Micro investimendi yekukandira inopa chaiyo mambure-chimiro simbi zvikamu pasi pe50 magiramu-kazhinji akareruka se0.5 g-ine kushivirira kwakasimba kupfuura ± 0.05 mm uye inopera pasi kusvika kuRa 1.6 µm. Kana chigaro chako che hydraulic valve chichifanira kuvhara pa 420 bar, kana cobalt alloy pombi yako inopona 800 ° C inopisa bhasikoro uchiramba kukukurwa kubva kune abrasive slurry, micro investment casting haisi nyore. Ndiwo chete maitiro anobata geometry, chimiro chezviyo, uye chemistry mukuvhara kwese kwese.
Isu takagadzira anopfuura zviuru gumi nezvinomwe zvidiki-yakakandwa zvikamu kubva 2019-kunyanya AMS 5387 cobalt alloy nozzles, T800-based centre shaft rollers, uye simbi isina tsvina piston pombi dzimba dziri pasi pemakumi matatu nembiri mamirimita pakureba. Mubatch yega yega, tinoona chokwadi chimwechete: chiyero chekudyara mari chinokundikana pazasi pe10 g. Kuvimbika kweMold kunoparara. Wakisi patani yekukanganiswa inokwira pamusoro pe3%. Ceramic shell permeability inodonha. Metal fill inova isingafungidzike. Ndosaka "micro" isiri yehukuru chete - ndeye kugadziridzazve hurongwa hwese: kuumbwa kwewakisi, ganda rekuvaka kutevedzana, dewax kinetics, preheat ramp rates, uye vacuum-inobatsira kudurura kudzora.
Nhatu tekinoroji zvikumbaridzo zvinopatsanura chechokwadi micro investment casting kubva kuscaled-down kwakajairika kukanda. Chekutanga, maturusi epatani anofanira kumhanya pa ± 1.5 µm kudzokorora-kwete ± 5 µm. Isu tinoshandisa yakaomeswa P20 simbi molds ine electro-yakakwenenzverwa cavities uye tembiricha-yakagadzikana jekiseni zvikamu. Chechipiri, masisitimu emagomba anoda mashanu-layer ekuvaka: maviri ekugeza majasi ane submicron zircon, maviri epakati akaturikidzana ane fused silica, uye imwe yekupedzisira bhachi rekuumbwa rine inodzorwa particle kugovera. Chechitatu, kudira kunoda chaiyo-nguva yekunyungudutsa tembiricha yekutarisa mukati me ± 3 ° C- uye vacuum mazinga akabatwa pa 0.08-0.12 mbar panguva yekuzadza. Svetuka chero cheizvi, uye iwe unowana porosity masumbu padyo nemadziro akatetepa kana asina kukwana gedhi rekuzadza pazvinhu zviri pasi pe 0.8 mm mukobvu.
Vatengi vanowanzobvunza kuti: "Hatigone kungoita CNC-muchina icho chikamu panzvimbo?" Kune mamwe majeometri - hongu. Asi funga nezve AMS 5387 cobalt alloy plug ine 0.6 mm mudhuri, yemukati helical yekutonhodza chiteshi, nenzvimbo nhatu dzakasimba dzekuisa chisimbiso. Machining anorasa 82% yezvinhu zvakabikwa. Upenyu hwezvishandiso hunodonha kusvika kuzvikamu makumi mana nemanomwe pane imwe carbide inopinza. Uye kusara kwekushushikana kubva mukugaya kunoita kuti 12 µm uta mukurapa kwekupisa kwekupedzisira. Micro investment casting inotanga padyo-net shape. Isu tinobva taisa yakasarudzika 5-axis milling chete apo GD&T inoida iyo - senge yekuisa chisimbiso kana inokwirisa flange. Zvakaguma nei? 63% yakaderera mutengo wezvinhu, 4.2 × inokurumidza kutenderera nguva, uye zero njodzi ye micro-crack kuparadzira kubva kumachining-induced subsurface kukuvara.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yakavaka kugona kwayo kwekudyara kwekudyara kwakatenderedza zvinoshanda-zvakakosha zvikamu-kwete lab curiosities. Chese chikamu ngarava chine kuteedzera kuzere: nhamba yekupisa, wakisi yakawanda, goko rekuvaka rekodhi, duru rekodhi, uye CMM chirevo chakamisikidzwa kune ASME Y14.5 GD&T callouts. Isu tinosimbisa kugadzikana kwedimensional mumatatu matatu ekupisa (-40 ° C kusvika +250 ° C) tisati taburitswa. Kutendeseka kwepamusoro kunosimbiswa kuburikidza neSEM muchinjiko-zvikamu-kwete kungoona chete. Uye hongu-isu tinoyedza yega yega T800 alloy yekugovera chikamu checobalt tichishandisa EDS mepu, nekuti isingaenderane gamma-beta ratio inokanganisa zvakananga hupenyu hwekuneta muwinch centre shafts.
Micro investment casting inoshanda zvakanyanya kana yapetwa nedhizaini chirango. Dzivisa makona emukati akapinza-shandisa ≥0.3 mm radii. Chengetedza madziro ukobvu reshiyo pasi pe3: 1. Rondedzera dhizaini chete painoda kusaumbwa - 0.25 ° inokwana kune akawanda zircon shells. Uye usambozvitsaura zvinhu zvitete: zvibatanidze kune mizhinji nemafillet kana mbabvu dzinotsigira kusimba kwegoko panguva yedewax. Isu tinoongorora yega yega dhizaini yekukandwa tisati tataura. Mwedzi wapera, takaisa mureza 0.45 mm pasi pechigaro chevharuvhu yekumanikidza iyo ingadai yakatsemura ganda receramic panguva yedhivha. Kugadzira patsva kwakatora maawa maviri. Chengetedza mutengi mazuva gumi nerimwe uye $8,400 mumidziyo yakaraswa.
Izvi hazvisi zvekudzikira maitiro ekare. Izvo ndezvekuvaka zvitsva-layer by layer, micron by micron, lot by lot. Sezvo mapombi emumunda wemafuta anoda kudzvanywa, sezvo ma hydraulic masisitimu anoderera kuita nharembozha, uye sezvo cobalt-nickel alloys anosundira mu900 ° C sevhisi mahamvuropu, micro investment casting inochinja kubva niche kuenda kuzvinodiwa. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. inotarisa uko kunyatso kunosangana nemhedzisiro: zvikamu zvisingangokwane-asi zvinoshanda, zvinorarama, uye zvinodzokorora. micro investment casting inotanga zvishoma. Inopera apo kuvimbika kusingagone kutaurirana.
