Xa iinjineli zidinga iindawo zentsimbi ezichanekileyo ezisindayo kwimijikelo ye-psi hydraulic eyi-30,000 okanye i-650 ° C yokuphuma kwerhasi ephumayo, aziqali nge-generic foundry. Baqala nge umzi-mveliso weenkonzo zokugalela umthwebeba ezilahlekileyo ephatha i-cobalt alloy nozzles njengezixhobo zotyando-kwaye iyazi kakuhle indlela i-AMS 5387 ye-grain structure isabela ngayo kwi-thermal shock ngexesha le-dewaxing.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ngomnye umzi-mveliso onjalo. Hayi umrhwebi. Hayi inkampani yorhwebo. Ukusebenza ngezandla, okuhambelana ne-ISO eQingdao apho ii-metallurgists zihlengahlengisa i-slurry viscosity esekwe kubumanzi obukuyo-kunye noomatshini baphinda-zero zero i-axis spindles emihlanu phambi kokusika i-T800 cobalt-based shafts kwiinkqubo zewinch zaselwandle. Sibone abathengi bephulukana neeveki ezintathu kunye ne-18,000 yeedola ekusebenzeni kwakhona kuba umthengisi wabo wangaphambili weqa ukuqinisekiswa kwangaphambili kwe-GD&T. Kwesi sibonelelo, umngcipheko we-dimensional ubanjwa ngaphambi kokuba ipateni yokuqala ye-wax iqine.
Inkqubo yabo yokulahla i-wax elahlekileyo ayisiyonto nje "yokwenza utyalo-mali." Yinkqubo edityaniswe ngokuqinileyo: ukulandeleka kwemathiriyeli ekrwada eqinisekisiweyo → ukwakheka kweqokobhe leceramic elungiselelwe ukwandiswa kwe-thermal yealloyi ephezulu → amazinga erempu athotywayo alawulwayo → ukugalelwa kwevacuum-uncedo lwe-superalloy ku-±5°C ukunyamezela → isiqabu sasemva kokuphoswa koxinzelelo olulinganiswe kwi-AMS 2750E standards. Kwiivalvu zoxinzelelo okanye i-piston pump cylinder housings, oko kuthetha ukuba ukuguquguquka kobunzima bodonga kuhlala ngaphantsi kwe-± 0.15 mm-nakwi-420 mm OD castings kunye nemijelo yokupholisa yangaphakathi. Akukho ngqikelelo. Akukho batch-to-batch drift. Yonke indawo yobushushu ineengxelo ezipheleleyo ze-spectrographic kunye nezatifikethi zovavanyo lwe-tensile.
Yintoni eyahlulayo kwiziseko ezisemgangathweni? Iinyani ezintathu zokusebenza:
- Uqeqesho lwe-alloy-hayi nje ubuchule. Abayi "kuphatha" i-cobalt-nickel alloys. Basebenzisa imimandla yomlilo enikezelweyo ye-AMS 5387, enezikhephe ezinqamlezileyo, iileyile, kunye neeprothokholi zokuphatha i-slag ukunqanda ukungcoliseka okunqamlezayo ngamabakala angenasici. Xa umthengi ethumela umzobo weplagi ye-cobalt alloy non-standard ye-cobalt ene-0.05 mm yokunyamezela kwisigxina kwiichweba ezithandathu, iqela alizange licaphule ngokungaboni. Baye baqhuba indibano ye-wax ehlekisayo, ukubekwa kwesango eliqinisekisiweyo nge-flow simulation, kunye nexesha eliqinisekisiweyo lokutshiswa kweqokobhe-ngaphambi kokuvuma i-PO.
- Akukho handoffs phakathi cast kunye nomatshini. Uninzi lwababoneleli bakhupha umsebenzi we-CNC emva kokuphosa. Apha, injineli esemgangathweni efanayo isayina kuyo yomibini i-as-cast surface finish (Ra ≤ 3.2 μm) kunye nedatum yokugqibela eyenziwe ngomatshini (i-CMM-iqinisekisiwe kwi-± 0.01 mm). Oko kuphelisa iimpazamo zokupakisha xa ujika i-flange yesiseko sempompo kwaye ubhore ngokuseta enye-ibaluleke kakhulu kwingqibelelo yotywino lwe-hydraulic.
