Silicon nitride (Si₃N₄) yog ib qho ntawm cov qib siab tshaj plaws engineering ceramics muaj hnub no. Ua tsaug rau nws lub zog siab, zoo heev hnav tsis kam, thermal shock resistance, thiab tshuaj stability, nws yog dav siv nyob rau hauv semiconductor ntim, hwj chim electronics, ceramic bearings, aerospace Cheebtsam, automotive qhov chaw, thiab precision industrial khoom.
Txawm li cas los xij, cov khoom tseem ceeb no kuj ua rau Si₃N₄ yog ib qho nyuaj tshaj plaws ceramics los ntawm laser. Cov neeg tsim khoom feem ntau ntsib cov teeb meem xws li ntug chipping, micro- tawg, txiav tsis zoo, thiab ncua kev tawg tom qab machining. Piv nrog alumina (Al₂O₃), aluminium nitride (AlN), thiab silicon carbide (SiC), silicon nitride yuav tsum nruj dua tswj ntawm laser zog thiab kev ua haujlwm.
Kab lus no piav qhia tias vim li cas Si₃N₄ thiaj li nyuaj rau kev txiav laser thiab dab tsi yuav tsum tau txiav txim siab ua ntej xaiv ib qhoSilicon Nitride Laser Tej Tshuab.
1. Hardness siab heev ua rau kom tawg rhiab heev
Silicon nitride muaj ib qho Vickers hardness ntawm 1500-1800 HV, ua rau nws yog ib qho nyuaj tshaj plaws cov txheej txheem ceramics.
Tsis zoo li cov hlau, Si₃N₄ yuav luag tsis muaj peev xwm deformation yas. Thaum lub sij hawm laser txiav, lub hauv paus thermal expansion tsis tuaj yeem tso tawm los ntawm cov khoom deformation, ua rau muaj kev ntxhov siab nyob ze ntawm qhov txiav.
Yog li ntawd, kev siv thermal ntau dhau tuaj yeem ua rau:
››› Ntug chipping
››› Cov pob txha tawg
›››Ntoo micro- tawg
››› Crack propagation
Rau precision Cheebtsam, tswj ruaj khov laser zog yog qhov tseem ceeb tshaj qhov tsuas yog nce txiav ceev.
2. Kev tswj xyuas qhov kub thiab txias hauv cheeb tsam yog qhov nyuaj
Laser txiav ua kom muaj cua sov siab heev hauv thaj chaw me me.
Piv nrog txhuas nitride, uas sai sai hloov tshav kub kom deb ntawm qhov chaw txiav, silicon nitride khaws ntau thermal zog nyob ib ncig ntawm txoj kev laser. Qhov tshwm sim qhov kub thiab txias gradient ua rau muaj kev ntxhov siab nyob hauv cov khoom.
Tej yam tsis xws luag muaj xws li:
››› Ntug cracking
››› zais sab hauv tawg
››› Cov cua sov loj dua- thaj chaw cuam tshuam (HAZ)
››› Txo cov neeg kho tshuab kev ntseeg siab
Vim li no, kev tswj xyuas thermal yog ib qho kev sib tw loj tshaj hauv Si₃N₄ laser ua.
3. Infrared Lasers muaj kev ua haujlwm qis dua
Silicon nitride absorbs 355 nm UV lasers ntau npaum li cov pa 1064 nm infrared fiber ntau lasers.
Nrog infrared lasers, ntau lub zog yog reflected es tsis txhob raug absorbed los ntawm cov khoom. Cov neeg ua haujlwm feem ntau them nyiaj los ntawm kev ua kom lub zog laser los yog txo cov kev txiav ceev, uas kuj ua rau kom muaj cua sov ntau ntxiv.
Qhov no yuav ua rau:
››› Wider kerf widths
››› Ntau thermal puas
››› qis qhov sib xws
››› Muaj kev pheej hmoo ntawm micro- tawg
Rau siab - daim ntawv thov precision, UV laser ua feem ntau muab kev ruaj ntseg zoo dua thiab ntug zoo.
4. Oxidation tuaj yeem txo cov ntug zoo
Laser processing generates tsis tshua muaj siab kub hauv zos.
Yog tsis muaj shielding gas, silicon nitride yuav oxidize thaum txiav, cuam tshuam:
››› Ntug tsos
››› Nto huv
››› Mechanical zog
››› rwb thaiv tsev hluav taws xob rau cov khoom siv hluav taws xob
High-purity nitrogen yog li ntawd feem ntau siv thaum lub sij hawm precision laser txiav los suppress oxidation thiab txhim kho nto zoo.
