Uzwa 'izingxenye ze-alloy ezisekelwe ku-cobalt' futhi ngokushesha ucabange 'izinga eliphezulu,' 'i-aerospace,' 'izimila zezokwelapha.' Lokho akulona iphutha, kodwa isithombe esingaphelele. Iqiniso ku-Foundry nesitolo semishini limbi kakhulu, ligcwele ukuyekethisa nokuziphatha okungalindelekile amashidi wedatha angakulungiseleli ngaso sonke isikhathi. Kunombono oyiphutha ovamile wokuthi ngenxa yokuthi 'iyi-superalloy,' ithethelela ukulawulwa kwenqubo okungalungile. Ngokuhlangenwe nakho kwami, kuphambene ncamashi; idinga ukuqina okwengeziwe, hhayi okuncane, futhi ijezisa ukucabanga ngonya.
Ingxubevange Akuyona Nje Ingxubevange
Uma sicaphuna umsebenzi, ake sithi, ingxenye ye-turbine seal in ingxubevange ye-cobalt, impi yokuqala ngokuvamile iwukuthola izinto ezibonakalayo. Akuwona wonke amabanga e-Co-Cr-W noma e-Co-Cr-Mo adalwe alingana, ngisho nangaphansi kwe-AMS efanayo noma i-ASTM spec. Landela izakhi ezivela ekuncibilikeni okuhlukile, ukwakheka okusanhlamvu kwesitoko sebha noma izinto ezibuyisela emuva—lokhu kushintsha ngobuqili amandla okwenza izinto futhi, ngokubaluleke kakhulu, impendulo yengcindezi ngesikhathi sokutshala imali. Lokhu sakufunda kabuhlungu eminyakeni edlule ngokulandelana kwemibhobho evuthayo. Ikhemistri 'yayicacisiwe,' kodwa izingxenye zakha imifantu emincane ngesikhathi sokukhishwa kwegobolondo ngemva kokusakazwa. Umlandu? Okuqukethwe kwe-silicon okungabhalansi kancane okuvela kumnikezeli omusha okuthinte ukungezwani kwezinyembezi ezishisayo. I-spec yayiyisango elibanzi, futhi sangena kuyo.
Kulapho ubudlelwano besikhathi eside nabahlinzeki bempahla abahlonishwayo bungaba yinto engaxoxiswana khona. Kuncane mayelana nesitifiketi nokunye okwengeziwe mayelana nokuvumelana kwe-batch-to-batch. Enkampanini efana ne-Qingdao Qiangsenyuan Technology (QSY), enamashumi amathathu eminyaka ekulingiseni nasekukhiqizeni imishini, esungula ukuthi i-supply chain trust ibe yingxenye eyinhloko yokusebenza. Awukwazi ukwakha ukwethembeka kusitoko esiphakelayo esingaguquki. Umsebenzi wabo ngaphesheya izingxenye ze-alloy ezisekelwe ku-cobalt, ama-nickel alloys, nezinsimbi ezikhethekile kusho ukuthi babone lezi zinhlobonhlobo zezinto zidlala ngokuphindaphindiwe, okulolonga ifilosofi yabo yokuthenga.
Esinye isendlalelo 'ifomu' le-alloy. Siqala nge virgin bar for machining? Usebenzisa ukubuyisela esithandweni sethu sokungeniswa ukuze utshale imali? Noma ukuphatha izingxenye ze-precision-cast ezithunyelwe kithi ukuze ziqedelwe imishini? Indlela ngayinye inesethi ehlukile yezinselele. Umlingisi ingxube ye-cobalt ingxenye izoba nesimo esihlukile sokucindezeleka kwangaphakathi kanye nokufakwa okungenzeka uma kuqhathaniswa ne-billet eyenziwe. Uhlelo lwakho lwe-CNC kanye neqhinga lendlela yamathuluzi kufanele kuhambisane nalokho kuhluka kusukela ekusikeni kokuqala.
Ukusakaza Kokutshalwa Kwezimali: Lapho Kwenzeka Khona Umlingo Nezinhlungu Zekhanda
Isikhunta se-Shell kanye nokutshala imali kuyisinyathelo esiyinkimbinkimbi, esiseduze ne-net-shape izingxenye ze-alloy ezisekelwe ku-cobalt. Ukuzinza kwe-dimensional nokuqedwa kwendawo kuhle kakhulu, kodwa iwindi lenqubo lincane. Ama-cobalt alloys anamaphuzu aphezulu okuncibilika futhi avame ukungahambi kahle ngokushisa okushisayo. Lokhu kuholela ekukhuphukeni okushisayo okushisayo ngesikhathi sokuqina. Uma i-gate yakho nesistimu yokukhuphuka ingaklanywanga kahle—futhi ngiqonde kahle kuleyo ngxenye ethile yejometri—uzothola ukushwabana kwe-porosity noma izindawo ezishisayo eziba yizindawo zokuqalisa ukuqhekeka.
