DIN 17745 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 pas nrig) siv los ntawmInvar, 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.
| Tswj Kev nthuav dav thiab iav Sealing Alloys | |||
| German tus qauv tooj | Lub npe lag luam | DIN | UNS |
| 1.3912 ib | Alloy 36 | 17745 ib | K93600/93601 |
| 1.3917 ib | Alloy 42 | 17745 ib | k94100 ua |
| 1.3922 ib | Alloy 48 | 17745 ib | k94800 ua |
| 1.3981 ib | Pernifer 2918 | 17745 ib | k94610 ua |
| 2.4478 ib | Neeb 47 | 17745 ib | N14052 |
| 2.4486 ib | NiFe47 Cr | 17745 ib | - |
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 tsum tau 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 |
