Nrog rau kev siv dav ntawmcov khoom yas, cov pej xeem muaj ntau dua thiab siab dua qhov yuav tsum tau ua rau cov tsos zoo ntawm cov khoom yas, yog li qhov zoo ntawm polishing zoo ntawm cov yas pwm kab noj hniav yuav tsum tau txhim kho raws li, tshwj xeeb tshaj yog cov pwm nto roughness ntawm daim iav nto thiab high-gloss high-brightness nto. Cov kev xav tau siab dua, thiab yog li cov kev xav tau rau polishing kuj siab dua. Polishing tsis tsuas yog ua kom zoo nkauj ntawm lub workpiece, tab sis kuj txhim kho corrosion kuj thiab hnav tsis kam ntawm cov khoom nto, thiab tseem tuaj yeem pab txhawb kev txhaj tshuaj molding, xws li ua cov khoom yas yooj yim rau demould thiab txo cov kev txhaj tshuaj molding. Tam sim no, feem ntau siv polishing txoj kev yog raws li nram no:
(1) Mechanical polishing
Mechanical polishing yog ib txoj kev polishing nyob rau hauv uas ib tug du nto yog tau los ntawm kev txiav thiab yas deformation ntawm lub nto ntawm cov khoom kom tshem tawm cov polished convex ib feem. Feem ntau, whetstone strips, wool log, sandpaper, thiab lwm yam. Siv cov cuab yeej pabcuam xws li turntables, ultra-nplua kev sib tsoo thiab polishing txoj kev tuaj yeem siv rau cov uas muaj qhov xav tau zoo. Ultra-precision sib tsoo thiab polishing yog ib qho tshwj xeeb abrasive cuab yeej, uas yog nias rau ntawm qhov chaw ntawm lub workpiece yuav tsum machined nyob rau hauv lub sib tsoo thiab polishing kua uas muaj abrasive, thiab rotates ntawm kev kub ceev. Siv cov thev naus laus zis no, qhov roughness ntawm Ra0.008μm tuaj yeem ua tiav, uas yog qhov siab tshaj plaws ntawm ntau txoj kev polishing. Optical lens pwm feem ntau siv txoj kev no.
(2) Ultrasonic polishing
Lub workpiece yog muab tso rau hauv lub abrasive ncua kev kawm ntawv thiab muab tso rau hauv lub ultrasonic teb ua ke, thiab lub abrasive yog av thiab polished nyob rau saum npoo ntawm lub workpiece los ntawm oscillation ntawm lub ultrasonic yoj. Lub zog macroscopic ntawm kev ua ultrasonic yog me me, thiab nws yuav tsis ua rau deformation ntawm lub workpiece, tab sis nws yog ib qho nyuaj rau ua thiab nruab cov cuab yeej. Ultrasonic machining tuaj yeem ua ke nrog cov tshuaj los yog electrochemical txoj kev. Nyob rau hauv lub hauv paus ntawm kev daws corrosion thiab electrolysis, ultrasonic kev co yog siv los do cov tshuaj, kom cov khoom yaj nyob rau saum npoo ntawm lub workpiece yog detached, thiab cov corrosion los yog electrolyte nyob ze ntawm lub nto yog uniform; cov nyhuv cavitation ntawm ultrasonic tsis nyob rau hauv cov kua kuj tuaj yeem cuam tshuam cov txheej txheem corrosion, uas yog qhov zoo rau qhov ci ntsa iab.
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(3) Cov kua dej polishing
Cov kua polishing tso siab rau cov kua dej nrawm nrawm thiab cov khoom abrasive nqa los ntawm nws los txhuam qhov chaw ntawm qhov chaw ua haujlwm kom ua tiav lub hom phiaj ntawm polishing. Feem ntau siv txoj kev yog: abrasive dav hlau machining, kua dav hlau machining, hydrodynamic sib tsoo, thiab lwm yam. Hydrodynamic sib tsoo yog tsav los ntawm hydraulic siab, kom cov kua nruab nrab nqa abrasive hais ntws reciprocatingly thoob plaws saum npoo ntawm lub workpiece ntawm kev kub ceev. Qhov nruab nrab yog tsuas yog ua los ntawm cov sib txuas tshwj xeeb (polymer-zoo li cov khoom) nrog zoo flowability nyob rau hauv qis siab thiab tov nrog abrasives, thiab cov abrasives yuav ua tau silicon carbide hmoov.
(4) Sib nqus sib tsoo thiab polishing
Sib nqus sib tsoo thiab polishing yog siv cov hlau nplaum abrasives los tsim cov txhuam txhuam hauv qab qhov kev txiav txim ntawm cov hlau nplaum los zom cov khoom ua haujlwm. Txoj kev no muaj kev ua haujlwm siab, ua haujlwm zoo, tswj tau yooj yim ntawm kev ua haujlwm thiab kev ua haujlwm zoo. Nrog rau qhov tsim nyog abrasives, qhov roughness ntawm qhov chaw tuaj yeem ncav cuag Ra0.1μm
Lub polishing nyob rau hauv yas pwm ua yog txawv heev los ntawm polishing nto yuav tsum tau nyob rau hauv lwm yam lag luam. Hais lus nruj me ntsis, polishing ntawm pwm yuav tsum hu ua daim iav ua. Nws tsis tsuas yog muaj cov kev xav tau siab rau polishing nws tus kheej tab sis kuj muaj cov qauv siab rau qhov chaw flatness, smoothness thiab geometric raug. Nto polishing feem ntau tsuas yog yuav tsum tau kom tau txais qhov ci ntsa iab
Tus qauv ntawm daim iav ua tau muab faib ua plaub qib: AO = Ra0.008μm, A1 = Ra0.016μm, A3 = Ra0.032μm, A4 = Ra0.063μm, nws yog qhov nyuaj rau kev tswj xyuas qhov tseeb ntawm qhov tseeb ntawm qhov chaw vim electrolytic polishing. , kua polishing thiab lwm txoj kev Txawm li cas los xij, qhov zoo ntawm cov tshuaj polishing, ultrasonic polishing, sib nqus sib nqus thiab polishing txoj kev tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua, yog li daim iav nto ua cov pwm precision tseem yog cov neeg kho tshuab polishing.
Post lub sij hawm: May-11-2022
