Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing boron-modified commercially pure aluminum with high strength and conductivity

A technology of industrial pure aluminum and boron modification, applied in the preparation of highly conductive boron modified industrial pure aluminum, high strength field, can solve the problems of complex forming process, alloy element pollution, low mechanical properties, etc.

Active Publication Date: 2013-03-20
CHANGZHOU UNIV
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the patented method adopts multi-component microalloying in the smelting process, the subsequent forming process is complicated, and the production cost is high, so it is not suitable for industrial production.
[0005] In order to solve the problem of alloy element pollution caused by multi-element micro-alloying and low mechanical properties in the boronization process of industrial pure aluminum, the purpose of the present invention is to provide a method for preparing industrial pure aluminum modified by boron with high strength and high conductivity

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing boron-modified commercially pure aluminum with high strength and conductivity
  • Method for preparing boron-modified commercially pure aluminum with high strength and conductivity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Process such as figure 1 , put industrial pure aluminum and refining agent into the ceramic crucible, put it into the pit furnace and heat it to 760°C to melt it, and then press the prepared aluminum-boron master alloy into the molten aluminum to make the boron element The content accounts for 0.1% of the total weight of the melt. After stirring, the temperature is raised to 760 ° C, and the temperature is kept for 60 minutes.

[0021] The aluminum ingot is processed into a sample of 12mm×12mm×90mm, the surface of the sample is coated with lubricant, and the deformation of 1, 2, 4 and 8 passes is carried out. The inner angle of the mold is Φ110°, and the deformation of each pass is uniform Without rotating the sample, the deformation speed is 12mm / min.

[0022] Roughly grind, finely grind, and polish the equal-channel deformed sample, and use an eddy current conductivity meter to test the conductivity. The relative conductivity (room temperature) of the aluminum sampl...

Embodiment 2

[0024] Put industrial pure aluminum and refining agent into the ceramic crucible, put it into the pit furnace and heat it to 760°C to melt it, then press the prepared aluminum-boron master alloy into the molten aluminum to make the content of boron element Accounting for 0.02% of the total weight of the melt, stir, raise the temperature to 740°C, and after standing for 5 minutes, pour the molten aluminum into the iron mold, demould, and water-cool to room temperature.

[0025] The aluminum ingot is processed into a sample of 12mm×12mm×90mm, the surface of the sample is coated with a lubricant, and 4 passes of equal-channel deformation are carried out. The inner angle of the mold is 90°, and the sample is not rotated in each pass of deformation. Speed ​​12mm / min.

[0026] Roughly grind, finely grind, and polish the equal-channel deformed sample, and use an eddy current conductivity meter to test the conductivity. The relative conductivity (room temperature) of the aluminum sam...

Embodiment 3

[0028] Put industrial pure aluminum and refining agent into the ceramic crucible, put it into the pit furnace and heat it to 760°C to melt it, then press the prepared aluminum-boron master alloy into the molten aluminum to make the content of boron element Accounting for 0.2% of the total weight of the melt, stir, raise the temperature to 760°C, and keep it for 60 minutes, then pour the molten aluminum into the iron mold, demould, and water-cool to room temperature.

[0029] The aluminum ingot is processed into a sample of 12mm×12mm×90mm, the surface of the sample is coated with a lubricant, and 4 passes of equal channel deformation are carried out. The inner angle of the mold is 120°, and the sample is not rotated in each pass of deformation. Speed ​​12mm / min.

[0030] Roughly grind, finely grind, and polish the equal-channel deformed sample, and use an eddy current conductivity meter to test the conductivity. The relative conductivity (room temperature) of the aluminum samp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Tensile strengthaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a method for preparing boron-modified commercially pure aluminum with high strength and conductivity, comprising the steps of: (1) adding commercially pure aluminum and a refining agent into a ceramic crucible, and heating to 760 DEG C to melt; (2) adding an AlB intermediate alloy into molten aluminum, wherein the boron content of an aluminum melt is 0.02-0.2%; (3) stirring the molten aluminum, then warming to a pouring temperature, standing, and preserving heat for 5-60 minutes; (4) pouring the molten aluminum into an iron mold at 740-760 DEG C, demolding, and cooling to room temperature; and (5) cutting a cast aluminum ingot into a sample of 12mm*12mm*90mm for equal channel deformation. By using the refining process, the commercially pure aluminum with high strength and conductivity can be obtained, the process flow is short, thus the multi-microalloying process is avoided, the production cost is reduced, and industrial application is facilitated.

Description

technical field [0001] The invention relates to a preparation method of boron-modified industrial pure aluminum with high strength and high conductivity. Background technique [0002] Due to its high electrical conductivity, high specific strength, good ductility, easy processing and high content in the earth, aluminum alloy is one of the important raw materials for wire and cable at present. At present, my country's conductive aluminum accounts for about a quarter of the total aluminum consumption. The extensive use of aluminum conductors puts forward higher requirements for electrical aluminum, and its main performance indicators include: tensile strength, electrical conductivity and ductility. At present, the conductivity of the conductive pure aluminum conductors used in the power grids of various countries is basically above 61% IACS. [0003] Factors affecting the conductivity of aluminum include chemical composition, deformation, and dispersed second-phase particles...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C22C21/00C22C1/03
Inventor 魏伟茆仁宇魏坤霞杜庆柏胡静
Owner CHANGZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com