Uns K93600 Invar 36 Ribbon Precision Expansion Alloy Flat Waya
Mtengo wa K93600 Invar36 Riboni Precision Expansion Alloy Flat Waya
(Dzina Lodziwika:Invar, FeNi36, Invar Standard, Vacodil36)
4J36 (Invar), yomwe imadziwikanso kuti FeNi36 (64FeNi ku US), ndi aloyi yachitsulo ya nickel-iron yodziwika chifukwa cha mphamvu yake yotsika kwambiri yowonjezera kutentha (CTE kapena α).
4J36 (Invar) imagwiritsidwa ntchito pomwe kukhazikika kwapamwamba kumafunika, monga zida zolondola, mawotchi, zoyezera zowuluka, mafelemu a chigoba cha kanema wawayilesi, ma valve mu ma 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 |
Zodziwika bwino zakuthupi
| 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 |
