Ngokwe ngxelo yokulungiselela ngenaliti yokubumba: Phantsi kwengcinga yokuba imakethi yangoku iya isiba ngakumbi kwaye iyahluka, ishishini lenaliti yokubumba nayo ihlala ikhula kwaye isanda, kunye neetekhnoloji ezintsha ezinje ngemibala emininzi yokubumba inaliti, ukunceda igesi, ngaphakathi- ukubumba i-lamination, kunye nokubumba ngenaliti. Ngokufanayo, ukucaciswa koomatshini bokubumba inaliti kukwakhula kumacala amabini-amakhulu-amakhulu eetoni koomatshini bokubumba kunye noomatshini bokufaka inaliti abancinci bahlala behlaziywa.
Ukuphuhliswa kwetekhnoloji ye-micro-injection iyakhawuleza
Kwiminyaka yakutshanje, ibango leemveliso ezincinci zonyukile. Nokuba kwishishini le-elektroniki, kwishishini lewotshi okanye kwishishini lezomkhosi, kukho imfuno enkulu yenxalenye encinci yenaliti ebunjiweyo. Ezi mveliso zenaliti ebunjiweyo zineemfuno eziphezulu kakhulu kubungakanani kunye nokuchaneka.
Ngaphantsi kwesiseko, inkqubo ye-micro-injection nayo ijongene nemingeni emikhulu. Njani iindawo inaliti oluxonxiweyo ukuhlangabezana neemfuno ubungakanani-micron-level ngelixa imbonakalo elungileyo kunye nokusebenza? Koku kulandelayo, siza kwazisa ngokufutshane umahluko phakathi kokubumba ngenaliti encinci kunye nokubumbela ngenaliti ngokwendlela yokubumba, izixhobo, izixhobo kunye neenkqubo.
Ukulungiswa komngundo kunye namanqaku aphambili
Ngokwendlela yokubumba, inaliti encinci ifuna izixhobo zokulungisa eziphezulu kakhulu kunokubumba ngenaliti.
Inaliti yokubumba encinci ihlala ineendlela ezimbini ekusetyenzisweni komngundo: eyokuqala kukusebenzisa isipili ukwenza imishini. Ukuze kuqinisekiswe ukuchaneka okuphezulu, kungcono ukusebenzisa i-graphite electrode ze-EDM, kuba ukulahleka kwee-electrode ze-graphite kuphezulu kunezo-electrode zobhedu eziqhelekileyo. Incinci kakhulu.
Indlela yesibini yokuqhubekeka esetyenziswayo kukusebenzisa i-electroforming. Inkqubo ye-electroforming inokuqinisekisa ukuchaneka okuphezulu kakhulu, kodwa into engalunganga kukuba umjikelo wokulungisa umde, umngxunya ngamnye mawenziwe ngokuzimeleyo, kwaye ukuba kukho umonakalo omncinci kwimveliso, awunakulungiswa. , Inokuthi ithathe indawo yamanqaku awonakeleyo kuphela.
Ngokwendlela yokubumba, ubushushu besikhunta ikwindawo ebaluleke kakhulu ye-micro-injection. Xa ujongene nabathengi abaphezulu, indlela eqhelekileyo yangoku kukuboleka umxholo wokubumba inaliti ephezulu kwaye wazise inkqubo yokufudumeza nokupholisa ngokukhawuleza.
Kwithiyori, ubushushu obuphezulu besikhunta buluncedo kakhulu ngenaliti encinci, umzekelo, inokuthintela ubunzima obuzalisa udonga kunye nokunqongophala kwemathiriyeli, kodwa iqondo lobushushu eliphezulu kakhulu liya kuzisa iingxaki ezintsha, ezinje ngokunyusa umjikelo kunye nokuncipha kwesiphene emva kokuvulwa komngundo . Ke ngoko, kubaluleke kakhulu ukwazisa inkqubo entsha yolawulo lobushushu. Ngexesha lenkqubo yenaliti yokubumba, ubushushu besikhunta bunokunyuswa (obunokugqitha indawo yokunyibilika kweplastiki esetyenzisiweyo), ukuze unyibilike ngokukhawuleza uzalise umngxuma kwaye uthintele ubushushu bunyibilike ekunciphiseni ngexesha lokugcwalisa. Kuyakhawuleza kwaye kubangela ukugcwaliswa okungaphelelanga; yaye xa demolding, iqondo lobushushu sokubumbela kungancitshiswa ngokukhawuleza, igcinwe kwiqondo lobushushu asezantsi kancinane kune ubushushu deformation thermal zeplastikhi, kwaye ke ukungunda ivulwe kwaye kukhutshwa.
Ukongeza, kuba ukubumba ngenaliti encinci kuyimveliso enomgangatho weemiligram, ukuba inkqubo yesiqhelo esetyenziswayo isetyenziselwa ukutofa imveliso, kwanasemva kokuphuculwa kunye nokuphuculwa, umlinganiso wobunzima bemveliso kunye nezinto ezikhoyo kwinkqubo yokugaya isekhona. 1: 10. Ngaphantsi kuphela kwe-10% yezinto ezifakiweyo kwimveliso ezincinci, ukuvelisa isixa esikhulu senkqubo yokulinganisa, ngoko ke inaliti encinci kufuneka isebenzise inkqubo yokubaleka eshushu.
Izinto zokukhetha izinto
Ngokumalunga nokukhethwa kwezinto, kuyacetyiswa ukuba ezinye iiplastiki zobunjineli ezine-viscosity ephantsi kunye nozinzo olushushu lwe-thermal zinokukhethwa kwinqanaba lokuqala lophuhliso.
