High-Ceev Laser Cladding: Ua thiab Nrhiav Kom Tau Cov Qauv
Kev ceev ceev laser cladding yog kev kho cov thev naus laus zis ceev ceev. Nws cov kev ntsuas tsis tau muab faib ua ob pawg:Ua tsis(Cov chaw teeb tsa thaum Cladding) thiabNrhiav kom tau cov lus tsis sib xws(Kev Tshuaj Xyuas Zoo Zoo Tom Qab Cladding).
I. Kev tawm tsam rau cov khoom siv
Cov no suav nrog yim qhov tsis ncaj ncees hloov kho thaum lub cladacing txheej txheem:
LASER Fais: Lub zog tso zis tso rau ib lub sijhawm los ntawm lub laser (chav ntsuas: w lossis j \/ s).
Hnov cov duab: Cov duab uas nquag muaj yog cov voj voog thiab duab dhos, xaiv raws li cov yam ntxwv ua haujlwm.
Qhov loj me: Cuam tshuam lub zog ntom ntom (lub zog rau ib qho chaw nyob). Cov me me nce hluav taws xob ntom ntom, ua rau lawv haum rau cov hmoov melting siab rau hauv tib lub zog.
Ua Ntev: Qhov kev ncua deb ntawm lub laser nozzle thiab lub substrate nto.
- Dhau li deb: Cov hmoov tsis zoo ua kom pom tseeb thiab siv tau tsawg.
- Kev kaw heev: qhov kub ntau dhau ntawm lub nozzle, pheej hmoo hnav hmoov clogging.
Tus nqi sib tshooj: Qhov tseem ceeb rau kev siv lub ntsej muag saum npoo. Ntau dua qhov sib tshooj txo qis txo cov kev sib tw tab sis ua tiav cov kev sib dhos.
- Kev kub ceev cov cladding feem ntau siv 70% -80% sib tshooj (thiab 30% -50 -50 hauv cov cladceion).
Cladding Ceev: Qhia raws li kev nrawm nrawm lossis thaj chaw.
Hmoov noj txoj kev: Feem ntau yog ib txwm pub mis nyob rau hauv high-ceev cladding.
Kev thaiv cov roj siab: Kho tau thaum ua tiav. Cov roj av (n₂ lossis ar) tiv thaiv lub taub hau melt thiab txo cov oxidation.
Cov Cheebtsam ntawm Laser Cladding System
Cov Cheebtsam ntawm Laser Cladding Khoom.
Ii. Nrhiav kom tau cov lus tsis sib xws
Cov ntsuas qhov zoo ntawm cov clad txheej ncej-txheej txheem:
Porositystrong>: Muaj kev kub siab rau cov neeg ceev. Cuam tshuam los ntawm hmoov ntsuas kub, nrawm, thiab lub. Slower Hmoov Slowle Zog Tsuav nce Porosity.
Kev nyuajstrong>: Txhim kho los ntawm kev ua kom txias sai, cov tshuab ua kom zoo dua qub, thiab lotice distorting thaum cladding. Clad txheej ua yeeb yam ua kom muaj zog ntau dua li cov khoom siv hauv paus.
Bond lub zogstrong>: Cov ntawv sib txawv metallurgical ntawm Atomic diffusion ntawm cov txheej txheem clad thiab substrate nyob rau hauv high kub thiab hmoov velocity. Bond lub zog tuaj yeem ncav cuag 360 MPA.
Dilution tus nqistrong>: Feem pua ntawm cov khoom siv hauv paus diluted rau hauv cov txheej clad. Tswj los ntawm hmoov Flow tus nqi, laser fais fab ntom, thiab cladding ceev.
Thermal rog tsis kam: Nyob ntawm thermal expansion tsis sib xws ntawm cov clad txheej thiab substrate, nrog rau raws li cov nyiaj pheeb suab. Kev tsis kam ua tsis zoo ua rau tawg.
Nto roughness: Cuam tshuam los ntawm laser hluav taws xob ntom ntom, hmoov pub tus nqi, thiab roj siab. Optimal parameter muaj ranges ua kom muaj cov chaw du.
Tag: Ua tau zoo Laser Cladding yuav tsum tau kho kom haum ntawm kev ntsuas tsis xav tau (piv txwv li porosity xav tau, siab tawv lub zog). Ua raws li cov khoom siv ua kom muaj zog ua haujlwm.