Stellite 21 Cobalt Bar
Khoom Taw Qhia
Stellite 21 (Alloy 21, UNS R30021, AMS 5385, ISO 5832-3) yog cobalt-chromium-molybdenum alloy nrog cov ntsiab lus tsis tshua muaj carbon tsawg (tsawg dua lossis sib npaug li 0.25%), ua rau nws qib nyuaj tshaj plaws hauv tsev neeg Stellite.
Txhawm rau luv luv piv Stellite 6 thiab 21: Stellite 6 muaj cov ntsiab lus carbon ntawm ib ncig ntawm 1%; thaum nws yog ib qho nyuaj heev, nws kuj yog nkig thiab nquag tawg nyob rau hauv kev cuam tshuam los yog thermal cycling. Alloy 21, nrog rau cov ntsiab lus ntawm cov pa roj carbon monoxide tsuas yog 0.25%, txi ib qho me me ntawm kev hnav tsis kam ua kom muaj zog thiab thermal shock kuj zoo dua li ntawm Stellite 6. Stellite 21 yog kev lag luam -txheej txheem kev xaiv rau nuclear fais fab valve sealing nto, uas yuav tsum tiv taus ntau thermal cycling thiab mechanical shocks ntawm qhib thiab kaw; nws kuj yog cov khoom uas tau xaiv rau cov pob qij txha, uas yuav tsum tau nyob rau ntau xyoo ntawm kev sib txhuam ntawm tib neeg lub cev. Qhov tseeb tias ib qho khoom siv tuaj yeem siv tau rau hauv ob qho tib si nuclear reactors thiab tib neeg lub cev qhia tau hais tias nws txoj kev ntseeg siab thiab biocompatibility tau tiv thaiv qhov kev siv tau nruj tshaj plaws.
Lork Group muab cov lus pom zoo xaiv cov khoom hauv qab no: xaiv Alloy 21 rau kev ua haujlwm uas muaj feem cuam tshuam, thermal cycling, lossis thermal qaug zog; xaiv Stellite 6 rau cov ntawv thov uas muaj cov khoom siv ntshiab huv thiab tsis muaj kev cuam tshuam qhov twg qhov hnyav hnyav yuav tsum tau ua.
Machining thiab Vuam
Stellite 21 yog me ntsis nyuaj rau tshuab dua Stellite 6, txawm tias nws tseem yog cov khoom nyuaj. Cia li khaws cov ntsiab lus hauv qab no.
1. Kev kho cua sov-Txoj kev kho + kev laus; cov khoom yog adjustable.
Nws muaj kev hloov pauv hauv kev kho cua sov. Tom qab kev daws teeb meem, cov khoom siv kuj yog mos (HRC 28-35), ua rau nws haum rau machining. Kev laus ua rau muaj zog ntxiv rau HRC 35-42 thiab txhawb zog, txawm hais tias toughness txo me ntsis. Qhov kev xaiv nyob ntawm qhov kev ua haujlwm: ua qhov tseem ceeb tsawg dua rau kev cuam tshuam, lossis ntau dua rau kev hnav tsis kam.
2. Machining-Yooj yim rau tshuab hauv kev daws teeb meem-kho lub xeev; nyuaj rau txiav cov cuab yeej hauv lub xeev laus.
3. Forging-Forgeable, tab sis nrog lub qhov rais nqaim.
4. Vuam/Hardfacing-Preheating yog qhov tseem ceeb.
Thaum vuam Alloy 21, preheating rau yam tsawg 200℃yog qhov tseem ceeb; welding yam tsis muaj preheating ua rau cov khoom ua rau tawg. Tom qab welding, cov khoom yuav tsum tau txias maj mam es tsis tshuav kom txias lawm. Qhov kev xav tau no nruj dua li qhov ntawd rau Stellite 6 vim tias cov ntsiab lus molybdenum hauv Stellite 21 ua rau nws nkag siab ntau dua rau vuam cov cua sov.
