Types and characteristics of high-temperature electric furnace wires for electric heating tubes

Types and characteristics of high-temperature electric furnace wires for electric heating tubes

High temperature electric furnaces can be used as heat treatment furnaces for workpieces. By setting different heating and insulation temperatures, different heat treatment requirements can be met. The heating principle is primarily to use heating elements to heat the environment inside the furnace chamber, thus achieving the intention of heating workpieces. In many cases, the heating elements used in high temperature electric furnaces are alloy electric furnace wires. In order to better understand the high temperature electric furnace, Here, Mr. Gu from Yancheng Yuheng Electric Heating Technology Co., Ltd. will organize and introduce the information about high-temperature electric furnace wires.

1, Varieties of high-temperature electric furnace wires

There are two main types of high-temperature electric furnace wires, one is iron chromium aluminum alloy electric furnace wire, and the other is nickel chromium alloy electric furnace wire. Iron chromium aluminum alloy electric furnace wire is an alloy material arranged in ferrite, while nickel chromium alloy electric furnace wire belongs to the alloy material arranged in austenite.

2, Characteristics of Different Electric Furnace Wires

1. Iron chromium aluminum alloy electric furnace wire

(1) The operating temperature is high, such as the maximum operating temperature of HRE iron chromium aluminum alloy wire in the atmosphere reaching 1400 degree , which means that the maximum temperature of the electric furnace can reach 1400 degree . If it is necessary to plan an experimental electric furnace that exceeds this temperature, other electric furnace wires need to be selected;

(2) Long service life;

(3) The promised surface load is high;

(4) Good antioxidant performance, the AI2O3 film generated after oxidation has excellent chemical resistance and high resistivity, with a specific gravity smaller than that of nickel chromium alloy and high resistivity;

(5) Good sulfur resistance;

(6) The price is significantly lower than nickel chromium alloy.

2. Nickel chromium alloy electric furnace wire

(1) High strength at high temperatures;

(2) After long-term use and further cooling, the data will not become brittle;

(3) The radiation rate of nickel alloy after abundant oxidation is higher than that of iron chromium aluminum alloy;

(4) Non magnetic;

(5) Besides sulfur atmosphere, it has good corrosion resistance.