Nickel Chromium Hlau Ni80Cr20 + Nb Alloy Hlau Zoo Kub Siab Tiv Thaiv Rau Cua Sov
Nickel Chromium Hlau Ni80Cr20 + Nb Alloy Hlau Zoo Kub Siab Tiv Thaiv Rau Cua Sov
Cov ntaub ntawv khoom:
Cov Tshuaj Muaj Peev Xwm: Nickel 80%, Chrome 20% + Nb
Xwm txheej: Ci ntsa iab / Acid dawb / Oxidied xim
Txoj kab uas hla: Yuav tsum tau kho
Tuam Tshoj NiCr Alloy Hlau Chaw Tsim Khoom
Tshuaj lom neeg muaj pes tsawg leeg thiab cov khoom:
| Qib Khoom | NiCr 80/20 | NiCr 70/30 | NiCr 60/15 | NiCr 35/20 | NiCr 30/20 | |
| Cov Tshuaj Lom Zem Tseem Ceeb (%) | Ni | Bal. | Bal. | 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 | Bal. | Bal. | Bal. | |
| Kub Ua Haujlwm Siab Tshaj (ºC) | 1200 | 1250 | 1150 | 1100 | 1100 | |
| Kev tiv taus ntawm 20ºC (μΩ · m) | 1.09 | 1.18 | 1.12 | 1.04 | 1.04 | |
| Qhov Ceev (g/cm3) | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 | |
| Kev Ua Kub (KJ/m· h· ºC) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
| Cov Coefficient ntawm Thermal Expansion (α × 10-6 / ºC) | 18 | 17 | 17 | 19 | 19 | |
| Melting Point (ºC) | 1400 | 1380 xyoo | 1390 xyoo | 1390 xyoo | 1390 xyoo | |
| Kev ntev (%) | > 20 | > 20 | > 20 | > 20 | > 20 | |
| Cov Qauv Micrographic | austenite | austenite | austenite | austenite | austenite | |
| Khoom Siv Sib Nqus | tsis yog hlau nplaum | tsis yog hlau nplaum | tsis yog hlau nplaum | tsis yog hlau nplaum | tsis yog hlau nplaum | |
Qhov loj li niaj zaus:
Peb muab cov khoom lag luam hauv cov duab ntawm cov hlau, cov hlau tiaj tus, strip. Peb kuj tuaj yeem ua cov khoom siv raws li cov neeg siv khoom thov.
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 → kho qhov chaw → kos duab (dov) → tiav kho cua sov → tshuaj xyuas → pob → tsev rau 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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Judy
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