Lapho abantu abaningi bezwa 'izingxenye ezikhethekile zengxubevange,' bacabanga ngeshidi le-spec: Inconel 718, Hastelloy X, CoCrMo, namandla abo ahlaba umxhwele kanye nezinombolo zokumelana nokugqwala. Yilokho iphimbo lokumaketha. Iqiniso esitezi sesitolo, ikakhulukazi ekutshalweni kwezimali okuyinkimbinkimbi kanye nokwenza imishini elandelayo, kuyisilo esihlukile. Igebe phakathi kwesitifiketi sempahla ephelele kanye nengxenye esebenzayo, enokwethenjelwa yilapho kwenzeka khona umsebenzi wangempela. Akukhona nje ngokuba nengxubevange; imayelana nokuqonda ukuthi kwenzekani kuyo kusukela esimweni esincibilikisiwe kuya engxenyeni ephelile.
Okukhethekile Kuma-Special Alloys Akuyona Nje I-Chemistry
Thatha isicelo esivamile: ingxenye ye-alloy esekelwe ku-nickel ephezulu yohlelo lokusebenza lwe-turbine. Iklayenti lihlinzeka nge-AMS spec. Yilokho umugqa wokuqala, hhayi isiphetho. Imvelo 'ekhethekile' iqala ngokufuna. Akuwona wonke ama-alloys ayinhloko noma izinto ezincibilikisiwe ezingasebenzi ngendlela efanayo. Landela izakhi, inqubo eqondile yokuncibilika nokucwengisiswa emshinini wokugaywa—lezi zithonya ngobuqili ukugaywa, futhi kamuva, amandla okwenza izinto. Sifunde ukufaneleka imithombo yethu yezinto ezibonakalayo hhayi nje ngamaphepha, kodwa ngokulingisa okuncane. I-Inconel 625 yomphakeli ingase ithele ngokuhlukile kuneyomunye, ithinte ukugcwaliswa kwesikhunta kanye nobuqotho bokugcina ezigabeni ezincane.
Yilapho kusebenza khona isikhathi eside. Inkampani efana I-Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), neminyaka engamashumi amathathu ekulingiseni nasekukhiqizeni imishini, cishe ibone izinguquko eziningi zemithombo phakathi neminyaka. Leyo nkumbulo yesikhungo ibalulekile. Wakha umtapo wezincwadi zengqondo: Umthombo A's 316L muhle kumavalvu amakhulu, kodwa ekubunjweni kwegobolondo okuyinkimbinkimbi kobumo obuncane, obuyinkimbinkimbi, ukushisa koMthombo B kunoketshezi olungcono. Lokhu akukho kunoma yiliphi ishidi ledatha.
Inqubo yokulingisa ngokwayo—kungakhathaliseki ukuthi isikhunta sabo esikhethekile noma ukutshala imali—ibeka 'ukuguqulwa kwe-alloy' yayo. Amandla okushisa ngesikhathi sokuqina adala i-microstructure. Ngokushesha kakhulu, futhi ubeka engcupheni i-micro-porosity; kancane kakhulu, futhi ukukhula okusanhlamvu kungenza ingxenye ibe buthaka. Kuma-alloys akhethekile, iwindi lemingcele elungile livame ukuba lincane. Ukwelashwa kokushisa kwangemva kokusakazwa akuxoxiswana, hhayi inketho, ukuze kudambise izingcindezi futhi kuzuzwe isakhiwo sesigaba esiklanyelwe. Ukwenza lokhu kungalungile kungenza ingxenye ye-alloy ibe brittle.
Imishini: Lapho Ithiyori Ihlangana Neqiniso
Umthobi omkhulu lo. Unengxenye yengxubevange ye-cobalt-chromium esakazwe kahle. I-chemistry iphelele, i-X-ray ihlanzekile. Manje udinga ukuyibeka emshinini we-CNC ukuze uzuze ukubhoboza okubekezelela ngokuqinile kanye nokuqedwa kwendawo. Yilapho amaphrojekthi amaningi abhekana nezindleko ezingalindelekile nokubambezeleka.
