Daim Ntawv Thov Thiab Kev Txhim Kho Ntawm Laser Ua Tshuab?

Laser uahais txog kev siv cov thermal nyhuv generated los ntawm lub laser beam projected nyob rau saum npoo ntawm cov khoom los ua kom tiav cov txheej txheem, xws li laser vuam, laser txiav, nto hloov kho, laser npav, laser drilling thiab micromachining. Siv cov kab teeb laser los ua ntau yam ntawm cov ntaub ntawv, xws li drilling, txiav, scribing, vuam, kho cua sov, thiab lwm yam. Laser tuaj yeem hloov kho rau kev ua thiab tsim khoom ntawm txhua yam khoom, tshwj xeeb tshaj yog nyob rau hauv kev ua thiab kev tsim khoom tshwj xeeb thiab cov ntaub ntawv tshwj xeeb. nrog tshwj xeeb precision thiab yuav tsum tau, thiab plays lub luag hauj lwm irreplaceable.

1. Lub hauv paus ntsiab lus ntawm kev ua laser

Laser ua yog irradiate lub laser beam rau saum npoo ntawm lub workpiece, thiab siv lub siab zog ntawm lub laser txiav, yaj cov khoom thiab hloov cov nto ntawm cov khoom. Txij li thaum kev ua haujlwm laser tsis yog kev sib cuag, lub cuab yeej yuav tsis ncaj qha rub tawm ntawm qhov chaw ntawm lub workpiece los ua kom muaj zog, yog li cov txheej txheem laser yog ceev heev, qhov ntau ntawm cov khoom cuam tshuam los ntawm tshav kub me me, thiab tsis muaj suab nrov. tsim tawm. Txij li thaum lub zog ntawm lub laser beam thiab txav ceev ntawm lub nqaj tuaj yeem hloov kho, kev ua laser tuaj yeem siv rau ntau qib thiab ntau yam.

2. Nta ntawm Laser Ua

Cov yam ntxwv tseem ceeb ntawm laser txiav txim siab qhov zoo ntawm laser hauv kev ua haujlwm:

①Vim tias nws tsis yog kev sib cuag, thiab lub zog ntawm lub zog loj laser beam thiab nws txoj kev txav nrawm tuaj yeem hloov kho, nws tuaj yeem ua tiav ntau hom kev ua haujlwm.

② Nws tuaj yeem ua ntau yam hlau thiab cov hlau tsis yog hlau, tshwj xeeb tshaj yog cov ntaub ntawv uas muaj hardness siab, siab brittleness thiab siab melting point.

③ Tsis muaj "cov cuab yeej" hnav thaum lub sijhawm ua haujlwm laser, thiab tsis muaj "txiav quab yuam" ua rau ntawm qhov chaw ua haujlwm.

④ Thaum lub sij hawm laser ua, lub zog ceev ntawm lub laser beam yog siab, kev ua ceev ceev, thiab nws yog nyob rau hauv lub zos ua, uas tsis muaj los yog tsawg heev cuam tshuam rau cov uas tsis yog-laser irradiation qhov chaw. Yog li ntawd, lub tshav kub cuam tshuam yog me me, thermal deformation ntawm lub workpiece yog me me, thiab cov nqi ntawm cov khoom tom ntej yog me me.

⑤ Nws tuaj yeem ua ntau yam ntawm cov khoom ua haujlwm hauv lub thawv airtight los ntawm qhov nruab nrab pob tshab.

⑥Vim tias cov nqaj laser yog ib qho yooj yim los qhia thiab sib sau ua ke kom paub txog kev hloov pauv hauv ntau cov lus qhia, nws yooj yim heev rau kev koom tes nrog cov lej tswj cov txheej txheem ua haujlwm nyuaj, yog li nws yog txoj kev ua haujlwm yooj yim heev.

⑦Siv laser ua, ntau lawm efficiency yog siab, qhov zoo yog txhim khu kev qha, thiab kev khwv nyiaj txiag zoo.

