A kind of al-yb-b conductive aluminum alloy and its preparation method and application
An al-yb-b, aluminum alloy technology, applied in the direction of conductive materials, conductive materials, metal/alloy conductors, etc., can solve problems that do not involve high-temperature electrical conductivity, etc., to ensure safety and stability, improve heat resistance, and reduce The effect of DC power consumption
Active Publication Date: 2020-07-17
CENT SOUTH UNIV
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The room temperature conductivity and strength of the aluminum wire are high, but the patent does not involve high temperature conductivity
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[0047] The technical solutions of the present invention are further described below through specific embodiments, which are only for helping to understand the present invention, and should not be regarded as specific limitations to the present invention.
[0048] The components of Examples 1-9 and Comparative Examples 1-13 are set as shown in Table 1. Using industrial pure aluminum ingots with a purity of 99.7% (in which Si is 0.05wt%, Fe is 0.13wt%, Cu is 0.01wt%, Mg is 0.01wt%), and industrial pure aluminum is melted at 760-780°C; adding Al- B master alloy, then add other alloy elements according to the design scheme of corresponding alloy elements described in table 1, as the kind of alloy elements designed in embodiment 6 are Yb, B, Sc, then add Al after adding Al-B master alloy -Yb master alloy and Al-Sc master alloy; carry out refining, rapid component analysis before furnace; component adjustment, make the content of each element be the mass percentage described in Tabl...
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Abstract
The invention relates to an aluminum alloy with excellent high-temperature conducting performance and a preparing method and application, and belongs to the technical field of electrical new materials. The aluminum alloy comprises 0.02 to 0.15 wt% of B and 0.05 to 0.20 wt% of Yb, in addition, the proper amount of Sc, Zr, Si and other elements can be added; the preparing method of the alloy comprises the steps that an industrial pure aluminum ingot with the purity of 99.7% or above is taken to be subject to remelting, or electrolytic aluminum liquid is adopted, alloy elements are added, refining is carried out, before-furnace rapid component analysis and heat preservation standing are carried out, rapid cooling casting is carried out, an aluminum alloy ingot blank is obtained, and heat treatment is carried out finally; the prepared aluminum alloy has the low resistance temperature coefficient and higher high-temperature electric conductivity and survival rate, the prominent het resistance performance is achieved, and the aluminum alloy can be used for bus-bars, wires, cables or anode rods for aluminum electrolysis.
Description
technical field [0001] The invention relates to an Al-Yb-B conductive aluminum alloy, in particular to an aluminum alloy with excellent high-temperature electrical conductivity and its preparation method and application, belonging to the technical field of new electrical materials. Background technique [0002] When the metal is subjected to an external electric field, the carriers move directional in the lattice field formed by periodically arranged ions or lattice atoms, and those abnormal ions or lattice atoms that destroy the periodicity of the lattice field collide Or hinder the directional movement of the carriers to generate resistance and Joule heat. Alloying elements, impurities, crystal defects, etc. will cause periodic damage to the lattice field, shorten the mean free path of conductive electrons, increase the resistivity of the alloy, and reduce the corresponding electrical conductivity. The influence of impurities on electrical conductivity is closely related ...
Claims
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IPC IPC(8): C22C21/00C22C1/03C22F1/04H01B1/02
CPCC22C1/026C22C1/03C22C21/00C22F1/04H01B1/023
Inventor 李红英
Owner CENT SOUTH UNIV