Lokacin da injiniyoyi suka ƙididdige simintin yashi na aluminum don manyan bawul ɗin hydraulic ko famfo, ba kawai zaɓin tsari bane - suna aiwatar da kwanciyar hankali a ƙarƙashin hawan keken zafi, daidaiton microstructural a cikin simintin 50-kg, da rashin haƙuri ga raguwar porosity a cikin flanges masu ɗaukar nauyi. Shi ya sa an aluminum yashi simintin kafa kafa factory dole ne ya yi fiye da zuba karfe a cikin gyare-gyare. Dole ne ta haɗu da kimiyyar ƙarfe tare da buƙatun aiki na zahiri na duniya-musamman lokacin da sassa ke aiki a mashaya 350, 180°C, ko ƙarƙashin kwararar slurry.
Mun ga ayyuka da yawa sun tsaya tsayin daka a matakin samfuri-ba saboda ƙira mara kyau ba, amma saboda kafuwar ba ta da takardar shedar allo, ba za ta iya riƙe ± 0.15 mm akan guntun silinda na 420-mm, ko rasa kiran GD&T akan mahimman abubuwan datum. A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Kowane simintin yashi na aluminum yana farawa tare da tabbatarwa AMS 4220 ko A380.1 - ba kawai takaddun niƙa ba, amma a cikin gida spectrometric sake gwadawa kafin cajin narke. Wannan ba za a iya sasantawa ba lokacin da gidan famfo na piston ɗin ku ya ƙulla $2.4M hako hakowa daga teku.
Menene ya raba masana'anta mai iya yin yashi na aluminum da mai kawo kayayyaki? Na farko: iko a kan cikakken sarkar. Ba mu fitar da ainihin yin, shakeout, ko sauƙaƙe damuwa. Kayan aikin mu masu dacewa da ISO yana sarrafa shagon ƙirar, taron ƙira, zubowa, jiyya mai zafi (T6 ko T7 kamar yadda aka ƙayyade), da injin gama CNC-duk ƙarƙashin rufin ɗaya. Me yasa hakan ke da mahimmanci? Saboda rashin daidaituwa na 0.08 mm tsakanin gyaggyarawa halves ya zama bambancin kauri na bango 0.3 mm a cikin jikin bawul mai diamita 120-mm. Kuma wannan bambance-bambancen yana haifar da fashe gajiya da wuri a radius na fillet. Muna kama shi a farkon binciken CMM-ba bayan gazawar filin ba.
- Girman aminci: Muna tabbatar da juzu'i na cavity ta amfani da sikanin 3D na gani kafin samar da ƙirar-ba kawai kwatancen CAD-zuwa-ɓangarorin ba, amma ainihin ƙirar ƙirar yashi.
- Microstructure mutunci: Kowane tsari yana jurewa bincike na metallographic don eutectic silicon morphology; m, allura-kamar Si yana lalata injina kuma yana sa juriya
- Shirye-shiryen saman: As-simintin Ra ≤ 12.5 μm akan mahimman abubuwan rufewa-babu fashewa na biyu sai dai idan an buƙata don mannewa.
- Tabbatarwa na aiki: Kowane simintin bawul ɗin matsa lamba yana wuce gwajin leak na helium a 1.5 × matsa lamba na aiki kafin fara machining
Wasu suna jayayya cewa simintin yashi ba zai iya daidaita simintin saka hannun jari ba don cikakkun bayanai. Gaskiya - don fasali a ƙarƙashin 1.2 mm, saka hannun jari ya ci nasara. Amma ga hadaddun geometries kamar winch center shaft rollers tare da hadedde gear hakora, sanyaya fins, da mai? Yashi simintin gyare-gyare yana ba da mafi kyawun kula da yawan zafin jiki yayin ƙarfafawa, yana rage zafi mai zafi a cikin ƙananan haƙarƙari. Muna amfani da yashi silica mai raɗaɗi tare da ikon sarrafawa (120-140) da taurin akwatin sanyi don maimaitawa a cikin nau'ikan 200+ a kowane mako. Babu saitin “kashe ɗaya”. Babu bambance-bambancen ramming na hannu. Kawai calibrated pneumatic compaction da ainihin lokacin kula da danshi.
Zaɓin kayan abu ba ƙa'ida bane a nan. Lokacin da OEM na Turai ke buƙatar maye gurbin gidaje don famfo-alloy mai sarrafa ɗanyen roba, ba mu saba da A380 ba. Mun gudanar da wasan kwaikwayo na thermal akan duka A380 da AlSi10Mg-sannan mun tabbatar da juriyar juriya ta AlSi10Mg sama da 150°C ta rage murdiya da kashi 40% akan sa'o'in aiki 10,000. Wannan shine bambanci tsakanin faɗin wani sashe da warware matsalar matakin-tsari. Injiniyoyin mu akai-akai suna nazarin rahotannin FEA tare da abokan ciniki-ba don amincewa da zane-zane ba, amma don nuna haɗarin sanyawa masu tashi da za su iya kama hydrogen a cikin mahadar tashar jirgin ruwa mai tsananin ƙarfi.
Amincewar isarwa ya dogara ne akan hasashen iya-ba alƙawura ba. Muna jera odar simintin yashi ta aluminum ta ma'aunin alloy, ba kawai ranar da za ta ƙare ba. A380 yana gudana Litinin-Laraba; AlSi10Mg yana samun ramummuka Alhamis-Jumma'a don gujewa kamuwa da cuta. Kowace jefa ƙuri'a tana ɗauke da cikakken abin ganowa: ID na tanderu, narkar da zazzabi, tambarin lokaci, da sa hannun mai aiki. Idan abokin ciniki ya buƙaci matakin PPAP na 3, muna isar da takaddun shaida, rahotannin CMM na farko, bayanan gwajin tensile, da hotunan rediyo-ba taƙaitawa ba. Wannan shine yadda muke kula da 98.7% akan isarwa akan lokaci don matsakaici-girma gudu (50-500 inji mai kwakwalwa / wata) a fadin Arewacin Amurka, Jamus, da Singapore.
An aluminum yashi simintin kafa kafa factory yana samun amincewa ba ta cikin ƙasidu ba, amma ta hanyar abin da ke faruwa lokacin da simintin gyare-gyaren ya huce: babu wani labarin da ba zato ba tsammani, babu sake yin aiki na minti na ƙarshe akan saman datum, babu wani abin mamaki da ƙi a binciken ƙarshe. A FASAHA QINGDAO QIANGSENYUAN, wannan daidaiton yana zuwa ne ta hanyar kula da kowane nau'i kamar kayan aiki daidai-ba kayan aikin da za a iya zubar da su ba. Daga lokacin da narkakkar aluminum ta buge ƙirar zuwa gwajin aikin ƙarshe, mu injiniyan yanayin yanayin da sashin zai fuskanta-ba zane kawai ba.
Idan muka duba gaba, hankalinmu yana ƙaruwa: haɗakar da simintin yashi tare da haɗaɗɗen kayan aiki don ƙaramar ƙarami, manyan maɗaukakiyar mahimmanci; daidaita daidaituwa AMS 5387 don aluminium-cobalt matasan majalisai; da kuma AS9100 takaddun shaida ta Q4 2025. Domin ƙarni na gaba na daidaitattun sassa na ƙarfe ba za a bayyana su ta hanyar simintin gyare-gyare kadai ba-amma ta yadda ba tare da matsala ba yana ba da damar yin aiki a inda ya fi dacewa.
