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Low-sag long-span transmission conductor based on TiB2p/Al composite material and preparation method of low-sag long-span transmission conductor

A technology of composite materials and transmission wires, which is applied in the direction of metal/alloy conductors, cable/conductor manufacturing, conductive materials, etc., can solve the problems of easy fracture and low rigidity of all aluminum alloy wires, and achieve low cost, easy promotion, and low cost. Sag effect

Active Publication Date: 2022-02-01
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a TiB-based 2p The preparation method of the low-sag and large-span transmission wire of / Al composite material has simple process and low cost, and the prepared material has excellent mechanical properties and electrical conductivity

Method used

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  • Low-sag long-span transmission conductor based on TiB2p/Al composite material and preparation method of low-sag long-span transmission conductor
  • Low-sag long-span transmission conductor based on TiB2p/Al composite material and preparation method of low-sag long-span transmission conductor
  • Low-sag long-span transmission conductor based on TiB2p/Al composite material and preparation method of low-sag long-span transmission conductor

Examples

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Embodiment 1

[0033] This example discloses a 4wt.%TiB 2p The preparation method of / AA1070 composite material, comprises the following steps:

[0034] Raw material preparation: 1) Al-5wt.%TiB produced in industrial tons 2 The free Ti base metal, Ti content and B content are 3.54wt.% and 1.34wt.%; 2) Al-3wt.% B master alloy of high metallurgical quality (low alkali metal content) (the main second phase composition for AlB 2 ); 3) All raw materials need to be dried in a drying oven at 200°C for 30 minutes before smelting; 4) For the preparation of 4wt.%TiB 2p The composition of the / AA1070 composite material is 2.67wt.% Ti, 1.33wt.% B, the impurity content of Si and Fe is less than 0.2wt.%, and each other impurity content is less than 0.1wt.%.

[0035]Melting: 1) Put the free Ti base metal and Al-3B master alloy into the graphite clay crucible at the same time, heat it to 780°C in a well-type melting resistance furnace, keep it for 20min, and add the mass of Al-3wt.%B master alloy The fr...

Embodiment 2

[0038] This example discloses a 4wt.%TiB 2p The preparation method of / AA6201 composite material, comprises the following steps:

[0039] Step (1) raw material preparation: 1) Al-5wt.%TiB of industrial ton-level production 2 The free Ti base metal, Ti content and B content are 3.54wt.% and 1.34wt.%; 2) Al-3wt.% B master alloy of high metallurgical quality (low alkali metal content) (the main second phase composition for AlB 2 ), its added mass fraction is 5.84%; 3) Al-10wt.% Mg master alloy, its added mass fraction is 8.88%; 4) Al-12wt.% Si master alloy, its added mass fraction is 5.03% ;5) All raw materials need to be dried in a drying oven at 200°C for 30 minutes before smelting; 6) Used to prepare 4wt.%TiB 2p The composition of / AA6201 composite material is 2.67wt.% Ti, 1.33wt.% B, 0.86wt.% Mg, 0.6wt.% Si, Fe impurity content is less than 0.2wt.%, other each impurity content is less than 0.1wt .%.

[0040] Step (2) Melting: 1) Put the free Ti base metal and Al-3B inter...

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Abstract

The invention provides a low-sag large-span transmission conductor based on a TiB2p / Al composite material and a preparation method thereof.The preparation method of the low-sag large-span transmission conductor comprises the following steps: smelting, specifically, free Ti base metal and Al-3wt.% B intermediate alloy are put into a crucible to be heated and subjected to heat preservation, and then alloying is conducted, b, high-purity argon is introduced into the melt for degassing, and c, the melt is poured into a steel mold; carrying out homogenization treatment: carrying out heat preservation treatment by adopting a muffle furnace, and cooling along with the furnace; extruding, namely heating by adopting electromagnetic induction before extruding, and then conveying a sample to an extruding cylinder; carrying out rapid quenching after solid solution treatment; and drawing: after aging treatment, preparing to obtain the low-sag long-span transmission conductor based on the TiB2p / Al composite material. The low-sag long-span transmission conductor is simple in preparation process and low in cost, and the prepared material has excellent mechanical property and conductivity.

Description

technical field [0001] The present invention relates to new material technology, in particular to a TiB-based 2p Low-sag and long-span power transmission wire of / Al composite material and its preparation method. Background technique [0002] At present, high-performance aluminum alloy wires are urgently needed power transmission materials in the power industry. In the composition design of conductive aluminum alloys, conductivity and strength are usually a set of contradictory properties, and it is difficult to improve both at the same time. Therefore, how to achieve a substantial improvement in a performance through material composition design and microstructure design, And another kind of performance is weakly reduced to become the key to the preparation of high-performance conductive aluminum. TiB 2 Ceramic particles reinforced aluminum matrix composites not only take into account excellent electrical conductivity, but also improve the strength of the material through...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/10C22C21/00C22C1/02C22F1/00C22F1/04H01B1/02H01B13/00B21C37/04C21D9/52
CPCC22C1/1036C22C21/00C22C21/003C22F1/002C22F1/04C21D9/525B21C37/04H01B1/023H01B13/00
Inventor 陈宗宁郭恩宇康慧君王同敏赵凯卢一平接金川张宇博曹志强李廷举
Owner DALIAN UNIV OF TECH