Mukamva N08825, kapena Alloy 825, lingaliro laposachedwa nthawi zambiri limakhala 'nickel-iron-chromium alloy'. Ndilo buku lophunzirira. Koma m'dziko lopangira makina ndi makina, chizindikirocho sichimakanda pamwamba. Nkhani yeniyeni siili mu pepala lokha; ndi kutsanulira, kudula, kutentha kutentha, ndi zosankha zazing'ono zosawerengeka zomwe zimalekanitsa chigawo chopambana ndi mulu wamtengo wapatali. Ndawonapo ma projekiti ambiri akupunthwa powatenga ngati ena opanda banga. Si.
The Foundry Floor Reality yokhala ndi 825
Kuponya N08825 ndipamene chiphunzitsocho chimakumana ndi moto, kwenikweni. Kuchuluka kwa faifi tambala kumapangitsa kukana kosangalatsa kuchepetsa ma acid ndi kupsinjika-kusweka kwa dzimbiri, komanso kumapangitsa kukhala chilombo cha zipolopolo kapena kuponya ndalama. Njira yolimbitsira ndi... finicky. Simungangogwiritsa ntchito njira yomweyi yomwe mungagwiritse ntchito pagawo lopanda banga la 316 ndikuyembekeza zabwino. The shrinkage ndi osiyana, fluidity amamva mosiyana. Kumayambiriro, tinali ndi gulu la matupi a valve omwe amawonetsa micro-porosity m'magawo okhuthala. Chemistry inali yangwiro pa cert, koma kapangidwe kake sikanali komveka.
Nkhaniyi imachokera ku kutentha kwa kuthira ndi nkhungu preheat. Tinkayendetsa bwino kwambiri, kuyesera kuchepetsa kutayika kwachitsulo ndi okosijeni, koma ndi 825, zomwe zimangotchera mpweya ndikupanga zovuta. Mumafunika kutentha kokwanira kuti ukhale wowonda, koma osakwera kwambiri mumawotcha zinthu zomwe zimapangidwira kapena kuwukira chipolopolo cha ceramic mwamphamvu. Ndi zenera lopapatiza. Wokondedwa ngati Malingaliro a kampani Qingdao Qiangsenyuan Technology Co., Ltd., ndi zaka makumi atatu mu zipolopolo ndi kuika ndalama, amapeza izi. Iwo ayenera kuti awonapo kuvina komweko. Zomwe adakumana nazo pazitsulo zapadera zimatanthawuza kuti mwina akhazikitsa ndondomeko zopangira ma curve ndi nkhungu zokonzekera zamagulu opangidwa ndi faifi tambala, lomwe ndi theka la nkhondo yomwe yapambana.
Chithandizo cha kutentha pambuyo poponyedwa sichingakambirane. As-cast 825 ili ndi ma carbides ndi ma intermetallics omwe amawononga dzimbiri. Mufunika njira yothetsera vutoli mozungulira ° F ndikutsatiridwa ndi kuzimitsa mwachangu kuti zonse zibwerere mu njira yolimba. Lumphani kapena kusokoneza kutentha, ndipo gawolo likhoza kudutsa cheke koma lidzalephera m'munda, m'malo olemera kwambiri a chloride. Ndi gawo lofunikira lomwe limawonjezera mtengo ndi nthawi, ndipo simungathe kudumphadumpha.
Machining: Kumene Zida Zimapita Kukafa (Ngati Simusamala)
Ngati kuyiponya ndikovuta, kukonza N08825 ndipamene mumapeza mikwingwirima yanu. Kuyitcha kuti 'gummy' ndikosavuta. Sichiphuphu; zimapanga zingwe zazitalizi, zolimba, zolimba zomwe zimatha kuzungulira chilichonse ndikuwononga. Chiwopsezo cha kuuma kwa ntchito ndi chodabwitsa. Kuyikapo pang'ono pang'ono kapena kudulidwa mopepuka kumangoyang'ana pamwamba, kuumitsa ndikupangitsa kuti chidutsa chotsatira chikhale cholimba, zomwe zimapangitsa kuti chida chiwonongeke mwachangu komanso kuwonongeka kwa gawolo.