- Ukungaphumeleli-imowudi yolwazi eyakhelwe kwinyathelo ngalinye. Kwintsimbi kunye nentsimbi engenasici esetyenziswa kwisixhobo se-oyile negesi, benza ulwelo lokuhlola ukungena *emva* kokudutyulwa koqhushumbo kodwa *phambi* komatshini—ukubamba i-micro-shrinkage porosity enokuthi ukucola kugqunywe ngenye indlela. Ukuba inxalenye ye-T800 ye-alloy ibonisa ukubandakanywa kwe-subsurface oxide phantsi kwe-scan ye-ultrasonic, iyachithwa-ayi "reworked." Ngenxa yokuba kwizicelo ezibalulekileyo zemishini, "ukulunga ngokwaneleyo" kuyasilela ngokuthula-kwaye kuyintlekele.
Abanye banokuxoxa ukuba ukujulwa kwesanti kunika uguquko olukhawulezayo kwiintsimbi ezinkulu. Kodwa xa inxalenye iyi-winch centre shaft roller esebenza phantsi komthwalo we-cyclic torsional, ukuthembeka kwejometri kubaluleke ngaphezu kwesantya. I-wax elahlekileyo ihambisa iimilo ezikufutshane-netha ngeendonga ezingenayo idrafti, isusa umatshini wesibini kwiindawo ezibalulekileyo zokuthwala. Kwaye ewe-ixabisa ngaphezulu kwangaphambili. Kodwa umxhasi omnye unciphise iindleko zizonke nge-valve nganye ngama-22% emva kokutshintsha: iindibano ezimbalwa ezikhatywayo, ukuvuza kwe-zero kwintsimi, kunye nobomi benkonzo eyandisiweyo ukusuka kwiinyanga ezili-14 ukuya kwiinyanga ezingama-36+ kwiindawo ezisentlango.
Oku akuyothiyori. Iyaphinda-phinda. Umgangatho wabo wemveliso uqhuba iindlela zokuqhutywa komsebenzi ezithambileyo-hayi njengesilogeni, kodwa njengesiqhelo semihla ngemihla. Iiprototypes zithunyelwa kwiintsuku ze-12 zokusebenza. Ii-odolo zomthamo ophakathi (i-50-500 iipcs) zibambe iifestile zokuhanjiswa kweentsuku ezi-±-3-ziqinisekiswe ngokubhaliweyo. Ulawulo lweprojekthi lubandakanya uphawu lwexesha lokwenyani lokuzoba, ukusonjululwa kwengxabano ye-GD&T, kunye nengxelo yokwenziwa kwezinto kwiiyure ezingama-48 zokungeniswa kweRFQ. Akukho kucaphula ibhokisi emnyama. Hayi, "siya kuyiqonda kamva." Ulungelelwaniso lobunjineli nje ukusuka kusuku lokuqala.
Ukujonga phambili, ugxininiso luyalola: ubunzulu be-R&D kwi-hybrid casting-machining ulandelelwano lwezindlu zempompo ezinodonga olubhityileyo, uqinisekiso olwandisiweyo lolwamkelo lwemathiriyeli ye-aerospace, kunye nokudityaniswa okungqingqwa kwentelekelelo ye-thermal ngexesha lokudubula kweqokobhe. Kodwa undoqo awutshintshi-inkcazo yabo yenyani umzi-mveliso weenkonzo zokugalela umthwebeba ezilahlekileyo ayithethi malunga nezixhobo zokusebenza. Kumalunga nokuba nesiphumo se-micrometer nganye, konke ukubandakanywa, wonke umjikelo wobushushu. Kuba xa inxalenye yakho ibambe iilitha ezingama-5,000 zamanzi olwandle—okanye ilawula ukuhamba kwamafutha kwi-injini yomoya—umzi-mveliso owukhethayo awuboneleli ngesinyithi. Inika ukuzithemba.
