Mukamva 'investment casting Inconel', lingaliro laposachedwa nthawi zambiri limakhala lakuchita monyanyira - masamba a turbine, manifolds amlengalenga, zinthu zotere. Koma pali kusiyana pakati pa pepala lokhazikika ndi kutsanulira kwenikweni. Mashopu ambiri amati atha kuchita izi, koma kugwiritsa ntchito ma aloyi opangidwa ndi faifi tambala, makamaka zokonda za Inconel 718 kapena 625, sikungokhala ndi chipolopolo cha ceramic ndi ng'anjo. Chinyengo chenicheni chiri mu kasamalidwe ka matenthedwe, mapangidwe a gating, ndipo moona mtima, kudziwa nthawi yoti muchoke pa geometry yomwe ikungofunsa zovuta. Ndawonapo projekiti yopitilira imodzi chifukwa chongoyang'ana pazithunzi zomwe zidajambulidwa, osati momwe zimakhalira zikasungunuka ndikuthamanga mu nkhungu.
Aloyi Si Nkhani Yonse
Kuyambira ndi kusungunuka ndi pamene mumalekanitsa nkhani ndi ntchito. Inconel ali ndi chizolowezi choyipa chochita ngati mwalakwitsa. Timayendetsa ng'anjo zathu molimba, koma ngakhale zitatero, kufufuza zinthu kumatha kuyambitsa zovuta. Sizongopewa kupewa okosijeni; ndizokhudza kuwongolera kuzizira kuyambira poyambira. Mofulumira kwambiri, ndipo mumatsekereza kupsinjika ndikulimbikitsa micro-porosity yomwe ingalephere kuwunika pambuyo pake. Kuchedwetsa kwambiri, ndipo mumakula kwambiri tirigu, kupha zida zamakina zomwe mukuziponyera poyamba.
Ndikukumbukira gulu la chigawo cha static structural component mu turbine yochokera pamtunda. Kusindikiza kunafuna kutulutsa ndalama Inconel 718, zinthu wamba. Koma kusiyana kwa makulidwe a khoma kunali koopsa. Tinathira, ndipo NDT inawonetsa ndalama zoyera. Komabe, pa nthawi yothetsera kutentha kwa siteji, mbali zina zinagwedezeka kupitirira kupulumutsa. Wolakwa? Kukhazikika kosagwirizana kumapangitsa kuti pakhale zovuta zamkati zomwe kutentha kumangowonjezereka. The alloy anakumana spec, koma ndondomekoyi sinawerengere momwe kutentha kwake kumapangidwira. Ife tinayenera kubwereranso, kukonzanso kuponya ndalama kuziziritsa kofananako, ndikuwonjezera njira yochepetsera kupsinjika musanayambe kutentha kwathunthu. Zinawonjezera mtengo ndi nthawi, koma zinali zimenezo kapena zosachepera.
Apa ndipamene zochitika ndi unyolo wonse zimafunikira. Sitolo yomwe imangotsanulira zitsulo ndikuzitumiza ndi mlandu. Mufunika maziko ndi makina opangira pansi pa denga limodzi, kapena osachepera mogwirizana. Ndagwirapo ntchito ndi Qingdao Qiangsenyuan Technology Co., Ltd. (QSY) pa prototyping kale. Kukonzekera kwawo kumakhala komveka - zaka zoposa 30 mukupanga ndi kupanga makina, kusamalira chirichonse kuchokera ku nkhungu ya zipolopolo mpaka kuponya ndalama ndiyeno CNC imagwira ntchito pazinthu zomwezo. Kwa Inconel, kupitiliza kumeneko ndikofunikira. Simungathe kukhala ndi nyumba yoponyera mlandu wotsutsa makinawo chifukwa cha malo ovuta, ndipo wojambulayo akuimba mlandu wochita zoipa. Likakhala gulu limodzi, kubwerezabwereza kumakhala pompopompo. Amawona moyo wathunthu, kuchokera ku sera kupita ku gawo lomaliza, lomwe limadziwitsa zisankho zabwino pa siteji yothira.
