Wehewehe ʻo Constantan Wire
ʻO ka hui kūʻē me ka pale haʻahaʻa haʻahaʻa a me ke koena wela haʻahaʻa o ke kūpaʻa ʻana me kahi pale pale / pale wela ma kahi ākea ma mua o nā "manganins".ʻOi aku ka maikaʻi o ke kūpaʻa corrosion ma mua o ke kanaka.Hoʻohana ʻia i nā kaapuni ac.ʻO CuNi44/ CuNi40 / CuNi45 Constantan Copper Nickel Alloy Wire ka mea maikaʻi ʻole o ke ʻano J thermocouple me ka hao ka mea maikaʻi;Hoʻohana ʻia nā thermocouple ʻano J i nā noi mālama wela.Eia kekahi, ʻo ia ka mea ʻino o ke ʻano T thermocouple me OFHC Copper ka maikaʻi;Hoʻohana ʻia nā thermocouple type T i nā mahana cryogenic.
Maʻiʻo Kemika(%)CuNi44
Ni | Mn | Fe | Si | Cu | 'ē aʻe | Kuhikuhi ROHS | |||
Cd | Pb | Hg | Cr | ||||||
44 | 1.50% | 0.5 | - | ʻO Bal | - | ND | ND | ND | ND |
Na Waiwai MechanicalCuNi44
Max Hoʻomau lawelawe Temp | 400 ºC |
Kū'ē ma 20ºC | 0.49 ± 5% ohm*mm2/m |
ʻO ka mānoanoa | 8.9 g/cm3 |
Kaulana Mahana o ke kū'ē | < -6 × 10-6/ºC |
EMF VS Cu (0~100ºC) | -43 μV/ºC |
Lae hehee | 1280 ºC |
Ikaika U'i | Min 420 Mpa |
ʻO ka lōʻihi | Min 25% |
Hoʻolālā Micrographic | Austenite |
Waiwai Magnetic | ʻAʻole. |
Nā hiʻohiʻona huahana:
1) ʻO ka anti-oxidation maikaʻi a me ka ikaika mechanical i ke kiʻekiʻe wela;
2) High resistivity a me haʻahaʻa wela coefficient o ke kū'ē;
3) Reelability maikaʻi loa a me ka hana ʻana;
4) maikaʻi kuʻihao performace