Lokacin da injiniyoyi suka bayyana karfe allura gyare-gyare sassa factory mafita don babban matsi na hydraulic bawul ko cobalt-alloy famfo nozzles, ba kawai siyan abubuwan da aka gyara ba - suna tabbatar da kwanciyar hankali a ƙarƙashin damuwa na 300 MPa, amincin microstructural bayan maganin zafi, da sifili batch-to-batch drift in AMS 5387 gami taurin. Shi ya sa daidaito ba da'awar tallace-tallace ba ne a nan - shine ainihin abin da ake bukata.
Mun ga ayyuka da yawa sun tsaya tsayin daka a matakin samfur saboda zaɓaɓɓen mai siye ya kula da MIM a matsayin "wani tsarin foda kawai." A hakikanin gaskiya, nasarar yin gyare-gyaren ƙarfe na ƙarfe don ɓangarorin masana'antu masu mahimmancin manufa yana buƙatar fiye da murhun wuta da kayan abinci. Yana buƙatar horo na ƙarfe a cikin samar da kayan aiki, ƙaddamar da sarrafa motsin motsa jiki, bayanan sirrin bayanan da aka kunna kowane dangin gami-da mahimmanci-haɗin kai tare da kammalawar CNC da kuma GD&T mai yarda da dubawa. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. Yana aiki ta wannan hanya ba ta banbanta ba amma ta ƙira: kowane gida mai matsa lamba na MIM, piston famfo silinda, ko winch center shaft roller yana farawa da ƙwararrun albarkatun tushen cobalt na T800, ba nau'in foda na bakin karfe ba.
Haƙiƙanin fasaha guda uku sun raba iyawar gaskiya daga masu siyar da kasida:
- Ba za a iya gano abubuwan ganowa ba. Dole ne guda AMS 5387 cobalt alloy toshe dole ne ya ɗauki cikakkun takaddun zafi mai yawa-ba kawai rahoton gwajin niƙa ba. Mun tabbatar da shigowar foda oxygen abun ciki (<0.025%), rarrabuwar girman barbashi (D50 = 8-12 µm), da iyakoki saura na ɗaure kafin lodawa cikin layin hadawa. Babu ware.
- MIM ba ta keɓe don sassa masu aiki ba. Kusan kashi 92% na abubuwan da aka samar da MIM ɗinmu suna yin aikin injiniya na biyu-musamman don rufe saman filaye, sifofin zaren, da ɗaukar mujallu. Kayan aikin mu mai yarda da ISO yana gudanar da cibiyoyin CNC masu yawa-axis kai tsaye kusa da layin sintering, yana kawar da zirga-zirgar ababen more rayuwa wanda ke yin haɗari da yaɗuwar micro-crack a cikin brittle superalloys.
- Matsakaicin iko yana faruwa kafin fitarwa - ba bayan ba. Ba a amfani da ramuwa a matsayin abin bargo. Don gidan Silinda mai diamita 42-mm a cikin alloy T800, muna yin ƙirar tasirin zafi mai zafi a cikin rami mai ƙyalƙyali, daidaita gradients mai yawa a cikin kayan abinci, da tabbatar da juriya ta ƙarshe ta amfani da injunan auna daidaitawa waɗanda aka daidaita zuwa ka'idodin ISO 10360-2 - ba masu kwatancen gani ba.
Wasu na iya jayayya cewa simintin saka hannun jari na gargajiya yana ba da ingantattun kaddarorin inji don sassan cobalt mai kauri. Amma bayananmu sun nuna in ba haka ba: don kaurin bangon da ke ƙarƙashin 12 mm, MIM yana ba da 15-18% ƙarfin juriya mafi girma da 22% ingantacciyar juriya a cikin AMS 5387-saboda ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun tsarin ke maye gurbin simintin simintin gyare-gyare na dendritic. The ciniki-off? Matsakaicin ma'aunin geometric. Ba mu yarda da MIM don sassa masu ma'auni sama da 8:1 ko fasalulluka na ciki ƙasa da Ø0.3 mm ba tare da sake fasalin haɗin gwiwa ba. Wannan gaskiyar tana hana sake yin aiki mai tsada daga baya.
Abin da masu amfani ke tambaya-kuma menene canje-canjen sakamakon aikin-ba "Za ku iya yin shi ba?" amma "Za ku iya riƙe ± 0.015 mm a kan 120-mm cylindrical surface * bayan * nitriding?" ko "Shin sashin T800 MIM naku zai tsira da hawan keke 10,000 a 180 ° C a cikin kwararar mai mai arzikin H₂?" Amsar mu koyaushe tana goyan bayan rahotannin gwaji-ba alkawuran ba. Kowane tsari ya haɗa da samfuran tensile da aka gwada ta ASTM E8, taswirar tauri a cikin yankuna masu mahimmanci, da ingantaccen fesa gishiri don ƙãre saman. Muna riƙe samfurori don shekaru 5. Idan abokin ciniki ya yi tambaya game da aikin, muna jawo rahoton CMM na asali, log ɗin sintering, da yanayin zafin magani-duk an ɗaure su da lamba ɗaya.
Wannan matakin na haɗin kai tsaye - cancantar kayan aiki, sarrafa MIM, ingantattun injina, magani mai zafi, da gwajin aiki a ƙarƙashin rufin ɗaya - yana nufin ƙarancin hannun hannu, bincike mai saurin tushen tushen, da rashin tabbas lokacin da wani abu ya faɗi a waje takamaiman. Hakanan yana nufin mun kama al'amurran masana'antu da wuri: kwata na ƙarshe, mun ba da alamar kiran GD&T wanda ya ɗauki raguwar isotropic a cikin hadadden jikin bawul. Sake tsarawa ya ceci abokin ciniki makonni uku da $27,000 a cikin kayan aiki na farko da aka soke.
Neman gaba, ainihin ƙulli a cikin MIM mai ƙarfi ba kayan aiki ba ne - ilimin aikace-aikacen ne. Muna faɗaɗa mayar da hankali kan R&D ɗinmu akan matakan haɗaɗɗiyar: haɗa nau'ikan nau'ikan sifofi na MIM tare da daidaitattun harsashi na yashi-siminti don babban tushe mai diamita na famfo, sa'an nan kuma yin injin musaya masu aiki kawai. Wannan yana yanke nauyi da kashi 31%, yana haɓaka rarrabawar yanayin zafi, kuma yana riƙe da cikakken juriya na lalata inda ya fi dacewa.
Idan odar ku ta gaba ta ƙunshi sassan cobalt-nickel MIM don tsarin na'ura mai aiki da karfin ruwa, kayan aikin mai & iskar gas, ko majalissar winch abin hawa - kuma kuna buƙatar sake maimaitawa, ba kawai abin da aka nakalto ba - sannan tabbatar da ainihin sarrafa tsarin MIM na mai kaya fiye da banner ɗin gidan yanar gizon su. Nemi sabon log ɗin su na AMS 5387. Nemi rahoton su na CMM akan bututun bututun T800 na baya-bayan nan. Tabbatar da ko "masana'anta gyare-gyaren alluran ƙarfe" suna sarrafa takaddun shaida a cikin gida ko fitar da shi. Amsoshin zasu gaya muku komai.
