Ngokusetyenziswa ngokubanzi kweiimveliso zeplastiki, uluntu lunemfuno eziphezulu neziphezulu zomgangatho wenkangeleko yeemveliso zeplastiki, ngoko ke umgangatho wokugudisa umphezulu womgodi wokungunda weplastiki kufuneka nawo uphuculwe ngokufanelekileyo, ngakumbi uburhabaxa bomphezulu wokungunda womphezulu wesipili kunye nokukhanya okuphezulu kweglosi. Iimfuno ziphezulu, kwaye ke iimfuno zokupholisha nazo ziphezulu. Ukucwenga akukonyusi nje ubuhle besixhobo sokusebenza, kodwa kukwaphucula ukuxhathisa umhlwa kunye nokunganyangeki komphezulu wezinto eziphathekayo, kwaye kunokuququzelela ukubunjwa kwenaliti elandelayo, njengokwenza iimveliso zeplastiki zibe lula ukwenza kunye nokunciphisa imijikelo yokubumba inaliti yemveliso. Okwangoku, iindlela ezixhaphakileyo zokupolisha zezi zilandelayo:
(1) Ukugulisa oomatshini
Ukupholisa ngoomatshini yindlela yokupolisha apho umphezulu ogudileyo ufunyanwa ngokusikwa kunye nokuguqulwa kweplastiki kumphezulu wezinto eziphathekayo ukususa inxalenye epholisiweyo yeconvex. Ngokuqhelekileyo, i-whetstone strips, amavili oboya, i-sandpaper, njl. Ukusebenzisa izixhobo ezincedisayo ezifana nee-turntables, iindlela zokusila kunye ne-polish zingasetyenziselwa abo banemfuno zomgangatho ophezulu. I-Ultra-precision yokusila kunye ne-polish sisixhobo esikhethekileyo sokuqhaqhaqha, esicinezelwe phezu kwendawo yokusebenza ukuba ifakwe kumatshini wokusila kunye ne-polish liquid equkethe i-abrasive, kwaye ijikeleza ngesantya esiphezulu. Ukusebenzisa le teknoloji, uburhabaxa bomphezulu beRa0.008μm bunokufezekiswa, eyona nto iphezulu phakathi kweendlela ezahlukeneyo zokupolisha. Iilensi zamehlo zihlala zisebenzisa le ndlela
(2) I-ultrasonic polishing
I-workpiece ifakwe kwi-abrasive suspension kwaye ifakwe kwintsimi ye-ultrasonic kunye, kwaye i-abrasive iphantsi kwaye iphuculwe phezu kwendawo yokusebenza nge-oscillation ye-ultrasonic wave. I-macroscopic force ye-ultrasonic processing incinci, kwaye ayiyi kubangela i-deformation ye-workpiece, kodwa kunzima ukwenza kunye nokufaka izixhobo zokusebenza. I-ultrasonic machining inokudibaniswa kunye neendlela zeekhemikhali okanye ze-electrochemical. Ngesiseko se-corrosion yesisombululo kunye ne-electrolysis, i-vibration ye-ultrasonic isetyenziselwa ukuvuselela isisombululo, ukwenzela ukuba iimveliso ezichithwe kumphezulu we-workpiece zivaliwe, kwaye i-corrosion okanye i-electrolyte kufuphi nomphezulu ifana; impembelelo ye-cavitation yamaza e-ultrasonic kumanzi angaphinda avimbele inkqubo ye-corrosion, ehambelana nokukhanya kwendawo.
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(3) Ukugulisa ulwelo
Ukupholishwa kolwelo kuxhomekeke kulwelo olubaleka ngesantya esiphezulu kunye namasuntswana abrasive athwalwa yiyo ukukhuhla umphezulu wesixhobo sokusebenza ukufezekisa injongo yokupolisha. Iindlela ezisetyenziswa ngokuqhelekileyo zezi: i-abrasive jet machining, i-jet machining ye-liquid, i-hydrodynamic grinding, njl. Isiphakathi senziwe ikakhulu ngeekhompawundi ezikhethekileyo (izinto ezifana nepolymer) ezinokuqukuqela kakuhle phantsi koxinzelelo oluphantsi kwaye zixutywe neziqholo, kwaye iziqhushumbisi zinokuba ngumgubo wesilicon carbide.
(4) Ukusila ngemagnethi nokupholisha
Ukusila ngemagnethi kunye nokupholisha kukusebenzisa izithabazi zemagnethi ukwenza iibhrashi ezirhabaxa phantsi kwentshukumo yemagnethi yokusila izixhobo zokusebenza. Le ndlela iphezulu yokusebenza kakuhle, umgangatho omhle, ulawulo olulula lweemeko zokucubungula kunye neemeko ezilungileyo zokusebenza. Ngeebrasives ezifanelekileyo, uburhabaxa bomphezulu bunokufikelela kwiRa0.1μm
Ukukhazimliswa kokwenziwa komngundo weplastiki kwahluke kakhulu kubume bepolishi obufunekayo kwamanye amashishini. Ukuthetha ngokuthe ngqo, ukupolisha kwesikhunta kufuneka kubizwe ngokuba yi-mirror processing. Ayinayo kuphela iimfuno eziphezulu zokuzipholisha kodwa kunye nemigangatho ephezulu yokukhanya komphezulu, ukuguda kunye nokuchaneka kwejometri. Ukupolishwa komphezulu ngokuqhelekileyo kufunwa kuphela ukufumana umphezulu oqaqambileyo
Umgangatho wokusetyenzwa kwesipili wahlulwe ngokwamanqanaba amane: AO=Ra0.008μm, A1=Ra0.016μm, A3=Ra0.032μm, A4=Ra0.063μm, kunzima ukulawula ngokuthe ngqo ukuchaneka kwejometri yamalungu ngenxa yokupholisha kwe-electrolytic. Nangona kunjalo, umgangatho womphezulu wokupholiswa kweekhemikhali, ukupolisha kwe-ultrasonic, ukugaya magnetic kunye neendlela zokupolisha azikwazi ukuhlangabezana iimfuno, ngoko ke ukusetyenzwa komphezulu wesipili sokungunda okuchanekileyo kusalawulwa ngumatshini wokupolisha.
Ixesha lokuposa: May-11-2022
