4J36 (Invar) amagwiritsidwa ntchito pamene kukhazikika kwapamwamba kumafunika, monga zida zolondola, mawotchi, zoyezera kugwedezeka kwamphamvu, mafelemu a chigoba cha kanema wawayilesi, ma valve muma motors, ndi mawotchi a antimagnetic. Pakuwunika nthaka, pamene kukwera kwapamwamba (kwapamwamba-kulondola) koyenera kuchitidwa, ogwira ntchito a Level (ndondomeko) amagwiritsidwa ntchito ndi Invar, m'malo mwa matabwa, fiberglass, kapena zitsulo zina. Ma invar struts adagwiritsidwa ntchito m'mapistoni ena kuti achepetse kukula kwawo kwamafuta mkati mwa masilinda awo.
4J36 gwiritsani ntchito kuwotcherera kwa oxyacetylene, kuwotcherera arc yamagetsi, kuwotcherera ndi njira zina zowotcherera. Popeza coefficient wa kukula ndi zikuchokera mankhwala a aloyi zikugwirizana ayenera kupewa chifukwa kuwotcherera kumayambitsa kusintha zikuchokera aloyi, ndi bwino kugwiritsa ntchito Argon Arc kuwotcherera zitsulo filler makamaka lili 0,5% kuti 1.5% titaniyamu, kuti kuchepetsa weld porosity ndi crack.
Zomwe zili bwino%
Ni | 35-37.0 | Fe | Bali. | Co | - | Si | ≤0.3 |
Mo | - | Cu | - | Cr | - | Mn | 0.2-0.6 |
C | ≤0.05 | P | ≤0.02 | S | ≤0.02 |
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 |
Kuchulukana (g/cm3) | 8.1 |
Kulimbana ndi magetsi pa 20ºC(OMmm2/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 |
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 |
|
Kusamalitsa |
|
Zofananira Zamakina
Kulimba kwamakokedwe | Elongation |
Mpa | % |
641 | 14 |
689 | 9 |
731 | 8 |
Kutentha kwa resistivity
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 |