Requirements, classification and characteristics of high-resistance electrical heating alloys

Release time: 2024-03-20

As the name suggests, electric heating alloys are mainly used to manufacture electric heating elements, and their main requirements are:

(1) Large and uniform metre resistance;

(2) Single-phase organisation, no sudden change in resistance within the temperature range of use;

(3) Good oxidation resistance at high temperatures;

(4) Can withstand large surface loads;

(5) Has a small resistance temperature coefficient;

(6) In the hot and cold state have good mechanical properties;

(7) Good resistance to high temperature creep limit;

(8) strong corrosion resistance to certain media;

(9) Small linear (expansion) coefficient;

(10) Good weldability;

(11) high service temperature, long life ------- This is a comprehensive indicator.

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