Kupanga ufa wachitsulo wapamwamba kwambiri ndi sitepe yoyamba yovuta mu fakitale iliyonse ya ufa wazitsulo-ndipo cholumikizira chofooka kwambiri mu unyolo chikhoza kusokoneza njira iliyonse yotsika. Ku QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., takonza zopitilira 12,000 kg za faifi wa faifi tambala wa cobalt ndi chitsulo chosapanga dzimbiri kwa matupi a hydraulic valve, nyumba zomangira, ndi ma nozzles ogwirizana ndi AMS 5387 kuyambira 2021. zolephera mu magawo aloyi T800; chinyontho choposa 0.08% chinayambitsa kubisala pamwamba pa kutentha kwa isostatic; ndipo kusatsimikizika kwa gulu laogulitsa kumachedwetsa kuwunika katatu kwamakasitomala. Kupanga ufa weniweni padziko lapansi kumafuna zambiri kuposa zida - kumafunikira kuwongolera kwazitsulo, ma protocol obwerezabwereza, komanso kulekerera zero pakusinthasintha.
Atomization: Kumene Chemistry Imakumana ndi Kinematics
Ma atomization a gasi amakhalabe njira yathu yopangira ma aloyi opangidwa ndi cobalt monga T800 ndi AMS 5387-makamaka ngati kukhazikika kwapang'onopang'ono pansi pa 200 MPa hydraulic loads sikungakambirane. Timagwiritsa ntchito nitrogen pa 7.2 MPa pressure ndi 45° melt-stream impingement angle kuti tikwaniritse D.50 = 28-32 μm ndi <5% kukula (>106 μm) zidutswa. Ma atomization amadzi amagwira ntchito popanga zitsulo zopangidwa ndi chitsulo (monga SS316L ya maziko a pampu), koma pokhapokha atakhazikika pambuyo pa atomization annealing pa 950 ° C mu haidrojeni kuti achepetse mpweya wochepera 0.15 wt%. Mwachidziwitso, sitidumpha kuyesa kwa akupanga musanayambe sieving: ngati tinthu tating'onoting'ono tibwereranso mkati mwa masekondi 90 mu isopropyl mowa, timakana zambiri-ngakhale kusanthula kwa sieve kutatha. Izi ndichifukwa choti ma agglomerates amathyoka mosayembekezereka panthawi yophatikizika, ndikupanga ma gradients omwe amayambitsa ming'alu yaying'ono panthawi ya sintering.
Njira ya Rotary Electrode: Pamene Simungakwanitse Kugula ma Oxides
Kwa ma nozzles a cobalt-nickel omwe amagwira ntchito pamwamba pa 650 ° C mu zida zamafuta ndi mpweya, zophatikizira za oxide ndizowopsa. Apa, rotary electrode processing (REP) imapereka zomwe ma atomization a gasi sangathe: pafupi-zero oxygen (<0.02 wt%), morphology yozungulira, ndi kuwongolera kukula kolimba (D10-D90 kutalika <1.8). Timapota maelekitirodi a AMS 5387 pa 12,500 rpm mkati mwa zipinda zotsekemera zomwe zimachitikira 1 × 10−2 mba. Zotsatira zake za ufa zimayenda pa 22 s/50g (Hall Flowmeter), zimanyamula mpaka 62% yowoneka bwino, ndipo sinter ku> 99.2% kachulukidwe kazinthu popanda HIP. Koma REP sipadziko lonse lapansi - timayipewa chifukwa cha chitsulo chomwe chimafuna malo a graphite nucleation. M'malo mwake, timagwiritsa ntchito madzi-atomized Fe-2.5C ufa ndi kulamuliridwa kwa carbon, kenaka onjezerani 0.8% flake graphite panthawi yosakaniza kuti muwonetsetse kuti yunifolomu graphite nodules pambuyo sinter-anneal.
Ma Gates Abwino: Palibe Ufa Wochoka Popanda Kudutsa Zonse Zinayi
Timakhazikitsa zofufuza zinayi zomwe sitingakambirane gulu lililonse la ufa lisanasunthike:
- Kutsimikizira kwa Chemical: ICP-OES motsutsana ndi zolemba zovomerezeka (CRM NIST SRM 1262a ya Co, CRM NIST SRM 3125a ya Ni); kupatuka> 0.15% kumayambitsa kuyesanso kwathunthu
- Kukula kwa tinthu & mawonekedwe: Laser diffraction (Malvern Mastersizer 3000) + kujambula kwa SEM; mawonekedwe> 1.8 kapena kuzungulira <0.7 amaletsa
- Kuyenda & kachulukidwe: Hall Flowmeter + Scott Volumeter; Kuthamanga kuyenera kukhala 18–24 s/50g, kachulukidwe kachulukidwe 2.8–3.1 g/cm³
- Kuwunika kuipitsidwa: Ferrography ya zinyalala zovala zachitsulo; XRF sikani za Cr, Mo, kapena Ti zotsatizana kuchokera pamayendedwe am'mbuyomu
Timalowetsa zotsatira zonse mu dongosolo lathu la ISO 9001-certified MES — ndi kutsata kwathunthu kwazinthu kubwerera ku nambala ya kutentha kwa ingot yaiwisi. Ngati gulu lalephera ngakhale chipata chimodzi, limasinthidwa - osatsitsidwa.
Chifukwa Chake “Kugwira Ntchito” Kumatanthauza Kusinthasintha Kolamuliridwa, Osati Kuthamanga
Mafakitole ena amathamangitsa matani pa ola limodzi. Timathamangitsa kupatuka kokhazikika. Pakupanga kwathu ufa mu ntchito za fakitale ya zitsulo zamafuta, kugwiritsa ntchito bwino kumatanthauza kugwira D50 kusintha kwa ± 0.9 μm kudutsa magulu 10 otsatizana-osati kudula nthawi ya atomization ndi 12%. Chifukwa chiyani? Chifukwa pisitoni pampu yamphamvu nyumba makina makina kuchokera ufa ndi ± 3.2 μm D50 kusiyanasiyana kunawonetsa 22% kuchuluka kwa kutayikira pakuyesa kukakamiza pa bar 350. Timayika ndalama pakuwunika kutentha kwa plasma munthawi yeniyeni, kuwongolera kupanikizika kwa gasi wotsekeka, ndikusintha makina a sieve shaker mawola anayi aliwonse. ROI sichimatuluka mofulumira-ikuchotsa kukonzanso pa $ 4,200 mipando ya cobalt alloy valve.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. amachitira ufa osati ngati zopangira koma monga maziko a DNA a chigawo chilichonse. Kupanga kwathu ufa mu fakitale ya zitsulo zamafuta kumayamba ndi kutsimikizika kwa chemistry ya aloyi, kumapitilira kukhathamiritsa kwa kinematically, ndipo kumatha pokhapokha zipata zinayi zodziyimira pawokha zimatsimikizira kubwereza-osati kamodzi kokha, koma pa kilogalamu iliyonse m'gawo. Umu ndi momwe ma valve opanikizika amapulumuka moyo wautumiki wa maola 15,000 m'mapampu apansi pa nyanja. Umu ndi momwe ma roller a winch center shaft amasungira madzi othamanga pansi pa 8 μm pambuyo pa 500 matenthedwe. Tsogolo limakhala la opanga ufa omwe amapima chipambano osati pa kilogalamu pa kusintha kulikonse—koma m’ma microstructures pa micrometer.
