Kauvcov khoom siv hluav taws xob cua sovmuaj cov cylindrical spirals tsim los ntawm ib lossis ob lub xov hlau resistive ntawm cov hlau alloy tsim nyog nyob ntawm daim ntawv thov.
Nws cov yam ntxwv tseem ceeb suav nrog kev suav nrog cov hlau nickel-chrome alloy cua sov thiab lub zog nruj ntawm -230 V.
Cov ntawv thov ib txwm muaj yog: cov tshuab ziab khaub ncaws, cov cua sov cua, cov qhov cub, thiab lwm yam.
Ntxiv mus, thiab raws li cov hlau sib xyaw uas lawv muaj, peb tuaj yeem paub qhov txawv ntawm peb hom qauv:

• Cov qauv M, nrog rau qhov zoo 20-5 thiab feem ntau yog rau cov qhov cub.
• Cov qauv MS, nrog rau 80-20 zoo thiab muaj txiaj ntsig zoo rau txhua daim ntawv thov.
• Cov qauv MC, nrog rau 20-5 zoo thiab siv rau hauv cov raj quartz thiab infrared.
• Kev piav qhia txog khoom
  QibNi80Cr20, kuj hu ua Nikrothal 8, MWS-650, NiCrA, Tophet A, HAI-NiCr 80,Chromel AAlloy A, N8, Resistohm 80, Stablohm 650, Nichorme V, Nikrothal 80 thiab lwm yam.Cov Ntsiab Lus Tshuaj (%)

  C	P	S	Mn	Si	Cr	Ni	Al	Fe	Lwm yam
  Qhov siab tshaj plaws
  0.03	0.02	0.015	0.60	0.75~1.60	20.0~23.0	Bal.	Siab tshaj plaws 0.50	Siab tshaj 1.0	-

  Cov Khoom Siv Kho Tshuab ntawm nichrome hlau

  Kub Tshaj Plaws Kev Pabcuam Txuas Ntxiv Mus:	1200ºC
  Kev tiv taus 20ºC:	1.09 ohm mm2/m
  Qhov Ceev:	8.4 g/cm3
  Kev Ua Kub:	60.3 KJ/m·h·ºC
  Coefficient ntawm Thermal Expansion:	18 α × 10-6 / ºC
  Melting Point:	1400ºC
  Kev ntev:	Yam tsawg kawg nkaus 20%
  Cov Qauv Micrographic:	Austenite
  Khoom Siv Sib Nqus:	tsis yog hlau nplaum

  Cov Yam Kub thiab Txias ntawm Cov Hluav Taws Xob Resistivity

  20ºC	100ºC	200ºC	300ºC	400ºC	500ºC	600ºC
  1	1.006	1.012	1.018	1.025	1.026	1.018
  700ºC	800ºC	900ºC	1000ºC	1100ºC	1200ºC	1300ºC
  1.01	1.008	1.01	1.014	1.021	1.025	-

  Qhov loj me ntawm Nickel alloy hlau:

  Peb muab cov khoom lag luam hauv cov duab ntawm cov hlau, cov hlau tiaj tus, strip. Peb kuj tuaj yeem ua cov khoom siv raws li cov neeg siv khoom thov.

  Hlau ci thiab dawb - 0.025mm ~ 3mm

  Hlau pickling: 1.8mm ~ 10mm

  Hlau oxidized: 0.6mm ~ 10mm

  Hlau tiaj tus: tuab 0.05mm ~ 1.0mm, dav 0.5mm ~ 5.0mm