1.Qhov kev coj ua zoo tshaj plaws rau kev xaiv cov khoom hauv Laser Cladding
Kev xaiv cov khoom siv yog lub hauv paus ntawm kev ua tiavLaser Claddingtxheej txheem, raws li kev sib xyaw ua ke ntawm cov khoom siv hauv paus thiab cov khoom siv cladding ncaj qha txiav txim siab qhov zoo, durability, thiab kev ua tau zoo ntawm txheej txheej cladded kawg. Cov kev coj ua zoo tshaj plaws rau kev xaiv cov khoom siv hauv laser cladding pib nrog kev sib piv cov khoom siv cladding rau cov khoom siv tshuaj lom neeg muaj pes tsawg leeg thiab cov khoom siv tshuab-piv txwv li, siv npib tsib xee-raws li alloys rau siab- daim ntaub ntawv kub lossis cobalt-raws li alloys rau superior hnav tsis kam. Nws tseem yog ib qho tseem ceeb los xav txog cov khoom siv cladding qhov loj me thiab purity: zoo, cov khoom sib xws (feem ntau 50-}150 μm) kom zoo dua melting sib xws thiab adhesion, thaum cov khoom tsis huv tuaj yeem ua rau porosity, tawg, lossis cov txheej tsis sib xws. Tsis tas li ntawd, qhov tseem ceeb ntawm daim ntawv thov yuav tsum tau: yog tias cov khoom yuav raug corrosion, xaiv corrosion-cov ntaub ntawv tiv thaiv cladding zoo li stainless hlau; rau hnyav- thauj cov khoom lag luam, ua qhov tseem ceeb ntawm cov khoom siv nrog siab hardness thiab toughness. Los ntawm kev xaiv cov khoom siv nrog ob qho tib si hauv paus thiab qhov kawg- siv qhov xwm txheej, koj tuaj yeem tso lub hauv paus rau kev ua haujlwm siab - zoo, ntev ntev laser cladding tau.
2.Yuav tswj cov cua kub input rau Flawless Laser Cladding txheej
Kev tswj cov cua sov yog ib qho tseem ceeb tshaj plaws hauv kev ua tiav qhov tsis muaj qhov tsis zoo Laser Claddingcov khaubncaws sab nraud povtseg, vim tias kub dhau los lossis tsis txaus tuaj yeem ua rau muaj ntau yam tsis xws luag, suav nrog cov kab nrib pleb, deformation, thiab kev sib txuas tsis zoo ntawm cov txheej cladding thiab cov khoom siv hauv paus. Txhawm rau tswj cov khoom siv hluav taws xob kom zoo, pib los ntawm kev ua kom zoo dua peb cov txheej txheem tseem ceeb: laser zog, scanning ceev, thiab hmoov pub tus nqi. Lub zog laser qis dua lossis siab dua scanning ceev txo cov cua sov nkag, uas yog qhov zoo tagnrho rau cov txheej txheej nyias nyias lossis cov cua sov- cov ntaub ntawv hauv qab rhiab heev (xws li siab - cov pa roj carbon steel) uas ua rau tawg. Conversely, laser zog dua los yog qeeb scanning ceev tsub kom cov cua sov input, haum rau thicker cladding txheej los yog cov ntaub ntawv uas yuav tsum tau sib sib zog nqus fusion. Nws tseem yog ib qho tseem ceeb uas yuav tau siv cov txheej txheem preheating rau siab -cov ntaub ntawv hardness puag-preheating rau 150-300℃tuaj yeem txo cov thermal stress thiab tiv thaiv kev tawg. Saib xyuas lub pas dej kub hauv lub sijhawm tiag tiag (ntawm thermal imaging lossis pyrometers) thiab kho qhov tsis muaj zog yuav ua kom muaj cua sov zoo ib yam, ua rau cov khaubncaws sab nraud povtseg du, tsis muaj qhov tsis zoo.
3.Troubleshooting Common Laser Cladding Defects
Txawm tias muaj kev xaiv cov khoom siv ceev faj thiab kev tswj cov cua sov, feem ntauLaser Cladding Cov teeb meem tseem tuaj yeem tshwm sim, yog li kev paub yuav ua li cas daws cov teeb meem no yog qhov tseem ceeb rau kev txhim kho cov txheej txheem thiab tswj kom zoo. Porosity, yog ib qho tsis xws luag feem ntau, feem ntau tshwm sim los ntawm noo noo nyob rau hauv cov hmoov cladding, tsis txaus roj shielding, los yog tsis tiav melting. Txhawm rau daws qhov no, ziab cov hmoov cladding ntawm 120-150℃rau 2-4 teev ua ntej siv, xyuas kom cov roj tiv thaiv (feem ntau argon los yog nitrogen) txaus txaus (5-10 L / min), thiab kho cov teeb meem laser kom ntseeg tau tias cov hmoov qhuav tag nrho. Cov kab nrib pleb, lwm qhov kev txhawj xeeb loj, feem ntau tshwm sim los ntawm kev ntxhov siab ntau dhau, cov khoom siv tsis sib haum, lossis tsis txaus preheating-kev daws teeb meem suav nrog kev ua kom cov cua sov ua kom zoo, xaiv cov ntaub ntawv cladding sib xws, thiab siv kev kho cua sov tom qab cladding (xws li tempering) kom txo tau kev ntxhov siab. Lwm yam tsis xws luag, xws li tsis sib xws cladding thickness los yog adhesion tsis zoo, tuaj yeem hais los ntawm calibrating cov hmoov pub tus nqi, kho lub laser tsom, los yog kev txhim kho qhov chaw ntawm lub hauv paus khoom (xws li, tshem tawm xeb, roj, los yog oxide txheej).
4.Precision Calibration rau qhov sib xwsLaser CladdingKev ua tau zoo
Precision calibration ntawm cov cuab yeej laser cladding yog qhov tseem ceeb rau kev ua tau zoo ib yam thiab rov ua tau siab - cov txiaj ntsig zoo, tshwj xeeb tshaj yog rau cov khoom loj - teev ntau lossis siab - cov khoom muaj tseeb. Precision calibration suav nrog kev kho thiab txheeb xyuas cov khoom siv tseem ceeb tsis tu ncua, pib nrog lub laser tsom: kev ua kom pom tseeb tsis zoo tuaj yeem ua rau lub zog tsis sib luag, ua rau tsis sib haum xeeb cladding txheej tuab thiab kev sib txuas tsis zoo. Calibrate lub laser tsom qhov deb (feem ntau yog 10-20 mm los ntawm qhov chaw ua haujlwm) ua ntej txhua qhov kev tsim khoom khiav thiab kuaj xyuas qhov drift thaum lub sijhawm ua haujlwm ntev -. Tom ntej no, calibrate cov hmoov pub system kom ntseeg tau tias cov hmoov xa tuaj zoo ib yam - cov hmoov noj tsis tu ncua ua rau muaj qhov sib txawv ntawm cov txheej txheej cladding thiab thickness. Tsis tas li ntawd, txheeb xyuas qhov tseeb ntawm txoj kev scanning ntawm cov neeg hlau lossis gantry system, vim tias qhov sib txawv ntawm txoj kev scanning tuaj yeem ua rau muaj kev cuam tshuam sib tshooj lossis tsis sib xws. Kev calibration tsis tu ncua (zoo tagnrho txhua lub limtiam rau cov khoom ntim siab) tsis tsuas yog ua kom zoo ib yam cladding zoo tab sis kuj tseem txuas ntxiv lub neej ntawm cov khoom siv thiab txo qis qis vim qhov tsis xws luag.
