New high-resistance electrical heating alloy material and preparation method thereof

An electrothermal alloy and high-resistance technology, applied in the field of high-resistivity electrothermal alloy materials, Cr20Ni80Zr materials in the technical field of metal materials, to achieve the effects of ensuring safety and reliability, reducing costs, and good high-temperature strength

Active Publication Date: 2011-09-21
JIANGSU XINHUA ALLOY ELECTRIC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the existing e

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  • New high-resistance electrical heating alloy material and preparation method thereof
  • New high-resistance electrical heating alloy material and preparation method thereof
  • New high-resistance electrical heating alloy material and preparation method thereof

Examples

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Example Embodiment

[0051] The following non-limiting examples are used to further illustrate the present invention and understand the present invention.

[0052] Five sets of examples are prepared for a novel high-resistance electric heating alloy material of the present invention, and the furnace numbers are: 113-0006, 0007, 0008, 0009, 0010. The composition and content of the new high-resistance electric heating alloy materials in the group of Examples 1-5 are calculated in% by weight, as shown in the following:

[0053] The first group: Heat number: 113-0006 C: 0.04%; Si: 1.35%; Mn: 0.20%; P: 0.010%; S: 0.006%; Cr: 22.5%; Ni: 74.5%; Al: 0.20%; Fe: 0.2%; Ti: 0.03%; Zr: 0.38%; mixed rare earth: 0.30%.

[0054] The second group: Heat number: 113-0007 C: 0.03%; Si: 1.20%; Mn: 0.30%; P: 0.008%; S: 0.005%; Cr: 22.0%; Ni: 74.6%; Al: 0.22%; Fe: 0.3%; Ti: 0.05%; Zr: 0.45%; mixed rare earth: 0.25%.

[0055] The third group: Heat number: 113-0008 C: 0.05%; Si: 1.25%; Mn: 0.40%; P: 0.008%; S: 0.004%; Cr: 21.5%...

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Abstract

The invention discloses a new high-resistance electrical heating alloy material and a preparation method thereof. The material comprises the following components by weight percent: 0.01-0.06% of C, 1.0-1.5% of Si, 0.1-0.6% of Mn, less than or equal to 0.02% of P, less than or equal to 0.015% of S, 20-23% of Cr, 74.0-78.0% of Ni, 0.1-0.25% of Al, 0.2-1.0% of Fe, 0.01-0.2% of Ti, 0.2-0.8% of Zr and the balance of inevitable impurities. The preparation method comprises the steps of smelting, forging, wiring, annealing, rinsing, drawing and the like. Compared with Cr20Ni80, the prepared new high-resistance electrical heating alloy material has better oxidation resistance and is an electrical heating alloy material with low thermal expansion coefficient, good high temperature strength, long service life and high resistivity.

Description

technical field [0001] The invention relates to a high-resistivity electrothermal alloy material in the technical field of metal materials, in particular to a [0002] A novel high-resistance electrothermal alloy material and a preparation method thereof. It specifically relates to a Cr20Ni80Zr material, which is mainly used as an electrothermal alloy material for household appliances, industrial electric furnaces and heating elements. Background technique [0003] Electrothermal alloy is a functional material that converts electrical energy into heat energy. Its maximum service temperature can reach 1400 ° C. It is used to manufacture various electric heating elements in the fields of metallurgy, machinery, petrochemical, electrical, construction, military industry, and household appliances. At present, electrothermal alloy materials have become an important engineering alloy material and occupy an important position in the national economy. With the development of the ho...

Claims

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Application Information

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IPC IPC(8): C22C19/05
Inventor 华大凤王树平
Owner JIANGSU XINHUA ALLOY ELECTRIC
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