Tus nqi ntawm cov khoom siv hlau hmoov rau pwm yog dab tsi?

Qhov xwm txheej hauv kev ua lag luam: tus nqi sib txawv hauv cov ntsiab lus ntawm cov khoom siv thiab kev thov
Tam sim no muaj "tsis txaus siab- cov ntaub ntawv kawg thiab cov khoom seem ntawm cov khoom zoo tib yam" hauv kev ua lag luam rau cov hmoov hlau siv hauv pwm. Piv txwv li, nyob rau hauv lub realm ntawm 3D printing pwm, siab - cov ntaub ntawv kev ua tau zoo xws li npib tsib xee- raws li alloys thiab martensitic stainless hlau tau ntev tsis txaus vim yog ntev ntau lawm cycles thiab siab technical barriers; Hauv qhov sib piv, cov hmoov zoo xws li hlau- thiab tooj liab- raws li cov hmoov yog raug rau cov nqi sib tw hnyav vim tias muaj peev xwm dhau.
Los ntawm qhov kev xav ntawm kev lag luam hauv cheeb tsam, qhov kev xav ntawm cov lag luam pwm thiab cov chaw tsim khoom ntawm 3D tshuab luam ntawv tau ua rau Yangtze River Delta thiab Pearl River Delta yog thawj qhov chaw rau kev noj cov hmoov hlau. Raws li cov ntaub ntawv, East Tuam Tshoj suav txog 45% ntawm lub teb chaws tag nrho cov hlau hmoov khoom ntim hauv thawj ib nrab ntawm 2025. Qhov kev thov rau martensitic stainless hlau hmoov tau nce 32% txhua xyoo, uas ua rau cov nqi hauv cheeb tsam nce los ntawm 8% mus rau 10% siab dua lub teb chaws nruab nrab.
Ob lub ntsiab lus uas cuam tshuam rau tus nqi: kev tshuaj xyuas tag nrho cov saw hlau, los ntawm cov khoom siv raw mus rau cov txheej txheem
Ntau yam cuam tshuam rau tus nqi ntawm cov hmoov hlau rau pwm, tab sis cov nram qab no tsib qhov ntev tuaj yeem siv los rhuav tshem nws cov ntsiab lus yooj yim:
1. Cov nqi ntawm cov khoom siv raw: Kev xa cov nqi hloov pauv rau cov hlau hauv paus
Lub hauv paus hlau suav nrog hlau, npib tsib xee, chromium, cobalt, thiab lwm yam yog cov khoom xyaw tseem ceeb ntawm cov hmoov hlau, thiab cov nqi ntawm cov hlau no nyob rau hauv lub ntiaj teb ua lag luam muaj kev cuam tshuam ncaj qha rau cov hmoov cov nqi. Piv txwv li, muaj kev sib raug zoo ntawm tus nqi ntawm LME npib tsib xee thiab tus nqi ntawm electrolytic nickel hmoov. Tus nqi ntawm npib tsib xee-raws li alloy hmoov tau nce nyob rau hauv tandem nrog tus nqi nruab nrab ntawm electrolytic nickel hmoov nyob rau lub Cuaj Hli Ntuj 2025, uas yog 151 yuan / kg, nce 6% txij thaum pib ntawm lub xyoo. Tsis tas li ntawd, ntxiv cov hlau tsis tshua muaj xws li scandium (Sc) tuaj yeem txhim kho cov khoom zoo, tab sis ua li ntawd yuav nce cov hmoov cov nqi rau 3000-4000 yuan / kg, uas yog thawj qhov ua rau tus nqi siab ntawm cov hmoov zoo.
2. Cov txheej txheem kev tsim cov nqi siab tshaj plaws rau kev ua cov hmoov milling.
Lwm lub ntsiab tseem ceeb cuam tshuam cov nqi yog cov txheej txheem milling. Atomization, ntshav rotating electrode (PREP), thiab electrode induced melting gas atomization (EIGA) yog cov txheej txheem tseem ceeb siv niaj hnub no. Vim tias nws cov cuab yeej siv tsawg tsawg thiab kev ua haujlwm zoo heev, atomization txoj kev muaj kev lag luam feem ntau tshaj 60% ntawm lawv. Txawm li cas los xij, vim nws cov hmoov tsis zoo sphericity thiab xav tau kev tshuaj ntsuam xyuas ntxiv, nws ua rau cov hmoov zoo tawm los ntawm tsawg dua 10%, uas ua rau tsis ncaj nce nqi. Ntawm qhov tod tes, tsuas yog qee tus neeg ua lag luam sab saum toj siv cov txheej txheem PREP, txawm hais tias nws tuaj yeem tsim cov hmoov nplej siab nrog D50.<20 μ m. The equipment unit cost approaches 20 million yuan. The product costs between 30% and 50% more than gas-atomized powders.
