Polishing yog hais txog cov txheej txheem ua haujlwm uas siv cov khoom siv kho tshuab, tshuaj lom neeg lossis hluav taws xob ua haujlwm los txo qhov roughness ntawm cov khoom ua haujlwm kom tau txais qhov kaj thiab tiaj tus. Kev tuav polishing tsis tuaj yeem txhim kho qhov tseeb ntawm qhov tseeb lossis cov duab geometric qhov tseeb ntawm cov khoom ua haujlwm, tab sis lub hom phiaj kom tau txais qhov chaw du lossis daim iav luster, thiab qee zaum nws kuj tseem siv los tshem tawm cov luster (extinction).
Muaj ntau ntau yam khoom siv tes polishing, feem ntau muab faib ua: polishing wax, polishing daim ntaub log, nylon log, hemp log, hlau log, cua log, lwm yam ntaub ntawv log, thiab lwm yam.
Txawv workpiece polishing muaj cov txheej txheem polishing sib txawv, thiab cov txheej txheem sib txawv yuav tsum muaj cov khoom siv polishing sib txawv. Cov txheej txheem ib txwm siv polishing tau muab faib ua peb txheej txheem: ntxhib polishing, semi zoo polishing thiab nplua polishing. Niaj hnub no, nrog rau txoj kev loj hlob sai ntawm polishing tshuab, phau ntawv polishing txheej txheem kuj tau sai thiab txhim khu kev qha, shortening lub polishing txheej txheem rau ob txheej txheem, thiab txawm ib co workpieces yuav zoo polished nyob rau hauv ib tug txheej txheem.
Siv cov polishing ntawm tes phaj aluminium alloy handicrafts ua piv txwv, muaj ob txoj kev siv rau polishing aluminium alloy. Lawv yog acid polishing thiab alkaline polishing. Tes polishing yog tsis muaj dab tsi ntau tshaj li kom tau ib tug du thiab tiaj nto ntawm workpiece, uas yog ib txoj kev ntawm tes nto kho. Cov txheej txheem polishing sib txawv muaj lawv qhov zoo thiab qhov tsis zoo.
Siv cov tshuaj polishing thiab electrochemical polishing ntawm aluminium alloy alkaline polishing ua piv txwv:
1. Alkaline tshuaj polishing:
Qhov zoo ntawm aluminium iav polishing thiab aluminium alloy polishing: Nws muaj feem xyuam rau txhua yam ntawm txhuas thiab txhuas alloys, thiab tseem tuaj yeem tau txais txiaj ntsig zoo (txhuas xim xim thiab luster) rau cam khwb cia txhuas thiab tuag-casting txhuas (nrog cov ntsiab lus tsis muaj impurity thiab xuab zeb). blasting kev kho mob). Tsis muaj nitric acid, tsis muaj kuab paug Huanglong.
Disadvantages: Nws muaj ib tug loj npaum li cas ntawm aluminium dissolution thiab gloss dav, thiab tsis haum rau precision qhov chaw thiab qhov chaw nrog daim iav gloss yuav tsum.
2. Electrochemical polishing
Qhov zoo: tsis muaj hexavalent chromium muaj kuab paug, tus nqi qis, thiab daim iav luster.
Disadvantages: Cov txheej txheem yog complex, yuav tsum tau rectification fais fab mov, fixture thiab anode tsiv ntaus ntawv.