ʻO ka hana ʻana i ka pauka metala kiʻekiʻe ʻo ia ka hana koʻikoʻi mua i loko o kekahi hale hana metala pauka—a ʻo ka loulou nāwaliwali loa o ke kaulahao hiki ke hoʻololi i kēlā me kēia kaʻina hana i lalo. Ma QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., ua hana mākou ma luna o 12,000 kg o cobalt-nickel a me nā pauka kila kila no nā kino valve hydraulic, nā hale pahū, a me nā nozzles AMS 5387-compliant mai ka makahiki 2021. ʻO ka mea a mākou i aʻo ai ʻaʻole theoretical: inconsistent30% alloys ka hāʻawi ʻole ʻana i ka nui o ka 37% alloys mua. ʻāpana; ʻO ka makū ma luna o 0.08% i hoʻoulu ʻia i ka lua o ka ʻili i ka wā e kaomi isostatic wela; a ua hoʻopaneʻe ka loaʻa ʻana o nā mea hoʻolako i hōʻoia ʻole ʻia. ʻOi aku ka nui o ka hana ʻana i ka pauka honua maoli ma mua o nā mea hana - koi ʻo ia i ka hoʻopaʻi metallurgical, nā kaʻina hana hou, a me ka hoʻomanawanui ʻole no ka loli.
Atomization: Kahi e hui ai ke Kemika i nā Kinematics
Ke hoʻomau nei ka atomization kinoea i kā mākou ala e hele ai no nā alloys pili i ka cobalt e like me T800 a me AMS 5387 — ʻoi aku ka nui inā ʻaʻole hiki ke kūkākūkā ʻia ke kūpaʻa dimensional ma lalo o 200 MPa hydraulic loads. Hoʻohana mākou i ka nitrogen ma 7.2 MPa kaomi a me ka 45° melt-stream impingement angle e hoʻokō i ka D.50 = 28–32 μm me <5% ka nui (>106 μm) nā ʻāpana. Hoʻohana ʻia ka wai atomization no nā pauka kila kila (e laʻa, SS316L no nā kumu pahū), akā ma hope o ka hoʻopili ʻana ma hope o ka hoʻohui ʻana ma 950 ° C i ka hydrogen e hōʻemi i ka ʻike oxygen ma lalo o 0.15 wt%. ʻO ka mea nui, ʻaʻole mākou e hoʻopololei i ka hoʻāʻo hoʻopuehu kani ultrasonic ma mua o ke kānana ʻana: inā e hoʻohui hou nā ʻāpana i loko o 90 kekona i loko o ka waiʻona isopropyl, hōʻole mākou i ka hailona - ʻoiai inā hala ka kānana kānana. ʻO ia no ka mea ʻaʻole i manaʻo ʻia ka haʻihaʻi agglomerates i ka wā o ka compaction, e hana ana i nā gradients density e hoʻomaka i nā micro-cracks i ka wā o ka sintering.
Ke Kaʻina Hana Electrode Rotary: No ka wā ʻaʻole hiki iā ʻoe ke loaʻa nā oxides
No nā nozzles cobalt-nickel e hana ana ma luna o 650 ° C i loko o nā mea hana ʻaila a me ke kinoea, he pōʻino ka hoʻokomo ʻana o ka oxide. Ma ʻaneʻi, hāʻawi ka rotary electrode processing (REP) i ka mea hiki ʻole i ka atomization kinoea: kokoke-zero oxygen (<0.02 wt%), morphology spherical, a me ka mana nui (D10–D90 ka lōʻihi <1.8). Hoʻopili mākou i nā electrodes AMS 5387 ma 12,500 rpm i loko o nā keʻena vacuum i mālama ʻia ma 1 × 10−2 mbar. Holo ka pauda i ka 22 s/50g (Hall Flowmeter), paʻi i ka 62% o ka mānoanoa ʻike, a me nā sinter i> 99.2% theoretical density me ka HIP. Akā ʻaʻole ʻo REP i ke ao holoʻokoʻa - pale mākou iā ia no ka hoʻoheheʻe hao e koi ana i nā pūnaewele nucleation graphite. Akā, hoʻohana mākou i ka pauka Fe-2.5C wai-atomized me ka hoʻokaʻawale kalapona i hoʻopaʻa ʻia, a laila hoʻohui i ka 0.8% flake graphite i ka wā e hui pū ai e hōʻoia i nā nodules graphite like ʻole ma hope o ka sinter-anneal.