Laser Technology

Siv cov kab teeb ci laser los ua ntau yam ntawm cov ntaub ntawv, xws li drilling, txiav, scribing, vuam, kev kho cua sov, thiab lwm yam. Laser ua muaj ntau yam zoo: ①Lub laser zog ceev yog siab, thiab qhov kub ntawm lub workpiece nce sai sai tom qab absorbing lub laser. thiab melts los yog vaporizes. Txawm tias cov ntaub ntawv uas muaj melting point, siab hardness thiab brittleness (xws li ceramics, pob zeb diamond, thiab lwm yam) kuj tuaj yeem ua tiav los ntawm laser; ②Laser taub hau Tsis muaj kev sib cuag nrog lub workpiece, thiab tsis muaj teeb meem ntawm kev hnav thiab tsim kua muag ntawm cov cuab yeej ua haujlwm; ③ Lub workpiece tsis muaj kev ntxhov siab thiab tsis yooj yim rau kev ua qias tuaj; ④ Nws tuaj yeem ua cov khoom txav mus los lossis cov khoom ntim hauv lub khob iav; ⑤ Lub divergence lub kaum sab xis ntawm lub laser beam yuav muaj tsawg tshaj li 1 milliarc, thiab qhov chaw Qhov txoj kab uas hla yuav me me raws li qhov kev txiav txim ntawm microns, thiab lub sij hawm ua hauj lwm yuav luv li nanoseconds thiab picoseconds. Nyob rau tib lub sijhawm, cov khoom siv hluav taws xob tas li ntawm lub zog hluav taws xob lasers tuaj yeem ncav cuag qhov kev txiav txim ntawm kilowatts mus rau kaum kilowatts. Yog li ntawd, lub laser yog haum rau ob qho tib si precision microprocessing thiab loj-scale khoom ua; ⑥ Lub laser beam yog ib qho yooj yim los tswj, thiab nws yog ib qho yooj yim mus ua ke nrog precision machinery, precision ntsuas tshuab thiab hluav taws xob computers kom ua tau ib tug high degree ntawm automation thiab siab ua hauj lwm raug; ⑦ Nyob rau hauv ib puag ncig hnyav lossis qhov chaw uas nyuaj rau lwm tus nkag mus, muaj Robots ua haujlwm laser.

1. laser drilling

Lub qhov tuaj yeem raug laum nrog lub tshuab laser nrog lub mem tes dav ntawm {{{0}}} {{0}}} 1-1 millisecond, uas yog tshwj xeeb tshaj yog haum rau drilling micro-qhov thiab qhov tshwj xeeb-puab qhov, nrog ib txoj kab uas hla ntawm txog 0. 005-1 mm. Laser drilling tau dav siv nyob rau hauv kev ua cov pob zeb diamond bearings, pob zeb diamond hlau daim duab tuag, tshuaj fiber ntau spinnerets thiab lwm yam workpieces ntawm watches thiab seev.

2. Laser txiav, scribing thiab sau ntawv

Hauv kev lag luam xws li kev tsim nkoj thiab kev tsim tsheb, ntau pua watts rau 10, 000 watts ntawm CO2 lasers txuas ntxiv feem ntau yog siv los txiav cov khoom loj, uas tuaj yeem tsis tsuas yog xyuas kom meej cov duab nkhaus, tab sis kuj muaj kev ua haujlwm siab. Nruab nrab thiab qis zog-lub xeev lasers los yog CO2 lasers feem ntau yog siv rau txiav me me workpieces. Nyob rau hauv microelectronics, lasers feem ntau yog siv los txiav silicon wafers los yog txiav nqaim slits, nrog ceev ceev thiab me me tshav kub-tshem tawm tsam. Lub laser tuaj yeem siv los kos lossis kos cov khoom ua haujlwm ntawm cov kab sib dhos yam tsis muaj kev cuam tshuam qhov nrawm ntawm cov kab sib dhos, thiab cov cim engraved tuaj yeem khaws cia mus tas li.