Ama-alloys akhethekile asebenza kanzima. Ithuluzi lokusika elingabaza, ngisho nomzuzwana nje, lingakha isendlalelo esingaphezulu esiqinile kunethuluzi ngokwalo. Simoshe izinto ezifakiwe ezibizayo ngamaminithi sifunda lokhu. Ukupholisa akukhona nje ukupholisa; imayelana nokuvimbela lokhu kuqina komsebenzi kanye nokuqinisekisa ukukhishwa kwe-chip. Ukucindezela okupholisayo okungalungile noma uhlobo kungaholela ekushiseleleni kabusha kwe-chip. Amasu omshini walezi zinto ezisetshenziswayo ayavikela: ukusikeka okungaguquki, okunolaka ukuze ungene ngaphansi kongqimba oluqinile lomsebenzi ukusuka kuphasi yangaphambilini, kunokuskimming okulula, okuqaphelayo.
Ukuhlelwa kwendlela yamathuluzi kudinga ukubhekelela ukucindezelwa okuyinsalela kwengxenye. Kwesinye isikhathi, lapho uqinisa futhi umshini ohlangothini olulodwa, ingxenye ihamba kancane njengoba izingcindezi zangaphakathi zilingana. Kuyakhungathekisa. Ungase ubambelele ekuhlinzeni kokuqala, ukuze uthole ukuhlanekezela ngemva kokukhipha izintambo. Lokhu kuvame ukuholela ekulandelaneni komshini onolaka, umjikelezo wokudambisa ingcindezi, bese uqeda ukwenza imishini. Akuwona umzila oshesha kakhulu, kodwa uthembekile. Ukuhlanganiswa kwabo CNC imishini ikhono libalulekile lapha—ukuba nokusakaza nokwenza umsebenzi ngaphansi kophahla olulodwa kuvumela le nqubo ephindaphindwayo, eqhutshwa yimpendulo ngaphandle kwegeyimu esolwayo phakathi kwabathengisi abahlukene.
Amaphuzu Okwehluleka Nokuyekethisa Okucashile
Akuzona zonke izindaba eziyimpumelelo. Ekuqaleni, saba nephrojekthi yengxenye ye-nickel alloy ekwazi ukumelana nokugqwala yemboni yamakhemikhali. Iphumelele zonke izivivinyo ezijwayelekile. Kodwa enkonzweni yasensimini, yehlulekile ngenxa yokuqhekeka kokugqwala kwe-stress ku-geometry ethile esingazange siyibheke njenge-hotspot. Siyini isifundo? Imvelo iyikho konke. 'Ingxubevange ekhethekile' ikhethekile kuphela ezimweni ezithile. Manje sichitha isikhathi esiningi sixoxa ngendawo yokusebenza—isilinganiso samakhemikhali esiqondile, amazinga okushisa, ukulayisha okujikelezayo—njengoba senza ingxenye yokuphrinta.
Okunye ukuvumelana okuvamile kuphakathi kwe-design idealism kanye nokwenza. Umklami angase acacise izindonga ezinsingo ezacile nama-engeli angaphakathi aqinile kungxubevange yensimbi engagqwali ukuze kongiwe isisindo. Kodwa ingabe insimbi encibilikisiwe ingasigcwalisa leso sigaba ngaphandle kokugodola ngaphambi kwesikhathi? Ingabe ithuluzi lingafinyelela kuleyo engeli yangaphakathi ukuze lisetshenziswe ngomshini noma lihlolwe? Kwesinye isikhathi, okokufaka okubaluleke kakhulu kuphakamisa i-tweak yedizayini encane—ukukhuphuka kwerediyasi ngo-0.5mm, ukulungiswa kwe-engeli okusalungiswa—okwenza ingxenye ikhiqizeke ngaphandle kokufaka engozini umsebenzi. Lokhu ukusebenzisana okusebenzayo okuchaza impumelelo.
Ukuqinisekiswa kwekhwalithi nakho kuba nzima nakakhulu. Ukuhlola ukungena kodayi kujwayelekile, kodwa ezingxenyeni ezibalulekile ezinobuqotho obuphezulu, sivamise ukuphushela okwengeziwe. Isibonelo, i-radiography ukuhlola ukuqina kwangaphakathi ezigabeni ezibalulekile zokusakaza. Yengeza izindleko nesikhathi, kodwa ukweqa kuwukugembula. Isinqumo sincike emsebenzini wengxenye. Ingabe i-structural load- bearer noma yindlu engabalulekile? Igama elithi 'izingxenye ezikhethekile ze-alloy' kusho umsebenzi ongaphezu kokujwayelekile, ngakho-ke amaphrothokholi ethu okuhlola ngokuvamile adinga ukufana nalokho okushiwoyo.
