Zane a samar da foda metallurgy factory ba game da kwafin samfuri ba ne. Yana da game da warware matsalolin injiniya na gaske-hargitsin thermal a cikin sintering, yawa gradients a cikin hadaddun geometries, ko tsari-zuwa-tsari lokacin sarrafa cobalt-nickel gami kamar AMS 5387 ko T800. Mun gina da kuma inganta a kan 12 foda karfe-hade samar Lines ga masana'antu abokan ciniki tun 2016. Kowa ya fara da wannan tambaya: * Menene dole ne wannan layin isar-ba kawai samar?*
Fara da niyyar aiki, ba gudanawar tsari ba
Yawancin masana'antu sun gaza a mataki na 1: suna taswirar kayan aiki kafin ayyana iyakokin aiki. Gidajen bawul na matsa lamba don tsarin na'ura mai aiki da karfin ruwa baya buƙatar "babban yawa" - yana buƙatar daidaituwar radial density uniformity tsakanin ± 0.02 g/cm³ a fadin 120 mm diamita. Tushen famfo yana buƙatar yawan amfanin ƙasa ≥1,420 MPa bayan HIP-amma kawai a cikin yankin flange mai ɗaukar nauyi, ba magudanar hawa ba. Wannan bambance-bambancen yana canza komai: juzu'in juzu'i a cikin ƙaramin ƙaramin matakin kore, ɗimbin raƙuman yanayi, da kuma ko matsananciyar isostatic yana maye gurbin ko kari na yau da kullun.
Mun taɓa sake yin fasalin tanderu na abokin ciniki gabaɗayan saboda ƙirar su ta asali sun yi amfani da sintering na tushen nitrogen don nozzles na cobalt gami. Rashin daidaituwar haɓakar thermal ya haifar da microcracking a bututun ƙarfe - yanki mai mahimmanci 0.3 mm. Canjawa zuwa vacuum sintering tare da sarrafa argon backfill ya rage raguwa daga 22% zuwa 1.7%. Gyaran ba ƙarin aiki da kai ba ne. Ya yi daidai da sarrafa yanayi zuwa aikin lissafi.
Haɗin kai tsaye yana doke fitar da kayayyaki na zamani-lokacin da aka ƙera shi daidai
Wasu dillalai suna siyar da “maganin gyaran gyare-gyare na ƙarfe na ƙarfe” azaman sel waɗanda aka riga aka shirya su: atomizer → latsa → makera tanderu → tashar CMM. Amma wannan samfurin ya yi watsi da yadda aikin simintin gyaran gyare-gyare na kayan aiki a zahiri ke nunawa. Yi la'akari da mahalli na famfo na piston: dole ne a ƙera spline ɗin sa na ciki *bayan* sintering don kiyaye kwanciyar hankali mai girma-amma dole ne a sami saman hawa na waje a ƙasa * kafin* HIP don hana gurɓacewar kayan aiki.
A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., mu gudu biyu zuba jari simintin gyaran kafa da foda karfe Lines karkashin daya ISO-certified rufin-ba don saukaka, amma ga thermal tarihi kula. Lokacin da T800 alloy bangaren ya canza daga kore m zuwa gama sashi, da hatsi tsarin ya samo asali a cikin matakai uku: daure ƙonawa (350-600 ° C), m jihar yaduwa (900-1,150 ° C), da kuma ruwa-lokaci sintering (1,280-1,350 ° C). Cibiyoyin injin ɗin mu na CNC an daidaita su don rama ragowar yanayin damuwa da aka auna * a wurin * yayin sanyaya-bayanan da muke ciyarwa kai tsaye cikin tsararrun hanyoyin kayan aiki.
Wannan ba ka'idar ba ce. Shi ya sa mu AMS 5387 cobalt alloy 6 famfo sassa cimma GD&T Zone yarda da ± 0.008 mm a kan m sealing saman-ba tare da post-HIP machining rework.
Ba a bincika inganci a ciki. An tsara shi cikin halayen kayan aiki
Yawancin tsare-tsaren ingancin ƙarfe na foda suna kula da dubawa azaman ƙofa: wucewa/ gaza a cak na ƙarshe na CMM. Wannan ya yi latti. Bambancin yawa yana farawa a haɗa foda. Abubuwan da ke cikin iskar oxygen sama da 350 ppm a cikin cobalt-nickel pre-alloyed powders yana haifar da samuwar lokaci na tsaka-tsakin tsaka-tsakin lokaci a lokacin sintiri-wanda ba a iya gane shi ta hanyar gani ko daidaitaccen gwajin taurin.
Maganin mu ya ƙunshi tabbatarwa a wuraren da ba za a iya sasantawa ba:
- Rasidin foda: Binciken OES + LECO akan kowane kuri'a; Tabbatar da ganowa zuwa ASTM B243-22
- Tabbatar da ƙarfin kore: Gwajin matsawa na Uniaxial akan ƙaƙƙarfan 5 na farko a kowane motsi-ba kawai yawa ba
- Binciken bayanan martaba na Sintering: Taswirar thermocouple na ainihi a cikin wuraren tanderu, an shigar da kowane tsari
- Sakin microstructure: SEM-EDS akan sassan giciye na samfurori na hadaya daga kowane zagaye na HIP
Ba mu yarda da "takardun shaida." Muna inganta iskar oxygen, nitrogen, carbon, da girman rabo * kanmu *. Domin lokacin da abin nadi na cibiyar winch ya kasa a zagayowar 8,200 maimakon 12,000, tushen tushen ba shi da wuyar yin aiki - foda ce ta sinadarai ta foda wanda aka rufe ta matsakaicin yawan karatun.
Samar da nasarar aikin masana'anta na foda ya dogara da abin da kuka tsallake
Ƙarfafa masana'antu a cikin PM ba game da yanke ƙididdiga ba. Yana da game da cire latency yanke shawara. Abokin ciniki ɗaya ya rage lokacin jagora da 41% ba ta hanyar ƙara latsawa ba-amma ta hanyar kawar da maki uku na handoff tsakanin foda prep, tsarin daidaitawa, da sarrafa jerin gwano. Tsarin su na ERP ba zai iya ɗaukar sauye-sauyen fifiko ba lokacin da odar bawul ɗin bawul mai ƙima ya isa tsakiyar tsari. Mun maye gurbinsa da allon Kanban wanda aka daidaita zuwa samuwa na tanderu na ainihin-da kuma ɗaure lambobi masu yawa na foda zuwa umarnin aikin dijital da ke bayyane akan kowane kwamfutar hannu mai aiki.
Sigina mafi ƙarfi na balagagge samar da foda metallurgy factory ba ƙarar fitarwa ba. Yana da saurin yadda yake dacewa da canji a cikin ƙayyadaddun gami, sabon kiran GD&T, ko tsarin kula da zafi da aka sabunta-duk ba tare da sake duba ka'idojin bincike ba. Wannan saurin ya fito ne daga rubuce-rubuce, haɗin kai mai maimaitawa: tsakanin foda ilimin halittar jiki da ƙirar ƙarfin kore, tsakanin lokacin zama da taswirar porosity na ƙarshe, tsakanin matsa lamba na HIP da raƙuman rayuwar gajiya.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yana gina waɗannan haɗin gwiwar-ba a matsayin ƙirar ƙididdiga ba, amma azaman sigogi masu rai a cikin tsarin aiwatar da samarwa. Muna raba su a bayyane yayin nazarin aikin injiniya saboda ƙirƙira ba takura ba. Yana da girman farko na aiki.
