Xajmiyo kala duwan oo Shiineys ah oo Chromel Alumel Bare ah oo loogu talagalay Soo-saarista iyo Warshadda Dareemayaasha Heerkulka Nooca K

Cabbirro kala duwan oo Chromel Alumel Bare ah oo loogu talagalay Dareemaha Heerkulka Nooca K

Sharaxaad Gaaban:

Heerkulku waa dareeme loo isticmaalo cabbiraadda heerkulka. Heerkulku wuxuu ka kooban yahay laba lugood oo silig ah oo laga sameeyay biro kala duwan. Lugaha fiilooyinka ayaa lagu dhejiyaa dhinac, taasoo abuureysa isgoys. Isgoyskani waa meesha lagu cabbiro heerkulka. Marka isgoysku uu la kulmo isbeddel heerkulka ah, waxaa la sameeyaa danab. Danabka waxaa markaa lagu fasiri karaa iyadoo la isticmaalayo jaantusyada tixraaca thermocouple si loo xisaabiyo heerkulka.
Siligga kuleylka NiCr-NiAl (Nooca K) wuxuu helaa isticmaalka ugu ballaaran dhammaan kuleyliyaha birta salka ah, heerkulka ka sarreeya 500 °C.

Noo soo dir emayl

Faahfaahinta Badeecada

Su'aalaha Badiya La Weydiiyo

Calaamadaha Alaabta

Cabbirro kala duwan oo Chromel Alumel Bare ah oo loogu talagalay Dareemaha Heerkulka Nooca K

Nooca K (CHROMEL vs ALUMEL) waxaa loo isticmaalaa jawiga oksaydhaynta, aan firfircoonayn ama qalalan. Soo-gaadhista faakuumka oo ku kooban muddooyin gaaban. Waa in laga ilaaliyaa jawiga sulfurous iyo oksaydhaynta yar. Lagu kalsoonaan karo oo sax ah heerkul sare.

1.KiimikoCku-meel-gaarnimada

Alaab	Halabuurka kiimikada (%)
Alaab	Ni	Cr	Si	Mn	Al
KP (Chrome)	90	10
KN (Alumel)	95		1-2	0.5-1.5	1-1.5

2.Guryaha Jirka iyo Sifooyinka Farsamada

Alaab	Cufnaanta (g/cm3)	Barta dhalaalaysa°C)	Xoogga Laabista (Mpa)	Iska caabinta mugga (μΩ.cm)	Heerka kordhinta (%)
KP (Chrome)	8.5	1427	>490	70.6(20ºC)	>10
KN (Alumel)	8.6	1399	>390	29.4 (20ºC)	>15

3.Kala duwanaanshaha qiimaha EMF heerkulka kala duwan

Alaab	Qiimaha EMF Vs Pt(μV)
Alaab	100ºC	200ºC	300ºC	400ºC	500ºC	600ºC
KP (Chrome)	2816~2896	5938~6018	9298~9378	12729~12821	16156~16266	19532-19676
KN (Alumel)	1218~1262	2140~2180	2849~2893	3600~3644	4403~4463	5271~5331

Qiimaha EMF Vs Pt(μV)
700ºC	800ºC	900ºC	1000ºC	1100ºC
22845~22999	26064~26246	29223~29411	32313~32525	35336~35548
6167~6247	7080~7160	7959~8059	8807~8907	9617~9737

4.Nooca, magaca iyo nooca thermocouples-ka

Nooca	Magacaabista	Heerkulka kuleylka	Heerkulka kuleylka Aqoonsiga Darajada
SC iyo RC	Nikkel naxaas ah oo 0.6 la magdhabay hogaanka magdhowga	Platonic-rhodium 10-platinum Heerkulka kuleylka	S iyo R
SC iyo RC	Nikkel naxaas ah oo 0.6 la magdhabay hogaanka magdhowga	Platonic-rhodium 13-platinum isku-xidhka heerkulka	S iyo R
KCA	Nikkel bir-naxaas ah 22 Magdhow Magdhaw ah Hoggaanka	Nikkel Nikkel-chromium isku-xidhka heerkulka	K
KCB	Magdhawga nikkel bir-naxaas ah 40 oo magdhow ah rasaas
KX	Nickel-chromium 10-nickel 3 dheer Fiilada Rasaasta/Fiilada Magdhawga ah
NC	Rasaasta magdhawga ah ee nickel-ka birta ah ee 18	Qalabka kuleylka ee Nickel-chromium silicon-nickel	N
NX	Nikkel-chromium 14 silicon-nickel 4 dheer Fiilada rasaasta magdhowga ah / fiilada magdhowga ah	Qalabka kuleylka ee Nickel-chromium silicon-nickel	N
EX	Nickel-chromium 10-nickel 45 dheer Fiilada rasaasta magdhowga ah / fiilada magdhowga ah	Nickel-chromium-cupronickel isku-xidhka heerkulka	E
JX	Nikkel bir-naxaas ah oo 45 ah oo magdhow dheer leh Fiilada rasaasta / magdhawga	Heerkulka kuleylka ee joogtada ah ee birta ah	J
TX	Bir-nickel-chromium 45 oo magdhow dheer leh Fiilada rasaasta / magdhawga	Naxaas-joogto ah isku-xidhka heerkulka	T