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A kind of high-strength corrosion-resistant electrical aluminum-titanium alloy material and preparation method thereof

A technology of aluminum-titanium alloys and alloy materials, which is applied in the field of high-strength corrosion-resistant electrical aluminum-titanium alloy materials and its preparation, can solve the problems of expensive and common use of copper, failure to meet design requirements, power system security threats, etc., to reduce Stress corrosion cracking susceptibility, improved corrosion resistance and weldability, reduced harmful effects

Inactive Publication Date: 2018-01-09
安徽华淮新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a grounding body, copper has good electrical conductivity and corrosion resistance, but copper cannot be widely used due to its high price, and it is easy to cause damage by theft, which poses a huge threat to the safety of the power system
Galvanized steel is cheap as a grounding body, but its corrosion resistance is poor, and it often cannot meet the design requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Take Ti: 0.2wt% by weight percentage; Zr: 0.15wt%; B: 0.4wt%; Mn: 0.01wt%; Cr: 0.35wt%; Sr: 0.1wt%; After batching, each component is smelted in a melting furnace according to the ratio to obtain an alloy, and then cast into an aluminum ingot by deep well casting. The ingot casting temperature is 725°C, the homogenization temperature is 495°C, and the homogenization time is 8 hours. The aluminum ingot is extruded by the hot extrusion process at an extrusion temperature of 460°C, and extruded into a flat material of 60mm×6mm.

Embodiment 2

[0016] Take Ti: 0.05wt%; Zr: 0.01wt%; B: 0.1wt%; Mn: 0.3wt%; Cr: 0.01wt%; Sr: 0.015wt%; Ce: 0.02wt%; ; After batching, each component is smelted in a melting furnace according to the ratio to obtain an alloy, and then cast into an aluminum ingot by deep well casting. The ingot casting temperature is 700 ° C, the homogenization temperature is 495 ° C, and the homogenization time is 48 hours. The aluminum ingot is extruded by the hot extrusion process at an extrusion temperature of 400°C, and extruded into a flat material of 60mm×6mm.

Embodiment 3

[0018] Take Ti: 0.2wt%; Zr: 0.15wt%; B: 0.4wt%; Mn: 0.01wt%; Cr: 0.35wt%; Sr: 0.1wt%; ; the balance is Al; after batching, each component is smelted in a melting furnace according to the ratio to obtain an alloy, and then cast into an aluminum ingot by deep well casting. The ingot casting temperature is 725°C, and the homogenization temperature is 495°C. The time is 4 hours, and the aluminum ingot is extruded by a hot extrusion process at an extrusion temperature of 400° C., and extruded into a flat material of 60 mm×6 mm.

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Abstract

The invention belongs to the field of alloy materials, and discloses a high-strength and corrosion-resistance aluminum-titanium alloy material for an electrician and a preparation method thereof. The aluminum-titanium alloy material consists of the following components in percentage by weight: 0.05-0.2 wt% of Ti, 0.01-0.15 wt% of Zr, 0.1-0.4 wt% of B, 0.01-0.3 wt% of Mn, 0.01-0.35 wt% of Cr, 0.015-0.1 wt% of Sr, 0.02-1 wt% of rare earth, and the balance of Al. The preparation method comprises the following steps: all the components are prepared to an alloy in a smelting furnace after the batching; the alloy is cast to an aluminum ingot in a deep well casting mode; and the aluminum ingot is extruded by a hot extrusion process to manufacture a product shape accordant with the requirements. The aluminum-titanium alloy material is excellent in stress corrosion resistance, high in strength and excellent in electrical conductivity.

Description

technical field [0001] The invention belongs to the field of alloy materials, and relates to an alloy material and a preparation method thereof, in particular to a high-strength corrosion-resistant aluminum-titanium alloy material for electrical use and a preparation method thereof. Background technique [0002] Copper is used as a part of electrical equipment in many fields of electrical materials. However, copper is expensive to use as a conductive material, and its low strength and poor anti-friction performance sometimes cannot meet the requirements of some special equipment. [0003] Grounding is to connect some parts of electrical equipment and a certain point of the power system to the earth, provide a leakage channel for fault current and lightning current, stabilize the potential, and provide a zero potential reference point to ensure the safe operation of the power system and electrical equipment. At the same time, ensure the personal safety of power system operato...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C1/02
Inventor 孙道明尉迎春
Owner 安徽华淮新材料有限公司
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