Sake sachitha amasonto sizama ukuqeda i-porosity ku-flange ewugqinsi yengxenye ye-valve. Ishidi ledatha lithe ukusakazwa okuhle. Isango lethu lokuqala lalilandela imithetho evamile yensimbi. Yehlulekile. Kwadingeka sithuthele endleleni enolaka, neshisa kakhulu ukuze sigcine uketshezi lwensimbi lude kuleyo ngxenye, okwakungase kube sengozini yokuguguleka kwesikhunta. Bekuyisenzo sokulinganisa esaxazululwa ngezivivinyo eziphindaphindayo, hhayi ithiyori yezincwadi. Lena i-R&D engeyinhle eyenzeka esitezi sesitolo.
Ngemuva kokuphonswa, ukususwa kwegobolondo kubalulekile. Lawa ma-alloys asebenza kanzima kakhulu. Uma unolaka kakhulu ngokungqongqoza komshini, ungadala ukucindezelwa kwendawo okuthi ngokuhamba kwesikhathi kuhlanganyele nezingcindezi zomshini, okuholela ekuhlanekeni. Sivame ukusebenzisa inhlanganisela yokudlidliza kanye nokushaqeka okushisayo okucophelelayo. Noma kunjalo, awuqiniseki kuze kube yilapho ingxenye yokuqala ihamba ku-CMM. Lesi sigaba sidinga isineke esiphikisana nezingcindezi zeshejuli yokukhiqiza.
Imishini: Ubuciko Bokuhlukumeza Okulawulwayo
Ukwenza imishini izingxenye ze-alloy ezisekelwe ku-cobalt kulapho impilo yethuluzi lethiyori ihlangana khona namaqiniso. Lezi zinto zigcina amandla aphezulu emazingeni okushisa aphakeme, okusho ukuthi 'azithambisi' ekugcineni. Esikhundleni salokho, bayakweqa futhi basebenze-lukhuni indawo ozama ukuyisika. Isihluthulelo siwukugcina ukusebenzelana okungaguquki, okulungile ngamathuluzi abukhali, akhethekile—amabanga e-carbide adizayinelwe ama-alloys asezingeni eliphezulu, anezingubo ezithile ezifana ne-AlTiN.
Iphutha lakudala ukwehlisa izilinganiso zokuphakelayo ukuze 'kuphephe.' Lokhu kuvame ukwenza izinto zibe zimbi kakhulu, kubangele ukuthi ithuluzi lihlikihle esikhundleni sokugunda, kukhiqize ukushisa okwengeziwe futhi kusheshise ukuqina komsebenzi. Kudingeka ube nolaka ngaphakathi kwemingcele efanele. Ukupholisa enye inkulumo-mpikiswano. I-high-pressure, through-tool coolant cishe iyadingeka ukuze kukhishwe ama-chips nokulawula ukushisa, kodwa ukulethwa kufanele kungabi nasici. Noma yikuphi ukuphazamiseka kuholela ekuhlulekeni kwethuluzi ngokushesha. Ngibone isigayo esingu-$200 sicekeleke phansi ngemizuzwana ngoba ulayini wokupholisa uthole i-kink encane.
Ukulungisa kuyingxenye yempi. Ngenxa yamandla amakhulu okusika kanye nokucindezeleka okusele okuvela ekubunjweni, izingxenye zinganyakaza. Udinga ukulungiswa okuqinile, okuvamise ukwenziwa ngokwezifiso, okusekela ingxenye ngaphandle kokucindezela izingcindezi ezizovela kamuva. Ngefomu lempande ye-turbine blade eyinkimbinkimbi, singase sichithe isikhathi esiningi sidizayina futhi sifakazela ukulungiswa njengohlelo lomshini ngokwalo. Akuvamile ukuthi kube ne-athikili yokuqala egijima lapho ingxenye iphelele khona kodwa ibhajwe unomphela ku-fixture ngoba ubuke phansi amandla okuphoqa adingekayo ukuze kuvinjelwe ingxoxo.
