Lapho abantu abaningi bezwa 'ukwenziwa kwepulasitiki okunembayo', babona ngeso lengqondo umshini we-CNC ukhala, mhlawumbe igumbi elihlanzekile, nezingxenye ezibukeka kahle. Leso isithombe sokumaketha. Iqiniso, lelo oyifundayo ngemva kokulahla i-PEEK ebiza amadola angamakhulu ambalwa noma ukubuka ingxenye ye-UHMWPE engabekezeleli isonto lonke ngemva kokulethwa, ukuthi ukunemba lapha kuningi mayelana nokusebenza kwengqondo njengoba kumayelana nokulinganiswa komshini. Ukuxoxisana phakathi kokuqina kwemfundiso yokusika insimbi kanye nemvelo eguquguqukayo, evame ukufutheka, yama-polymers. Izitolo eziningi ezikhazimulayo ngensimbi ziyakhubeka lapha, eziphatha ipulasitiki njenge-aluminiyamu ethambile, kulapho-ke izinkinga—kanye nokufunda kwangempela—ziqala khona.
I-Material Iwukuguquguquka Kokuqala, Hhayi Okuqhubekayo
Awukwazi ukulayisha nje uhlelo lwepulasitiki olujwayelekile. Wonke umndeni we-polymer uziphatha njengezinhlobo ezahlukene. Ukwenza imishini delrin (I-POM) iphupho—izinzile, iyabikezelwa, ama-chips kahle. Uthola umuzwa ongamanga wokulondeka. Bese ushintshela kokuthi inayiloni noma i-PTFE, futhi ngokuzumayo ulwa nokumuncwa komswakama kanye nokwanda okushisayo okuphakathi nendawo. Ingxenye oyikale kahle ebhentshini lomshini isiphelelwe yisikhathi ngemuva kwehora. Ngifunde lokhu kabuhlungu kusenesikhathi ngokulandelana kwe-POM bushings okwakudingeka ihlangane nezikhonkwane ezingenasici. Sishayele isipikili ukubekezelelana, kodwa iklayenti yabuya: the bushings were squeaking. Kungani? Besizifake ngomshini ngokuhlanzeka kakhulu, indawo engaphezulu ibibushelelezi kakhulu ukuthi ingakwazi ukuthambisa okuhlosiwe. Kwesinye isikhathi, kumapulasitiki, isiphetho esingaphezulu esilungile akusona esishelela kakhulu eshadini.
Yilapho isizinda sokucubungula okubanzi siba wusizo olukhulu. Thatha inkampani efana I-Qingdao Qiangsenyuan Technology Co., Ltd. (QSY). Eminyakeni engaphezu kwengu-30 ekubunjweni nasekukhiqizeni izinsimbi-ikakhulukazi izinto ezikhohlisayo njengama-alloys ane-nickel-basondela ezintweni ngenhlonipho ejulile yezakhiwo zemvelo. Lowo mqondo uyahumusha. Lapho bebamba ukunemba kwemishini yepulasitiki, akusiyo i-sideline; kuwukusetshenziswa kwaleyo sayensi yezinto ezibonakalayo eqinile. Ukwazi ukuphatha okokufaka kokushisa nengcindezi ku-superalloy kukunikeza unqenqema olunembile lokuphatha okufanayo kupulasitiki osebenza kakhulu njenge-PEEK, lapho ukucindezeleka okuyinsalela kuyisitha sokuqina kohlangothi.
Indlela yokupholisa iyisihibe sakudala. Ukupholisa izikhukhula? Imvamisa umqondo omubi wamapulasitiki amaningi e-hygroscopic. Iyakwazi ukungena futhi ibangele ukuvuvukala kamuva. Umoya ocindezelwe ungcono, kodwa kufanele ulawule ukuphuma kwe-static kanye ne-chip. Kwamanye amajiyometri, sithole imiphumela engcono kakhulu iqhamuke ekupholiseni inkungu elula, eqondisiwe enoketshezi olulungile lwe-dielectric, into esiyilungisile ngemva kokukhuluma nomenzi wesikhunta. Yilezi zimo ezincane zenqubo, ezingakaze zishiwo encwadini yomshini, ezichaza ukunemba kweqiniso.
Amathuluzi nokulungisa: Ubuciko obucashile bokugodla
Wonke umuntu ubheka kakhulu i-geometry yamathuluzi—ama-rake angles, i-helix yamapulasitiki, njll. Lokho kubalulekile, ngokuqinisekile. Kodwa ukulungiswa kulapho imisebenzi ihlala khona noma ifa. Bamba kanzima kakhulu ku-PC enezindonga ezincane noma ishubhu le-acrylic? Uzobona isigxivizo, noma okubi nakakhulu, udale iphuzu lokucindezeleka eliqhekeka kamuva. Ama-vacuum chuck mahle, kodwa kuma-prototype noma imigijimo enevolumu ephansi, uthola ubuciko. Sisebenzise imihlathi ethambile eyenziwe ngomshini kusuka ku-urethane ene-durometer ephansi, noma ukusetshenziswa kwamasu kwetheyiphu enezinhlangothi ezimbili ezingxenyeni ezincane, ezingenayo insimbi. Umgomo uwukubamba nje ngokwanele ukumelana namandla okusika, kodwa hhayi ukuwuhlanekezela. Kuwumuzwa owuthuthukisayo.
