwm) yuav tsum tau ua tib zoo kho kom ua tiav kev txiav huv.
4. Kev Tswj Huab Cua:Kev txiav raws li qhov xwm txheej tsim nyog ua rau qhov zoo ntawm ntug zoo dua qub—txo qhov chaw uas raug cua sov, tshem tawm cov khaubncaws sab nraud povtseg, thiab tiv thaiv kom tsis txhob muaj kab nrib pleb me me.
5. Kev Txhawb Nqa Khoom Siv:Cov ntawv graphite pyrolytic nyias (nyias li 12 μm) xav tau kev txhawb nqa lossis kev txhawb nqa zoo thaum txiav kom tiv thaiv kev rhuav lossis deformation.
Kev txiav laser pyrolytic graphite tsim cov hmoov av carbon conductive, yog li xav tau lub kaw lus rho tawm hmoov av. Koj tuaj yeem tshawb xyuas ntawm no kom paub meej ntxiv.
Cov Lus Nug Feem Ntau
A:Pyrolytic graphite muaj kev ruaj khov thermal siab heev, tseem ruaj khov hauv huab cua inert txog likwv yees li 4000 K (kwv yees li 3727°C)Txawm li cas los xij, hauv huab cua, oxidation tuaj yeem tshwm sim ntawm qhov kub siab, yog li qhov kub ua haujlwm nyob ntawm qhov chaw ib puag ncig thiab huab cua.
A:Tej zaum, yog.Thaum lub sijhawm txiav laser, qhov kub siab yuav tso tawm cov organic compounds xws licov roj hydrocarbon uas muaj ntxhiab ntau (PAHs), nrog rau cov pa roj lom thiab cov pa dej. Tsis tas li ntawd, cov hmoov av graphite uas tsim tawm tuaj yeem ua rau muaj kev phom sij yog tias nqus pa. Nws raug pom zoo kom xyuas kom meejcua zoo, hnav cov ntaub npog qhov ncauj plua plav, thiab sivcov tshuab rho tawm plua plav thiab cov tshuab lim dejthaum lub sijhawm txiav laser.
A:PGS yuav tsum khaws cia rau hauv ib qho chaw uas muaj kev phom sij.kub ib txwm, qhuav, thiab tsaus ntujib puag ncig. Tsis txhob raug rau:
Dej ntsev thiab tshav ntuj ncaj qha
Cov pa roj uas ua rau xeb (hydrogen sulphide, sulfurous acid, chlorine, ammonia, thiab lwm yam)
Cov tshuaj acidic
Cov huab cua noo (cov dej noo yuav nkag mus thiab ua rau xeb sab hauv)
Khaws cov khoom no rau hauv nws lub thawv kaw thawj kom txog thaum siv.
A: Yog, tab sis yuav tsum ceev faj.Kev txiav tuag yog ib txoj kev siv ntau rau kev tsim cov PGS ntau. Txawm li cas los xij, zoo li kev xuas nrig ntaus, kev txiav tuag yog ib qho txheej txheem sib cuag thiab nqa ib qhokev pheej hmoo ntawm kev tawgCov Lus Qhia:
Siv ib qhoTxoj kev txiav tuag mos dua(piv txwv li, txiav tuag tiaj tiaj es tsis yog xuas nrig ntaus ceev ceev)
Thovkev qhwv ntugkom tiv thaiv cov hmoov av poob
Rau cov duab sib xyaw ua ke,Kev txiav laser tseem yog qhov kev xaiv zoo dua
Koj puas muaj lus nug txog laser txiav thermal conductive graphite sheets?
Lub sijhawm tshaj tawm: Lub Rau Hli-17-2026