Yog xav paub ntxiv, thov hu rau:
Email:susan@lorkgroup.com
WhatsApp: +86 199 3707 5488
Tshuaj muaj pes tsawg leeg
(UNS R30021 / Stellite 21 Tus nqi zoo)
| keeb | Cov ntsiab lus ntau |
| Ni | 2.0-4.0% |
| Mo | 4.5-6.0% |
| Cr | 26-30% |
| Co | 60-65% |
| Fe | Tsawg dua lossis sib npaug li 3.0% |
| C | 0.20-0.30% |
| Mn | Tsawg dua lossis sib npaug li 1.0% |
Mechanical Properties
(Qhov tseem ceeb)
| Khoom siv | Annealed xeev |
| Tensile zog | 700-900 MPa |
| Lub zog muaj zog (0.2%) | 400-550 MPa |
| Elongation | 8-15% |
| Khoom siv | Hnub nyoog - lub xeev tawv |
| Tensile zog | 900-1100 MPa |
| Lub zog muaj zog (0.2%) | 550-650 MPa |
| Elongation | 8-12% |
Siab -kub muaj zog tuav:Stellite 21 tuav tau zoo heev - qhov kub thiab txias ntawm qhov kub txog li 816℃. Nws cov cobalt matrix yog resistant rau theem transformation ntawm kub kub thiab exhibits zoo oxidation kuj.
Tej kev siv
Stellite 21's cov ntawv thov raug nthuav dav ntau yam ntawm siab -kawg sectors:
- Nuclear zog:Lub rooj zaum thiab cov ntsaws ruaj ruaj rau lub ntsiab chav cais li qub thiab cov twj tso kua mis kev nyab xeeb li qub -qhov kev xaiv zoo tshaj plaws rau ib puag ncig cuam tshuam nrog thermal shock thiab hluav taws xob.
- Aerospace:Turbine cav foob rings, hniav tswv yim, thiab qhia vanes - hnav- cov khoom tiv thaiv rau siab - qhov kub thiab txias (txog 850℃).
- Cov cuab yeej kho mob:Hnav- tiv thaiv qhov chaw tiv thaiv rau cov khoom siv dag zog thiab lub hauv caug pob qij txha, thiab kho hniav kho hniav- biocompatibility validated los ntawm ntau xyoo ntawm kev siv tshuaj kho mob.
- Petrochemicals:Lub siab- lub twj tso kua mis siab plungers, lub tes tsho, lub valve sab hauv, thiab agitator bushings- ua tau raws li qhov yuav tsum tau ua rau kev xeb thiab hnav tsis kam.
- Kub-Ua haujlwm Tooling:Hnav- cov khoom tiv thaiv rau tuag-casting thiab iav pwm-ib tug "lifesaver" nyob rau hauv ib puag ncig uas ua rau thermal qaug zog.
Technical Consultation Ua ntej Quotation
Peb tau sau cov ntsiab lus ntawm cov ntsiab lus tseem ceeb ntawm cov ntsiab lus ntawm Stellite 21-cov ntsiab lus nquag sib tham nyob rau hauv cov lus nug yav dhau los thiab kev txiav txim yuav khoom los pab txhawb kev hais lus sai.
Dimensions: Txoj kab uas hla (feem ntau Φ10-200 mm), ntev
Daim ntawv: Forged pas nrig (dense microstructure, superior zog) vs. cam khwb cia qws ( saj zawg zog zoo)
Qhov xwm txheej: Kev daws- kho (mos; cov neeg siv khoom ua haujlwm tom qab laus) vs. hnub nyoog (cov khoom tiav tawv)
Nto tiav: Dub (raws li -forged/cast), tig, los yog hauv av
Cov ntaub ntawv pov thawj: AMS 5385 yuav tsum tau ntawv pov thawj? Npaj rau kev siv nuclear lossis kev kho mob?
Kev taw qhia txog kev xaiv qhov xwm txheej:
Rau machining complex duab → Solution- kho (muab thiab yooj yim rau tshuab; hnub nyoog tom qab machining)
Rau kev siv ncaj qha raws li cov khoom tiav → Hnub nyoog (nyuaj; twb muaj tus qauv tsim-cov khoom tshwj xeeb)
Rau cov neeg siv khoom uas tsis muaj peev xwm kho cua sov, → Yuav tsum tau yuav cov khoom tiav lawm
Cim npe nrov: Stellite 21, UNS R30021, AMS 538 5, ISO 5832-3, ASTM A732 Gr.21, cobalt bar, ChiStellite 21 cobalt bar manufacturers, hoobkas
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