Izindlela Zokusebenza Zomhlaba Wangempela Nezokwehluleka
Iningi lalezi zingxenye azihlali nje eshalofini; basezindaweni ezijezisayo. Cabanga ngamavalvu okukhipha umoya ezinjinini ezisebenza kahle kakhulu noma amaphedi okugqoka emishini yokucubungula amakhemikhali. Imodi yokwehluleka esivame ukuzama ukuyivimba ayikona ukuphuka okuyinhlekelele, kodwa ukuwohloka kancane kancane okufana ne-high-temperature oxidation, i-sulfid, noma ukuguga okukhathazayo.
Ngikhumbula icala neklayenti elalidinga iziqondiso ezingagugi zolayini oshisayo wokubumba. Baqale basebenzisa insimbi yensimbi eqinile, eyahluleka ngokushesha. Siphakamise a ingxubevange ye-cobalt njenge-Stellite 6 ngobulukhuni bayo obushisayo nokumelana ne-galling. Izingxenye zasebenza kahle, kodwa ngemva kwezinyanga eziyisithupha, zabonisa ukuqhekeka okungalindelekile. Imbangela? Umjikelezo wokusebenza wawuhilela ukucisha ngokushesha izinga lokushisa eliphezulu, ebesingalazi ngokugcwele. Ukushaqeka okushisayo kudale ingcindezi, okuhlanganiswe nengxubevange yemvelo ephansi ye-ductility emazingeni okushisa aphansi, kubangele imifantu yokukhathala. Isixazululo bekungelona ushintsho olubalulekile, kodwa i-tweak yedizayini yokwengeza izici zokusiza ukuze ulawule ukugxiliswa kwengcindezi. Kwakuyisifundo sokubheka ngale kwezakhiwo zedatha yedatha ekuhlanganyeleni okugcwele kwesistimu.
Lapha yilapho okuhlangenwe nakho komqambi kuwo wonke ama-alloys ahlukene kukhokha khona. Isitolo esisebenze kakhulu ngezinsimbi ezingagqwali zokugqwala kanye ama-alloys asekelwe ku-cobalt kokuguga kuthuthukisa umuzwa walokhu kushintshaniswa kwemodi yokwehluleka. Bangabuza imibuzo efanele mayelana nendawo yokusebenza umklami angase angacabangi ukuyicacisa.
Ibhizinisi Lokwenza: Ukuvumelana Ngaphezu Kwe-Hype
Ekugcineni, ukukhiqiza okuthembekile izingxenye ze-alloy ezisekelwe ku-cobalt akukhona ngokuba nomshini we-5-eksisi ocwebezelayo (yize lokho kusiza). Imayelana nokulawulwa kwenqubo nolwazi lwesikhungo. Kumayelana nokubhala phansi lokho okusebenzile futhi, okubaluleke nakakhulu, okungazange kwenzeke emsebenzini wokugcina ofanayo. Imayelana nokuba nama-metallurgists angafunda indawo ephukile kanye nochwepheshe bemishini abakwazi ukulalela umsindo wokusikwa bazi ukuthi akulungile.
Izinkampani ezihlala kule niche, njenge-QSY (Qingdao Qiangsenyuan Technology), ngokuvamile babe nalokho kujula. Umlando wabo weminyaka engama-30 ekubunjweni kwamagobolondo kanye nokutshala imali, kuhlanganiswe nemishini ye-CNC yangaphakathi, uphakamisa ukuthi bafake lezi zifundo ngaphakathi. Abagcini ngokuthengisa ingxenye ethile; bathengisa ikhono lokuzulazula kulo lonke uhambo ukusuka kunsimbi encibilikisiwe ukuya engxenyeni eqediwe, enembayo ezosinda ekusetshenzisweni okunzima kakhulu. Kumthengi, lokho kulawula kokuphela ukuya ekupheleni ngokuvamile kubaluleke kakhulu kunokonga izindleko ezilinganiselwe, njengoba kunciphisa ingcuphe yokwehluleka kwensimu okuyinhlekelele, okubizayo.
Imakethe yalezi zingxenye iyakhula, ikakhulukazi kumandla kanye nemishini ekhethekile yezimboni. Kodwa isithiyo sokungena siphezulu. Akulona ibhizinisi lempahla. Impumelelo incike ekuhlonipheni ubuntu bezinto ezibonakalayo, ukutshala imali kubantu abalungile nezinqubo, kanye nokuqonda ukuthi kwesinye isikhathi, ikhambi elingcono kakhulu libandakanya ukukhuluma nekhasimende ingxube ye-cobalt futhi ibe insimbi engagqwali yezinga eliphezulu ezokwenza ngokwanele ngengxenyana yezindleko kanye nekhanda elibuhlungu. Ukwazi ukuthi ungayisebenzisi nini kubalulekile njengokwazi ukuthi yenziwa kanjani.
