Mafotokozedwe Akatundu
Mtundu B Thermocouple Waya
Chidule cha Zamalonda
Waya wa thermocouple wa Type B ndi thermocouple yachitsulo chamtengo wapatali yogwira ntchito kwambiri yokhala ndi ma alloy awiri a platinum-rhodium: mwendo wabwino wokhala ndi 30% rhodium ndi 70% platinum, ndi mwendo woipa wokhala ndi 6% rhodium ndi 94% platinum. Yopangidwa kuti igwiritsidwe ntchito m'malo otentha kwambiri, ndi thermocouple yachitsulo chamtengo wapatali yolimba kwambiri, yolimba komanso yolimba pa kutentha kopitilira 1500°C. Kapangidwe kake kapadera ka dual-platinum-rhodium kamachepetsa kusunthika komwe kumachitika chifukwa cha kuphulika kwa platinum, zomwe zimapangitsa kuti ikhale yoyenera kuyeza kutentha kwa nthawi yayitali.
Maonekedwe Okhazikika
- Mtundu wa Thermocouple: Mtundu wa B (Platinum-Rhodium 30-Platinum-Rhodium 6)
- Muyezo wa IEC: IEC 60584-1
- Muyezo wa ASTM: ASTM E230
- Kulemba Mitundu: Mwendo wabwino - imvi; Mwendo woipa - woyera (malinga ndi IEC 60751)
Zinthu Zofunika Kwambiri
- Kukana Kutentha Kwambiri: Kutentha kwa nthawi yayitali mpaka 1600°C; kugwiritsa ntchito kwakanthawi kochepa mpaka 1800°C
- EMF Yotsika pa Kutentha Kotsika: Mphamvu yochepa ya thermoelectric yotsika pansi pa 50°C, kuchepetsa kusokonekera kwa malo ozizira
- Kukhazikika Kwambiri pa Kutentha Kwambiri: ≤0.1% kusuntha pambuyo pa maola 1000 pa 1600°C
- Kukana Kusungunuka kwa Oxidation: Kuchita bwino kwambiri mumlengalenga wosungunuka; kukana kusungunuka kwa platinamu
- Mphamvu ya Makina: Imasunga kusinthasintha kutentha kwambiri, yoyenera malo ovuta a mafakitale
Mafotokozedwe Aukadaulo
| Khalidwe | Mtengo |
| Waya awiri | 0.5mm, 0.8mm, 1.0mm (kulekerera: -0.02mm) |
| Mphamvu ya Thermoelectric (1000°C) | 0.643 mV (motsutsana ndi 0°C reference) |
| Mphamvu ya Thermoelectric (1800°C) | 13.820 mV (motsutsana ndi 0°C reference) |
| Kutentha kwa Ntchito Kwanthawi Yaitali | 1600°C |
| Kutentha Kwakanthawi Kochepa | 1800°C (≤maola 10) |
| Mphamvu Yokoka (20°C) | ≥150 MPa |
| Kutalikitsa | ≥20% |
| Kukana kwa Magetsi (20°C) | Mwendo wabwino: 0.31 Ω·mm²/m; Mwendo woipa: 0.19 Ω·mm²/m |
Kapangidwe ka Mankhwala (Kawirikawiri, %)
| Woyendetsa | Zinthu Zazikulu | Zinthu Zotsatizana (zosakwana, %) |
| Mwendo Wabwino (Platinum-Rhodium 30) | Gawo: 70, Rh: 30 | Ir:0.02, Ru:0.01, Fe:0.003, Cu:0.001 |
| Mwendo Woipa (Platinum-Rhodium 6) | Gawo: 94, Rh: 6 | Ir:0.02, Ru:0.01, Fe:0.003, Cu:0.001 |
Zofotokozera Zamalonda
| Chinthu | Kufotokozera |
| Kutalika pa Spool iliyonse | 5m, 10m, 20m (chifukwa cha kuchuluka kwa chitsulo chamtengo wapatali) |
| Kumaliza Pamwamba | Yopindika, yowala (yopanda kuipitsidwa pamwamba) |
| Kulongedza | Chotsekedwa mu zotengera za titaniyamu zodzazidwa ndi argon kuti zisawonongeke ndi okosijeni |
| Kulinganiza | Zitha kutsatiridwa ndi miyezo yapadziko lonse lapansi ya kutentha ndi ma curve ovomerezeka a EMF |
| Zosankha Zamakonda | Kudula bwino kwambiri, kupukuta pamwamba pa ntchito zoyera kwambiri |
Mapulogalamu Odziwika
- Zitsulo zotenthetsera kutentha kwambiri (zipangizo za ceramic ndi refractory)
- Kusungunula zitsulo (superalloy ndi kupanga chitsulo chapadera)
- Kupanga magalasi (magalasi oyandama opangira ng'anjo)
- Kuyesa kuyendetsa ndege (ma nozzles a injini ya roketi)
- Makampani a nyukiliya (kuyang'anira kutentha kwambiri kwa riyakitala)
Timapereka ma thermocouple a Type B okhala ndi machubu oteteza ceramic ndi zolumikizira kutentha kwambiri. Chifukwa cha mtengo wapamwamba wa zinthu, kutalika kwa zitsanzo kumakhala kochepa mpaka 0.5-1m ngati tipempha, limodzi ndi zikalata zonse za zinthu ndi malipoti owunikira zodetsa. Makonzedwe apadera a malo enaake a uvuni amapezeka.
Yapitayi: Mtengo wa Fakitale Woyera wa Nickel 212 Manganese Stranded Waya (Ni212) Ena: Kugulitsa Mwachindunji kwa Mafakitale-Kugwira Ntchito Mwapamwamba-Ni80Cr20-Waya