Tinaphunzira movutikira pa ntchito ya shaft pampu. Kugwiritsa ntchito magiredi wamba a carbide osapanga zosapanga dzimbiri? Tsoka. Moyo wa zida unkayezedwa mu mphindi, osati maola. Pamwamba pake panalibe bwino, ndipo nthawi zonse tinkalimbana ndi kulekerera kutentha chifukwa cha kutentha ndi kupanikizika. Kupambanako kunabwera chifukwa chosinthira ku magiredi odzipereka—ma carbide olimba, akuthwa chakuthwa okhala ndi zokutira mwapadera, ndi zonyamula zida zolimba zomangika pang’ono. Kuziziritsa sikungozizira pano; ndi za kudzoza ndi kuswa chip icho. Kuthamanga kwambiri, choziziritsira pogwiritsa ntchito chida ndichofunikira pa voliyumu yayikulu iliyonse.
Apa ndipamene kuphatikiza kwa shopu yantchito zonse kumafunikira. Kampani yomwe imayang'anira zonse zoponya ndi CNC makina m'nyumba, monga ntchito zomwe zafotokozedwa https://www.tsingtaocnc.com, ali ndi mwayi wapadera. Okonza makina kumeneko sakuwona billet yaiwisi, yokazinga; iwo akuchita ndi zopanga zawo zomwe. Amadziwa momwe khungu lawo limakhalira, kuuma komwe kungathe kuchitika, ndipo amatha kukonza njira yawo yopangira makina kuyambira pakudutsa koyipa koyamba. Chidziwitso chotsekekachi chimalepheretsa kupeka zambiri komanso kupha zida zomwe zimachitika pomwe sitolo yopangira makina ipeza 'bokosi lakuda' kuchokera komwe sikukudziwika.
Msampha Wosankha Aloyi: Pamene 825 Si Yankho
Nayi vuto lodziwika bwino: kutchula N08825 chifukwa ndi aloyi wodziwika bwino wa 'corrosion-resistant alloy' pamndandanda, osasanthula bwino chilengedwe. Ndi yabwino kumadera a sulfuric ndi phosphoric acid, yabwino kumadzi a m'nyanja. Koma ngati mukulimbana ndi ma chloride otentha, okhazikika kapena zosakaniza zina za asidi oxidizing, pakhoza kukhala zosankha zabwinoko monga ma aloyi apamwamba a molybdenum kapena titaniyamu. Ndikukumbukira pulojekiti yotsukira mankhwala pomwe kasitomala amaumirira pa 825 kutengera mtundu wakale. Ndemanga ya mtsinje weniweniwo, womwe unali ndi ferric ndi cupric chloride, udawonetsa kuti tinali kukopana ndi dzimbiri. Tinayenera kukankhira kumbuyo ndikupereka njira ina.
Ichi ndichifukwa chake luso lazinthu ndizofunikira. Wothandizira amene amalemba zochitika ndi zosiyanasiyana zitsulo zopangidwa ndi nickel ndi ma aloyi opangidwa ndi cobalt sikungowonetsa menyu. Zikutanthauza kuti iwo (kapena metallurgists) adakhalapo nawo kale pazokambiranazi. Amatha kuyang'ana chosindikizira ndikufunsa mafunso oyenera okhudza kutentha, pH, ma ion odetsedwa, ndi milingo ya nkhawa. Kulumikizana koteroko kumapulumutsa aliyense ku kulephera kumunda.
Zimakhudzanso kupanga. Nthawi zina, kuwongolera pang'ono pamapangidwewo - utali wowolowa manja kwambiri, kusintha kwa makulidwe a khoma - kungapangitse kuponyera ndi kupanga 825 kukhala kosavuta popanda kusokoneza ntchito. Sitolo yomwe imangopanga magawo osindikizira sangapereke zimenezo. Imodzi yomwe imapanga njira yopangira zinthu kuchokera kuzinthu zam'mwamba.
