Nkọwa ngwaahịa:
A na-eji ngwaahịa a na-achịkwa ọkụ ọkụ dị iche iche na-ekpo ọkụ ọkụ, iji zere kọntaktị nke nsonaazụ ọkụ na-ere ọkụ ma ọ bụ iji zere mmebi nke gas na-ekpo ọkụ na-ekpo ọkụ. Usoro (ntụgharị nke elding ọkụ ma ọ bụ ike eletriki) na-etinye n'ime refractory ígwè tube na ka ego nke okpomọkụ radiate site mgbidi tube. A na-akpọ ngwaọrụ a dị ka tube ikpo ọkụ.

Electrothermal heater tube ga-emechi kpo oku mmewere na jaket, mgbe electrify na okpomọkụ elu, okpomọkụ na-na-directed radiated ka ọkụ liner na workpiece ga-ewe iwe site bushing. A na-eji ọkụ ọkụ na-ekpo ọkụ na-ekpo ọkụ na-eji ọkụ na-echebe aural na corrodent aural, dị ka ọkụ na-aga n'ihu, ọkụ rola, olulu ọkụ.

Uru nke tube:
Enwere ike ijide n'aka njikwa nke aural n'ime ọkụ.
Njikwa okpomọkụ, ikpokọta na maintainace dị nnọọ mma ma nwee ike dị mfe mechie.
A na-abawanye cubage nke hearth ma na-emeziwanye mmepụta ya n'ihi enweghị ite muffle
Ike kpo oku siri ike na arụmọrụ dị elu
A na-echekwa ihe igwe refractory.
Ihe nke tube:
Ihe electrothermal alloy nke tube kpo oku na-etinye kwesịrị ịbụ nke nguzogide dị elu. Ntughari pasent nke galvanothermy dị elu. N'ihi na a na-etinye tube na-ekpo ọkụ n'ime ọhịa, usoro nke nnyefe okpomọkụ dị iche na nke ụdị ọkụ ọkụ na-emeghe. Ọta ọkụ ya buru ibu. A ghaghị ịchịkwa okpomọkụ nke mmewere n'oge okpomọkụ na-ebili, iji zere njem nlegharị anya okpomọkụ nke mmewere.
Mgbe a na-emechi tube na-ekpo ọkụ ma na-ekpo ọkụ, okpomọkụ dị elu nke ihe ọkụkụ dị elu dị elu karịa okpomọkụ nke hearth site na 100 C ~ 150 C. Ya mere, okpomọkụ nke ọkụ ọkụ na ikuku okpomọkụ nke ọkụ dị mkpa iji nyochaa. Họrọ ihe kpo oku ziri ezi.
Igwe kpo oku nke ụlọ ọrụ gongtao mepụtara na-etinyekarị Cr20Ni80, Cr25A15, Cr21A16Nb, Cr27A17Mo2 ect.