Mainjiniya akafuna zida zachitsulo zolondola kwambiri zomwe zimapirira 30,000 psi hydraulic pressure, kukana kuphulika m'mapampu amadzi amchere, kapena kukhalabe okhazikika pakatha kutentha kwa 800 ° C - makina okhazikika kapena kuponyera kufa nthawi zambiri sikulephera. Ndiko kumene kuli koona zitsulo jekeseni akamaumba ndondomeko fakitale amapeza malo ake: osati monga generic supplier, koma monga luso bwenzi bwino fiziki ya fine-grained microstructures, binder burnout kinetics, ndi sintering shrinkage chipukuta misozi.
Tawona makasitomala akutumiza ma prototypes a MIM okhala ndi ± 0.3% kulolerana kwa mzere - kungozindikira pakuyesa kogwira ntchito kuti milomo ya cobalt alloy idapindika pansi pa njinga yamoto. Chifukwa chake? Kusawongolera kokwanira pamitengo yotsitsa ma ramp ndi sintering atmosphere dew point. Ku QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., gawo lililonse la MIM limayamba ndi chiphaso cha AMS 5387 kapena T800-osati data yokhazikika, komanso kuchuluka kwa okosijeni, kagayidwe kake (D50 ≤ 8.2 µm), ndikutsimikizira kachulukidwe kake. Timakana magulu akunja kwa 4.2–4.4 g/cm³. Izi si overkill. Ndi momwe timagwirira ± 0.05 mm pa 12-mm-diameter piston pump silinda nyumba bores pambuyo sintering.
Mafakitale ambiri amawona MIM ngati "ufa + nkhungu + moto." Timazitenga ngati njira zitatu zolumikizidwa mwamphamvu: kapangidwe ka chakudya koyendetsedwa ndi rheology, kamangidwe kake kamene kamapangidwa kuti kakhale kocheperako, komanso kuwongolera motsogozedwa ndi mlengalenga komwe kumayang'anira kuthamanga kwa mpweya wa okosijeni munthawi yeniyeni. Mwachitsanzo, mapulagi athu a cobalt-nickel alloy amafuna mbiri ya sintering: Mphindi 60 pa 1150 ° C mu 5% H₂-95% N₂ kuchotsa mpweya wotsalira, ndiye mphindi 90 pa 1320 ° C mu hydrogen yoyera kuti mukwaniritse> 99.2% kachulukidwe. Dumphani sitepe iliyonse, ndipo kuuma kumatsika kuchoka pa 42 HRC kufika pa 36 HRC—zokwanira kuchititsa kuvala msanga pamipando ya valve yozungulira kwambiri. Timalowetsa parameter iliyonse. Gulu lililonse limakhala ndi kutsatiridwa kwathunthu: gawo la ufa, ma binder, ID ya nkhungu, ng'anjo yotentha, ndi lipoti loyendera la CMM.
Kuphatikiza koyima kumatilekanitsa ndi ma broker. Sitimapereka mwayi wojambula. Sitikupanga makina omaliza. Malo athu ogwirizana ndi ISO amayendetsa MIM pamodzi ndi makina a CNC amitundu isanu, kuponyera ndalama, ndi kutentha kwa vacuum - zonse pansi pa denga limodzi. Makasitomala akatumiza chojambula cha GD&T cha gawo la mpope la AMS 5387 lomwe lili ndi ma callouts enieni pamabowo asanu ndi atatu a Ø3.2 mm okhudzana ndi datum ya Ø25 mm, sitifunsa kuwunikira. Timatsanzira kupatuka kochititsidwa ndi zida, kusintha kupotoza kwa pambuyo pa sintering pogwiritsa ntchito mamapu akale ocheperako, ndikugwiritsa ntchito kutembenuka kopepuka pokhapo pomwe malo osindikizira amafunikira Ra ≤ 0.4 µm. Palibe kukonzanso. Palibe zodabwitsa. Kungotsatira chiphaso choyamba.
Kutumiza kwapadziko lonse lapansi kumatengera zomwe zimachitika chisanachitike kuwombera koyamba. Tapendanso zojambula zokwana 1,200 za MIM kuyambira 2020-ndipo tapeza mfundo zitatu zolephera mobwerezabwereza: zochepetsera zomwe zimafuna ma electrode a EDM ozama m'malo mwa chitsulo chokhazikika cha nkhungu, kusintha kwa khoma kupitirira 3: chiŵerengero cha 1 (kuchititsa kuchepa kwa kusiyana), ndi mabowo akhungu akuya kuposa 4 × m'mimba mwake (kutsekera binder). Gulu lathu lauinjiniya limayimilira izi powunikiranso zisanapangidwe - kwaulere - ndikupangira ma tweaks a geometry omwe amachepetsa mtengo ndi 22% pafupifupi. Makasitomala m'modzi wa zida zamafuta aku North America adachepetsa nthawi yotsogolera kuchoka pa masabata 14 mpaka masabata 6.5 titatengera malingaliro athu a DFM.
Ngati ntchito yanu ikufuna kubwerezabwereza mayunitsi 5,000, kusasinthika kwazitsulo m'magulu 20, kapena kutsimikizika kogwira ntchito kupitilira ASTM B962, mufunika zambiri kuposa fakitale yopangira jakisoni wachitsulo. Mukufuna mnzanu yemwe amachitira gilamu iliyonse ya cobalt alloy ngati chida choyezera-ndipo amayesa kupambana osati m'mabokosi otumizidwa, koma paziro zolephera pambuyo pa maola 10,000 ogwirira ntchito. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. amamanga chitsimikizo chimenecho mu sitepe iliyonse ya ndondomeko. Osati monga chiphunzitso. Monga kuchita tsiku ndi tsiku.
