Kev rhuav tshem cov kab lig kev cai kom ua tiav qhov tshwj xeeb: Laser cladding thev naus laus zis tsim ib qho "ultra-hard armor" rau pistons
Hauv lub plawv ntawm kev lag luam niaj hnub no - hydraulic thiab fluid systems - lub plunger, ua ib qho tseem ceeb ntawm kev txav mus los, uas nws cov khoom nto ncaj qha txiav txim siab qhov kev ntseeg tau, kev ua haujlwm zoo, thiab kev pabcuam lub neej ntawm tag nrho lub cev. Tau ntev, kev hnav, xeb, thiab qaug zog yog cov teeb meem uas cov plinders ib txwm ntsib. Niaj hnub no, peb xav qhia rau koj txog kev siv tshuab ua kom lub ntsej muag muaj zog: laser cladding. Nrog nws cov txiaj ntsig tseem ceeb ntawm "micrometer-level precision" thiab "metallurgical-grade bonding," cov thev naus laus zis no tab tom qhib ib tshooj tshiab hauv kev txhim kho kev ua haujlwm ntawm plunger.
I. Cov Kev Sib Tw Ib Txwm Muaj: Qhov Tsis Zoo ntawm Kev Tiv Thaiv Kev Hnav ntawm Qhov Nto Plunger
Lub plunger raug kev txav mus los rov qab ntau zaus hauv qhov chaw siab, qhov chaw ceev ceev, thiab hauv cov xov xwm nyuaj, ua rau nws qhov chaw raug kev sib txhuam thiab kev cuam tshuam ntau heev. Txawm tias thaum tsim los ntawm cov hlau alloy zoo, cov txheej txheem kho cua sov ib txwm muaj lossis cov txheej txheem chrome plating nyuaj tseem muaj cov kev txwv tseem ceeb.
Lub txheej no nyias nyias (feem ntau
Cov txheej thiab cov khoom siv hauv paus tsuas yog sib txuas ua ke xwb, ua rau muaj kev tawg ua tej daim me me.
Cov txheej txheem chrome plating tab tom ntsib teeb meem kev tiv thaiv ib puag ncig hnyav zuj zus.
Tus nqi ntawm kev hloov lub plunger tag nrho yog siab heev, thiab qhov ua rau lub sijhawm tsis ua haujlwm ua rau muaj kev poob loj heev.
Cov kev txwv no tau dhau los ua cov teeb meem tseem ceeb uas txwv tsis pub ua haujlwm ntev thiab txhim khu kev qha ntawm cov twj plunger.
II. Kev Hloov Pauv Txog Kev Siv Tshuab: Laser cladding yog dab tsi?
Laser cladding, hu ua "directional metallurgy," yog ib qho txheej txheem engineering nto siab heev uas siv cov teeb laser muaj zog heev los yaj cov khoom siv alloy ua haujlwm siab nrog rau saum npoo ntawm cov khoom siv hauv paus, uas ua rau cov khoom khov sai thiab tsim cov txheej txheem ntom ntom, tsis muaj qhov, tsis muaj qhov tawg.
Cov txheej txheem no zoo ib yam li "micro-sculpture welding": Nyob rau hauv kev taw qhia ntawm lub tshuab CNC precision, lub teeb laser txav mus raws li txoj kev taug kev uas tau teem tseg, "fusing thiab embroidering" nanoscale tungsten carbide, cobalt-based, lossis nickel-based alloy hmoov rau ntawm cov chaw tshwj xeeb ntawm lub plunger nto. Lub thickness ntawm cov txheej cladding tuaj yeem hloov kho tau yooj yim hauv qhov ntau ntawm 0.2 txog 3.0 hli, ua rau muaj kev hloov kho qhov kev ua tau zoo meej - txhua qhov chaw xav tau kev txhawb nqa, kev txhawb nqa raug siv raws nraim.
III. Vim li cas laser cladding thiaj yog "kev xaiv zoo dua" rau kev ua kom lub plunger muaj zog?
Qhov nyuaj tau nce ntxiv ntau heev, thiab qhov hnav tsis kam kuj tau ob npaug.
Qhov nyuaj ntawm cov txheej laser cladding tuaj yeem ncav cuag HRC 60–70 (kwv yees li HV 700–1000), uas yog 1.5–2 npaug ntawm cov hlau quenched zoo thiab 2–3 npaug ntawm cov txheej chromium-plated ib txwm muaj. Hauv kev sim hauv qab cov xwm txheej ua haujlwm hnyav, xws li cov uas ntsib hauv cov kev txhawb nqa hydraulic thee thiab cov twj tso kua roj drilling, lub neej ua haujlwm nruab nrab ntawm cov pistons tau nce ntxiv los ntawm 300%–500%.
Qhov kev sib txuas ntawm cov hlau yog muaj zog heev, ua kom ntseeg tau tias kev tev tawm raug tiv thaiv tag nrho.
