FeNi Nickel Iron alloy mwatsatanetsatane 0.5mmInvar 36 Wayakwa Kusindikiza Chida Cholondola
INVAR 36ndi nickel-iron, aloyi yowonjezera yotsika yokhala ndi 36% nickel. Imasunga Miyeso yokhazikika Pamitundu yosiyanasiyana ya kutentha kwa mlengalenga, ndipo imakhala ndi coefficient yotsika yowonjezera kuchokera ku kutentha kwa cryogenic kufika pafupifupi 500 ° F. Alloy imakhalanso ndi mphamvu zabwino komanso zolimba pa kutentha kwa cryogenic.
INVAR 36ikhoza kukhala yotentha komanso yozizira kupangidwa ndikupangidwa ndi makina pogwiritsa ntchito njira zofanana ndi
zitsulo zosapanga dzimbiri za austenitic. INVAR 36 imatha kuwotcherera pogwiritsa ntchito Filler Metal CF36 yomwe ili
kupezeka muwaya wopanda kanthu panjira zonse za GTAW ndi GMAW.
Chemical zikuchokera
kupanga | % | Fe | Ni | Mn | C | P | S | SI |
zomwe zili | min | Bali | 35.0 | 0.2 | ||||
max | 37.0 | 0.6 | 0.05 | 0.02 | 0.02 | 0.3 |
katundu wakuthupi
Kuchulukana (g/cm3) 8.1 |
Kulimbana ndi magetsi pa 20ºC(mm2/m) 0.78 |
Kutentha kwa resistivity(20ºC~200ºC)X10-6/ºC 3.7~3.9 |
Thermal conductivity, λ/W/(m*ºC) 11 |
Curie point Tc/ºC 230 |
Elastic Modulus, E/Gpa 144 |
Malo osungunuka ºC 1430 |
Coefficient yowonjezera
θ/ºC | α1/10-6ºC-1 | θ/ºC | α1/10-6ºC-1 |
20-60 | 1.8 | 20-250 | 3.6 |
20-40 | 1.8 | 20-300 | 5.2 |
20-20 | 1.6 | 20-350 | 6.5 |
20~-0 | 1.6 | 20-400 | 7.8 |
20-50 | 1.1 | 20-450 | 8.9 |
20-100 | 1.4 | 20-500 | 9.7 |
20-150 | 1.9 | 20-550 | 10.4 |
20-200 | 2.5 | 20-600 | 11.0 |
Zofananira Zamakina
Kulimba kwamakokedwe | Elongation |
Mpa | % |
641 | 14 |
689 | 9 |
731 | 8 |
Kutentha kwaRkusistivity
Kutentha, ºC | 20-50 | 20-100 | 20-200 | 20-300 | 20-400 |
aR/ 103 *ºC | 1.8 | 1.7 | 1.4 | 1.2 | 1.0 |
Njira yochizira kutentha | |
Annealing kuti muchepetse nkhawa | Kutenthetsa mpaka 530 ~ 550ºC ndikugwira 1 ~ 2 h. Kuzizira pansi |
kuchepetsa | Pofuna kuthetsa kuumitsa, zomwe zibweretsedwe mozizira, zozizira zojambula. Annealing imafuna kutentha mpaka 830 ~ 880ºC mu vacuum, gwirani 30 min. |
Njira yokhazikika | Muzoteteza media ndi kutentha kwa 830 ºC, gwirani 20min. ~ 1h, kuzimitsa Chifukwa cha kupsinjika komwe kumapangidwa ndi kuzimitsa, kutentha mpaka 315ºC, gwirani 1 ~ 4h. |
Kusamalitsa | Sangakhoze kuumitsa ndi kutentha mankhwala Kuchiza pamwamba kungakhale sandblasting, kupukuta kapena pickling. Aloyi angagwiritsidwe ntchito 25% hydrochloric asidi pickling njira pa 70 ºC kuchotsa oxidized pamwamba. |