3. laser txiav

Siv nruab nrab thiab qis zog lasers tshem tawm qee cov ntaub ntawv ntawm cov khoom siv hluav taws xob kom ua tiav lub hom phiaj ntawm kev hloov hluav taws xob tsis zoo (xws li tus nqi tsis kam, capacitance thiab resonance zaus, thiab lwm yam). Laser trimming muaj siab precision thiab siab ceev, thiab yog haum rau loj ntau lawm. Siv cov ntsiab lus zoo sib xws tuaj yeem kho lub npog ntsej muag ntawm cov kev sib txuas ua ke tsis zoo, kho lub cim xeeb hauv Circuit Court kom txhim kho cov txiaj ntsig, thiab tuaj yeem kho qhov sib npaug ntawm cov gyroscope kom raug.

4. Laser vuam

Laser vuam muaj lub zog siab, me me thermal deformation, thiab sealing zoo. Nws tuaj yeem vuam cov ntaub ntawv nrog ntau qhov sib txawv thiab cov khoom, nrog rau cov ntaub ntawv uas muaj cov ntsiab lus melting siab (xws li ceramics) thiab oxidation yooj yim. Lub laser-welded cardiac pacemaker muaj airtightness zoo, lub neej ntev thiab me me.

5. laser kev kho cua sov

Irradiate cov ntaub ntawv nrog laser, xaiv qhov tsim nyog wavelength thiab tswj lub sij hawm irradiation thiab lub zog ceev, kom cov nto ntawm cov khoom yuav melted thiab recrystallized kom tiav lub hom phiaj ntawm quenching los yog annealing. Qhov kom zoo dua ntawm kev kho cua sov laser yog tias qhov tob ntawm kev kho cua sov tuaj yeem tswj tau, qhov kev kho cua sov tuaj yeem raug xaiv thiab tswj tau, qhov deformation ntawm lub workpiece yog me me, qhov chaw thiab cov khoom siv nrog cov duab nyuaj tuaj yeem ua tiav, thiab cov phab ntsa sab hauv. Qhov qhov muag tsis pom thiab qhov tob tob tuaj yeem kho tau. Piv txwv li, lub neej ntawm lub tog raj kheej pistons tuaj yeem txuas ntxiv tom qab kev kho cua sov laser; silicon cov ntaub ntawv puas los ntawm ion bombardment tuaj yeem rov qab los ntawm kev kho cua sov laser.

6. Txhim kho kev kho mob

Laser saum npoo ntxiv dag zog rau kev siv tshuab yog ua raws li ob txheej txheem ntawm lub zog siab ceev cua sov ntawm laser beam thiab ceev nws tus kheej txias ntawm workpiece. Nyob rau hauv lub laser saum npoo ntxiv dag zog rau cov ntaub ntawv hlau, thaum lub zog ceev ntawm laser beam nyob rau hauv qis kawg, nws yuav siv tau rau deg theem transformation ntxiv dag zog rau cov ntaub ntawv hlau. Thaum laser Thaum lub teeb lub zog ceev nyob rau theem siab, lub teeb pom kev ntawm qhov chaw ntawm lub workpiece yog sib npaug rau qhov sib txawv txav, uas tuaj yeem ua tiav cov txheej txheem metallurgical, suav nrog deg remelting, deg carburization, nto alloying thiab nto cladding. . Cov khoom siv hloov khoom siv thev naus laus zis tshwm sim los ntawm cov haujlwm no hauv kev siv tswv yim yuav ua rau muaj txiaj ntsig zoo rau kev lag luam tsim khoom.

