Indlela yokuhombisa yeplastiki yokubumba
Ukugulisa oomatshini
Ukupholiswa koomatshini yindlela yokupolisha exhomekeke ekusikeni kunye nokuguqulwa kweplastiki kumphezulu wezinto eziphathekayo ukususa iindawo ezigudisiweyo zeconvex ukufumana umphezulu ogudileyo.Ngokuqhelekileyo, izinti zamatye e-oyile, amavili oboya, i-sandpaper, njl.Amalungu akhethekileyo afana nomphezulu womzimba ojikelezayo angasetyenziswa.Ukusebenzisa izixhobo ezincedisayo ezifana nee-turntables, i-ultra-precision polishing ingasetyenziselwa abo banemfuno zomgangatho ophezulu.I-Ultra-precision polishing kukusetyenziswa kwezixhobo ezikhethekileyo ze-abrasive, ezixinzelelwe ngokuqinileyo kwindawo esetyenzisiweyo ye-workpiece kwi-polishing fluid equkethe i-abrasives yokujikeleza kwesantya esiphezulu.Ukusebenzisa le teknoloji, uburhabaxa bomphezulu beRa0.008μm bunokufezekiswa, eyona nto iphezulu phakathi kweendlela ezahlukeneyo zokupolisha.Ii-lens ze-Optical molds zihlala zisebenzisa le ndlela.
Ukuguliswa kweekhemikhali
Ukupholiswa kwemichiza kukwenza umphezulu we-microscopic convex inxalenye yemathiriyeli kumbindi wekhemikhali inyibilike ngokukhethekayo kunenxalenye yeconcave, ukuze kufumaneke indawo egudileyo.Eyona nzuzo iphambili yale ndlela kukuba ayifuni izixhobo ezintsonkothileyo, inokupolisha izixhobo zokusebenza ezinemilo entsonkothileyo, kwaye inokupholisha uninzi lwemisebenzi ngaxeshanye, ngokusebenza okuphezulu.Ingxaki engundoqo yokupholisa imichiza kukulungiswa kolwelo lokupholisha.Uburhabaxa bomphezulu obufunyenwe ngokugudiswa kweekhemikhali ngokuqhelekileyo zii-10 μm ezininzi.
Electrolytic polishing
Umgaqo osisiseko we-electrolytic polishing iyafana naleyo yokupolisha kweekhemikhali, oko kukuthi, ngokukhetha ukunyibilikisa iiprotrusions ezincinci kumphezulu wezinto ukwenza umphezulu ube lula.Xa kuthelekiswa nokupholisa imichiza, umphumo we-cathode reaction unokupheliswa, kwaye umphumo ungcono.Inkqubo yokupolisha ye-electrochemical yahlulwe yangamanyathelo amabini: (1) Umgangatho we-macroscopic Iimveliso ezinyibilikisiweyo zisasazeka kwi-electrolyte, kwaye uburhabaxa bejometri bomphezulu wezinto buyancipha, iRa> 1μm.⑵ Umgangatho wokukhanya okuphantsi: I-anode polarization, ukukhanya komphezulu kuphuculwe, iRa<1μm.
Ukupholisha kwe-ultrasonic
Beka i-workpiece kwi-suspension abrasive kwaye uyibeke ndawonye kwintsimi ye-ultrasonic, uthembele kwimpembelelo ye-oscillation ye-ultrasonic, ukwenzela ukuba i-abrasive ibe ngumhlaba kwaye iphuculwe phezu kwendawo yokusebenza.I-ultrasonic machining ine-force encinci ye-macroscopic kwaye ayiyi kubangela i-deformation ye-workpiece, kodwa kunzima ukwenza kunye nokufaka izixhobo zokusebenza.Ukucutshungulwa kwe-ultrasonic kunokudibaniswa neekhemikhali okanye iindlela ze-electrochemical.Ngesiseko se-corrosion yesisombululo kunye ne-electrolysis, i-vibration ye-ultrasonic isetyenziselwa ukuvuselela isisombululo, ukwenzela ukuba iimveliso ezichithwe phezu kwendawo yokusebenza zihlulwe, kwaye i-corrosion okanye i-electrolyte kufuphi nomphezulu ifana;i-cavitation effect ye-ultrasonic kwi-liquid nayo inokuthintela inkqubo ye-corrosion kwaye iququzelele ukukhanya kwendawo.
Ukupholisha ulwelo
Ukupholishwa kolwelo kuxhomekeke kulwelo olubaleka ngesantya esiphezulu kunye namasuntswana abrasive athwalwa yiyo ukuhlamba umphezulu wesixhobo sokusebenza ukufezekisa injongo yokupolisha.Iindlela ezisetyenziswa ngokuqhelekileyo zezi: i-abrasive jet processing, i-liquid jet processing, i-hydrodynamic grinding kunye nokunye.Ukusila kweHydrodynamic kuqhutywa luxinzelelo lwehydraulic ukwenza ulwelo oluphakathi oluthwele amasuntswana abrasive aqukuqelele ngapha nangapha kumphezulu wendawo yokusebenza ngesantya esiphezulu.I-medium yenziwe ngokukodwa ngama-compounds akhethekileyo (izinto ezinjenge-polymer) kunye nokuhamba kakuhle phantsi koxinzelelo oluphantsi kwaye luxutywe kunye ne-abrasives.Iibrasives zingenziwa nge-silicon carbide powder.
Ukusila ngemagnethi kunye nokupholisha
Ukupholisha kwemagnetic abrasive kukusebenzisa iibrasives magnetic ukwenza iibrashi ezirhabaxa phantsi kwentshukumo yemagnethi yokusila iworkpiece.Le ndlela iphezulu yokusebenza kakuhle, umgangatho omhle, ulawulo olulula lweemeko zokucubungula kunye neemeko ezilungileyo zokusebenza.Ukusebenzisa iibrasives ezifanelekileyo, uburhabaxa bomphezulu bunokufikelela kwiRa0.1μm.I-2 I-polish ye-Mechanical esekelwe kule ndlela I-polishing ekhankanywe kwi-processing ye-molds ye-plastiki yahluke kakhulu kwi-face polishing efunekayo kwamanye amashishini.Ukuthetha ngokuthe ngqo, ukupolisha kwesikhunta kufuneka kubizwe ngokuba yi-mirror processing.Ayinayo kuphela imfuneko ephezulu yokuzipholisa ngokwayo, kodwa inemigangatho ephezulu yokukhanya komphezulu, ukugudisa kunye nokuchaneka kwejometri.Ukugulisa ubuso ngokubanzi kufuna kuphela umphezulu oqaqambileyo.Umgangatho wokulungiswa komphezulu wesipili wahlulwe ngamanqanaba amane: AO=Ra0.008μm, A1=Ra0.016μm, A3=Ra0.032μm, A4=Ra0.063μm.Kunzima ukulawula ngokuchanekileyo ukuchaneka kwejometri yamalungu ngenxa yeendlela ezinje nge-electrolytic polishing kunye nokupholisha ulwelo.Nangona kunjalo, umgangatho ongaphezulu we-chemical polishing, i-ultrasonic polishing, i-magnetic abrasive polishing kunye nezinye iindlela azikho kwiimfuno, ngoko ke ukulungiswa kwesibuko sokubumba okuchanekileyo kusekho i-polishing mechanical.
Ixesha lokuposa: Nov-27-2021