Ukugqoka kwamathuluzi kwenzeka ngendlela ehlukile, futhi. Ensimbi, ubona umhlaba ogugile ezinhlangothini. Kumapulastiki agcwale abrasive njengenayiloni egcwele ingilazi, unqenqema lokusika lungathola ukubukeka okupholishiwe, okucishe kube buthuntu isikhathi eside ngaphambi kokuthi kuphuke, futhi isiphetho sakho siwohloke buthule. Udinga ukulandelela lokhu ngengxenye yekhwalithi, hhayi nje ngemitha yehora. Sakha ilogu elula yezinto ezithile: Ingxenye 50 isheke le-surface Ra. Ibambe ngaphezu kwethuluzi elilodwa elilulazayo ngaphambi kokuba lonakalise inqwaba.
Lapho Ukunemba Kuhlangana Nezwe Langempela
Ikesi engihlala nginalo kwakuyiklayenti elalidinga i-PVDF encane, eyinkimbinkimbi yomshini wokuhlaziya amakhemikhali. Amaphrinti abiza u-±0.025mm kumabhore amaningana axhumayo. Siyifake ngomshini, sayilinganisa ku-CMM, futhi yayiphelele. Siyithumele ngomkhumbi. Kwehlulekile emhlanganweni wabo. Kungani? Babesebenzisa insimbi engenasici enentambo, futhi isenzo sokuyicindezela ikhiqize ukushisa okwanele kwendawo kanye nengcindezi ukuze kuhlanekezele ibhobo eseduze ngama-microns ambalwa—okwanele ukuqeda ukubekezelelana. Ukwenza kwethu ngokunemba kwakungenasici, kodwa asizange siphendule ngesinyathelo esilandelayo empilweni yengxenye.
Lokho kwehluleka kwaphoqa ushintsho lwenqubo. Ezingxenyeni ezilandelayo, sengeze isinyathelo sokuqeda ingcindezi ngemva komshini, bese kuba iphasi yokugcina yokukhanya. Yengeza izindleko nesikhathi, kodwa yaletha ingxenye eyahlala izinzile ensimini. Yilokho ungqimba olufihliwe lwe ukunemba kwemishini yepulasitiki: akusona nje isimo sengxenye uma iphuma esitolo, kodwa isimo sayo uma isisebenza. Lo mbono ophelele uyinto ovame ukuyibona ezitolo ezinefa ezingxenyeni ezibalulekile. QSY, ngokwesibonelo, nomlando wayo ekutshalweni kwezimali nasekukhiqizeni ama-alloys afunwayo, isetshenziswa ngokwesakhiwo ukucabanga ngokucutshungulwa, ukwelashwa kokushisa, nokusebenza kokugcina, hhayi nje isinyathelo sokuzihlukanisa sodwa.
Ibhuloho elisuka kuMetal kuya kuPlastiki
Kunombono oyiphutha wokuthi ukwenziwa kwepulasitiki kuyisinyathelo esisuka ensimbi. Akunjalo. Kuyithrekhi ehambisanayo enezinselelo zayo zezinga le-PhD. Eqinisweni, ubungcweti ezinsimbini ezinzima emshinini kungaba inzuzo enkulu. Isiyalo sokulawula ukudlidliza, ukushisa, nokuchezuka kwethuluzi uma u-Inconel wazisa ngokuqondile ukuthi usondela kanjani kunhlanganisela egcwele ingilazi. Umqondo wobunjiniyela benqubo phezu komshini olula ubalulekile.
Ngibheka amakhono enkampani efana QSY. Ukubunjwa kwesikhunta seShell, ukutshala imali, ukwenziwa kwe-CNC kwe-cobalt nama-nickel alloys—lezi yizinqubo ezifuna ukulawulwa ngokwedlulele. Ukusebenzisa lolo hlaka lokulawula olufanayo, lokho kuhlola okufanayo ezitifiketini zezinto ezibonakalayo kanye nemingcele yenqubo, kumapulasitiki yikho okuwuphakamisayo ukusuka ekwenzeni ingxenye elula kuye kothembekile. ukunemba kwemishini yepulasitiki. Kusho ukuqonda ukuthi ukuma kwesitoko (induku, ipuleti, okubunjiwe kungenalutho) kunomlando waso wengcindezi, ukuthi izinga lokushisa lendawo yesitolo libalulekile, nokuthi ukupakishwa kokuthunyelwa kungathinta umswakama.
Ekugcineni, Imayelana Nokulindela
Ngakho-ke, yini ongayenza ngemva kweminyaka yalokhu? Ukunemba akuyona nje inombolo ekuphrintiwe. Iwuhlelo. Iqala ngokulalela ngempela okubalulekile—ukwazi ukuthi inayiloni izomunca amanzi, leyo acetal inephuzu elincibilikayo eliphansi, i-PTFE izongena ngaphansi komthwalo. Iyaqhubeka nokuklama inqubo ehlonipha lezo zingqinamba, ngezindlela zamathuluzi ezehlisa ukushisa, izinto ezilungiswayo ezingahlanekezeli, kanye nezilinganiso ezithathwe endaweni ezinzile ngemva kokuba ingxenye isijwayelekile.
Iphetha, okubaluleke kakhulu, ngokulindela ukuthi yini eyenzekayo engxenyeni ngemva kokushiya ibhentshi lakho. Ingabe izohlanganiswa? Ingabe izobona imijikelezo yezinga lokushisa? Ingabe ingxenye yensimbi izofakwa kuyo? Lokho kubuka kancane kokugcina yikho okuhlukanisa umakhinikhi onekhono nozakwethu wangempela wokukhiqiza. Kungumehluko phakathi kokwenza ingxenye enembe ku-vacuum nokuletha ingxenye eqinisekisa ukuthi umugqa wokuhlanganisa weklayenti awumi, noma umkhiqizo wawo wokugcina awuhluleki. Yilowo umgomo wangempela, futhi ngokungananazi, ukuphela kwento ebalulekile. Imishini ingamathuluzi okufika lapho; ulwazi yilo olulwenza lunembe.
