Simintin saka hannun jari don masana'antar sassa na injin injiniya ba zaɓin masana'anta ba ne kawai - hanya ce kawai mai yuwuwa lokacin da kwanciyar hankali, daidaiton tsarin microstructural, da amincin saman ƙasa dole ne su tsira 300+ mashaya na'ura mai aiki da karfin ruwa ko ci gaba da lalacewa a cikin ma'adinan winch. A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Mun jefa kan 12,000 AMS 5387 cobalt alloy famfo gidaje tun 2019. Kowane mutum ya wuce 100% CMM tabbaci a ± 0.05 mm GD & T callouts-kuma sifili kasa gwajin matsa lamba 5 aiki × 1.. Wannan daidaito ba ya faruwa da haɗari. Yana faruwa a lokacin da ake ɗaukar simintin saka hannun jari ba azaman tsari ba, amma azaman taron ƙarfe mai sarrafawa.
Me Yasa Simintin Zuba Jari Ya Yi Nasara Inda Yashi Ya Yi Kasa-Kowane Lokaci
Sassan injiniyoyin injiniya suna aiki a ƙarƙashin ƙayyadaddun ƙayyadaddun da ba za a iya sasantawa ba: Gidajen famfo na silinda na piston suna buƙatar daidaiton kwane-kwane na ciki a cikin 0.08 mm don hana cavitation; Jikin bawul ɗin matsa lamba yana buƙatar kaurin bango mai tsauri a ƙasa da 4.2 mm ba tare da porosity ba; winch center shaft rollers suna jure nauyi mai nauyi sama da 18,000 N·m yayin da suke juyawa a 65 rpm a cikin mahalli mai ɗauke da ƙura. Yin simintin yashi kawai ba zai iya isar da wannan haɗin ba. Its na hali haƙuri band ne ± 0.5 mm. Matsakaicin ƙarancin yanayin sa ya kai Ra 12.5 μm—ya yi yawa sosai don filaye mai ƙarfi. Kuma tsarin hatsin sa ba shi da iko na jagora, yana gayyatar ɓangarorin ɓarke na kusa kusa da masu tashin hankali mai mahimmanci.
Zuba jari ya warware duka ukun. Tare da ƙirar harsashi yumbu da aka gina daga madaidaicin ƙirar kakin zuma, muna riƙe ± 0.15 mm akan fasalulluka har zuwa 600 mm-mafi ƙarfi fiye da yawancin izinin kammalawar CNC. Ƙarshen saman ya buge Ra 2.5-4.0 μm as-cast, yana kawar da niƙa na biyu akan fuskokin rufewa. Mafi mahimmanci, bayanan martaba masu ƙarfi da muke sarrafawa-wanda aka samu ta hanyar ingantattun gating, harsashi preheat, da tanderun sanyaya tanderu - suna samar da kyau, tsarin dendritic iri ɗaya a cikin gami na tushen cobalt T800. Mun tabbatar da wannan tare da nazarin metallographic akan zafi na 47 a jere: Girman hatsi ya kasance ASTM 6-7 a kan iyakokin batch, yana daidaita kai tsaye zuwa 22% mafi girman rayuwar gajiya a cikin haɓaka gwajin shaft.
Haɗin Kai Tsaye Ba Kalma Bace - Inshorar Girman ku ce
Wasu masu ba da kayayyaki suna fitar da simintin gyare-gyare, injina, da jiyya na zafi. Ba mu. A wurin mu na ISO 9001-certified Qingdao, kowane kayan AMS 5387 yana gudana ta jeri ɗaya mai sarrafawa: ƙwararrun albarkatun ƙasa → vacuum-arc remelted ingot → simintin saka hannun jari → damuwa-taimakon damuwa → axis CNC contouring biyar → harbi-peened surface kayan haɓɓaka aiki → cikakken CMM. Me yasa hakan ke da mahimmanci? Saboda rashin daidaituwar haɓakar zafin rana tsakanin simintin gyare-gyare da injina yana haifar da ɓoyayyiyar yaƙi. Mun auna shi: sassan da aka yi sa'o'i 72 bayan yin simintin gyare-gyare sun nuna 0.032 mm baka akan tazarar 320 mm. Lokacin da aka yi injin a cikin sa'o'i 4 na sanyaya mai sarrafawa? Bakan ya faɗi zuwa 0.007 mm-a cikin ƙayyadaddun aiki don rotors na famfo mai sauri.