5. Kev ntxhov siab seem yuav ua rau qeeb qeeb
Ib tug yam ntxwv uas ua rau silicon nitride tshwj xeeb nyuaj yog ncua kev tawg.
Ib feem yuav tshwm sim tsis xws luag-dawb tam sim ntawd tom qab txiav, tab sis microscopic residual stresses tseem nyob hauv cov khoom. Thaum lub sij hawm cia los yog thermal cycling, cov kev ntxhov siab no yuav maj mam nce mus rau hauv cov kab nrib pleb pom los yog hnub tom qab.
Rau cov khoom siv hluav taws xob semiconductor thiab siab -kev ntseeg siab ntawm cov khoom siv ceramic, txo qis kev ntxhov siab tsuas yog ib qho tseem ceeb xws li kev ua tiav cov npoo huv.
Sib piv nrog lwm yam Engineering Ceramics
| Khoom siv | Kev ua haujlwm nyuaj | Kev sib tw thawj zaug |
| Alumina (Al₂O₃) | Tsawg-Medium | Nruab nrab thermal puas |
| Aluminium Nitride (AlN) | Nruab nrab | High thermal conductivity thiab oxidation tswj |
| Silicon Carbide (SiC) | Nruab nrab-siab | Siab hardness |
| Silicon Nitride (Si₃N₄) | Siab heev | Thermal stress, tawg rhiab heev, residual stress |
Piv nrog rau lwm cov ceramics siab heev, silicon nitride feem ntau xav tau cov kev tswj xyuas meej tshaj plaws ntawm cov khoom siv laser kom ua tiav cov khoom ruaj khov.
Vim li cas cov txheej txheem tswj teeb meem ntau dua li laser zog
Ntau tus neeg yuav khoom tsom feem ntau ntawm lub zog laser thaum xaiv cov khoom siv. Hauv kev muaj tiag, kev ua tiav Si₃N₄ yog nyob ntawm ntau yam ntawm kev tswj tag nrho.
Cov yam tseem ceeb muaj xws li:
››› Tsim nyog laser wavelength
››› Pulse zog stability
›››Multi-dhau kev txiav tawm
››› Motion platform raug
››› shielding gas tiv thaiv
››› Thermal tswj
Lub qhov dej - optimizedYCLASER Silicon Nitride Laser Tej Tshuabtau feem ntau achieve ntau dua tawm los thiab zoo ntug zoo dua ib tug siab dua - fais fab system nrog cov txheej txheem tsis zoo.
Tej kev siv
High -zoo laser txiav yog dav xav tau rau:
››› Semiconductor ceramic substrates
›››Power module substrates
››› Ceramic bearings
››› Mechanical seal rings
››› Aerospace structural ceramics
››› Precision industrial Cheebtsam
››› Automotive ceramic qhov chaw
Cov ntawv thov no feem ntau muab qhov tseem ceeb rau kev tawg - ua haujlwm pub dawb, qhov tseeb qhov tseeb, thiab lub sijhawm ntev - kev ntseeg siab tshaj qhov siab tshaj plaws txiav ceev.
Xaus
Ua tiav qhov ruaj khov, siab - zoo txiav yog li ntawd yuav tsum tau ntau dua li xaiv lub siab - lub zog laser. Kev vam meej nyob ntawm kev xaiv qhov tsim nyog laser wavelength, optimizing cov txheej txheem tsis, txo thermal input, thiab tswj cov lus tsa suab tau zoo thoob plaws hauv kev tsim khoom.
Nyob rau hauv peb tsab xov xwm tom ntej no, Yuav Ua Li Cas Laser Txiav Silicon Nitride (Si₃N₄): Khoom siv, txheej txheem thiab kev yuav khoom, peb yuav tham txog qhov zoo tshaj plaws laser qhov chaw, pom zoo tshuab configurations, txiav cov tswv yim, thiab cov tswv yim kev yuav khoom xav txog kev siv Si₃N₄ sib txawv.
Nrhiav kev cob qha Silicon Nitride Laser Tej Tshuab?
YCLaserspecializes nyob rau hauv precision laser kev daws teeb meem rau advanced ceramics, xws li Si₃N₄, AlN, Al₂O₃, SiC, zirconia, wafers, DBC, thiab DPC substrates.
Peb Silicon Nitride Laser Tej Tshuab txhawb cov khoom tuab txog li 11 hli thiab muaj nyob rau hauv kev tsim kho rau semiconductor substrates, hluav taws xob hluav taws xob, thiab cov khoom siv ceramic.
Tiv tauj peb hnub norau cov qauv kuaj dawb thiab kev soj ntsuam cov txheej txheem los nrhiav cov kev daws teeb meem laser rau koj daim ntawv thov.