Kumene Njira Imaluma Mmbuyo
Nyumba ya zipolopolo ndi bwalo lina lankhondo lopanda phokoso. Pazitsulo za carbon, slurry ndi stucco system imatha kuwuluka. Kwa Inconel, makamaka pazigawo zopyapyala zokhala ndi mipanda kapena zovuta zamkati, chipolopolocho chimafunika kukhazikika komanso kutha kukhazikika kwapadera. Ngati chipolopolocho ndi champhamvu kwambiri, chimalepheretsa kuponyera panthawi yozizira, zomwe zimayambitsa misozi yotentha. Ngati ili yofooka kwambiri, imatha kusweka panthawi yogwira kapena kutsanulira. Tayesa zophatikizika zosiyanasiyana zophatikizika - silika wosakanikirana, zircon, alumina - kuyesera kuti tipeze mulingo woyenera wa valavu inayake ya Inconel 625. Zinatenga maulendo atatu kuti apeze chipolopolo chomwe chingapulumuke kuchotsedwa kwa autoclave ndi 1500 ° C+ kutsanulira popanda kugwedezeka kapena kuchititsa kuti pakhale zovuta pamtunda.
Kulondola kwa dimensional ndi dziko lolonjezedwa la kuponya ndalama, koma ndi Inconel, kuchepa sikudziwika nthawi zonse. Chilolezo chotsitsidwa chosindikizidwa ndi poyambira, osati chitsimikizo. Zomwe zimatengera gawo la geometry, gating, ndi momwe timayendetsera gululo. Timasunga laibulale ya zowongolera za mabanja athu wamba. Mawonekedwe osavuta a cylindrical akhoza kukhala abwino ndi buku la 2.1% shrinkage linear. Koma gawo lomwe lili ndi nthiti zodutsana, ngati nyumba ya compressor, imakoka mosiyana. Tinaphunzira izi movutirapo pa dongosolo lazamlengalenga loyambirira. Tinagwiritsa ntchito lamulo lochepetsera, ndipo omaliza omaliza anali osalolera pa malo ovuta kwambiri. Anayenera kugwiritsanso ntchito sera kufa, zomwe zinayambitsa ntchitoyo masabata angapo. Tsopano, pa geometry yatsopano yovuta, tidzayesa kuyerekezera ngati voliyumu ikuvomereza, kapena kutsanulira chitsanzo chimodzi chopereka nsembe mu aloyi yotsika mtengo poyamba kuyeza kuchepa kwenikweni.
Post-casting ndi pomwe ambiri amaganiza kuti ntchito yolimba yachitika. Si. Mphamvu ya Inconel imabwera chifukwa cha kuuma kwake kwamvula. Kwa 718, izi zikutanthauza kutsata ndendende: njira yothetsera, kuzimitsa, zaka. Kuchuluka kwa kutentha ndikofunikira. Ngati mbaliyo ikazizira kutentha kwa njirayo pang'onopang'ono, mumapeza mvula yambiri yolimbitsa magawo mu malire a tirigu, ndikupangitsa kuti ikhale yolimba. Tinali ndi gulu lomwe chotchingira chozimitsira chinadzaza, ndipo zigawo zapakati zidazizilitsidwa pang'onopang'ono. Anapambana cheke choyambirira cha kuuma koma adalephera kwambiri pakuyesa kutopa pambuyo pake. Kusanthula kulephera kunalozera pa microstructure yosokonekera kuchokera pakuzimitsa kosagwirizana. Kunali kulephera kwa kayendedwe ka zinthu, osati zitsulo, koma zotsatira zake zinali zofanana—zinyalala.
Machining: Theka Lina la Nkhondo
Ichi ndichifukwa chake chitsanzo chophatikizika cha kampani ngati QSY ndichofunika. Kuponya gawo labwino la Inconel ndi theka la ntchito. Ngati makina otsika a CNC sanakonzedwe kuti zinthuzo zikhale zowumitsa ntchito, muwononga kuponya kwabwino. Inconel ndi yowawa komanso yolimba. Imaseka zida wamba. Mufunika makonzedwe okhwima, magiredi apadera a carbide, zoziziritsa kukhosi zothamanga kwambiri kuti muthyole chip, ndi kutsika, kusinthasintha kwachakudya. Cholinga chake ndikumeta zinthu popanda kulola kuti kutentha kukule, zomwe zimangolimbitsa malo omwe mukuyesera kudula.
