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Electrothermal alloy iron, chromium and aluminum wire material and preparation method thereof

A technology of iron-chromium-aluminum wire and electrothermal alloy, which is applied in heat treatment equipment, heat treatment furnaces, manufacturing tools, etc., can solve problems such as poor plasticity and toughness, poor processing performance, creep deformation, etc., and achieve good processing performance and stable product performance , the effect of prolonging the service life

Inactive Publication Date: 2020-04-24
JIANGSU XINHUA ALLOY ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, iron-chromium-aluminum alloys still have deficiencies, such as low high-temperature strength, prone to creep deformation; high brittleness, poor plasticity and toughness, and poor processability; after high-temperature use, the grain grows and becomes brittle, and the higher the temperature, The longer the time, the more serious the embrittlement after cooling, and this change is irreversible

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] An electrothermal alloy iron-chromium-aluminum wire, in terms of weight percentage, the composition of the electrothermal alloy iron-chromium-aluminum wire is as follows:

[0031] C: 0.045%; Si: 0.17%; Mn: 0.50%; P: 0.02%; S: 0.015%; Cr: 24.0%; Al: 5.5%; Ti: 0.10%; The amount is Fe.

[0032] Further, the electrothermal alloy iron-chromium-aluminum wire is 0Cr25AL5.

[0033] Further, a method for preparing an electrothermal alloy iron-chromium-aluminum wire includes the following steps:

[0034] S1 intermediate frequency smelting: the alloy raw materials are accurately proportioned according to the predetermined weight ratio, and other raw materials except Al, (La+Ce) and Ti are put into the intermediate frequency smelting furnace for melting to obtain molten steel.

[0035] S2 Electroslag remelting (refining): put slag into molten steel for deoxidation and slagging, the amount of slag accounts for 3% of the molten steel, the slag is lime and fluorite, the refining tem...

Embodiment 2

[0043] An electrothermal alloy iron-chromium-aluminum wire, in terms of weight percentage, the composition of the electrothermal alloy iron-chromium-aluminum wire is as follows:

[0044]C: 0.035%; Si: 0.20%; Mn: 0.45%; P: 0.015%; S: 0.013%; Cr: 23.65%; Al: 6.0%; Ti: 0.10%; The amount is Fe.

[0045] Further, the electrothermal alloy iron-chromium-aluminum wire is 0Cr25AL5.

[0046] Further, a method for preparing an electrothermal alloy iron-chromium-aluminum wire includes the following steps:

[0047] S1 intermediate frequency smelting: the alloy raw materials are accurately proportioned according to the predetermined weight ratio, and other raw materials except Al, (La+Ce) and Ti are put into the intermediate frequency smelting furnace for melting to obtain molten steel.

[0048] S2 Electroslag remelting (refining): put slag into molten steel for deoxidation and slagging, the amount of slag accounts for 3% of the molten steel, the slag is lime and fluorite, the refining te...

Embodiment 3

[0056] An electrothermal alloy iron-chromium-aluminum wire, in terms of weight percentage, the composition of the electrothermal alloy iron-chromium-aluminum wire is as follows:

[0057] C: 0.035%; Si: 0.40%; Mn: 0.250%; P: 0.015%; S: 0.016%; Cr: 23%; Al: 4.0%; Ti: 0.10%; The amount is Fe.

[0058] Further, the electrothermal alloy iron-chromium-aluminum wire is 0Cr25AL5.

[0059] Further, a method for preparing an electrothermal alloy iron-chromium-aluminum wire includes the following steps:

[0060] S1 intermediate frequency smelting: the alloy raw materials are accurately proportioned according to the predetermined weight ratio, and other raw materials except Al, (La+Ce) and Ti are put into the intermediate frequency smelting furnace for melting to obtain molten steel.

[0061] S2 Electroslag remelting (refining): put slag into molten steel for deoxidation and slagging, the amount of slag accounts for 3% of the molten steel, the slag is lime and fluorite, the refining tem...

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Abstract

The invention provides an electrothermal alloy iron, chromium and aluminum wire material and a preparation method thereof. The preparation method comprises the following steps: S1, intermediate frequency smelting; S2, electroslag remelting (refining); S3, forging; S4, hot rolling; S5, annealing; and S6, wire drawing and intermediate annealing. With adoption of the preparation method, the iron, chromium and aluminum wire material with excellent mechanical property and oxidization resistance and long service life can be manufactured and can be widely applied in various fields of electronic devices, automobile parts and the like.

Description

technical field [0001] The invention relates to the technical field of electrothermal alloy preparation, in particular to an electrothermal alloy iron-chromium-aluminum wire and a preparation method thereof. Background technique [0002] With the rapid development of my country's industrial technology, metallurgy, electronics, machinery industry and metal heat treatment departments have higher and higher requirements for electrothermal alloys. Electric heating alloys refer to resistance alloys that use the resistance properties of metals to make heating elements, including nickel-chromium alloys and iron-chromium-aluminum alloys, which are suitable for electric heating elements that work in the temperature range of 950-1400 ° C. Industrial electric furnaces, laboratory electric furnaces and household appliances, etc. [0003] Compared with similar electrothermal alloys, iron-chromium-aluminum alloys have a large resistivity coefficient, a small resistance temperature coeffi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/04C21D1/26C21D6/00C21D8/06C21D9/52C22C38/02C22C38/04C22C38/06C22C38/28B21C37/04
CPCB21C37/047C21D1/26C21D6/002C21D6/005C21D6/008C21D8/065C21D9/525C22C33/04C22C38/002C22C38/005C22C38/02C22C38/04C22C38/06C22C38/28
Inventor 邵兴明华大凤王方王树平刘威陈杰华鹏
Owner JIANGSU XINHUA ALLOY ELECTRIC
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