Ayyukan masana'anta na bakin karfe suna buƙatar fiye da narkewa da zuba kawai. Suna buƙatar daidaitaccen horo, horo na ƙarfe, da sarrafa tsari waɗanda ke tsira daga hawan keke mai matsananciyar matsin lamba, yanayin filin mai, da shekarun da suka gabata na lodin keken keke a cikin motocin injiniya. Lokacin da matsi na bawul ɗin gidaje ya fashe a 3,000 psi-ko bututun bututun ƙarfe na cobalt-alloy ya ɓace bayan sa'o'in aiki 400 - gazawar ba ta cikin ƙira. Yana cikin rata tsakanin ƙayyadaddun bayanai da kisa.
Mun gan shi da hannu: wani OEM na Arewacin Amurka ya ƙi ɗimbin simintin ƙarfe guda uku a jere-ba don kuskuren girma ba, amma don tsarin hatsi mara daidaituwa a kusa da ƙofar. Tushen dalili? Ba a tantance ɗanyen abu ba kuma babu aikin tarihin yanayin zafi. Wannan lamarin ya sake fasalin yadda muke tunkarar kowace masana'antar bakin karfe a QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. Ba ma ɗaukar bakin karfe a matsayin kayayyaki. Muna kula da shi azaman tsarin aiki-inda sunadarai, ƙimar ƙarfi, mashin-induced saura damuwa, da amincin saman ƙasa dole ne su daidaita a ƙarƙashin sarrafa aiki guda ɗaya.
Ginshikai Hudu na Samar da Bakin Karfe Na Dogara
Amincewa yana farawa kafin zubawar farko. Yana farawa da haɗin kai da niyya-ba simintin simintin gyaran fuska, injina, ko dubawa ba, amma aiwatar da aiki tare a cikin ginshiƙai huɗu waɗanda ba za a sasanta ba:
- Mutuncin Abu Ta Tsara: Mun samar da bakin karfe ingots bokan zuwa ASTM A743/A744 (CF8M, CF3M), AMS 5387, da kuma al'ada T800 cobalt-tushen gami-tare da cikakken niƙa gwajin rahotanni da zafi lamba traceability. Babu ware. Ƙwararrun ƙungiyarmu suna nazarin takaddun bayanan ƙarfe na mai kaya * kafin* oda, tabbatar da daidaiton carbon, abun ciki na ferrite, da kewayon delta-ferrite akan takamaiman buƙatun gajiya.
- Ladabi na Tsarin Casting: Simintin yashi ya mamaye manyan gidaje (misali, piston famfo Silinda jikin har zuwa 120 kg); Simintin saka hannun jari yana rike da sirara mai bango, hadaddun geometries kamar AMS 5387 nozzles. Mahimmanci, muna sarrafa ƙimar sanyaya ta hanyar saka idanu akan yanayin zafi - ba yanayin shagunan yanayi ba - kuma muna tabbatar da ingantaccen simintin (amfani da gating na MAGMASOFT®) akan kowane sabon yanki.
- Machining Mai Girmama Metallurgy: CNC ba kawai game da haƙuri ba ne. Don bakin karfe, yana da game da guje wa taurin aiki da ƙananan fashewa. Muna amfani da ƙananan-RPM, dabarun ciyarwa mai girma tare da kayan aikin carbide mai rufaffiyar PVD, isar da saƙon da aka yi niyya a yankin shear-ba guntu ba-da damuwa-taimakon damuwa * kafin * OD/ID na ƙarshe yana kunna saman saman rufewa.
- Ingantattun Haɗe-haɗe, Ba a Dubawa ba: CMM sikanin faruwa bayan-roughing * da * bayan kammala-ba kawai a QA na ƙarshe ba. An tabbatar da ƙarancin saman (Ra ≤ 0.8 µm akan fuskokin rufewa) tare da ƙididdige bayanan bayanan tuntuɓar yau da kullun. Kowane kuri'a yana jurewa PMI (ganewar kayan abu mai kyau) da taswirar taurin kai a cikin sassan giciye. Babu wani abu da ke jigilar kaya ba tare da cikakken girma, sinadarai, da rajistan ayyukan gano injina ba.