Daim ntawv thov tseem ceeb hauv kev hloov kho cov khoom siv yog kev kho melting. Melting kev kho mob yog hais tias cov nto ntawm cov khoom hlau ua molten nyob rau hauv lub irradiation ntawm lub laser beam, thiab nyob rau tib lub sij hawm solidifies sai heev los tsim ib tug tshiab nto txheej. Raws li kev hloov pauv ntawm cov qauv saum npoo ntawm cov khoom, nws tuaj yeem muab faib ua alloying, cladding, remelting thiab refining, glazing thiab nto compounding.

Laser melting yog ib qho kev hloov kho saum npoo av uas irradiates saum npoo ntawm cov khoom siv nrog lub laser nrog rau qhov tsim nyog rau yaj sai sai thiab condense saum npoo kom tau txais cov qauv zoo dua thiab homogeneous thiab cov khoom xav tau. Nws muaj qhov zoo hauv qab no:

1. Feem ntau, tsis muaj cov ntsiab lus hlau ntxiv thaum qhov saum npoo yog yaj, thiab cov txheej fused ua ib daim ntawv cog lus metallurgical nrog cov khoom siv matrix.

2. Nyob rau hauv cov txheej txheem ntawm laser melting, impurities thiab gases yuav raug tshem tawm, thiab cov impurities tau los ntawm ceev ceev txias thiab recrystallization muaj zog dua hardness, hnav tsis kam thiab corrosion kuj.

3. Cov txheej molten yog nyias thiab qhov chaw ua haujlwm kub yog me me, uas tsis muaj qhov cuam tshuam me me ntawm qhov roughness thiab workpiece loj. Qee zaum siv tau yam tsis muaj polishing ntxiv.

4. Ua kom cov khoom solubility txwv ntawm solute atoms nyob rau hauv lub matrix, superfine siv lead ua nplej thiab lub thib ob particles, tsim ib tug metastable theem, thiab tau ib tug siv lead ua qauv tsis diffusion los yog txawm lub xeev amorphous, thiaj li hais tias cov tshiab alloy tsim tau. tau cov txiaj ntsig ntawm cov txheej txheem ib txwm muaj. mus rau qhov kev ua tau zoo heev.

Lub teeb beam tuaj yeem coj los ntawm txoj kev kho qhov muag, kom txoj haujlwm tshwj xeeb ntawm ib feem thiab qhov chaw ntawm cov duab nyuaj tuaj yeem ua tiav.

Kev sib koom ua ke ntawm qhov zoo ntawm laser thev naus laus zis thiab qhov tsis zoo ntawm kev siv thev naus laus zis, kev siv tshuab laser rau saum npoo ntxiv dag zog rau kev kho cov khoom siv yuav yog ib txoj hauv kev tseem ceeb los txhim kho qhov hnav tsis kam thiab kev pab cuam lub neej ntawm cov cuab yeej, tshwj xeeb tshaj yog rau ceramics thiab hard alloys. Qhov zoo ntawm cov hardness siab thiab zoo tshav kub tsis kam ntawm cov cuab yeej yog qhov zoo rau kev txhim kho kev ua haujlwm thiab kev ua haujlwm raug, thiab tuaj yeem txiav cov ntaub ntawv nyuaj xws li cov hlau tsis zoo hauv kev ua haujlwm tsis zoo. Vim lawv lub zog tsis tshua muaj zog thiab tsis zoo toughness, lawv daim ntawv thov ntau yam raug txwv. Yog li ntawd, nws muaj qhov tseem ceeb ntawm kev tshawb fawb thiab dav daim ntawv thov kev cia siab rau siv laser nto zog technology rau ceramics thiab cemented carbide cov cuab yeej.

Cov ntaub ntawv tiv tauj:

Yog tias koj muaj lus nug, thov hu rau peb. Txawm peb cov neeg muas zaub nyob qhov twg thiab peb cov kev xav tau yog dab tsi, peb yuav ua raws li peb lub hom phiaj los muab peb cov neeg siv khoom zoo, tus nqi qis, thiab kev pabcuam zoo tshaj plaws.