Daim Ntawv Thov Ntawm Laser Vuam Ntawm Cov Roj Teeb

Vim li cas tib neeg tuaj yeem pom cov khoom, tsuas yog tib neeg muaj qhov muag, tab sis kuj vim tias muaj lub teeb pom kev los ntawm lub ntiaj teb sab nraud, peb tuaj yeem' t pom yam nyob hauv chav tsaus nti.Peb peb paub vim li cas cov laser tuaj yeem nkag rau hauv cov phaj steel, lub teeb ntuj tsis tuaj yeem nkag mus rau hauv lub phaj steel tom qab tau mloog zoo, vim tias lub teeb ntuj tsim muaj ntau yam sib txawv ntawm lub teeb, txawm tias tom qab tsom, lub teeb tsis nyob tib qho chaw, yog li qhov ntsuas kub tsis ncav lub phaj steel. Qhov ntsuas kub yuav tsum tau yaj.Qhov laser yog qhov ntsuas hluav taws xob ib zaug, thiab lub teeb nyob rau tib qho tom qab tsom, yog li qhov ntsuas kub tuaj yeem ncav cuag siab heev.

Nws tshwm sim kom muaj lub zog tib yam li hluav taws xob hloov los ntawm qhov kev txiav txim siab mus rau txoj kev xaj qis. Tom qab ntawd, nyob rau hauv kev zam ntawm cov duab yees no, lub tshuab hluav taws xob yuav hloov los ntawm qhov kev txiav txim siab mus rau qhov qis-txiav txim thiab tso tawm photon nrog qhov kev taw qhia tib yam thiab ntau zaus, kom ib photon dhau los ua ob photon. Nws txhais tau hais tias lub photon nthuav dav lossis ntxiv dag zog.Yuav kom tau txais cov khoom siv hluav taws xob ntau dua (lossis hu ua particle inversion), peb yuav tsum siv qee txoj kev los ua kom zoo siab qhov atoms kom cov hluav taws xob hloov mus rau qhov kev txiav txim siab thiab tau txais ntau dua- hais kom electrons. Feem ntau, kev tso tawm roj tuaj yeem siv los siv hluav taws xob nrog kev ua lub zog ntawm lub zog mus ua kom qhov nruab nrab nruab nrab atoms, uas yog hu ua hluav taws xob excitation; pulsed teeb pom kev zoo tuaj yeem siv los ua kom pom kev ua hauj lwm nruab nrab, uas yog hu ua optical excitation; muaj cov thermal excitation, tshuaj lom zem, thiab lwm yam zoo li.Huab qhov kev txhawb siab siab yog visually hu ua nqus lossis nqus.

Daim duab hauv qab no qhia txog kev siv ntau zaus uas siv ntau duaYAG lasers, feem ntau nyob rau thaj tsam li 0.15 txog 1.046, uas muaj ntau zaus ntau tau pom.

Daim duab hauv qab no yog daim duab schematic feem ntawm pulsed YAG laser vuam: Tom qab thelaser tsim cov duab hluav taws xob, lawv tau tsom mus rau ntawm daim iav rau lub lens kom sau lub teeb ci. Cov tshuab sau ua ke yog kis los ntawm cov kab hluav taws xob thiab mus txog rau lwm qhov kawg ntawm qhov kho qhov muag fiber. Tom qab tawm dhau los, lawv tau tsom los ntawm lub taub hau tsom, thiab cov nyhuv kawg yog Nyob rau qhov chaw ua haujlwm.Hloov lasers tsis tuaj yeem kis tau los ntawm cov xov hluav taws xob.

Lub roj teeb hluav taws xob yuav tsum siv cov txheej txheem sib xyaw, lawv yuav cuam tshuam rau tus nqi, qhov zoo, kev nyab xeeb thiab kev ua haujlwm ntawm lub roj teeb.Peb siv cov coj zoo heev thiab lub zog siab ntawm cov laser ua haujlwm. Lub kaw lus khoos phis tawm ua kom pom qhov ci hauv thaj chaw me me, thiab cov hlau txuas ntawm cov haujlwm tseem ua rau siab hauv lub sijhawm luv luv.

Tshav kub kub cheeb tsam, yog li txoj kev khov kho cov pob qij txha txuas thiab weld leeg.

Nov yog qee hom laser vuam:

Thaum tshav kub kub conduction vuam thiab sib sib zog nqus vuam: Thaum tshav kub kub conduction vuam yog siv rau cov ntaub ntawv me me.Qhov laser beam melts saum npoo ntawm kev sib koom tes ua haujlwm raws qhov sib koom ua ke, thiab cov khoom siv molten ntws ua ke thiab solidifies tsim weld.Nws feem ntau siv nyob rau hauv pulsed los yog nruam yoj khoom-lub xeev lasers.In kub conduction vuam, lub zog yog tsuas yog txuas rau qhov chaw ua haujlwm los ntawm kev ua kom sov, yog li lub vuam qhov tob tsuas yog ob peb feem kaum ntawm ib millimeter rau 1 millimeter. Qhov siab tshaj plaws vuam qhov tob ntawm ib qho khoom siv yog txwv los ntawm nws cov thermal conductivity, thiab qhov dav ntawm weld yog ib txwm ntau dua li qhov vuam tob.

Thaum lub tshuab fais fab laser muaj zog nyob rau saum npoo ntawm cov hlau, cov cua sov dhau kom yaj tau, thiab nws yuav tsim lub zog ua kua hlau. Lub sijhawm no, lub vuam qhov tob yuav raug ntseeg kom tob. Lub tshuab ua viav vias no yog kev sib sib zog nqus kev nqus hlau.Thaum cov laser nqaj txav mus raws tus hlau nruas, lub qhov me me hauv qhov chaw ua haujlwm kuj tseem yuav txav mus.Thaum tib lub sijhawm, lub hmoov yaj kuj txav mus ncig ntawm lub qhov me me thiab solidified tam sim, tsim qhov sib sib zog nqus thiab nqaim weld. nrog cov txheej txheem sab hauv.Qhov qhov tob ntawm lub weld tuaj yeem ncav cuag kaum npaug ntawm qhov dav, ze rau 25 mm.Because sib sib zog nqus nqus vuam tshuab muaj kev ua nrawm nrawm heev, thaj tsam kub me me, thiab txo qis kev cuam tshuam, lub tshuab no tuaj yeem siv rau hauv cov ntawv thov uas yuav tsum muaj qhov sib sib zog nqus vuam lossis ntau txheej txheej vuam ua ke.