Xov Xwm Tuam Txhab

Polishing txoj kev ntawm yas pwm

Tshuab polishing

Mechanical polishing yog ib txoj kev polishing uas tso siab rau kev txiav thiab yas deformation ntawm cov khoom nto kom tshem tawm cov polished convex qhov chaw kom tau qhov chaw du. Feem ntau, roj pob zeb sticks, wool log, sandpaper, thiab lwm yam yog siv, thiab phau ntawv ua haujlwm yog txoj hauv kev tseem ceeb. Qhov tshwj xeeb xws li qhov chaw ntawm lub cev tig tuaj yeem siv tau. Siv cov cuab yeej pabcuam xws li turntables, ultra-precision polishing tuaj yeem siv rau cov neeg uas xav tau qhov zoo tshaj plaws. Ultra-precision polishing yog siv cov cuab yeej tshwj xeeb abrasive, uas yog nias nruj nreem rau ntawm qhov chaw ua haujlwm hauv cov kua polishing uas muaj cov abrasives rau kev sib hloov 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.

Tshuaj polishing

Tshuaj polishing yog ua kom lub ntsej muag microscopic convex ib feem ntawm cov khoom nyob rau hauv cov tshuaj nruab nrab dissolve preferentially tshaj lub concave ib feem, thiaj li yuav tau ib tug du nto. Lub ntsiab kom zoo dua ntawm txoj kev no yog tias nws tsis xav tau cov cuab yeej nyuaj, tuaj yeem polish workpieces nrog cov duab nyuaj, thiab tuaj yeem polish ntau workpieces tib lub sijhawm, nrog kev ua haujlwm siab. Cov teeb meem tseem ceeb ntawm cov tshuaj polishing yog kev npaj cov kua polishing. Qhov saum npoo roughness tau los ntawm cov tshuaj polishing feem ntau yog ob peb 10 μm.

Electrolytic polishing

Lub hauv paus ntsiab lus ntawm electrolytic polishing yog tib yam li cov tshuaj polishing, uas yog, los ntawm kev xaiv dissolving me me protrusions rau saum npoo ntawm cov khoom los ua kom lub ntsej muag du. Piv nrog tshuaj polishing, cov nyhuv ntawm cov tshuaj tiv thaiv cathode tuaj yeem raug tshem tawm, thiab cov nyhuv zoo dua. Cov txheej txheem electrochemical polishing tau muab faib ua ob kauj ruam: (1) Macroscopic leveling Cov khoom tawg tau diffuse rau hauv electrolyte, thiab geometric roughness ntawm cov khoom nto txo, Ra> 1μm. ⑵ Low-light leveling: Anode polarization, nto brightness yog txhim kho, Ra <1μm.

Ultrasonic polishing

Muab lub workpiece tso rau hauv lub abrasive ncua kev kawm ntawv thiab muab tso ua ke nyob rau hauv lub ultrasonic teb, cia siab rau lub oscillation nyhuv ntawm lub ultrasonic, thiaj li hais tias lub abrasive yog av thiab polished nyob rau saum npoo ntawm lub workpiece. Ultrasonic machining muaj me me macroscopic quab yuam thiab yuav tsis ua rau deformation ntawm lub workpiece, tab sis nws yog ib qho nyuaj rau tsim thiab nruab tooling. Kev ua ultrasonic tuaj yeem ua ke nrog cov tshuaj lom neeg lossis cov txheej txheem electrochemical. 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 sib cais, thiab cov corrosion los yog electrolyte nyob ze ntawm lub nto yog uniform; cov nyhuv cavitation ntawm ultrasonic hauv cov kua kuj tuaj yeem cuam tshuam cov txheej txheem corrosion thiab pab txhawb qhov ci ntsa iab.

Kua polishing

Cov kua polishing tso siab rau cov kua dej nrawm nrawm thiab cov khoom siv abrasive nqa los ntawm nws los ntxuav qhov chaw ua haujlwm kom ua tiav lub hom phiaj ntawm polishing. Feem ntau siv txoj kev yog: abrasive dav hlau ua, kua dav hlau ua, hydrodynamic sib tsoo thiab lwm yam. Hydrodynamic sib tsoo yog tsav los ntawm hydraulic siab kom cov kua nruab nrab nqa cov khoom abrasive ntws rov qab thiab tawm mus thoob plaws qhov chaw ntawm qhov chaw ua haujlwm ntawm kev kub ceev. Qhov nruab nrab yog tsim los ntawm cov khoom sib txuas tshwj xeeb (polymer zoo li cov khoom) nrog zoo flowability nyob rau hauv qis siab thiab tov nrog abrasives. Cov abrasives tuaj yeem ua los ntawm silicon carbide hmoov.

Sib nqus sib tsoo thiab polishing

Sib nqus abrasive polishing yog siv cov hlau nplaum abrasive los tsim cov txhuam txhuam hauv qab qhov kev txiav txim ntawm cov hlau nplaum kom 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. Siv cov abrasives tsim nyog, qhov roughness ntawm qhov chaw tuaj yeem ncav cuag Ra0.1μm. 2 Txhua yam polishing raws li txoj kev no Cov polishing tau hais hauv kev ua cov pwm yas yog qhov sib txawv ntawm qhov chaw polishing uas yuav tsum tau ua hauv lwm cov lag luam. Hais lus nruj me ntsis, polishing ntawm pwm yuav tsum hu ua daim iav ua. Nws tsis tsuas yog muaj 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 xav tau lub ntsej muag ci. Tus qauv ntawm daim iav nto ua tiav yog muab faib ua plaub theem: AO = Ra0.008μm, A1 = Ra0.016μm, A3 = Ra0.032μm, A4 = Ra0.063μm. Nws yog ib qho nyuaj rau precisely tswj lub geometric raug ntawm qhov chaw vim txoj kev xws li electrolytic polishing thiab kua polishing. Txawm li cas los xij, qhov zoo ntawm cov tshuaj polishing, ultrasonic polishing, sib nqus abrasive polishing thiab lwm txoj kev tsis yog raws li qhov yuav tsum tau ua, yog li daim iav ua ntawm precision pwm tseem yog cov neeg kho tshuab polishing.