Thaum kub siab, cov txheej cladding thiab cov khoom siv hauv paus sib xyaw ua ke, tsim cov cheeb tsam hloov pauv metallurgical kwv yees li 50–100 μm hauv tuab. Lub zog sib txuas tau los ntawm txoj kev no tuaj yeem tshaj 80% ntawm lub zog ntawm cov khoom siv hauv paus nws tus kheej, yog li daws qhov teeb meem ntawm cov txheej spalling.
Kev kho kom haum raws li qhov xav tau thiab kev kho kom zoo ua rau muaj kev tsim khoom dua tshiab ntse.
Kev txhawb zog hauv zos: Kev txhawb zog tsuas yog siv rau cov chaw tseem ceeb xws li cov ntawv kaw thiab cov ntu uas muaj siab, yog li txuag cov nqi.
Kev tsim qauv gradient: Ua tiav qhov gradient ua haujlwm zoo tshaj plaws uas nce mus los ntawm cov khoom siv hauv paus mus rau qhov chaw, muaj cov khaubncaws sab nraud povtseg ntawm kev tawv, kev tawv, thiab kev tiv taus kev hnav.
Kev siv dua cov khoom siv lawm: Cov tes tsho plunger uas puas lawm raug kho los ntawm kev cladding, rov qab kho lawv qhov loj me qub thiab txhim kho lawv cov kev ua tau zoo. Tus nqi ntawm cov txheej txheem no tsuas yog 30% txog 40% ntawm tus nqi ntawm kev yuav cov khoom tshiab.
Cov txheej txheem tsim khoom ntsuab: mus rau kev txhim kho kom ruaj khov
Tag nrho cov txheej txheem no tsis muaj kuab paug los ntawm cov hlau hnyav thiab cov dej khib nyiab, thiab tus nqi siv cov khoom siv ntau tshaj 95%. Qhov no yog kev siv tshuab rov ua dua tshiab uas ua rau lub tswv yim ntawm kev tsim khoom ntsuab tiag tiag.
IV. Kev daws teeb meem ntawm lub kaw lus: Hloov cov txiaj ntsig ntawm kev siv tshuab mus rau hauv tus nqi ntawm cov neeg siv khoom
Ntawm Green Laser Tech, peb tsis yog tsuas yog muab cov khoom siv siab heev xwb tab sis kuj siv zog los muab cov kev daws teeb meem rau cov neeg siv khoom kom muaj zog ntawm cov pistons.
Kev ua ntej kho kom raug: Lub kaw lus no siv kev sib xyaw ua ke ntawm micro-sandblasting thiab laser ntxuav kom ntseeg tau tias qhov chaw ntawm lub substrate huv si, yog li tso lub hauv paus rau kev cladding zoo.
Cov cuab yeej siv tshuab cladding ntse ntau-axis: Tsim tshwj xeeb rau cov khoom sib hloov xws li pistons, nws muaj lub tshuab pub hmoov sib dhos thiab lub tshuab ntsuas kub tiag tiag, ua rau cov nplaim sib xws.
Cov ntaub ntawv khoom siv muab kev txhawb nqa los ntawm kev muab ntau dua 30 cov qauv khoom siv tau ntawv pov thawj, muab faib ua 8 pawg loj, los pab txhawb rau ntau yam kev ua haujlwm xws li kev sib tsoo ntub, kev sib tsoo qhuav, thiab kev hnav xeb.
Lub Txheej Txheem Kws Tshaj Lij: Muaj ntau pua pob khoom txheej txheem uas tau teeb tsa ua ntej rau plunger cladding, npog tag nrho cov khoom - los ntawm cov valve cores precision nrog lub cheeb ntawm 20 mm mus rau cov hydraulic cylinder loj nrog lub cheeb ntawm 500 mm.
Kev tswj xyuas zoo tag nrho kaw-lub voj voog: Los ntawm kev koom ua ke kev saib xyuas online thiab kev sim offline, nws tau ua kom ntseeg tau tias qhov nyuaj ntawm cov khoom yog ≤3%, qhov tuab sib txawv yog ≤5%, thiab qhov roughness ntawm qhov chaw Ra yog ≤0.8μm.
V. Kev Kawm Txog Qhov Tseeb: Cov lej qhia txog lub hwj chim ntawm kev hloov pauv li cas
Kev kho qhov project hydraulic ntawm lub qhov dej thee
Rau ib pawg loj ntawm cov tshuab thee hauv tsev, φ360mm column pistons tau kho. Tus nqi ntawm kev cladding txhua qhov khoom yog kwv yees li 12,000 yuan. Yog li ntawd, lub neej ua haujlwm ntawm cov khoom no tau ntev dua los ntawm 8 lub hlis mus rau ntau tshaj 3 xyoos, ua rau cov neeg siv khoom txuag tau ntau dua 4 lab yuan hauv cov nqi hloov pauv dhau sijhawm.
