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Nickel-chromium alloy with good toughness and high resistance and preparation method of nickel-chromium alloy

A nickel-chromium alloy, good toughness technology, applied in the field of alloys, can solve the problems of unfavorable use and promotion of nickel-chromium alloy wire, poor toughness and short service life of nickel-chromium alloy, and achieve good surface oxidation resistance, improved toughness, high The effect of resistivity

Inactive Publication Date: 2021-03-30
丹阳盛龙电热化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main chemical components of nickel-chromium alloy are nickel and chromium, which can be widely used in metallurgy, household appliances, machinery manufacturing, etc. as heating elements and electrical appliances as resistance materials, but because of nickel, the price is relatively high. Short life is not conducive to the use and promotion of nickel-chromium alloy wire
However, the existing nickel-chromium alloys generally have the problem of poor toughness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A nickel-chromium alloy with good toughness and high electrical resistance, its main components are: Al1-2%, Ti0.5-1%, Sn0.4-0.6%, Zr0.2-0.3%, Si0.3 -0.5%, Sb0.05-0.1%, Cr30-32%, the balance is Ni and unavoidable impurities.

[0024] The preparation method of above-mentioned nickel-chromium alloy comprises the steps:

[0025] According to the mass percentage of each component of the alloy, the nickel, chromium and aluminum are put into the melting furnace for melting operation. The temperature of the melting furnace is controlled at 3500-4000 °C. After the alloy melt is produced, the temperature of the melting furnace is controlled at 1500-1800 °C;

[0026] Melting the remaining elemental metals to be added under the protection of an inert gas outside the melting furnace, and then adding them into the alloy melt; cooling the alloy melt and stretching it into a nickel-chromium alloy wire.

[0027] The resistivity of the nickel-chromium alloy in Example 1: 1.23±0.05uΩ.m,...

Embodiment 2

[0029] A nickel-chromium alloy with good toughness and high electrical resistance, its main components are: Al1-2%, Ti0.5-1%, Sn0.4-0.6%, Zr0.2-0.3%, Si0.3 -0.5%, Sb0.05-0.1%, Cr30-32%, the balance is Ni and unavoidable impurities.

[0030] The preparation method of above-mentioned nickel-chromium alloy comprises the steps:

[0031] According to the mass percentage of each component of the alloy, the nickel, chromium and aluminum are put into the melting furnace for melting operation. The temperature of the melting furnace is controlled at 3500-4000 °C. After the alloy melt is produced, the temperature of the melting furnace is controlled at 1500-1800 °C;

[0032] Melting the remaining elemental metals to be added under the protection of an inert gas outside the melting furnace, and then adding them into the alloy melt; cooling the alloy melt and stretching it into a nickel-chromium alloy wire.

[0033] The resistivity of the nickel-chromium alloy in Example 2: 1.40±0.05uΩ.m,...

Embodiment 3

[0035] A nickel-chromium alloy with good toughness and high electrical resistance, its main components are: Al1-2%, Ti0.5-1%, Sn0.4-0.6%, Zr0.2-0.3%, Si0.3 -0.5%, Sb0.05-0.1%, Cr30-32%, the balance is Ni and unavoidable impurities.

[0036] The preparation method of above-mentioned nickel-chromium alloy comprises the steps:

[0037] According to the mass percentage of each component of the alloy, the nickel, chromium and aluminum are put into the melting furnace for melting operation. The temperature of the melting furnace is controlled at 3500-4000 °C. After the alloy melt is produced, the temperature of the melting furnace is controlled at 1500-1800 °C;

[0038] Melting the remaining elemental metals to be added under the protection of an inert gas outside the melting furnace, and then adding them into the alloy melt; cooling the alloy melt and stretching it into a nickel-chromium alloy wire.

[0039] The resistivity of the nickel-chromium alloy in Example 3: 1.28±0.05uΩ.m,...

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Abstract

The invention discloses a nickel-chromium alloy with good toughness and high resistance and a preparation method of the nickel-chromium alloy. The nickel-chromium alloy is divided into two different alloys in percentage by mass: Cr30 Ni70 and Cr20 Ni80. The Cr30 Ni70 comprises the following main components: 1-2 percent of Al, 0.5-1 percent of Ti, 0.4-0.6 percent of Sn, 0.2-0.3 percent of Zr, 0.3-0.5 percent of Si, 0.05-0.1 percent of Sb, 30-32 percent of Cr and the balance Ni and inevitable impurities. By combining the influence of different elements on the performance of the alloy and the synergistic effect of the elements, the proportion of the alloy elements is reasonably adjusted, the prepared nickel-chromium alloy has high resistivity and good surface oxidation resistance, the alloy structure is more stable, grains are refined, and the toughness is improved.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a nickel-chromium alloy with good toughness and high electrical resistance and a preparation method thereof. Background technique [0002] Electrothermal alloy is an important functional alloy material. With the development of my country's domestic economy, the demand for such materials is increasing year by year. The main chemical components of nickel-chromium alloy are nickel and chromium, which can be widely used in metallurgy, household appliances, machinery manufacturing, etc. as heating elements and electrical appliances as resistance materials, but because of nickel, the price is relatively high. Short life is not conducive to the use and promotion of nickel-chromium alloy wire. However, the existing nickel-chromium alloys generally have the problem of poor toughness. Contents of the invention [0003] Aiming at the deficiencies of the above-mentioned prior art, the te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/05C22C1/02
CPCC22C1/023C22C19/053C22C19/055
Inventor 庄锡龙
Owner 丹阳盛龙电热化工有限公司