Kuwotcherera ndi Kupanga: Malo Obisika Opanikizika
Zigawo sizimangoponyedwa ndi kupangidwa ndi makina. Nthawi zambiri amafunika kuwotcherera ku zidutswa zina, kapena kukhala ndi ma nozzles. N08825 imatengedwa kuti ndi yowotcherera, ndipo ili, koma 'yowotcherera' sikutanthauza 'kukhululuka'. Mufunika zitsulo zofananira (monga INCO-Weld 825 kapena zofananira), ndikuwongolera kwambiri kutentha kwapakati ndi kulowetsa kutentha. Kutentha kwambiri, ndipo mutha kutsitsa ma carbides omwe ali m'dera lomwe lakhudzidwa ndi kutentha (HAZ), ndikupanga gulu laling'ono lazinthu zomwe zataya kukana kwa dzimbiri ndikukhala zolimba.
Tidapanga thanki yayikulu kamodzi, ndipo titayesa ndi madzi, ming'alu yabwino idawonekera mu HAZ pafupi ndi zisonga zingapo. Post-mortem idawonetsa kuti inali yophatikizika pang'ono yazitsulo zazitsulo ndikulola kutentha kwa interpass kukwera. Chitsulo chowotchereracho chinali chabwino, koma dera lomwe linali pafupi ndi ilo linali losokonezeka. Ndiko kulephera kobisika komwe sikumawoneka mpaka kupsinjika kapena muutumiki. Tsopano, lamuloli ndi kuyenerera kwadongosolo lonse ndipo, pazigawo zovuta, mwina chithandizo cha kutentha pambuyo pa weld kuti athetsenso HAZ, ngakhale kuti nthawi zambiri zimakhala zosathandiza pazinthu zazikulu.
Uwu ndi mkangano wina wophatikiza kupanga. Ngati wogulitsa yemweyo yemwe akuponya ndi kupanga makina akugwiranso ntchito, ali ndi mbiri yonse yotentha ya gawolo. Amadziwa bwino momwe zinthuzo zilili wowotcherayo asanazikhudze, zomwe ndikusintha kwakukulu komwe kumachotsedwa pa equation.
Kutsimikizira Kwabwino: Khulupirirani, koma Tsimikizani Mosalekeza
Ndi aloyi monga chonchi, mapepala ( Certs of Conformity ) ndiye mzere woyambira, osati mzere womaliza. Melt cert imakuwuzani kuti chemistry inali pomwepa. Izo sizimakuuzani za kukhulupirika kwa kuponya komaliza kapena zotsatira za Machining. Positive Material Identification (PMI) pakulandira, komanso pagawo lomaliza, ndi inshuwaransi yotsika mtengo. Ndawonapo kusakanizikana komwe giredi yowoneka ngati yosapanga dzimbiri idagwiritsidwa ntchito molakwika.
Pazigawo zofunikira kwambiri, makamaka za dzimbiri, nthawi zambiri mumafunikira zambiri. Izi zitha kuphatikiza kuyesa kwa dzimbiri kwapakati pa ASTM G28 Njira A pa HAZ yama welds, kapena macheke a ferrite. Kuyeza kwa utoto kapena radiographic kwa castings pafupifupi kuperekedwa. Mtengo wa mayesowa uyenera kuphikidwa kuyambira pachiyambi; iwo si 'owonjezera'. Wothandizira wozolowera kugwira ntchito ndi izi ma aloyi apadera adzakhala ndi ma protocol oyesa awa mumayendedwe awo wamba ndipo sangawakane. Zawo webusayiti imatchula zinthu ngati izi, zomwe zikutanthawuza dongosolo labwino lomwe limapangidwira kuti lizigwira.
Chotengera chomaliza? N08825 ndi chinthu chodabwitsa chikagwiritsidwa ntchito moyenera. Koma ntchito yake imagwirizana kwambiri ndi mmisiri wogwiritsidwa ntchito pa sitepe iliyonse-kuchokera ku ng'anjo yamoto kupita ku sitampu yomaliza ya QC. Imapindulitsa ukatswiri ndikulanga njira zazifupi. Ndiko kusiyana kwenikweni pakati pa gawo lomwe langopangidwa ndi Alloy 825 ndi lomwe limachita monga Alloy 825 ayenera.
