4j36 Invar Alloy Hlau Tsawg Expansion Alloy Feni36 Hlau
4J36 (Invar) yog siv qhov kev ruaj ntseg siab, xws li cov cuab yeej precision, moos, seismic creep gauges, TV duab ntxoov ntxoo-mask thav duab, li qub hauv motors, thiab antimagnetic watches. Hauv kev soj ntsuam av, thaum thawj qhov kev txiav txim siab (high-precision) nce qib yuav tsum tau ua, cov neeg ua haujlwm Theem (leveling rod) siv yog ua los ntawm Invar, tsis yog ntoo, fiberglass, lossis lwm yam hlau. Invar struts tau siv nyob rau hauv qee lub pistons los txwv lawv cov thermal expansion hauv lawv lub tog raj kheej.
4J36 siv oxyacetylene vuam, hluav taws xob arc vuam, vuam thiab lwm yam vuam txoj kev. Txij li cov coefficient ntawm kev nthuav dav thiab tshuaj lom neeg muaj pes tsawg leeg ntawm cov hlau yuav tsum raug zam vim qhov vuam ua rau muaj kev hloov pauv ntawm cov hlau alloy, nws yog qhov zoo dua los siv Argon arc vuam vuam welding muab tub lim hlau nyiam dua muaj 0.5% mus rau 1.5% titanium, thiaj li. txo weld porosity thiab tawg.
Muaj pes tsawg leeg%
| Ni | 35-37.0 Nws | Fe | Bal. | Co | - | Si | ≤0.3 |
| Mo | - | Cu | - | Cr | - | Mn | 0.2 ~ 0.6 hli |
| C | ≤ 0.05 | P | ≤ 0.02 | S | ≤ 0.02 |
Coefficient ntawm expansion
| θ/ºC | 1/10-6ºC-1 | θ/ºC | 1/10-6ºC-1 |
| 20-60 Nws | 1.8 | 20-250 | 3.6 |
| 20-40 Nws | 1.8 | 20-300 Nws | 5.2 |
| 20-20 : kuv | 1.6 | 20-350 Nws | 6.5 |
| 20 ~ 0 | 1.6 | 20-400 Nws | 7.8 ib |
| 20 ~ 50 | 1.1 | 20-450 Nws | 8.9 ib |
| 20-100 Nws | 1.4 | 20-500 Nws | 9.7 ib |
| 20-150 Nws | 1.9 | 20-550 Nws | 10.4 |
| 20-200 Nws | 2.5 | 20-600 Nws | 11.0 Nws |
Hom Lub cev muaj zog
| Qhov ceev (g / cm3) | 8.1 |
| Hluav taws xob tiv taus ntawm 20ºC (OMmm2 / m) | 0.78 ib |
| Qhov ntsuas kub ntawm kev tiv thaiv (20ºC ~ 200ºC) X 10-6 / ºC | 3.7-3.9 Nws |
| Thermal conductivity, λ / W / (m * ºC) | 11 |
| Curie point Tc/ºC | 230 |
| Elastic Modulus, E / Gpa | 144 |
| Cov txheej txheem kev kho cua sov | |
| Annealing rau kev ntxhov siab | Kub rau 530 ~ 550ºC thiab tuav 1 ~ 2 teev. Txias cia |
| annealing | Nyob rau hauv thiaj li yuav tshem tawm hardening, uas yuav coj tawm nyob rau hauv txias-dov, txias txheej txheem. Annealing xav tau cua sov rau 830 ~ 880ºC hauv lub tshuab nqus tsev, tuav 30 feeb. |
| Cov txheej txheem stabilization |
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| Cov kev ceev faj |
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Hom Mechanical Properties
| Tensile zog | Elongation |
| Mpa | % |
| 641 ib | 14 |
| 689 ib | 9 |
| 731 ib | 8 |
Kub ntsuas ntawm resistivity
| Qhov kub thiab txias, ºC | 20 ~ 50 | 20-100 Nws | 20-200 Nws | 20-300 Nws | 20-400 Nws |
| aR / 103 * ºC | 1.8 | 1.7 | 1.4 | 1.2 | 1.0 |
