Cov Yam Ntxim Saib ntawm Laser Cladding Technology
Kev siv tshuab laser cladding, ib txoj kev hloov kho qhov chaw siab heev, tuaj yeem faib ua ob hom tseem ceeb raws li cov txheej txheem pub hmoov: txoj kev presetting hmoov thiab txoj kev pub hmoov synchronous. Txawm hais tias muaj cov txiaj ntsig zoo sib xws, txoj kev pub hmoov synchronous sawv tawm nrog ntau qhov zoo tseem ceeb. Nws ua rau muaj kev tswj hwm tsis muaj kev sib txuas, uas yog qhov tseem ceeb rau kev tsim khoom lag luam loj. Txoj kev no kuj muaj qhov nqus tau zoo ntawm lub zog laser, ua kom zoo dua kev siv cov peev txheej laser. Ntxiv mus, cov khoom tsim los ntawm txoj hauv kev no tsis muaj qhov hws sab hauv, ua kom lawv cov qauv ruaj khov. Thaum cuam tshuam nrog cov hlau ceramic cladding, txoj kev pub hmoov synchronous ci ntsa iab tiag tiag. Nws txhim kho qhov tsis kam ntawm cov txheej cladding thiab lav tias cov theem ceramic tawv tau faib thoob plaws, txhim kho kev ua tau zoo ntawm qhov chaw coated.
Laser cladding yog txhais los ntawm ib pawg ntawm cov yam ntxwv sib txawv. Ua ntej, nws muaj qhov txias sai heev, ncav cuag txog li 10⁶ K / s. Cov txheej txheem khov sai no ua rau muaj kev tsim cov qauv me me. Nws kuj qhib lub qhov rooj rau kev tsim cov theem tshiab uas tsis tuaj yeem ua tiav hauv qab qhov xwm txheej sib npaug, xws li cov theem metastable thiab cov qauv amorphous. Cov yam ntxwv microstructural tshwj xeeb no muab cov ntaub ntawv cladded nrog cov khoom siv kho tshuab thiab lub cev zoo dua.
Qhov thib ob, qhov kev sib xyaw ua ke ntawm cov xim hauv laser cladding feem ntau tsawg dua 5%. Qhov no ua rau muaj kev sib txuas ntawm cov hlau lossis kev sib txuas ntawm cov khoom sib txuas nrog lub substrate. Los ntawm kev kho kom raug cov txheej txheem laser xws li lub zog, kev ceev scanning, thiab tus nqi pub hmoov, cov txheej txheem zoo nrog tus nqi dilution qis tuaj yeem ua tiav. Qhov kev tswj hwm no ntawm cov khoom sib xyaw thiab qib dilution tso cai rau kev hloov kho kom ua tau raws li cov kev xav tau ntawm daim ntawv thov tshwj xeeb.
Qhov thib peb, laser cladding siv tsawg kawg nkaus cua sov nkag, uas ua rau muaj kev cuam tshuam me ntsis. Thaum siv high-power - density rapid cladding, qhov deformation tuaj yeem txo qis mus rau qhov uas nws poob rau hauv qhov kev sib dhos ua ke ntawm qhov khoom. Qhov no ua rau nws tsim nyog rau kev ua cov khoom precision yam tsis muaj kev txi qhov tseeb.
Qhov thib plaub, yuav luag tsis muaj kev txwv rau kev xaiv hmoov. Qhov no txhais tau tias nws muaj peev xwm tso cov hlau nplaum siab rau ntawm qhov chaw ntawm cov hlau nplaum qis, nthuav dav cov khoom siv sib xyaw thiab kev siv laser cladding. Qhov tuab ntawm cov txheej cladding kuj dav heev, nrog rau ib txheej hmoov pub dawb tuab ntawm 0.2 txog 2.0 hli.
Kev xaiv cov cladding yog lwm qhov zoo ntawm laser cladding. Nws ua rau muaj kev siv cov txheej txheem tshwj xeeb, txo cov khoom pov tseg thiab muab kev ua tau zoo heev - rau - tus nqi piv. Lub peev xwm los tsom lub teeb laser tso cai rau cladding hauv thaj chaw nyuaj - mus txog, ua rau nws haum rau cov khoom sib txawv. Thaum kawg, cov txheej txheem no sib xws nrog automation, ua kom ntseeg tau tias muaj kev zoo sib xws thiab kev tsim khoom zoo hauv kev lag luam.
