Unlock instant, AI-driven research and patent intelligence for your innovation.

Aluminum rod and preparation method thereof

An aluminum rod and aluminum ingot technology, applied in the field of preparing the aluminum rod, can solve the problems of increased cost and uneven tensile strength of the aluminum rod, achieve cost saving, solve the problem that the tensile strength and electrical conductivity cannot be satisfied at the same time, high The effect of conductivity

Active Publication Date: 2012-10-17
绍兴电力设备有限公司
View PDF2 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the aluminum ingot is melted, we analyze the content of iron and silicon in front of the furnace, calculate the amount of aluminum-iron intermediate alloy that should be added and add it to the furnace, but it needs to be stirred evenly, otherwise the tensile strength of the aluminum rod will be produced unevenness; but also to add iron and aluminum alloys, increasing the cost

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Our company has A batch of aluminum ingots. After analysis, the aluminum content is 99.76%, the iron content is 0.13%, and the silicon content is 0.07%. According to the general requirements, this aluminum ingot is relatively good. However, if all the aluminum rods produced by such aluminum ingots are drawn into aluminum wires with a diameter of 3.99mm, although the electrical conductivity meets the requirements, the tensile strength is only between 165 and 178MPa, which does not meet the user's minimum tensile strength ≥ 176MPa And the requirement of average tensile strength ≥ 181MPa.

[0040] B batch of aluminum ingots, after analysis, the aluminum content is 99.67%, the iron content is 0.18%, and the silicon content is 0.11%. All the aluminum rods produced with this aluminum ingot are drawn into aluminum wires with a diameter of 3.99mm. , although the tensile strength can reach 187 ~ 215MPa, but the electrical conductivity barely meets the requirements, the resistivi...

Embodiment 2

[0048] Our company has C batch of aluminum ingots. After analysis, the aluminum content is 99.79%, the iron content is 0.12%, and the silicon content is 0.06%. It is drawn into an aluminum wire with a diameter of 3.99mm. Although the electrical conductivity meets the requirements, the The tensile strength is only between 159 and 169MPa, which obviously does not meet the requirements of the user's minimum tensile strength ≥ 176MPa and average tensile strength ≥ 181MPa.

[0049] B batch of aluminum ingots, the aluminum content is 99.67%, the iron content is 0.18%, and the silicon content is 0.11%. The tensile strength can reach 187-215MPa, but the electrical conductivity barely meets the requirements, the resistivity is about 28.032nΩ·m, and the user requirement is ≤28.034nΩ·m.

[0050] We mix the two batches of aluminum ingots according to the following ratio: 0.6 part of the weight of the C batch of aluminum ingots is mixed with 1 part of the weight of the B batch of aluminum ...

Embodiment 3

[0057] Our company has D batch of aluminum ingots. After analysis, its aluminum content is 99.65%, iron content is 0.19%, silicon content is 0.12%, and it is drawn into an aluminum wire with a diameter of 3.99mm. Although the tensile strength can reach 180 ~211MPa, but the conductivity does not meet the requirements, the resistivity is about 28.040nΩ·m, and the user requirements are ≤28.034nΩ·m.

[0058] C batch of aluminum ingots, after analysis, the aluminum content is 99.79%, the iron content is 0.1%, the silicon content is 0.07%, and it is drawn into an aluminum wire with a diameter of 3.99mm. Although the electrical conductivity meets the requirements, the tensile strength Only between 160 and 173MPa, it obviously does not meet the requirements of the user's minimum tensile strength ≥ 176MPa and average tensile strength ≥ 181MPa.

[0059] We mix the two batches of aluminum ingots according to the following ratio: 0.8 part of the weight of the D batch of aluminum ingots is...

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 discloses an aluminum rod which comprises the components by weight percent: 99.70-99.74% of Al, 0.08-0.1% of Si, 0.14-0.17% of Fe and 0-0.5% of impurities, wherein the ratio of Fe to Si is 1.4-1.8. The invention also discloses a method for preparing the aluminum rod. The method comprises the steps of: firstly, sampling all batches of aluminum ingots, and analyzing the contents of Al, Si and Fe in all the batches of aluminium ingots; and then, smelting and rolling by ensuring the contents of Al, Si and Fe and the ratio of Fe to Si to be within the specified range in a weight ratio. Compared with the traditional technology, the preparation method is simpler and does not need to add intermediate Fe-Al alloy, thus not only reducing the production cost, but also guaranteeing Fe and Si to be even in the molten aluminum; and the uneven tensile strength of the aluminum rod prepared by the traditional technology can be avoided. According to the invention, the effects of high tensile strength and high conductivity of the aluminum rod are realized, thus overcoming the defect that the existing aluminum rod can not meet the tensile strength and the conductivity at the same time.

Description

technical field [0001] The invention relates to the technical field of aluminum wire production, in particular to an aluminum rod capable of pulling out an aluminum wire with high tensile strength and high conductivity and a method for preparing the aluminum rod. Background technique [0002] As the large cross-section overhead wires used in transmission lines become more and more common, the technical requirements for the wires and the aluminum wires that make up the wires are also getting higher and higher, the conductivity is increased by 8‰, and the tensile strength is increased by 10%. Generally speaking, the conductivity of the aluminum wire is negatively correlated with the tensile strength, so it is technically difficult to increase both the conductivity of the aluminum wire and the tensile strength of the aluminum wire. [0003] The conductivity and tensile strength of the aluminum wire are related to the impurity content in aluminum. The main impurities in aluminum...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/00C22C1/06
Inventor 翁国忠陈涛高锦锦
Owner 绍兴电力设备有限公司