Kev Tshawb Fawb Txog Laser Cladding Txheej Txheem: Cov Ntsiab Cai, Kev Faib Tawm thiab Kev Xaiv Khoom Siv
Kev siv tshuab laser cladding yog ib txoj kev tsim kho nto tshiab. Nws lub hauv paus ntsiab lus yog ua tib zoo muab cov khoom siv txheej xaiv tso rau ntawm qhov chaw ntawm lub substrate hauv ntau hom ntawv sau. Thaum lub teeb laser muaj zog siab ci rau thaj chaw, tsis yog cov khoom siv txheej yaj xwb, tab sis kuj yaj ib txheej nyias nyias ntawm qhov chaw ntawm lub substrate tib lub sijhawm. Los ntawm kev khov sai, ib txheej txheej nrog tus nqi dilution qis heev tau tsim. Cov txheej no tsim cov hlau sib txuas nrog cov khoom siv substrate, uas yog qhov tseem ceeb vim nws tuaj yeem txhim kho ntau yam khoom ntawm qhov chaw ntawm lub substrate. Piv txwv li, nws tuaj yeem txhim kho kev tiv thaiv kev hnav, ua rau cov khoom siv tiv taus kev sib txhuam ntau dua; txhawb kev tiv thaiv corrosion, tiv thaiv cov khoom siv los ntawm kev tawm tsam tshuaj lom neeg; txhim kho kev tiv thaiv cua sov thiab kev tiv thaiv oxidation, ua rau cov khoom ua haujlwm hauv qhov kub thiab txias siab; thiab txawm tias hloov kho cov khoom siv hluav taws xob.
Raws li qhov xwm txheej ntawm cov khoom siv laser cladding thiab txoj kev nws txuas nrog lub teeb laser, cov thev naus laus zis laser cladding feem ntau tuaj yeem faib ua pawg. Coaxial hmoov pub laser cladding thev naus laus zis feem ntau siv lub semiconductor fiber tso zis laser thiab lub disc - hom roj - nqa hmoov feeder. Lub taub hau cladding muaj qhov tsim qauv puag ncig nrog lub teeb tso zis hauv nruab nrab thiab ob qho tib si annular hmoov pub lossis ntau - beam hmoov pub nyob ib puag ncig lub beam, nrog rau ib qho channel roj tiv thaiv tshwj xeeb. Thaum lub sijhawm txheej txheem cladding, lub teeb hmoov, lub teeb laser, thiab cov roj tiv thaiv ntws sib sau ua ke ntawm ib qho taw tes, tsim ib lub pas dej molten ntawm qhov chaw tseem ceeb. Thaum lub taub hau cladding thiab cov workpiece txav mus rau ib leeg, ib qho txheej txheem txuas ntxiv thiab zoo yog maj mam tsim rau ntawm qhov chaw workpiece. Paraxial hmoov pub laser cladding thev naus laus zis, tseem hu ua lateral hmoov pub laser cladding thev naus laus zis, muaj nws tus kheej cov yam ntxwv tshwj xeeb hauv cov hmoov - pub thiab beam - coupling mechanisms. High - speed laser cladding thev naus laus zis, qee zaum hu ua ultra - high - speed laser cladding thev naus laus zis, tsom mus rau kev ua tiav cov nqi tso tawm sai dua thaum tswj hwm qhov zoo ntawm cov txheej txheem. High - speed wire laser cladding thev naus laus zis siv cov khoom siv hlau - zoo li, nthuav qhia txoj hauv kev sib txawv piv rau cov hmoov - raws li cov txheej txheem cladding. Txhua txoj kev faib tawm no muaj nws cov xwm txheej thov thiab qhov zoo, ua rau laser cladding yog ib qho thev naus laus zis ntau yam thiab hloov tau yooj yim hauv ntau qhov chaw lag luam.