Nthawi ina tidalandira bracket yokongola ya Inconel 718, kungokhala ndi makina athu ojambulira mphero zitatu zodula zoyesera mphero yosavuta. Vutolo? Khungu loponyera, ngakhale lowoneka bwino, linali lolimba pang'ono, losinthika pang'ono pokhudzana ndi chipolopolo. Magawo athu opangira makina, omwe amagwira ntchito mkati mwa gawolo, anali ankhanza kwambiri pachikopa chimenecho. Tinayenera kuwonjezera chiphaso chopepuka, choyambirira chokhala ndi magawo enaake kuti tidutse pamwamba pake. Ndizovuta zomwe mumangophunzira pochita, kapena kugwira ntchito ndi mnzanu yemwe dipatimenti yake ya CNC imalankhula tsiku ndi tsiku ndi oyambitsa. Kuwona tsamba lawo pa tsngtaocnc.com, mutha kuwona onse akulemba kuponya ndalama ndi CNC Machining kwa ma aloyi opangidwa ndi faifi tambala. Chidziwitso chophatikizika chimenecho ndi chomwe chimalepheretsa zodabwitsa zamtengo wapatali izi. Katswiri wamakina amadziwa zomwe angayembekezere kuchokera kuzinthu zoyambira, ndipo woyambitsayo amadziwa zomwe makina amafunikira kuti adulidwe bwino.
Kukhulupirika kwapamwamba ndikofunikira kwambiri pazigawo zofunika kwambiri zotopa. Kudutsa kosakwanira kwa makina kumatha kuyambitsa ming'alu yaying'ono kapena kupsinjika komwe kumakhala malo oyambira kulephera. Apa ndi pamene masitepe omaliza a makina - nthawi zambiri akupera kapena kutchera malo ovuta - amakhala gawo la unyolo wabwino. Sichiganizo chotsatira; ndi ndondomeko yodziwika. Kutha kuwongolera unyolo wonsewo, kuyambira chitsulo chosungunuka mpaka kumapeto, pansi pa dongosolo limodzi labwino, kumachepetsa zosinthika kwambiri.
Zowona Zakufufuza ndi Vetting
Choncho, pamene mukufufuza ndalama zoponyera Inconel, kodi muyenera kuyang'ana chiyani kuposa kabuku ka malonda? Choyamba, funsani za filosofi yawo yoyendetsera kutentha. Kodi amangotsatira Chinsinsi, kapena amasintha magawo ngati kutentha kwa kutsanulira ndi nkhungu preheat kutengera gawo la geometry? Chachiwiri, fufuzani traceability wawo. Pazamlengalenga kapena mafuta & gasi, mufunika malipoti athunthu osungunuka ndi macheke a chemistry. Kodi angapereke zimenezo? Chachitatu, komanso chofunikira kwambiri, yang'anani kuthekera kwawo kwaposachedwa. Kodi amatenthetsa m'nyumba mpaka chotsimikizika (monga AMS 2774)? Kodi ali ndi makina a CNC operekedwa ku ma aloyi olimba, kapena amawatulutsa?
Ogulitsa ngati QSY, omwe ali ndi mbiri yakale, nthawi zambiri amakhala ndi makinawa. Kutchulidwa kwawo kokhazikika pakupanga ndi kupanga ma aloyi apadera monga opangira faifi ndi chizindikiro chofunikira. Zimatanthawuza kuti akumanapo-ndi kuthetsa-mavuto osagwirizana pakati pa magawo oponyera ndi omaliza. Iwo sali chabe phula-ndi-kutsanulira; iwo ndi opanga chigawo. Kusiyana kumeneko kuli kofunika.
Pomaliza, khalani owona za mtengo ndi nthawi yotsogolera. Kutulutsa koyenera kwa Inconel sikutsika mtengo kapena mwachangu. Njira yopangira sera ndi yolondola. Njira ya chipolopolo ndi masiku ambiri. Chithandizo cha kutentha ndi ntchito yovuta kwambiri yolamulidwa. Ndipo makina akuchedwa. Ngati mawuwo akuwoneka ngati abwino kwambiri kuti asakhale owona, mwina akudula ngodya-mwina pa mulingo wa vacuum panthawi yosungunuka, kapena kudumpha kuzungulira koyenera kwa HIP (Hot Isostatic Pressing) kuti atseke porosity, kapena kugwiritsa ntchito zida za generic pakumakina. Aliyense wa iwo adzabweranso kudzasokoneza gawo la utumiki. Mtengo suli paundi yachitsulo yomwe mumapeza; ili mu ndondomeko yoyendetsedwa, yolembedwa, ndi yophatikizika yomwe imatembenuza chitsulocho kukhala chigawo chodalirika. Ndicho chimene inu mukulipira kwenikweni.