Me yasa "Kamfanin Karfe Bakin Karfe" Ba kawai Game da Alloy ba
Wasu suna ɗaukan bakin karfe yana da garantin juriyar lalata. Amma simintin CF8M tare da 22% chromium da 12% nickel suna kasawa da sauri idan yankuna na interdendritic sun keɓance molybdenum-ko kuma idan injin ɗin ya bar ƙyallen ƙarfe na ƙarfe waɗanda ke fara rami. Mun auna ƙaddamar da rami mai haifar da chloride akan sassan “bakin” a cikin sa'o'i 72 na fallasa gishiri-gishiri lokacin da ba a cire gurɓatar ƙasa ta hanyar wucewar citric acid *bayan* injina.
Shi ya sa masana'antar mu ta bakin karfe ba ta daina yin simintin gyaran kafa. Ya haɗa da kula da yanayin zafi mai sarrafawa (mafita annealing a 1040-1120 ° C tare da quenching ruwa tabbatar da thermocouple tsararru), electropolished gama ga famfo internals, da ultrasonic tsaftacewa ingantattun zuwa ISO 14644 Class 7 particulate iyaka. Juriyar lalata ba ta asali ba ne - injiniya ne, tabbatarwa, kuma an rubuta shi.
Tabbatar da Gaskiya na Duniya: Daga Zane zuwa Ƙaddamarwa
Wani masana'anta kayan aikin ruwa na Turai yana buƙatar jikin bawul ɗin matsi na bakin karfe 24-kowanne yana da madaidaicin ma'auni shida, ± 0.01 mm juriyar matsayi, da ƙarancin ƙarancin ƙasa. Daidaitaccen ambato zai ɗauki kwanaki 11. Madadin haka, injiniyoyinmu sun gudanar da bincike-binciken tari na GD&T * yayin * matakin RFQ, sun ba da alamar rikice-rikice na tsarin bayanai guda biyu, kuma sun ba da shawarar tsarin aikin injin da aka sake fasalin wanda ya rage adadin saitin daga biyar zuwa uku-yanke lokacin sake zagayowar da kashi 37% ba tare da sadaukar da daidaito ba.
Sakamakon? Amincewa da labarin farko a ranar 18. Cikakken samarwa da aka ba da shi a cikin kwanaki 42-ciki har da gwajin lalata ta ASTM E165 da duban rediyo ta ASME BPVC Sashe na V. Babu sake yin aiki. Babu jinkiri. Wannan ba sa'a ba ne. Haɗin kai tsaye: ƙungiya ɗaya tana ɗaukar ƙirar ƙirar simintin gyare-gyare, tabbatar da shirin CNC, da gwajin aiki na ƙarshe akan na'urar gwajin ruwa na psi 5,000 na al'ada.
Zabar Abokin Hulɗa Bayan Rubutun
Lokacin kimanta masana'antar bakin karfe, yi tambayoyi uku babu amsa takamammen bayani:
- Shin za ku iya nuna mani rajistan ayyukan magani guda uku na ƙarshe don AMS 5387 simintin gyare-gyare-ciki har da lokacin jiƙa, ƙimar raguwa, da kashe matsakaicin zafin jiki?
- Ta yaya za ku tabbatar da rashin ƙananan raguwa a cikin sassan kauri> 50 mm? (Bayyana: X-ray shi kadai ya rasa microporosity; muna haɗa shi tare da zane-zane a kan samfuran giciye.)
- Menene madaidaicin rarrabuwar kawuna a saman fuskar da aka yi hatimi-kuma sau nawa kuke sake daidaita bayanan martabarku?
Idan amsar ta kasance m, gama gari, ko nassoshi “aiki na yau da kullun,” ci gaba da dubawa. Amintaccen samar da bakin karfe ba shi da madaidaicin gajerun hanyoyi. Yana da rubuce-rubuce, maimaituwa, matakan duba-kowane lokaci.
A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., ba a yi alkawarin dogaro ba. An tabbatar da shi-a cikin tsarin hatsi, a cikin rahoton CMM, a cikin gwajin gwajin gwaji. Muna gina kayan aikin bakin karfe waɗanda ba su dace da ƙayyadaddun bayanai kawai ba. Suna ci gaba da aiki inda gazawa ba zaɓi ba ne. Domin a cikin tsarin na'ura mai aiki da karfin ruwa, bawul ɗin mai & iskar gas, da injiniyoyin abin hawa, ƙarfe ba ya samun dama ta biyu.
