Nekushandiswa kwakakura kwezvigadzirwa zvepurasitiki, veruzhinji vane zvakakwirira uye zvepamusoro zvinodiwa pakuonekwa kwemhando yezvigadzirwa zvepurasitiki, saka kupenya kwepamusoro kwegomba repurasitiki kunofanirwa kuvandudzwawo zvinoenderana, kunyanya kushata kwepamusoro pegirazi uye kupenya kwepamusoro-kupenya kwepamusoro. Izvo zvinodikanwa zvakakwirira, uye naizvozvo zvinodiwa pakupenya zvakare zvakakwirira. Kupukuta hakungo wedzera kunaka kwechishandiso, asi zvakare kunonatsiridza kuramba kwecorrosion uye kupfeka kuramba kwechinhu chepamusoro, uye zvakare kunogona kufambisa inotevera jekiseni kuumba, sekuita kuti zvigadzirwa zvepurasitiki zvive nyore kudzikisa uye kuderedza kugadzirwa jekiseni kuumba kutenderera. Parizvino, nzira dzinowanzo shandiswa dzekupukuta ndedzinotevera:
(1) Mechanical polishing
Mechanical polishing inzira yekupukuta iyo nzvimbo yakatsetseka inowanikwa nekucheka uye nepurasitiki deformation pamusoro pechinhu chacho kubvisa iyo yakakwenenzverwa convex chikamu. Kazhinji, mitsetse yewhetstone, mavhiri emvere dzemakwai, sandpaper, nezvimwe zvinoshandiswa. Kushandisa maturusi ebetsero akadai sematurntable, ekupedzisira-chakatsetseka kugaya uye nzira dzekupukuta dzinogona kushandiswa kune avo vane yepamusoro yepamusoro zvinodiwa. Ultra-chaiyo kugaya uye kukwenenzverwa chinhu chakakosha abrasive chishandiso, icho chinotsikirirwa pamusoro pechigadzirwa chebasa kuti chigadzirwe mumichina yekukuya uye yekupukuta ine abrasive, uye inotenderera nekukurumidza. Uchishandisa tekinoroji iyi, kushata kwepamusoro kweRa0.008μm kunogona kuwanikwa, inova ndiyo yepamusoro-soro pakati penzira dzakasiyana dzekupolisha. Optical lens molds anowanzo shandisa nzira iyi
(2) Ultrasonic polishing
Iyo workpiece inoiswa mu abrasive suspension uye yakaiswa mumunda we ultrasonic pamwe chete, uye abrasive iri pasi uye yakasvibiswa pamusoro pebasa rekushanda ne oscillation ye ultrasonic wave. Iyo macroscopic simba re ultrasonic processing idiki, uye haizokonzeredze deformation yeworkpiece, asi yakaoma kugadzira uye kuisa iyo tooling. Ultrasonic machining inogona kusanganiswa nemakemikari kana electrochemical nzira. Pachikonzero chekugadzirisa corrosion uye electrolysis, ultrasonic vibration inoshandiswa kumutsa mhinduro, kuitira kuti zvigadzirwa zvakanyungudutswa pamusoro pebasa rekushanda zvivharwe, uye gorosi kana electrolyte pedyo nepamusoro yunifomu; iyo cavitation mhedzisiro ye ultrasonic waves mumvura inogonawo kuvharidzira iyo corrosion process, iyo inobatsira kupenya kwepamusoro.
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(3) Kukwenenzvera kwemvura
Fluid polishing inotsamira pane yakakwira-kumhanya inoyerera mvura uye twumabrasive particles anotakurwa nawo kukwesha pamusoro pechishandiso kuti chizadzise chinangwa chekupukuta. Nzira dzinowanzoshandiswa ndeidzi: abrasive jet machining, liquid jet machining, hydrodynamic grinding, etc. Hydrodynamic grinding inotungamirirwa ne hydraulic pressure, kuitira kuti mvura yepakati inotakura mabrasive particles inoyerera ichidzokorora pamusoro pebasa rekushanda nekukurumidza. Iyo yepakati inonyanya kugadzirwa neakakosha makomisheni (polymer-senge zvinhu) ine yakanaka kuyerera pasi pekumanikidzwa kwakaderera uye yakasanganiswa nemabrasives, uye mabrasives anogona kunge arisilicon carbide poda.
(4) Magnetic kugaya nekukwenenzvera
Magnetic grinding and polishing ndeye kushandisa magineti abrasives kugadzira mabhurashi anokwesha pasi pechiito chemagnetic field kukuya maworkpieces. Iyi nzira ine hukuru hwekugadzirisa, hutano hwakanaka, nyore kudzora mamiriro ekugadzirisa uye mamiriro akanaka ekushanda. Nemabrasives akakodzera, kushata kwepamusoro kunogona kusvika kuRa0.1μm
Iko kukwenenzverwa mupurasitiki mold processing kwakasiyana zvakanyanya kubva pakupenya kwepamusoro kunodiwa mune mamwe maindasitiri. Kunyatsotaura, kupenya kwe mold kunofanirwa kunzi girazi kugadzirisa. Haisi chete ine zvakakwirira zvinodikanwa zvekuzvipurudzira pachayo asiwo yakakwirira miyero yepasi flatness, kutsvedzerera uye geometric kunyatsoita. Kupenya kwepamusoro kunongodiwa chete kuti uwane nzvimbo inopenya
Chiyero chekugadzira girazi chakakamurwa kuita magiredhi mana: AO=Ra0.008μm, A1=Ra0.016μm, A3=Ra0.032μm, A4=Ra0.063μm, zvakaoma kunyatso kudzora kurongeka kwejometri yezvikamu nekuda kwekupenya kwe electrolytic. , fluid polishing nedzimwe nzira Zvisinei, kunaka kwepamusoro kwekemikari kupenya, ultrasonic polishing, magnetic grinding uye nzira dzekupukuta hazvigoni kusangana ne zvinodiwa, saka iyo girazi pamusoro pekugadzirisa kwechaiyo molds ichiri kutungamirwa ne mechanic polishing.
Nguva yekutumira: May-11-2022
