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Tankii Soo Saarista fiilada thermocouple nooca B PtRh30-PtRh6
Sharaxaadda Badeecada
Silig Heerkulka Nooca B
Dulmar Guud oo ku saabsan Badeecada
Silig nooca B ah oo ah nooca thermocouple waa qalab kuleyl bir ah oo tayo sare leh oo ka kooban laba walxood oo platinum-rhodium ah: lug togan oo leh 30% rhodium iyo 70% platinum, iyo lug taban oo leh 6% rhodium iyo 94% platinum. Waxaa loogu talagalay jawi heerkul sare oo aad u sarreeya, waa kan ugu adkaysta kulaylka ee ka dhexeeya kuleyliyaha birta qaaliga ah ee caadiga ah, isagoo ku fiican xasilloonida iyo iska caabbinta oksaydhka heerkulka ka sarreeya 1500°C. Halabuurka gaarka ah ee laba-platinum-rhodium wuxuu yareeyaa qulqulka uu keeno uumiga platinum, taasoo ka dhigaysa mid ku habboon cabbiraadda heerkulka sare ee muddada dheer.
Tilmaamaha Caadiga ah
- Nooca Heerkulka: Nooca B (Platinum-Rhodium 30-Platinum-Rhodium 6)
- Heerka IEC: IEC 60584-1
- Heerka ASTM: ASTM E230
- Lambarka Midabka: Lug togan - cawl; Lug taban - caddaan (sida waafaqsan IEC 60751)
Astaamaha Muhiimka ah
- Iska caabinta Heerkulka Ba'an: Heerkulka hawlgalka muddada dheer ilaa 1600°C; isticmaalka muddada gaaban ilaa 1800°C
- EMF hooseeya Heerkulka Hoose: Wax soo saarka ugu yar ee kuleyliyaha korontada ka hooseeya 50°C, taasoo yaraynaysa saameynta khaladaadka isgoyska qabow
- Xasilloonida Heerkulka Sare ee Sare: ≤0.1% hoos u dhac 1000 saacadood ka dib 1600°C
- Iska caabbinta Oxidation: Waxqabad aad u fiican jawiga oksaydhka; u adkaysta uumiga platinum
- Xoogga Farsamada: Waxay ilaalisaa dabacsanaanta heerkulka sare, oo ku habboon deegaannada warshadaha ee adag
Tilmaamaha Farsamada
| Sifada | Qiimaha |
|---|---|
| Dhexroorka silig | 0.5mm, 0.8mm, 1.0mm (dulqaad: -0.02mm) |
| Awoodda Heerkulka Korontada (1000°C) | 0.643 mV (marka la barbar dhigo 0°C tixraaca) |
| Awoodda Heerkulka (1800°C) | 13.820 mV (marka la barbar dhigo 0°C tixraaca) |
| Heerkulka Hawlgalka Muddada Dheer | 1600°C |
| Heerkulka Hawlgalka Muddada Gaaban | 1800°C (≤10 saacadood) |
| Xoogga Jilicsanaanta (20°C) | ≥150 MPa |
| Kordhinta | ≥20% |
| Iska caabinta Korontada (20°C) | Lugta togan: 0.31 Ω·mm²/m; Lugta taban: 0.19 Ω·mm²/m |
Halabuurka Kiimikada (Caadiga, %)
| Kondurka | Qaybaha ugu Muhiimsan | Walxaha raad-raaca (ugu badnaan, %) |
|---|---|---|
| Lugta Togan (Platinum-Rhodium 30) | Pt:70, Rh:30 | Ir:0.02, Ru:0.01, Fee:0.003, Cu:0.001 |
| Lugta taban (Platinum-Rhodium 6) | Pt: 94, Rh: 6 | Ir:0.02, Ru:0.01, Fee:0.003, Cu:0.001 |
Qeexitaannada Badeecada
| Shay | Faahfaahinta |
|---|---|
| Dhererka halkii Spool | 5m, 10m, 20m (sababtoo ah maadada birta qaaliga ah oo sareysa) |
| Dhammaadka Dusha Sare | Buuxsan, dhalaalaya (ma jiraan wax wasakh ah oo dusha sare ah) |
| Baakad | Faakiyuum lagu shaabadeeyay weelal titanium ah oo argon ka buuxa si looga hortago oksaydheynta |
| Habaynta | La socon karo heerarka heerkulka caalamiga ah iyadoo la raacayo qaloocyada EMF ee shahaadaysan |
| Xulashooyinka Gaarka ah | Goynta saxda ah, nadiifinta dusha sare ee codsiyada daahirnimada sare |
Codsiyada Caadiga ah
- Foornooyinka sintering-ka heerkulka sare leh (qalabka dhoobada ah iyo kuwa aan la karin)
- Dhalidda birta (soo saarista birta sare iyo tan gaarka ah)
- Soo saarista galaaska (foornooyinka sameeya galaaska sabeynaya)
- Tijaabada kicinta hawada sare (noocyada matoorka gantaalada)
- Warshadaha nukliyeerka (la socodka fal-galiyaha heerkulka sare)
Waxaan bixinaa qalabka kuleylka nooca B oo leh tuubooyin ilaalin ah oo dhoobo ah iyo isku xirayaasha heerkulka sare leh. Sababtoo ah qiimaha sare ee maaddada, dhererka muunadku wuxuu ku kooban yahay 0.5-1m marka la codsado, oo ay weheliso shahaadooyin dhammaystiran oo agab ah iyo warbixinno falanqayn wasakh ah. Qaabab gaar ah oo loogu talagalay deegaannada foornada gaarka ah ayaa la heli karaa.
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