Fa'amatalaga o oloa
Ituaiga B Thermocouple Uaea
Vaaiga lautele o oloa
Ituaiga B thermocouple uaea o se maualuga-faatinoga uʻamea thermocouple e aofia ai lua platinum-rhodium alloys: o se vae lelei ma 30% rhodium ma 70% platinum, ma se vae le lelei ma le 6% rhodium ma 94% platinum. Fuafuaina mo si'osi'omaga e sili atu le vevela, e sili atu le vevela i totonu o thermocouples u'amea taua, sili atu i le mautu ma le fa'ama'iina o le vevela i le vevela e sili atu i le 1500°C. O lona tu'ufa'atasi lua-platinum-rhodium tu'ufa'atasi e fa'aitiitia ai le tafetafea e mafua mai i le fa'asao o le platinum, ma fa'alelei ai mo le fuaina o le vevela umi.
Fa'ailoga Tulaga
- Ituaiga Thermocouple: B-ituaiga (Platinum-Rhodium 30-Platinum-Rhodium 6)
- IEC Tulaga: IEC 60584-1
- ASTM Tulaga: ASTM E230
- Fa'ailoga Lanu: vae lelei - efuefu; vae le lelei - paepae (i le IEC 60751)
Vaega Autu
- Tete'e Tete'e Tele: Fa'aumiumi fa'agaoioiga vevela e o'o atu i le 1600°C; fa'aoga pupuu e o'o i le 1800°C
- EMF maualalo ile vevela maualalo: la'ititi le thermoelectric i lalo ole 50°C, fa'aitiitia le a'afiaga ole feso'ota'iga malulu.
- Maualuluga Maualuluga-Suavai mautu: ≤0.1% tafetafea pe a uma 1000 itula ile 1600°C
- Oxidation Resistance: Faʻatinoina lelei i le faʻamaʻiina o le ea; tete'e i le fa'asao o le platinum
- Malosi Fa'ainisinia: Fa'atumauina le gaogao i le maualuga o le vevela, talafeagai mo siosiomaga tau alamanuia faigata
Fa'amatalaga Fa'apitoa
Uiga | Taua |
Uaea lapoa | 0.5mm, 0.8mm, 1.0mm (faapalepale: -0.02mm) |
Malosi'i eletise (1000°C) | 0.643 mV (vs 0°C fa'asinomaga) |
Malosi'i eletise (1800°C) | 13.820 mV (vs 0°C fa'asinomaga) |
Tempera Fa'agaioiga Umi | 1600°C |
Tempera Fa'agaioiga Pu'upu'u | 1800°C (≤10 itula) |
Malosi (20°C) | ≥150 MPa |
Fa'aumiumi | ≥20% |
Tete'e eletise (20°C) | Vaevae lelei: 0.31 Ω·mm²/m; Leaga vae: 0.19 Ω·mm²/m |
Tulaga Fa'ainumera (Masa masani, %)
Fa'atonu | Elemene Autu | Elemene Su'esu'e (max,%) |
Vae lelei (Platinum-Rhodium 30) | Pt:70, Rh:30 | Ir:0.02, Ru:0.01, Fe:0.003, Cu:0.001 |
Vae Leaga (Platinum-Rhodium 6) | Pt:94, Rh:6 | Ir:0.02, Ru:0.01, Fe:0.003, Cu:0.001 |
Fa'amatalaga o oloa
Aitema | Fa'amatalaga |
Umi i le ta'ele | 5m, 10m, 20m (ona o le maualuga o le uamea taua) |
Fa'ai'uga | Fa'alili, susulu (leai se fa'aleagaina o luga) |
afifiina | Vacuum-faamaufaailogaina i pusa titanium tumu argon e puipuia ai oxidation |
Fa'avasegaina | E mafai ona su'eina i tulaga fa'ava-o-malo o le vevela ma fa'ailoga EMF fa'amaonia |
Filifiliga Fa'apitoa | Sa'o le tipiina, fa'alelei luga mo talosaga maualuga-mama |
Talosaga masani
- Ogaumu fa'asuavai maualuga (keramic ma refractory mea)
- Fa'aliusuavai u'amea (superalloy ma fa'apitoa fa'ameamea)
- Gaosi tioata (ofu fau tioata fa'afefe)
- Fa'ata'ita'iga o le fa'aosoina o le va'alele (laupapa afi afi)
- Alamanuia faaniukilia (mata'ituina le vevela maualuga)
Matou te tu'uina atu ituaiga B fa'apotopotoga thermocouple fa'atasi ai ma paipa puipui sima ma feso'ota'iga vevela maualuga. Ona o le maualuga o meafaitino, o le umi o faʻataʻitaʻiga e faʻatapulaʻaina i le 0.5-1m i luga ole talosaga, faʻatasi ma tusi faʻamaonia atoatoa ma lipoti o suʻesuʻega le mama. O fa'atonuga fa'apitoa mo si'osi'omaga o le ogaumu fa'apitoa e maua.
Muamua: Tau falegaosimea Nikeli mama 212 uaea pa'u'ese'ese (Ni212) Sosoo ai: Falegaosimea-Tu'usa'o-Fa'atau-Maualuga-Ni80Cr20-Uaea