Lokacin da injiniyoyi suka bayyana karfen simintin gyaran kafa abokan haɗin gwiwa don mahimmin bawul ɗin hydraulic na manufa, gidajen famfo, ko ramukan winch na teku, ba kawai suna buƙatar ƙarfe da aka zuba a cikin wani tsari ba. Suna buƙatar maimaita juzu'i a ƙarƙashin juriyar 0.02 mm. Matsakaicin microstructure a cikin batches 500-kg. Zero abubuwan mamaki a cikin amsawar maganin zafi. Kuma cikakken ganowa-daga AMS 5387 cobalt alloy ingot takaddun shaida zuwa rahoton CMM na ƙarshe.
Mun ga ayyuka da yawa sun jinkirta ta hanyar kafafanoni waɗanda ke ɗaukar simintin ƙarfe azaman tsarin kayayyaki. Ɗaya daga cikin OEM na Arewacin Amurka ya yi asarar watanni uku yana tabbatar da gidaje na famfo na piston saboda ƙirar simintin simintin yashi mai kaya bai yi daidai da ainihin murdiya bayan injin ɗin ba. Wani kamfani na hydraulics na Turai ya soke kashi 17% na farkon samar da shi bayan da ba a iya gano shi ba yayin dubawa na gani - ya haifar da kwararar matsin lamba a mashaya 420. Waɗannan ba lokuta ba ne. Alamun rarrabuwar su ne: simintin simintin gyare-gyaren da aka yi a cikin shago ɗaya, yin injina a wani, ƙarfe na ƙarfe zuwa na uku.
Shi ya sa yanzu sassan da aka sarrafa daidai suke ba da fifiko a haɗa kai tsaye karfen simintin gyaran kafa ayyuka-ba don sarrafa farashi kawai ba, amma don tsinkayar matakin matakin kimiyyar lissafi. A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Kowane karfe da bakin karfe simintin fara da kayan zažužžukan inganci da ASTM A958, EN 10213, ko abokin ciniki ƙayyadadden tensile / tasiri bukatun. Babu juzu'i na "316 bakin" maye gurbin. Idan zanen ku ya yi kira ga UNS S32750 super duplex tare da mafi ƙarancin HRC 45 bayan annealing bayani, rajistan ayyukan tanderun su da rahotannin taswirar taswira suna yin daidai da hakan-ba tambarin wucewa/ gazawa akan takardar tsari ba.
Kayan aikinsu na yarda da ISO yana ɗaukar duka saka hannun jari da simintin yashi-amma kawai inda kowace hanya ta ba da fa'ida mai ƙima. Yin simintin saka hannun jari don nozzles na cobalt alloy na bakin ciki mai buƙatun sarrafa kauri na bango ± 0.05 mm. Yin simintin yashi don manyan injiniyoyin injiniyoyin cibiyar abin hawa, inda adadin sanyaya mai sarrafawa ya hana microcracking a cikin gami na tushen T800. Mahimmanci, machining ba tunani ba ne. Kwayoyin CNC masu axis su da yawa suna zama mita daga bene na simintin. Wannan kusancin yana ba da damar samun sauƙi na danniya nan da nan kafin yin aiki mai tsauri-da madaidaicin ra'ayoyin amsa tsakanin masanan masana'antar ƙarfe da masu shirye-shiryen NC lokacin da shafin yaƙi ya zarce ƙirar tsinkaya.
Ga abin da ya raba su da manyan abubuwan da suka samo asali:
- Alloy discipline, ba gami iri-iri. Ba sa da'awar ƙwarewa a cikin maki 27 na tushen nickel. Suna ƙware AMS 5387, T800, da UNS R30003-musamman don kayan aikin famfo mai matsa lamba inda rarrabuwar carbide ke shafar rayuwar gajiya kai tsaye. Ka'idojin kula da zafi nasu sun haɗa da jinkirin jinkirin ramuwar gayya da aka inganta akan ainihin ɓangaren geometries, ba kawai takardun shaida ba.
- GD&T - masana'anta na farko. Lokacin da kuka ƙaddamar da zane tare da jurewar matsayi akan Ø12 mm bores dangane da jirgin datum, injiniyoyinsu na sake duba tutocin tutoci masu yuwuwar tsangwama * kafin * yarda da tsari-ba bayan binciken labarin farko ya gaza ba. Suna taswirar kowane muhimmin kiran GD&T zuwa takamaiman hanyar binciken CMM, saitin ma'aunin gani, ko na'urar gwajin aiki.
