Yuav ua li cas laser cladding technology reshapes impellers

Yuav ua li cas laser cladding technology reshapes impellers

Hauv kev lag luam tshuab, cov impellers zoo li lub siab tsis muaj zog, tsav cov kab ke nyuaj xws li lub cav dav hlau mus rau cov twj dej loj. Txawm li cas los xij, kev hnav, xeb, thiab kev qaug zog, zoo li tus kws kos duab ntawm lub sijhawm, tawm cov qhov txhab tsis muaj qhov tsis zoo ntawm cov khoom siv tig ceev ceev no. Thaum cov txheej txheem kho ib txwm mus txog lawv qhov txwv, cov thev naus laus zis rov ua dua tshiab hu ua "laser cladding" tab tom muab cov khoom tseem ceeb no "lub neej thib ob" nrog nws qhov kev phais mob thiab khawv koob.

I. Laser Cladding: Metallurgical Magic ntawm Microscale

Lub hauv paus ntsiab lus ntawm cov thev naus laus zis laser cladding yog ib qho khawv koob niaj hnub uas muaj tseeb thiab tswj tau uas tshwm sim hauv millimeter-scale intervals. Nws siv lub teeb laser siab-density (feem ntau 10 ^ 4 ~ 10 ^ 6 W / cm²) ua qhov chaw cua sov kom tam sim ntawd tsim ib lub pas dej me me molten ntawm qhov chaw ntawm lub impeller substrate puas tsuaj. Tib lub sijhawm, cov hmoov hlau ua ntej lossis synchronously muab ntawm cov khoom sib xyaw tshwj xeeb (xws li nickel-based, cobalt-based, lossis tungsten carbide-reinforced composites) raug txhaj rau hauv lub pas dej molten, ua tiav kev sib txuas metallurgical sai nrog cov khoom siv micro-molten substrate. Tag nrho cov txheej txheem, uas cuam tshuam nrog kev yaj, kev sib tov, kev nthuav dav, thiab kev khov sai, ua tiav hauv vib nas this lossis txawm tias milliseconds, tsim ib txheej tuab, ua haujlwm nrog kev sib txuas metallurgical muaj zog rau lub substrate thiab cov khoom sib xyaw thiab cov khoom tswj tau zoo. Qhov no zoo ib yam li "tailor-making" thiab "seamlessly welding" ib lub cuab yeej muaj zog heev rau ntawm qhov tseem ceeb ntawm lub impeller.

II. Cov txiaj ntsig ntawm thev naus laus zis: Kev ua kom raug, Kev ruaj khov, Kev txuag nyiaj, thiab Kev phooj ywg ib puag ncig

Piv rau cov txheej txheem kho ib txwm muaj xws li kev vuam thiab kev txau thermal, laser cladding qhia txog cov txiaj ntsig tsis muaj qhov sib piv hauv kev tsim khoom impeller dua tshiab:

1. Tsis tshua muaj cua sov nkag thiab deformation: Lub zog laser muaj zog heev, thiab thaj chaw uas raug cua sov cuam tshuam yog me me heev (feem ntau yog 0.1-1 hli), uas tuaj yeem tiv thaiv kev hloov pauv thermal thiab kev ntxhov siab ntawm cov khoom nyias-phab lossis cov khoom meej xws li impellers kom loj tshaj plaws thiab xyuas kom meej lawv qhov tseeb geometric.

2. Lub zog sib txuas tsis muaj qhov sib piv: Lub zog sib txuas ntawm cov hlau sib txuas yog siab dua li ntawm cov txheej txheem thermal spray, uas feem ntau yog sib txuas nrog tshuab, ncav cuag 70% -90% ntawm cov khoom siv hauv paus, kom ntseeg tau tias cov txheej txheem ruaj khov thiab tsis poob tawm hauv qab kev ua haujlwm hnyav ntawm kev kub ceev thiab siab siab.

3. Kev ua tau zoo ntawm "Programmable" txheej: Los ntawm kev tsim cov hmoov hlau uas yooj ywm, cov cheeb tsam tshwj xeeb ntawm lub impeller tuaj yeem muab cov khoom tiv thaiv kev hnav, tiv thaiv kev xeb, tiv thaiv kev kub siab oxidation, lossis cov khoom sib xyaw, paub txog "siv tsuas yog qhov xav tau thiab muab tsuas yog cov khoom xav tau".

4. Kev ua tiav zoo heev thiab qhov zoo ntawm qhov chaw: Lub thickness ntawm txheej tuaj yeem tswj tau meej ntawm 0.2-3 hli, thiab qhov saum npoo yog tiaj tus nrog me me kev tso cai ua tom qab, thiab txawm tias ze-net-puab tsim tuaj yeem ua tiav.

5. Cov txiaj ntsig tseem ceeb ntawm kev lag luam ntsuab: Cov nqi kho tsuas yog 30% -50% ntawm kev tsim cov khoom tshiab, kev txuag hluav taws xob thiab cov khoom siv ntau dua 60%, thiab lub neej impeller tag nrho tau ntev heev, ua rau nws yog ib qho piv txwv zoo ntawm kev lag luam ncig thiab cov tswv yim kev txhim kho ruaj khov.

