Ma'anar Wayar Constantan
Alloy mai juriya mai matsakaicin juriya da ƙarancin zafin jiki mai juriya tare da lanƙwasa mai faɗi/zazzabi akan kewayon da ya fi faɗi fiye da "manganins". Wayar Alloy ta CuNi44 kuma tana nuna juriya mai kyau ta lalata fiye da ganins na mutum. Amfanin yana iyakance ga da'irori na ac. Wayar Alloy ta Copper CuNi44/ CuNi40 /CuNi45 Constantan ita ce sinadari mara kyau na nau'in J thermocouple tare da Iron shine mai kyau; ana amfani da thermocouples na nau'in J a aikace-aikacen maganin zafi. Hakanan, shine sinadari mara kyau na nau'in T thermocouple tare da OFHC Copper mai kyau; ana amfani da thermocouples na nau'in T a yanayin zafi mai sanyi.
Abubuwan Sinadarai (%)CuNi44
| Ni | Mn | Fe | Si | Cu | Wani | Umarnin ROHS | |||
| Cd | Pb | Hg | Cr | ||||||
| 44 | 1.50% | 0.5 | - | Bal | - | ND | ND | ND | ND |
Kayayyakin InjiCuNi44
| Matsakaicin Yanayin Sabis na Ci gaba | 400 ºC |
| Juriyar yanayi a 20ºC | 0.49 ± 5% ohm*mm2/m |
| Yawan yawa | 8.9 g/cm3 |
| Ma'aunin Juriya na Zafin Jiki | < -6 × 10-6/ºC |
| EMF VS Cu (0~100ºC) | -43 μV/ºC |
| Wurin narkewa | 1280 ºC |
| Ƙarfin Taurin Kai | Min 420 Mpa |
| Ƙarawa | Mafi ƙarancin 25% |
| Tsarin Micrographic | Austenite |
| Kadarar Magnetic | A'a. |
Siffofin samfurin:
1) Kyakkyawan ƙarfin hana iskar shaka da ƙarfin injiniya a babban zafin jiki;
2) Babban juriya da ƙarancin zafin jiki na juriya;
3) Kyakkyawan aiki mai kyau da kuma sauƙin sarrafawa;
4) Kyakkyawan aikin walda
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