Kev Tshaj Lij Tsim Khoom ntawmNicr8020 + Zr Alloy HlauHlau Nickel Chrome Uas Muaj Kev Tiv Thaiv Siab
Cov lus piav qhia txog khoom:
Cov Tshuaj Muaj Peev Xwm: Nickel 80%, Chrome 20% + Zr
Xwm txheej: Ci ntsa iab / Acid dawb / Oxidied xim
Txoj kab uas hla: Raws li tus neeg siv khoom xav tau
Tuam Tshoj NiCr Alloy Hlau Tsim Khoom
Tshuaj lom neeg muaj pes tsawg leeg thiab cov khoom:
| Kev Ua Tau Zoo ntawm Cov Hlau | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 | |
|---|---|---|---|---|---|---|
| Cov Tshuaj Tseem Ceeb Kev sau ua ke | Ni | So | So | 55.0-61.0 | 34.0-37.0 | 30.0-34.0 |
| Cr | 20.0-23.0 | 28.0-31.0 | 15.0-18.0 | 18.0-21.0 | 18.0-21.0 | |
| Fe | ≤1.0 | ≤1.0 | So | So | So | |
| Kev Pabcuam Txuas Ntxiv Mus Ntev Tshaj Plaws Kub ntawm Cov Khoom (°C) | 1200 | 1250 | 1150 | 1100 | 1100 | |
| Kev tiv taus ntawm 20 ° C (μΩ·m) | 1.09 | 1.18 | 1.12 | 1 | 1.04 | |
| Qhov Ceev (g/cm³) | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 | |
| Kev Ua Kub (KJ/m·h·°C) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
| Coefficient ntawm Linear Kev nthuav dav (α × 10⁻⁶ / ° C) | 18 | 17 | 17 | 19 | 19 | |
| Qhov Kub Yaj (Kwv yees li) (°C) | 1400 | 1380 xyoo | 1390 xyoo | 1390 xyoo | 1390 xyoo | |
| Kev ntev ntawm kev tawg (%) | >20 | >20 | >20 | >20 | >20 | |
| Cov Qauv Micrographic | austenite | austenite | austenite | austenite | austenite | |
| Cov Khoom Sib Nqus | tsis yog hlau nplaum | tsis yog hlau nplaum | Lub zog sib nqus tsis muaj zog | Lub zog sib nqus tsis muaj zog | tsis yog hlau nplaum |
Qhov loj li niaj zaus:
Peb muab cov khoom lag luam ua cov duab ntawm cov hlau, cov hlau tiaj tus, thiab cov kab txaij. Peb tuaj yeem txhawb kev hloov kho;
Hlau ci ntsa iab, annealed, mos mos - 0.025mm ~ 5mm
Acid pickling dawb hlau: 1.8mm ~ 10mm
Hlau oxidized: 0.6mm ~ 10mm
Hlau tiaj tus: tuab 0.05mm ~ 1.0mm, dav 0.5mm ~ 5.0mm
Txheej Txheem:
Hlau: Khoom siv npaj → yaj → rov yaj → forging → kub dov → kho cua sov
→ Kev kho qhov chaw → Kev kos duab (dov) → Kev kho cua sov tiav → Kev tshuaj xyuas → Pob → Tsev khaws khoom
Cov yam ntxwv ntawm cov khoom:
1) Zoo heev tiv thaiv oxidation thiab lub zog kho tshuab ntawm qhov kub siab;
2) Kev tiv taus siab thiab coefficient kub tsawg ntawm kev tiv taus;
3) Kev rov ua dua zoo heev thiab kev ua tau zoo;
4) Kev ua tau zoo heev ntawm kev vuam
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