Njira zingapo za kupukuta nkhungu

Ndi ntchito yaikulu yazinthu zapulasitiki, anthu ali ndi zofunika apamwamba ndi apamwamba maonekedwe khalidwe la mankhwala pulasitiki, kotero pamwamba kupukuta khalidwe la pulasitiki nkhungu patsekeke ayeneranso bwino moyenerera, makamaka nkhungu pamwamba roughness wa galasi pamwamba ndi pamwamba gloss mkulu-kuwala pamwamba. Zofunikira ndizokwera kwambiri, choncho zofunikira zopukuta zimakhalanso zapamwamba. Kupukuta kumangowonjezera kukongola kwa workpiece, komanso kumapangitsanso kukana kwa dzimbiri ndi kuvala kukana kwa zinthu zakuthupi, komanso kungathandizenso kupanga jekeseni wotsatira, monga kupanga zinthu zapulasitiki zosavuta kutulutsa ndi kuchepetsa kupanga jekeseni wozungulira. Masiku ano, njira zomwe zimagwiritsidwa ntchito kwambiri popukutira ndi izi:

(1) Kupukuta pamakina

Kupukuta kwamakina ndi njira yopukutira momwe malo osalala amapezedwa ndi kudula ndi kupindika kwa pulasitiki pamwamba pa zinthuzo kuti achotse gawo lopukutidwa la convex. Nthawi zambiri, mizere ya whetstone, mawilo a ubweya, sandpaper, etc. Pogwiritsa ntchito zida zothandizira monga ma turntables, mphero yowonjezereka kwambiri ndi njira zopukutira zingagwiritsidwe ntchito kwa omwe ali ndi zofunikira zapamwamba. Ultra-mwatsatanetsatane akupera ndi kupukuta ndi wapadera abrasive chida, amene mbamuikha pamwamba pa workpiece kuti makina akupera ndi kupukuta madzi okhala ndi abrasive, ndipo azungulire pa liwiro lalikulu. Pogwiritsa ntchito luso limeneli, pamwamba roughness wa Ra0.008μm chingapezeke, amene ali apamwamba pakati pa njira zosiyanasiyana kupukuta. Ma lens opangira ma lens nthawi zambiri amagwiritsa ntchito njirayi. ...

(2) Akupanga kupukuta

The workpiece aikidwa mu abrasive kuyimitsidwa ndi anaika mu akupanga kumunda pamodzi, ndi abrasive ndi pansi ndi opukutidwa padziko workpiece ndi oscillation wa akupanga yoweyula. The macroscopic mphamvu akupanga processing ndi yaing'ono, ndipo sichidzachititsa mapindikidwe a workpiece, koma n'zovuta kupanga ndi kukhazikitsa tooling. Akupanga Machining akhoza pamodzi ndi mankhwala kapena electrochemical njira. Pamaziko a njira dzimbiri ndi electrolysis, akupanga kugwedera umagwiritsidwa ntchito kusonkhezera njira, kuti kusungunuka mankhwala padziko workpiece ndi detached, ndi dzimbiri kapena electrolyte pafupi padziko ndi yunifolomu; cavitation zotsatira za akupanga mafunde mu madzi akhoza ziletsa dzimbiri ndondomeko, amene ndi abwino padziko kuwala.

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(3) Kupukuta madzi

Kupukuta kwamadzimadzi kumadalira madzi othamanga kwambiri komanso tinthu ting'onoting'ono tomwe timanyamula kuti tifufuze pamwamba pa workpiece kuti tikwaniritse cholinga chopukuta. Ambiri ntchito njira ndi: abrasive jet Machining, madzi ndege Machining, hydrodynamic akupera, etc. Hydrodynamic akupera imayendetsedwa ndi kuthamanga hayidiroliki, kuti madzi sing'anga kunyamula abrasive particles umayenda reciprocatingly padziko workpiece pa liwiro lalikulu. Sing'angayo imapangidwa makamaka ndi zinthu zapadera (zinthu zonga polima) zoyenda bwino pansi pa kupanikizika pang'ono komanso kusakanikirana ndi ma abrasives, ndipo ma abrasives amatha kukhala silicon carbide powder.

(4) Kupera ndi kupukuta ndi maginito

Kupera ndi kupukuta ndi maginito ndikugwiritsa ntchito maginito abrasives kupanga maburashi onyezimira pansi pa mphamvu ya maginito pogaya zogwirira ntchito. Njira imeneyi ali mkulu processing dzuwa, khalidwe labwino, kulamulira mosavuta zinthu processing ndi zinthu zabwino ntchito. Ndi ma abrasives abwino, kuuma kwapamwamba kumatha kufika ku Ra0.1μm

The kupukuta mu pulasitiki nkhungu processing ndi osiyana kwambiri ndi pamwamba kupukuta chofunika m'mafakitale ena. Kunena zoona, kupukuta kwa nkhungu kumayenera kutchedwa galasi processing. Sizingokhala ndi zofunikira zapamwamba zodzipukutira zokha komanso miyezo yapamwamba yokhazikika pamtunda, kusalala ndi kulondola kwa geometric. Kupukuta pamwamba kumangofunika kokha kuti mupeze malo owala

Muyezo wa galasi processing wagawidwa m'magulu anayi: AO = Ra0.008μm, A1 = Ra0.016μm, A3 = Ra0.032μm, A4 = Ra0.063μm, n'zovuta kulamulira molondola mawonekedwe a geometric chifukwa cha kupukuta kwa electrolytic , kupukuta madzimadzi ndi njira zina Komabe, pamwamba khalidwe la mankhwala kupukuta, akupanga kupukuta, maginito akupera ndi kupukuta njira sangathe kukumana ndi zofunika, kotero kalilole pamwamba processing wa nkhungu mwatsatanetsatane akadali cholamulidwa ndi kupukuta makina.