Proportioning method for multi-element alloy high temperature resistance wire

Abstract

The invention provides a proportioning method for a multi-element alloy high temperature resistance wire, which comprises the following chemical components by percentage: 28-28.5% of Cr, 6.5-7% of Al, 1.8-2.2% of Mo, 1.5-2% of W, 0.5-0.8% of Co, less than or equal to 0.038% of C, less than or equal to 0.39% of Mn, less than or equal to 0.36% of Si, less than or equal to 0.019% of P, less than or equal to 0.002% of S, 0.13% of RE, 0.12% of Ni, 0.162% of V, 0.17% of Nb, 0.04% of Cu and the balance of Fe. The proportioning method can increase the material resistivity, the application amount of an electrothermal material can be saved, compared with common electrothermal materials, the elongation percentage is lower, the elongation rate of each meter is less than 10mm, the non-deformable characteristic can increase the reliability of various electrical heating elements, furthermore, the service life can be prolonged.

Description

technical field [0001] The invention relates to the field of heat treatment in the mechanical metallurgy industry, in particular to a method for mixing multi-alloy high-temperature resistance wires. Background technique [0002] With the needs of the development of my country's industrial situation, the requirements for heat treatment in the mechanical metallurgical industry are constantly increasing. Due to the limitation of material characteristics, several domestically produced electric heating materials cannot meet the required heat treatment temperature requirements and have a short service life, and the resistivity is only 1.42. Ωm, while the elongation rate of ordinary electric heating materials is relatively high, the reliability of electric heating elements is low, easy to deform, and the space for redesign is narrow, and the imported materials have good performance but are extremely expensive, which is unbearable for most enterprises and increases costs. , so it is n...

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Problems solved by technology

[0002] With the needs of the development of my country's industrial situation, the requirements for heat treatment in the mechanical metallurgical industry are constantly increasing. Due to the limitation of material characteristics, several domestically produced electric heating materials cannot meet the required heat treatment temperature requirements and have a short service life, and the resistivity is only 1.42. Ωm, while the elongation rate of ordinary electric heating materials is relatively high, the reliability of electric heating elements is low, easy to deform, and the space for redesign is narrow, and the imported materials have good performance but are extremely expensive, which is unbearable for most enterprises and increases costs. , so it is necessary to develop a new type of thermal material that meets the composite requirements and has a long service life