Inzuzo Ehlanganisiwe: Ukusuka ku-Melt kuya kumshini
Yingakho imodeli ye-Foundry enemishini yasendlini, njengale echazwe kuyo https://www.tsingtaocnc.com, kunengqondo ngalezi zinto. Iluphu yokufunda iqinile. Ithimba lemishini lingatshela ithimba elilingisayo ngokuqondile, Leli qoqo lezingxenye libe nezindawo eziqinile lapha, okwenza ukugqokwa kwamathuluzi kudlulele. Ithimba labalingisi lingabe seliphenya: bekuwukuhluka okuncane kwezinga lokushisa lokuthela? Ukuguqulwa kwesistimu yokugenca? Le mpendulo iyigolide.
Iphinde ivumele ukuthuthukiswa kwenqubo ehlanganisiwe. Isibonelo, ukunquma ukuthi singakanani isitoko esizosishiya ukuze kwenziwe imishini. Kakhulu, futhi umosha ingxubevange ebizayo nesikhathi sokwenza imishini. Kuncane kakhulu, futhi ukushintsha kancane kokulingisa noma ukungapheleli kwendawo kusho ukuthi ingxenye ayikwazi ukuhlanzwa ifike kubukhulu. Ukuba nawo womabili amaqembu ngaphansi kophahla olulodwa kukuvumela ukuthi unqume ngokunamandla ukuvunyelwa okuphelele kwengxenye ethile yejometri nealloy.
Ngaphezu kwalokho, ukuphatha kuba ukukhathazeka. Izingxenye ezikhethekile ze-alloy, post-casting naphakathi kwama-machining ops, ngokuvamile zibalulekile futhi zizwela. Ukuzigcina endaweni elawulwayo, ukuzilandelela eduze, kanye nokunciphisa izinto zokuhamba kunciphisa ubungozi bokuhlangana, ukulimala, noma ukungcoliswa. Isikhungo esihlanganisiwe senza lolu chungechunge lwempahla lube lula kakhulu.
Ukubheka Phambili: Kusewubuciko
Naphezu kwayo yonke intuthuko yesofthiwe yokulingisa yokusakaza (efana ne-MAGMA) kanye nohlelo lwe-CNC, ukukhiqiza izingxenye ze-alloy ezikhethekile ezisezingeni eliphezulu kuhlala kuwumsebenzi wezandla onolwazi olunzulu. Isofthiwe ikunikeza indawo okungenzeka ukuthi iqale ngayo, kodwa ingcweti—unjiniyela womsunguli, umakhi wemishini—wenza izinguquko zokugcina ngokusekelwe ekuboneni, kumsindo, nomuzwa. Indlela insimbi ethela ngayo, umbala we-chip ngesikhathi somshini, umsindo wokusika.
Ikusasa, ngicabanga, lilele ekuthatheni olunye ulwazi lwalolu lwazi. Kodwa okwamanje, ihlala kubantu kanye nezinqubo zezikhungo zamafemu eziye zadlula emijikelezweni, njengomsebenzi oneminyaka engama-30 ubudala. Baye bazulazula lapho beshoda khona, bajwayela amamaki amasha engxubevange, futhi batshala imali kubuchwepheshe obufanele be-CNC ukuze banqamule.
Ngakho, lapho uhlola umthombo we izingxenye ezikhethekile ze-alloy, bheka ngale kohlu lwezinto ezibonakalayo nendawo yokupaka izimoto. Bheka ubufakazi balo mcabango ohlangene, oxazulula izinkinga. Buza mayelana nephrojekthi eyinselele abayiqedile. Impendulo izokutshela okuningi kakhulu kunencwajana ecwebezelayo eyake yakwazi. Umkhiqizo wangempela awuyona nje ingxenye yengxubevange; wulwazi olusetshenziswayo oluqinisekisa ukuthi ingxenye isebenza ngendlela ehlosiwe, enokwethenjelwa, lapho ibalulekile khona.
