Lokacin da injiniyoyi suka ƙididdige sassan ƙarfe da aka jefar da yashi don tsarin na'ura mai aiki da karfin ruwa, bawul ɗin filayen mai, ko taron famfo mai nauyi, ba kawai suna buƙatar “masu kafa ba.” Suna bukatar wani OEM yashi simintin gyaran kafa factory wanda ke kula da kwanciyar hankali mai girma, sarrafa microstructure, da gano kayan abu azaman wanda ba za'a iya sasantawa ba-ba ƙari na zaɓi ba.
Mun ga ayyuka da yawa sun tsaya tsayin daka a matakin samfuri saboda gidan simintin ba zai iya ɗaukar ± 0.15 mm akan cobalt-alloy piston home bore-ko mafi muni, isar da rashin daidaituwa AMS 5387 ƙarfi a tsakanin batches. Wannan ba batun inji ba ne. Rashin gazawar tsarin tsari ne: yin simintin gyare-gyare ba tare da horo na ƙarfe ba, injina ba tare da fassarorin simintin gyare-gyare na GD&T ba, ƙarewa ba tare da gwajin lalata aikin ba.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yana aiki daban. An kafa shi a cikin Qingdao, China, yana gudanar da kayan aikin da ya dace da ISO inda ba a ware simintin yashi ba - an ƙera shi tare da injinan CNC, magani mai zafi, da ingantaccen ingancin saman. Sakamakon? Simintin gyare-gyaren da aka ƙera *don* aikin ƙarshe-ba kawai cikon ƙura ba. Misali, T800 cobalt-based winch center shaft rollers suna jujjuya yanayin sanyaya mai sarrafawa *kafin* ingantattun injina don rage yawan damuwa-don haka ƙasa ta ƙarshe ta OD ta kasance tsakanin 0.02 mm jimlar karatun nuna alama (TIR) ƙarƙashin nauyin radial 120 MPa.
Wannan matakin sarrafawa yana farawa tare da lissafin albarkatun ƙasa. Kowane zafi na AMS 5387 alloy yana zuwa tare da cikakkun rahotannin gwajin niƙa-kuma kowane ƙuri'a ana tabbatar da shi akan wurin ta amfani da sikirin OES kafin zubawa. Babu ware. Simintin gyare-gyaren ƙarfe na ƙarfe suna amfani da bokan EN-GJS-400-15 baƙin ƙarfe, amma mahimmanci, suna sa ido kan nodularity * a ainihin lokacin * yayin jiyya na narkewa-ba kawai bayan-zuba ba. Abin da ya sa tushen famfo su ya sami> 92% nodularity akai-akai, har ma a cikin sassan da ya fi kauri fiye da mm 120.
Haɗin kai tsaye shine anka na aiki na biyu. Yawancin OEMs suna fitar da simintin simintin gyare-gyare, injina, da ƙarewa ga masu siye daban-daban guda uku. QINGDAO QIANGSENYUAN yana yin duka ukun a ƙarƙashin rufin ɗaya - tare da raba bayanan kayan aiki, ƙa'idodin dubawa aiki tare, da fasfo ɗin kayan haɗin kai. Lokacin da abokin ciniki ya ƙaddamar da zane don jikin bawul ɗin matsa lamba tare da matsananciyar wurin zama (± 0.05 mm zuwa datum A), ƙungiyar ba ta ba da “simintin komai ba” zuwa injina. Suna tsara tsarin gating * tare da saitin machining na ƙarshe a zuciya *, tabbatar da sanyawa mai tashiwa yana guje wa tsangwama tare da mahimman abubuwan daidaitawa. Wannan yana yanke sake yin aiki da kashi 68% akan abubuwan gini na farko, dangane da bayanan ciki na 2023 a cikin oda 142 na kayan ruwa.
Wasu na iya jayayya cewa simintin yashi ba zai iya daidaita simintin saka hannun jari ba don hadadden geometries. Amma a aikace, daidaitaccen simintin yashi yana samun nasara a inda yawan zafin jiki ya shafi-kamar ɗakunan silinda mai kauri don famfunan piston mai ƙarfi. Hanyoyin zuba jari suna gwagwarmaya tare da raguwar ramuwa sama da kauri na bango na 80 mm; kore-yashi kyawon tsayuwa tare da kwaikwaiyon kwamfuta-kwaikwaiyo solidification ciyar da isar da mafi tsinkaya yawa a cikin wadannan yankuna. QINGDAO QIANGSENYUAN tana amfani da ingantattun ƙirar ƙofofin MAGMASOFT® don kowane sabon ɓangaren simintin yashi-da kuma bincikar giciye da aka yi hasashen raguwar ramuka akan ainihin sakamakon X-ray. Cobalt alloy nozzles, alal misali, suna nuna rashin ƙarfi na ciki a cikin duban rediyo na Class B, har ma da kaurin bangon 110 mm.
Abin da ya raba su daga tushen tushen ƙa'ida shine ƙayyadaddun ƙayyadaddun yanki - ba kawai yarda da gaba ɗaya ba. Ka'idar binciken su don ƙarfe da simintin bakin karfe sun haɗa da gwajin ultrasonic (UT) kowane ASTM E186 don lahani na ƙasa, da ma'aunin abun ciki na ferrite don maki duplex ta amfani da shigar da maganadisu. Don abubuwan haɗin cobalt-nickel, suna ƙara gwajin lalata intergranular ta ASTM A262 Practice E. Kuma kowane ɓangaren da aka gama tare da takaddun shaida yana nuna ainihin taurin, girman hatsi, da abun da ke tattare da sinadarai - ba kawai “ya haɗu da ƙayyadaddun bayanai ba.”
Amintaccen isar da saƙon duniya yana bi ta halitta. Su durƙusa samar da tsare-tsaren kullewa a cikin gubar sau da wuri: 6-8 makonni ga prototypes, 10-12 makonni ga matsakaici-girma runs (50-500 inji mai kwakwalwa), ba tare da wani jadawalin slippage a kan 94% na umarni jigilar kaya a 2023. Wannan daidaito ya zo daga ƙayyadaddun iya aiki kasafi-ba bin tabo umarni-da pre-approved tabo umarni-da pre-approved 5 stock ga A7-500 inji mai kwakwalwa, MS 0.
Idan kuna samo sassa na ƙarfe na al'ada inda gazawar ke nufin raguwar lokaci, haɗarin aminci, ko tunowar filin - duba fiye da yin ginshiƙan juriya. Tambayi yadda OEM yashi simintin gyaran kafa factory yana tabbatar da daidaituwar microstructure a kan tushen famfo mai nauyin kilogiram 200. Tambayi ko nazarin GD&T na su yana nuna yuwuwar murdiya ta haifar da injina *kafin* a yanke tsarin farko. Tambayi ko gano kayan aikin su ya wuce zuwa lambobin zafi guda ɗaya-ba kawai ID ɗin batch ba.
Wannan shine bambanci tsakanin karɓar simintin simintin gyare-gyare-da karɓar kayan aiki mai mahimmanci, manufa mai mahimmanci wanda aka tsara don aiki, ba kawai tsari ba.