Wannan haɗin kai kuma yana kawar da gibin ganowa. Kowane kuri'a yana ɗaukar cikakkun takaddun shaida (MTRs), rajistan ayyukan tarihin zafi, da daidaita rahotannin ma'auni. Lokacin da OEM na Turai ya ba da rahoton lalacewa bawul bawul, mun gano shi - ba don haɗaɗɗen sinadarai ba - amma ga rashin daidaituwar zafin jiki na harsashi a cikin motsi ɗaya. Mun daidaita bayanin martabar tanderu, sake aiwatar da ingantaccen aiki, kuma mun isar da kayan maye a cikin kwanaki 11. Babu wani yatsa na ɓangare na uku. Babu jinkirin tushen dalilin kwanaki 45.
Ayyukan Duniya na Haƙiƙa yana Buga ƙayyadaddun Takardu-Kowane Lokaci Guda
Abokan ciniki suna tambaya: "Shin aikin simintin saka hannun jari na ku zai iya ɗaukar ɓangarorin 450 ° C a cikin kayan aikin saukar mai da iskar gas?" Muna amsawa da bayanai-ba ƙasidu ba. Nozzles ɗin mu na T800 sun yi sa'o'i 1,840 a cikin yanayin rijiyar da aka kwaikwayi kafin nuna zazzagewar da za a iya aunawa. Kwatankwacin yashi mai yashi ya gaza a sa'o'i 620. Bambancin? Rashin simintin saka hannun jari na walƙiya-layi da ingantaccen rarraba carbide na interdendritic.
Muna kuma bin hanyoyin gazawa. A cikin 2023, kashi 92% na ɓangarorin da aka ƙi sun fito ne daga batutuwa masu alaƙa da ƙira-ba aibi na tsari ba. Masu laifi na gama-gari: fillet ɗin da aka ƙirƙira waɗanda ke haifar da damuwa, rashin ƙididdigewa-don ainihin canji a cikin sassan bangon bakin ciki, ko kiran GD&T wanda bai dace da halayen haɓakar harsashi yumbura ba. Wannan shine dalilin da ya sa nazarin aikin injiniyanmu ya haɗa da ra'ayoyin masana'anta kyauta - alamar haɗari kamar "Wannan bangon 0.8 mm zai iya tsage yayin lalata" ko "Wannan ± 0.02 mm matsayi na haƙuri yana buƙatar gyaran CNC bayan jefa." Mun kama shi kafin a yanke tsarin kakin zuma na farko.
Fayil ɗin mu ya tabbatar da shi: bawul ɗin matsa lamba don masu tona na'ura mai ba da hanya tsakanin hanyoyin sadarwa, gidaje na silinda don famfunan laka guda uku, tushen famfo don raka'o'in desalination na teku, da ma'aunin ma'aunin ma'adinai na 50-ton - duk an yi su ta hanyar simintin saka hannun jari, duk an ba da su ga jadawalin, duk taron ASME B16.34, ISO 4287, da gwajin aikin abokin ciniki-.
Zabar Abokin Zuba Jari Mai Kyau yana nufin yin Tambayoyi masu wuyar gaske
Kar ku tambayi "Shin kuna yin simintin saka hannun jari?" Tambayi "Yaya kuke sarrafa bambancin kaurin harsashi a cikin tsarin 450 mm?" Ko "Mene ne madaidaicin ƙididdigar haɗawar ku ta ASTM E45 don AMS 5387?" Ko kuma "Nuna mani rahotannin CMM ɗin ku uku na ƙarshe don wani sashi tare da ≥12 GD&T callouts."
A QINGDAO QIANGSENYUAN TECHNOLOGY, muna buga waɗannan amsoshi-ba a cikin wuraren tallace-tallace ba, amma a cikin bayanan samarwa. Muna saka hannun jari a cikin CMM-aji na awo tare da tebur mai cike da zafin jiki, ba na'urar daukar hoto ba. Muna daidaita kowane ma'aunin zafin jiki kowace rana - ba mako-mako ba. Muna riƙe samfuran albarkatun ƙasa na shekaru 10-ba watanni 6 ba.
Simintin saka hannun jari don masana'antar sassan injiniyoyi ba batun nemo mai siyarwa ba. Yana da game da tabbatar da haɓaka fasaha na ƙungiyar injiniyoyinku-wanda ke magana da ƙwarewar ƙarfe, GD&T, da kimiyyar gazawar duniya ta gaske. Wannan shine mizanin da muka hadu. Kowace lokaci.