III. Cov Txheej Txheem Cladding: Txij li 3D Scanning mus rau Fine Finishing

Impeller laser cladding remanufacturing yog ib qho txheej txheem engineering uas muaj txheej txheem thiab meej:

1. Kev ntsuam xyuas kev puas tsuaj thiab kev hloov pauv 3D: Ua ntej, kev sim tsis ua puas tsuaj yog ua rau ntawm lub impeller qub, thiab cov qauv geometric meej ntawm thaj chaw puas tsuaj tau txais los ntawm kev siv 3D scanning.

2. Kev Npaj Txoj Kev thiab Kev Tsim Cov Txheej Txheem: Raws li tus qauv, txoj kev luam theej zoo tshaj plaws ntawm lub taub hau laser tau npaj tseg, thiab cov txheej txheem tseem ceeb xws li lub zog laser sib phim, qhov ceev luam theej, thiab qhov nrawm pub hmoov tau txiav txim siab.

3. Kev kho ua ntej rau cov khoom siv: Thaj chaw kho yuav raug ntxuav kom huv si, tshem tawm cov av qias neeg, thiab kho kom ntxhib. Qee zaum yuav tsum tau ua kom sov ua ntej kom txo tau kev ntxhov siab ntawm cua sov.

4. Kev Ntsuas Cladding thiab Kev Saib Xyuas Txheej Txheem: Nyob rau hauv kev ua haujlwm ntawm lub tshuab CNC lossis lub tshuab hlau, lub taub hau laser txav mus raws txoj kev uas tau teem tseg, sib dhos thiab pub hmoov raws nraim, thiab cov xwm txheej ntawm lub pas dej molten raug saib xyuas lub sijhawm tiag tiag kom ntseeg tau tias muaj txiaj ntsig zoo.

5. Kev Ua Tom Qab thiab Kev Ntsuam Xyuas Kev Ua Tau Zoo: Tom qab cladding, stress-relief annealing yuav ua tau, ntxiv los ntawm kev siv tshuab tsim nyog los rov qab kho qhov tseeb ntawm cov hniav. Thaum kawg, kev tshuaj xyuas qhov ntev, tsis ua puas tsuaj, thiab kev ua tau zoo raug ua.

IV. Kev Yug Dua Tshiab: Kev Txhim Kho Kev Ua Haujlwm thiab Kev Tshawb Pom Tus Nqi Dua

Cov impellers uas tau ua tiav laser cladding remanufacturing feem ntau ua tiav qhov kev ua tau zoo tag nrho, txawm tias tshaj qhov ntawm cov khoom tshiab:

Nyob rau hauv cov nqe lus ntawm kev ua tau zoo: Qhov nyuaj ntawm cov khoom tseem ceeb (xws li ntug cua nkag thiab lub hau hniav) tuaj yeem nce mus txog 2-3 npaug ntawm cov khoom siv hauv paus, thiab lub neej tiv taus hnav ntev dua 3-10 npaug; qhov kev tiv taus corrosion thiab cavitation tsis kam ua tiav qhov kev dhia zoo. Piv txwv li, tom qab lub impeller ntawm lub twj tso kua mis fais fab tau clad nrog cov hlau cobalt, nws lub neej tiv taus cavitation nce ntau dua 5 npaug.

Qib geometric: Rov kho dua lossis ua kom zoo dua qub qhov qauv tsim qub, ua kom muaj kev ua haujlwm hydraulic thiab kev ua haujlwm aerodynamic.

Qib kev lag luam: Txo cov nqi kho khoom siv thiab cov nqi yuav khoom seem, txo qhov kev poob sijhawm tsis tau npaj tseg.

Qib kev npaj ua ntej: Cov thev naus laus zis no yog qhov tseem ceeb rau kev ua haujlwm kom muaj kev nyab xeeb mus sij hawm ntev ntawm cov khoom siv tseem ceeb hauv cov khoom tseem ceeb xws li fais fab, petrochemicals, nkoj tsim, thiab aviation, thiab rau kev txo kev vam khom rau cov khoom seem xa tuaj.

Xaus lus

Txij li cov ntsiab lus sib txuas ntawm cov hlau sib txuas mus rau qhov kev hloov pauv loj ntawm cov impellers, laser cladding thev naus laus zis zoo kawg nkaus ua rau muaj kev sib koom ua ke ntawm "kev ua kom raug" thiab "lub zog" hauv kev tsim khoom niaj hnub. Nws tsis yog tsuas yog kev kho xwb, tab sis yog txoj hauv kev hloov pauv ntawm kev ua tau zoo thiab kev tsim khoom ntsuab. Nrog kev sib koom ua ke tob ntawm cov thev naus laus zis ntse thiab digital thiab kev ua laser, laser cladding yuav tsis muaj kev poob siab sau ntau cov lus dab neeg hauv kev lag luam hauv thaj chaw dav dav ntawm kev tsim khoom siv siab.