ʻO nā ʻīpuka maikaʻi: ʻaʻohe lau pauda me ka hala ʻole o nā ʻehā
Hoʻokō mākou i ʻehā mau wahi hoʻopaʻa ʻole hiki ke hoʻopaʻa ʻia ma mua o ka neʻe ʻana o kekahi pūʻulu pauda i ka hui ʻana:
- Hōʻoia kemika: ICP-OES kū'ē i nā mea kuhikuhi i hōʻoia ʻia (CRM NIST SRM 1262a no Co, CRM NIST SRM 3125a no Ni); ʻo ka hoʻokaʻawale ʻana > 0.15% e hoʻomaka i ka hoʻāʻo hou ʻana
- Ka nui a me ke kinona: Hoʻokaʻawale laser (Malvern Mastersizer 3000) + kiʻi SEM; ratio hiʻona >1.8 a i ʻole ka pōʻai <0.7 ho'olele 'ia
- Kahe a me ka nui: Hall Flowmeter + Scott Volumeter; He 18–24 s/50g ka nui kahe, 2.8–3.1 g/cm³
- Ka nānā ʻana i ka hoʻohaumia: Ferrography no ka ʻōpala ferrous wear; XRF scan no Cr, Mo, a i ole Ti no ka holo mua
Hoʻopaʻa mākou i kēlā me kēia hopena i kā mākou ʻōnaehana MES i hōʻoia ʻia i ka ISO 9001-me ka hiki ke hoʻihoʻi ʻia i ka helu wela ingot. Inā hāʻule ka pūʻulu i hoʻokahi puka, hoʻoheheʻe ʻia - ʻaʻole i hoʻohaʻahaʻa ʻia.
No ke aha ʻo "Efficient" ke ʻano o ka hoʻololi ʻana, ʻaʻole ka wikiwiki
Ke alualu nei kekahi mau hale hana i nā tonage i kēlā me kēia hola. Ke alualu nei mākou i ka deviation maʻamau. I kā mākou hana pauka i nā hana ʻoihana pauka metallurgy, ʻo ia ka mea e paʻa ai ka D50 ʻokoʻa i ± 0.9 μm ma waena o 10 mau pūʻulu ʻokoʻa-ʻaʻole e ʻoki i ka manawa atomization e 12%. No ke aha mai? No ka mea, ua hana ʻia nā hale pahu piston pump cylinder mai ka pauka me ± 3.2 μm D50 Ua hōʻike ka hoʻololi ʻana he 22% kiʻekiʻe ka nui o ka leakage i ka hoʻāʻo ʻana i ke kaomi ma 350 bar. Hoʻolilo mākou i ka nānā ʻana i ka wela o ka plasma manawa maoli, ka hoʻopaʻa ʻana i ke kaomi kinoea pani, a me ka calibration sieve shaker automated i kēlā me kēia 4 hola. ʻAʻole ʻoi aku ka wikiwiki o ka hoʻopuka ʻana o ka ROI - ke hoʻopau nei ia i ka hana hou ʻana ma nā noho pahu pahu kobalt alloy $4,200.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ʻAʻole mālama i ka pauka ma ke ʻano he mea maka akā ma ke ʻano he DNA kumu o kēlā me kēia ʻāpana. Hoʻomaka ka hana ʻana o kā mākou pauka i loko o ka hale hana pauka me ka hōʻoia ʻana i ke kemika alloy, e hoʻomau ʻia ma o ka atomization kinematically optimized, a hoʻopau wale ʻia ma hope o ʻehā mau puka kūʻokoʻa kūʻokoʻa e hōʻoia i ka hana hou ʻana-ʻaʻole hoʻokahi wale nō, akā ma kēlā me kēia kilokika o ka hailona. ʻO ia ke ʻano o ke ola ʻana o nā pahu kaomi i 15,000 mau hola lawelawe i loko o nā paila subsea. ʻO ia ke ʻano o ka mālama ʻana o nā huila winch center shaft i ka holo ʻana ma lalo o 8 μm ma hope o 500 mau pōʻai wela. No nā mea hana pauka ka wā e hiki mai ana ke ana i ka holomua ʻaʻole i nā kilokani no ka hoʻololi—akā ma nā microstructures no ka micrometer.