- Babu ingancin "black box" Kowane simintin karfe yana jigilar kaya tare da lissafin dijital: rahotannin gwajin injin niƙa, ƙididdigar ƙira a kowane narke, sigogin zagayowar zafi, bayanan dubawa mai girma (CMM + na gani), da ma'aunin Ra/Rz ƙare saman. Ba taƙaitawa ba. Raw fayiloli. Ana iya ganowa zuwa lambar zafi, ID mai aiki, da lambar serial na inji.
Wasu na iya jayayya cewa kafuwar yanki suna ba da juzu'i cikin sauri. Amma gudun ba tare da tsinkaya ba yana kara tsada. Lokacin jagorar mako 4 da aka gaggauce ba yana nufin komai ba idan tsari na biyu yana buƙatar sake yin aiki saboda ƙididdige ƙididdiga na graphite nodule a cikin simintin ƙarfe na ductile-ko kuma idan abun ciki na simintin ƙarfe na simintin ferrite ya ɓace a waje da kewayon 3-12%, yana daidaita juriyar lalata a sabis ɗin gas mai tsami. QINGDAO QIANGSENYUAN's ruguza aikin gudu ba ya sadaukar da matakan tabbatarwa; yana jera su don hana sake yin aiki. Ana tabbatar da kayan da ke shigowa *kafin* shirya mold. Ana duba ma'auni masu mahimmanci *bayan* rage damuwa amma *kafin* taurin ƙarshe. Gwajin aiki yana faruwa *bayan* gamawar saman-ba azaman ƙofar ƙarshe ba.
Don ƙungiyoyin sayayya suna kimanta a karfen simintin gyaran kafa, Yi tambayoyi uku: Shin za su iya nuna muku rahoton CMM don wani sashi iri ɗaya a cikin lissafi, gami, da ajin haƙuri ga naku? Shin suna riƙe takaddun shaida na yanzu don kasuwannin da kuke so - ASME BPVC Sashe na II don sassan matsa lamba, API 6A don kayan aikin mai, ko PED 2014/68/EU? Kuma mafi mahimmanci: Shin ƙungiyar injiniyoyinsu za su haɗa hannu kan bayanan ƙirƙira zanenku - gami da radiyo da aka ba da shawara, daftarin kusurwoyi, ko gyare-gyaren gating — tare da rubutaccen dalili?
Wannan batu na ƙarshe yana da mahimmanci saboda rashin lahani ba ya samo asali daga zubowa. Suna farawa a cikin ratar ƙira-don-ƙera. Manajojin ayyukan QINGDAO QIANGSENYUAN ba kawai zane-zane ba ne—suna bayyana su. Za su yi alama 0.3 mm radius a kan babban kusurwar damuwa kamar yadda bai isa ga yanayin zafin zafin AMS 5387 ba. Za su ba da shawarar canja wurin ainihin bugu don guje wa kuskure a cikin ɓangaren kauri na 120mm. Wannan ba ɓacin rai ba ne. An ƙididdige raguwar haɗarin da ke goyan bayan shekaru 14 na samar da kayan aikin injin ruwa a Arewacin Amurka, Turai, da kudu maso gabashin Asiya.
Duban gaba, buƙatar hanyoyin haɗaɗɗiyar-inda simintin simintin kusa-net ya dace da ingantattun mashin ɗin-ba zai ragu ba. Gidajen famfo na ƙarni na gaba suna buƙatar hanyoyin gudana na ciki wanda ba zai yuwu a jefar da tsabta ba, duk da haka mawuyaci ga jujjuyawar gargajiya. Makomar ta abokan hulɗa ce waɗanda ke ɗaukar simintin gyare-gyare da injina azaman matsalolin kimiyyar lissafi masu dogaro da juna, ba cibiyoyin farashi ba. QINGDAO QIANGSENYUAN's R&D mayar da hankali kan simintin gyare-gyaren ma'aunin ma'aunin zafi da zafi yana nuna gaskiyar. Takaddun shaida na gaba na turawa NDCAP AC7114 don gwaji mara lalacewa-saboda manyan kayan haɗin ƙarfe masu aiki a 500°C da mashaya 700, “babu lahani da ake iya gani” bai isa ba. Kuna buƙatar takamaiman lokaci na ƙayyadaddun bayanan attenuation ultrasonic.
Idan aikace-aikacenku yana buƙatar rashin daidaituwa akan daidaiton tsari, amincin girman girman, ko gano kayan aiki - to dama karfen simintin gyaran kafa ba shine mafi arha ba. Shi ne wanda takaddun tsarinsa ke karantawa kamar littafin karatun kimiyyar lissafi, wanda rahoton bincikensa yayi kama da littattafan rubutu, kuma injiniyoyinsa suna magana da yaren GD&T da kyau. Wannan madaidaicin ba ya faruwa da haɗari. Injiniyoyi - batch bayan tsari, sashi bayan sashi.
