Lokacin da gidan famfo na ruwa ya fashe a ƙarƙashin mashaya 350, ko bututun ƙarfe na cobalt alloy ya ɓace bayan sa'o'i 400 a cikin sabis na iskar gas mai tsami, injiniyoyi sun daina tambayar "Wane abu ya kamata mu yi amfani da shi?" Suna tambaya: “Wanene zai iya injin? al'ada gami machining sassan da ba za su gaza a ranar 47 ba?"
Wannan tambayar ba ta ka'ida ba ce. Mun gan shi a cikin OEM filayen mai na Arewacin Amurka guda uku a bara-kowanne yana fuskantar raguwar lokacin da ba a tsara shi ba saboda allunan kan layi ba za su iya ɗaukar haƙurin GD&T ± 0.015 mm yayin da suke tsayayya da rami na chloride a 120 ° C. Daidaitaccen bakin karfe ya murtuke. Inconel 625 chipped a tushen zaren. Magani guda ɗaya kawai da aka gudanar: simintin tushen cobalt T800, gama-mashined tare da kulawar damuwa na zafin zafi kuma an tabbatar ta hanyar CMM a kowane mahimman bayanai.
Wannan shi ne inda mashin ɗin gami na al'ada ya daina zama abu na layin saye-kuma ya zama abin dogaro. Yana buƙatar fiye da ƙarfin CNC. Yana buƙatar horo na ƙarfe, gano tsari, da ƙwarewar injiniya a cikin mu'amalar simintin-injuna-zafi. Kadan masu kawo kaya ke aiki a wannan mahadar. Kadan har yanzu rubuta shi.
Me yasa Cobalt-Nickel Alloys Ya Bukaci Sama da "Mai kyau Isa" Machining
Cobalt-nickel superalloys kamar AMS 5387 ko T800 ba su da wahalar injin saboda suna da “wuya.” Suna da wahala saboda yawan ƙarfin aikin su ya wuce 300% yayin yankewar katsewar, ƙarfin zafin su yana zaune ƙasa da 12 W/m·K, da rashin daidaituwa na microstructural-har ma da 5-8 µm rarrabuwar carbide — yana haifar da maganganun kayan aiki wanda ke lalata amincin farfajiya akan fuskokin rufewa.
Mun taɓa karɓar zane don hannun rigar famfo na AMS 5387 tare da buƙatun 0.008mm Ra akan bututun ciki na mm 120. Abokin ciniki na farko ya yi amfani da daidaitattun abubuwan saka carbide da sanyaya-ta hanyar igiya. Sakamako? Hawaye saman sama a zurfin 80 mm, juzu'in juzu'i sama da ± 0.025 mm, da ƙimar juzu'i 37%. Gyaran mu ba "mafi kyawun kayan aiki ba." Ayyukan haɗin kai guda uku ne: (1) pre-machining zafin magani don daidaita rarraba carbide; (2) Ƙarfafawar wucewa da yawa tare da abubuwan da aka saka yumbu suna gudana a 42 m / min - jinkirin, amma barga; (3) Ma'aunin iskar da ake aiwatarwa a kowane mm 15 don daidaita biyan diyya kafin karkacewa ya wuce 0.005 mm.
Wannan matakin sarrafawa yana raba sassan aiki daga masu mahimmancin manufa. Bawul ɗin matsa lamba ba sa zubowa saboda hatimai sun dace-suna zubowa lokacin da gurɓatattun gidaje ke karkata a ƙarƙashin matsi. Wannan murdiya tana farawa tun kafin yankewar ƙarshe: a cikin kwararar hatsi, a cikin saura damuwa daga ƙimar sanyaya, a cikin gradients na zafi yayin annealing. Dole ne kayan aikin gami na al'ada ya sarrafa duka uku-ba kawai cire ƙarfe ba.
Haɗin Kai Tsaye Ba Kalma Bace-Layin Tsaro Na Farko Ne
Wasu shagunan fitar da simintin gyare-gyare. Wasu kuma suna fitar da maganin zafi. Ƙungiya ta uku ta fitar da bincike. Kowane handoff yana ƙara sauye-sauye: sinadarai marasa daidaituwa, lokutan jiƙa na tanderun da ba a yi rikodin ba, ƙirar gage mara izini. Lokacin da ɓangaren ku ya gaza, gano tushen tushen a tsakanin dillalai uku yana ɗaukar makonni-ba sa'o'i ba.
A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., simintin gyare-gyare, injinan CNC, da kuma gamawa suna faruwa a ƙarƙashin rufin da ya dace da ISO-tare da haɗin kai, haɗin kai na kayan abu, da ingantaccen tsarin haɗin gwiwa. Kowane cobalt alloy billet yana ɗauke da ID mai lamba QR mai haɗawa da rahoton gwajin niƙa, jefa fim ɗin X-ray, log ɗin kula da zafin zafi, da rahoton CMM na farko. Idan piston famfo silinda gidaje ya nuna rashin tsammani a gwajin filin, muna ja cikakkun tagwayen dijital-ba kawai takardar dubawa ta ƙarshe ba.