Ukukhethwa kwezinto ezisezantsi-viscosity kungenxa yokuba i-viscosity ye-melt iphantsi ngexesha lokuzalisa, ukuxhathisa yonke inkqubo yokugaya kuncinci, isantya sokugcwalisa ngokukhawuleza, kwaye i-melt ingazaliswa kakuhle kwi-cavity, kwaye iqondo lobushushu anyibilike akuyi kuncitshiswa kakhulu. Ngaphandle koko kulula ukwenza amalungu abandayo kwimveliso, kunye nokuqhelaniswa kwemolekyuli kuncinci ngexesha lokugcwaliswa, kwaye ukusebenza kwemveliso efunyenweyo kuyafana.
Ukuba ukhetha iplastiki ene-viscosity ephezulu, hayi kuphela ukuzaliswa kuhamba kancinci, kodwa nexesha lokutya lide. Ukuhamba kwe-shear okubangelwa kukondla kuya kulungelelanisa ngokulula iimolekyuli zekhonkco kwicala lokuhamba kwe shear. Kule meko, imeko yokuqhelaniswa iya kuba xa ipholile ngaphantsi kwendawo yokuthambisa. Kuyabanda, kwaye olu qhelaniso lukhenkcezisiweyo ukuya kuthi ga kwinqanaba elithile kulula ukwenza uxinzelelo lwangaphakathi kwimveliso, kwaye lubangele nokuqhekeka koxinzelelo okanye ukusonteka kwemveliso.
Isizathu sokuzinza okuhle kwe-plastiki kukuba izinto zihlala kwindawo yembaleki eshushu ixesha elide okanye zithotywa lula ngumoya kukucheba kwesikere, ngakumbi iiplastiki ezibuthathaka bubushushu, nokuba lixesha elifutshane lokujikeleza, ngenxa yenaliti yezinto Isixa sincinci, kwaye ixesha lokuhlala kwinkqubo yokulinganisa lide kakhulu, elibangela inqanaba lokuthotywa kweplastiki. Ke ngoko, iiplastiki ezibuthathaka kubushushu azikulungelanga ukwenza inaliti encinci.
Amanqaku okhetho lwezixhobo
Ngokumalunga nokukhethwa kwezixhobo, kuba ubungakanani bezinto ezifakwe ngaphakathi ziimveliso ezikwinqanaba le-micron, kuyacetyiswa ukuba usebenzise umatshini wenaliti enomthamo wenaliti yeemiligram.
Iyunithi yenaliti yolu hlobo lomatshini wenaliti yamkela ngokubanzi ukudityaniswa kwescrew-plunger. Isikulufa yinxalenye yeplastikhi yento, kwaye iplunger itofa inyibilikisi ngaphakathi kwisisu. Umatshini wokufaka isitofu seplunger ungadibanisa ukuchaneka okuphezulu kwesikrwe kunye nesantya esiphezulu sesixhobo seplunger ukuqinisekisa ukuchaneka kwenkqubo yemveliso kunye nesantya sokugcwalisa.
Ukongeza, olu hlobo lomatshini wenaliti luhlala luqulathe indlela yesikhokelo sokubamba, inkqubo yenaliti, indlela yokuhambisa umoya womoya, inkqubo yokuhlola umgangatho kunye nenkqubo yokupakisha ezenzekelayo. Inkqubo yokuhlola esemgangathweni inokuqinisekisa ukuveliswa kwemveliso ebunjiweyo yenaliti encinci kunye nokujonga ukuhla kweparameter kuyo yonke inkqubo.
Amanqaku aphambili kwinkqubo yokubumba
Okokugqibela, sijonga iimfuno zokubumba ngenaliti encinci ngokwemigaqo yokubumba ngenaliti. Kwinkqubo yokubumba inaliti, kufuneka siqwalasele uphawu lwegesi kunye noxinzelelo lwesango, ihlala inqanaba lokubumba inaliti iyafuneka ukuqinisekisa ukuba imathiriyeli inokugcwaliswa kwimeko yokuhamba okuzinzileyo.
Ukongeza, kuya kufuneka uthathele ingqalelo ixesha lokubamba. Uxinzelelo oluncinci kakhulu lokubamba luya kubangela ukuba imveliso inciphe, kodwa uxinzelelo olukhulu lokubamba luya kubangela uxinzelelo loxinzelelo kunye nemilinganiselo emikhulu.
Ukongeza, ixesha lokuhlala kwezinto ezikhoyo kumbhobho wezinto kufuneka zijongwe ngokungqongqo. Ukuba izinto zihlala kwityhubhu yezinto ixesha elide, ziya kubangela ukuthotywa kwezinto kwaye zichaphazele umsebenzi wemveliso. Kuyacetyiswa ukuba kwenziwe ulawulo lomgangatho oqhelekileyo kwinkqubo yolawulo lweparameter. Kungcono ukwenza uqinisekiso lwe-DOE kwimveliso nganye ngaphambi kwemveliso emininzi. Lonke utshintsho kwimveliso kufuneka luvavanywe kwakhona kubungakanani kunye nokusebenza.
Njengoko isebe intsimi ziphene sukube, micro-ziphene ikhula kwicala ngokuchaneka mbono eliphezulu, iimfuno eziphezulu zokusebenza, kunye neemfuno imbonakalo eliphezulu. Kuphela kungalawulwa ngokungqongqo ngumngundo, izixhobo, izixhobo, iinkqubo kunye nezinye iinkqubo kunye nokuphuculwa okuqhubekayo kwetekhnoloji apho intengiso inokwaneliseka. Uphuhliso lwentsimi. (Eli nqaku lelokuqala ngokubumba ngenaliti, nceda ubonise umthombo wokuprinta kwakhona!)
