Karakteristika električna upornost električno ogrevanje zlitina upornost ostane stabilna med servisna življenjska doba:

Karakteristika električna upornost električno ogrevanje zlitina upornost ostane stabilna med servisna življenjska doba:

The upornost od ogrevanje element bi moralo ostati stabilno med uporabo. The manjši the upornost sprememba is, the manjša upornost sprememba od element in sprememba elektrika moč za ogrevanje so so majhni, to zagotavljanje a dobro in stabilno ogrevanje kakovost.

Electric heating alloys will cause changes in resistivity due to changes in chemical composition and precipitation of compounds along grain boundaries or within grains at high temperatures. Nickel-chromium and nickel-chromium-iron alloys are relatively stable in metallographic structure at high temperatures, so the resistivity is stable during long-term use. On the contrary, the stability of iron-chromium-aluminum alloys is relatively poor, mainly because the aluminum content in the alloy decreases successively, resulting in changes in resistivity.

Karakteristika električna upornost električno ogrevanje zlitina upornost ostane stabilna med servisna življenjska doba:

Electric heating alloys will cause changes in resistivity due to changes in chemical composition and precipitation of compounds along grain boundaries or within grains at high temperatures. Nickel-chromium and nickel-chromium-iron alloys are relatively stable in metallographic structure at high temperatures, so the resistivity is stable during long-term use. On the contrary, the stability of iron-chromium-aluminum alloys is relatively poor, mainly because the aluminum content in the alloy decreases successively, resulting in changes in resistivity.

Značilnosti od električna upornost električni ogrevanje zlitine visoka upornost vrednost:

Električno ogrevanje zlitina materiali bi moralo biti prvo imeti a relativno upornost. The električno ogrevanje element izdelano visoko upornost material ima visoko elektrotermično pretvorbo učinkovitost; prostornina od električni ogrevanje element is small; zlitina material is shranjeno; velika moč hitro ogrevanje lahko be realizirano. It is posebej pomembno kdaj načrtovanje an električno ogrevanje peč z visoka temperatura, visoka moč in majhna velikost.

Kdaj projektiranje električno ogrevanje elementi, in princip, visoka temperatura komponente bi morale biti izdelane zlitine materiali z visoka upornost, in nizke temperature komponente bi morale biti izdelane zlitine materialov z nižjo upornost.