Wannan haɗin kai yana ba da sakamako masu aunawa:
- Kwanciyar kwanciyar hankali ta inganta da 40% akan jikin bawul ɗin matsa lamba na bakin ciki (kaurin bangon 0.8 mm, Ø142 mm OD)
- Matsakaicin ƙarewar saman ƙasa yana ƙarfafa daga ± 0.03 mm Ra zuwa ± 0.007 mm Ra akan nozzles T800
- Lokacin jagora don matsakaicin matsakaiciyar oda AMS 5387 an rage shi da kwanaki 22 tare da rarrabuwar sarƙoƙi.
Hakanan yana ba da damar hanyoyin haɓaka-kamar saka hannun jari-simintin T800 tare da kusan-net CNC gama-machining-wanda ke kawar da kusurwoyin daftarin da rage cire hannun jari da kashi 65%. Wannan ba tanadin farashi bane. Rage haɗari ne da aka gina a cikin lissafi.
Haqiqa Haqiqanin Duniya: Abin da Ainihin Ma'anar "Ma'anar Ma'anar Ma'anar Masana'antu
Ba a bayyana madaidaicin ta karatun micrometer kadai ba. An inganta shi a cikin aiki. Muna gwada kowane mahalli na bawul ɗin matsa lamba tare da hujjar hydrostatic a 1.5 × matsa lamba na aiki, sannan mu sake zagayowar shi sau 5,000 a cikin kewayon yanayin zafin sa. Kowane winch center shaft roller yana jurewa ingantaccen daidaito a 3,200 RPM-da duban gani don fashewar ƙasa ta hanyar amfani da mai ba da haske ta ASTM E1417.
Abokan ciniki sukan yi tambaya: "Shin za ku iya daidaita lokacin jagorar mai samar da mu?" Muna amsawa da bayanai-ba alƙawura ba. Misali, abin hawan injiniyan Turai OEM yana buƙatar raka'a 280 na filogi na cobalt (AMS 5387, Ø86 mm × 192 mm, tare da zaren ciki 6 M24 × 2). Dillalin su na farko ya nakalto makonni 14, ba tare da tallafin bita ba. Mun isar da labarai na farko a cikin makonni 6-ciki har da bita na GD&T, daidaitawar takaddun kayan aiki, da ra'ayoyin masana'anta waɗanda suka sauƙaƙa radii biyu marasa aiki. Bayarwa na ƙarshe: makonni 10. Sake aiki mai girman sifili.
Wannan gudun ya fito ne daga kawar da zato-ba yanke sasanninta ba. Mun tabbatar da taurin kayan kafin yin taurin. Mun gudanar da yanke gwaji a kan hadaya daga zafi guda. Mun auna kayan aiki kowane minti 12-ba kowane motsi ba.
Zaɓar Abokin Hulɗa don Injin Alloy na Al'ada: Duba Ƙarshen Rubutun
Idan aikinku na gaba ya ƙunshi cobalt-nickel, bakin karfe mai ƙarfi, ko nickel-iron gami, tambayi waɗannan tambayoyin kafin sanya hannu kan PO:
- Kuna sarrafa duk tarihin yanayin zafi-daga yawan sanyaya sanyi zuwa zagaye na ƙarshe-danniya?
- Shin za ku iya samar da cikakkiyar gano kayan abu zuwa ga narke, gami da sakamakon gwajin lalata na intergranular?
- Ta yaya kuke tabbatar da kwanciyar hankali a kan abubuwan da ke da bangon bakin ciki bayan injina da tsaftacewa na ƙarshe?
- Menene tsarin da aka rubuta don sarrafa kayan aikin kayan aiki akan allo tare da> 40 HRC da> 30% taurin aiki?
Amsoshin sun bayyana fiye da iyawa. Suna bayyana ko mai siyarwa yana ɗaukar sashin ku azaman ƙayyadaddun ƙayyadaddun bayanai-ko azaman ɓangaren tsarin tare da sakamako na zahiri.
Mashin ɗin gami na al'ada ba game da yin ƙarfe ya dace da zane ba. Yana da game da yin zane ya nuna abin da ƙarfe-da aikace-aikacen-zai iya bayarwa a zahiri. Wannan yana buƙatar ƙirƙira ƙirƙira a cikin gazawa, ƙwarewar da aka tabbatar a cikin tarin juriya, da amana da aka samu ta hanyar bayanan da ake iya ganowa-ba da'awar talla ba. Lokacin da matsin lamba ya yi ƙarfi, daidaito yana riƙe. Zaɓi daidai.
