Dab tsi yog cov txheej txheem pabcuam hauv cov txheej txheem pleev xim?

Dab tsi yog cov txheej txheem pabcuam hauv cov txheej txheem pleev xim?

Nrog rau txoj kev loj hlob sai ntawm cov txheej txheem kev lag luam, cov txheej txheem txheej txheej hauv tsev thiab cov txheej txheem kev tswj hwm tau txais kev saib xyuas thiab ua tau zoo. Cov txheej txheem pleev xim feem ntau muaj ntau yam txheej txheem tseem ceeb, thiab cov txheej txheem ntawm cov txheej txheem yog nyob ntawm qhov zoo nkauj thiab kev ua haujlwm ntawm txheej txheej. Rau cov ntawv thov kev thov siab, tuaj yeem muaj kaum lossis ntau pua tus txheej txheem. Txawm li cas los xij, hais txog cov ntsiab lus thiab cov ntsiab lus ntawm cov txheej txheem, cov txheej txheem pleev xim yog tsim los ntawm peb txheej txheem yooj yim: kev kho ua ntej, txheej thiab ziab, nrog rau ntau cov txheej txheem pabcuam.

Cov txheej txheem pabcuam tsis yog ib feem tseem ceeb ntawm txheej txheej txheej txheej txheej, tab sis yog txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheej txheem tseem ceeb lossis ua tau raws li cov kev cai tshwj xeeb ntawm qee yam khoom. Nws suav nrog cov txheej txheem xws li polishing, waxing, waxing, siv cov xim hauv qab tsheb, sealing, thiab lwm yam. Vim tias lawv yog cov txheej txheem pabcuam, ntau lub tuam txhab tsis tau txais kev lees paub txaus thiab kev saib xyuas rau cov txheej txheem no.

polish

Polishing yog muab faib ua polishing qhuav thiab ntub polishing. Qhuav polishing tsis tas yuav tsum tau dej kom moisten, thaum ntub polishing lubricates lub txheej nrog dej los yog lwm yam ntaub ntawv ntub dej kom tau ib tug smoother nto thiab tshem tawm cov hmoov av sib tsoo. Piv txwv li, thaum polishing nitrocellulose xim thiab perchlorethylene xim, tsis tsuas yog ntub lawv nrog dej, tab sis kuj nrog ntoo thuv perfumes. Txhawm rau txhim kho qhov kho kom zoo nkauj ntawm cov xim tiav, nws tuaj yeem polished nrog cov ntawv xuab zeb zoo ua ntej polishing, los yog cov dej soapy tuaj yeem siv los ua tus neeg sawv cev ntub dej. Lub hom phiaj tseem ceeb ntawm polishing yog:

1. Tshem tawm cov burrs thiab cov khib nyiab xws li ntab xeb los ntawm qhov chaw ntawm lub substrate;

2. Tshem tawm cov khoom, roughness, thiab unevenness ntawm coated nto ntawm lub workpiece. Piv txwv li, qhov chaw scraped nrog putty feem ntau yog ntxhib thiab tsis sib xws tom qab ziab, thiab yuav tsum tau polished kom tau ib tug du nto;

3. Txhim kho qhov adhesion ntawm txheej. Lub adhesion ntawm txheej ntawm cov npoo du yog qhov tsis zoo, thiab polishing tuaj yeem txhim kho cov neeg kho tshuab adhesion ntawm txheej. Yog li ntawd, polishing yog ib qho ntawm cov haujlwm tseem ceeb los txhim kho cov nyhuv txheej.

Coarse los yog nplua sandpaper, woodworking sandpaper, thiab lwm yam. feem ntau yog siv los polish rau saum npoo ntawm substrate. Cov txheej putty rau polishing thiab filling pits feem ntau yog ua los ntawm cov ntawv xuab zeb zoo los yog pob zeb sib tsoo. Sandcloth thiab woodworking sandpaper tsuas yog tsim rau polishing qhuav. Thaum siv cov coatings thiab topcoats thaum ntub polishing, siv dej-resistant sandpaper (dej sandpaper). Raws li abrasive particle loj ntawm dej-resistant sandpaper, muaj ob peb tus lej, thiab ntau dua tus naj npawb, qhov me me ntawm abrasive particle loj thiab cov ntawv xuab zeb zoo dua.

Thaum polishing, cov khoom tseem ceeb uas yuav tsum tau saib xyuas yog:

1. Kev xaiv cov ntaub ntawv polishing yuav tsum nruj me ntsis raws li cov txheej txheem, thiab 80 # rau 120 # sandpaper yuav tsum tau siv rau qhuav polishing putty; Siv 240 # ~ 320 # dej xuab zeb rau ntub polishing ntawm nruab nrab txheej; ntub polishing topcoat txheej yuav tsum siv 360 #, 400 # ~ 600 # dej sandpaper, thiab yuav tsum tsis muaj seem ntawm cov ntawv xuab zeb. Nyob rau tib lub sijhawm, qhov zoo ntawm cov ntawv xuab zeb-resistant dej yuav tsum tau kuaj xyuas ua ntej polishing, thiab yuav tsum tsis muaj cov khoom tsis huv (cov xuab zeb ntxhib) kom tsis txhob khawb cov txheej. Thaum siv cov ntawv xuab zeb-resistant, nws yuav tsum tau moistened nrog dej ua ntej yuav torn los yog quav rau siv;

2. Ceev faj yuav tsum tau them rau directionality thaum polishing, thiab nws tsis pom zoo kom grind randomly nyob rau hauv tag nrho cov lus qhia. Thaum polishing, nws tsis pom zoo kom nias nruj heev. Txhawm rau txhim kho qhov flatness ntawm polished nto, cork los yog roj hmab sib tsoo blocks tuaj yeem muab tso rau ntawm daim ntawv xuab zeb thaum tuav polishing. Cork sib tsoo blocks yog tsim rau sanding putty nyob rau hauv nruab nrab txheej daim ntaub ntawv; Rubber sib tsoo blocks yog tsim rau nruab nrab lossis topcoat daim ntaub ntawv;

3. Thaum lub sij hawm polishing txheej txheem, polishing tshauv yuav tsum tau muab tshem tawm tsis tu ncua. Tom qab ntub polishing, nws yuav tsum tau rinsed nrog dej deionized, tshuab qhuav, thiab coated nto yuav tsum tau qhuav;

4. Cov txheej yuav tsum qhuav tag ua ntej polishing, txwv tsis pub cov ntawv xuab zeb yuav lo thaum polishing, uas yuav cuam tshuam rau polishing zoo.

Vim tias polishing feem ntau ua tiav manually, qee zaum nrog kev pab los ntawm cov cuab yeej pneumatic lossis qee yam khoom siv yooj yim, kev siv zog ntawm polishing yog siab, thiab kev siv zog tau ua los tshem tawm cov haujlwm no hauv kev tsim cov txheej txheem.