3. Granularity thiab purity: Tus nqi sib txawv yog tsav los ntawm kev thov ua haujlwm.
Cov pwm qhov kev ua tau zoo yog cuam tshuam ncaj qha los ntawm cov hmoov particle loj thiab tshuaj purity. Siv martensitic stainless hlau hmoov ua piv txwv, tus nqi ntawm cov hmoov zoo (15-45 μ m) siv rau kev xaiv laser melting (SLM) nce mus rau 280 yuan / kg vim ntau - theem airflow kev faib tawm yuav tsum tau, thaum cov hmoov coarse (45-106 μ m) siv rau laser cladding nqi roughly uan. Qhov sib ntxiv ntawm 0.6% mus rau 0.8% scandium keeb yog xav tau yog tias cov khoom yuav tsum tau ua kom tau raws li qhov ntsuas kub ntawm lub zog hauv kev lag luam aerospace, thiab tus nqi ntawm cov hmoov yuav ncav cuag 4000 yuan / kg.
4. Cov ntawv pov thawj zoo thiab kev tshuaj xyuas: Cov nuj nqis ua raws cai ua kom muaj qhov loj me ntawm
Cov hmoov hlau siv los ua pwm yuav tsum ua tau raws li cov qauv thoob ntiaj teb xws li ASTM F3001 thiab ISO 9001. Tsis tas li ntawd, qee cov tub rog - cov ntaub ntawv qib yuav tsum dhau kaum qhov kev xeem, suav nrog cov ntsuas lawv cov microstructure thiab mechanical qualities . 10% mus rau 15% ntawm tus nqi muag khoom yog siv rau thib peb- pov thawj tog. Piv txwv li, vim nws cov ntawv pov thawj NADCAP aerospace, qee qhov chaw tsim khoom ntawm 18Ni300 pwm steel hmoov raug nqi 25% ntau dua li cov khoom tsis tau lees paub.
5. Kev xa khoom thiab ntim khoom: cov nuj nqis uas tsis tau npaj tseg yuav tsis raug tso tseg
Cov hmoov hlau yuav tsum tau ntim rau hauv nitrogen- ntim lossis nqus tsev vacuum- cov roj tsis muaj zog thiab khaws cia hauv cov dej noo- pov thawj, tiv thaiv - ntim khoom zoo li qub. Ib lub thoob ntim cov nqi ntawm tsib caug thiab ob puas yuan ntau dua. Hla - cov nuj nqis ntawm ciam teb yuav raug nce ntxiv los ntawm qhov tseeb tias kev thauj mus los hauv huab cua yog peb mus rau tsib npaug ntau dua li kev thauj mus los hauv av vim yog IATA cov qauv khoom txaus ntshai.
3 Tus nqi ntawm cov khoom siv: suav nrog tag nrho ntau yam los ntawm qis- nqi mus rau kim
Cov hauv qab no yog cov nqi ntawm cov hmoov hlau ntau rau pwm, raws li cov ntaub ntawv kev lag luam thaum lub Cuaj Hlis 2025:
Hom khoom, hom hom, siv cov ntaub ntawv, thiab tus nqi ntau (yuan / kg)
Hmoov ua los ntawm hlau 6.5% Fe 45-80 Si automotive pwm tuag-casting hmoov nrog lub hauv paus tooj liab CuSn10 nickel-raws li alloy hmoov hluav taws xob connector pwm 120-180 800-1200 Ni625 aerospace pwm hmoov rau martensitic stainless hlau Conformal txias dej channel 260-740,
Hmoov pwm steel Tuag-casting pwm 180-240, H13 kub ua hauj lwm pwm, hmoov cobalt chromium alloy Kev kho mob pwm ua los ntawm CoCrMo, customized cog 1500-2000