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

A production process of copper rods for battery positive and negative terminals

A lead-out terminal and production process technology, which is applied in the field of copper rod production process for battery positive and negative lead-out terminals, can solve the problems of non-dense casting structure, low product yield, and easy cracks, etc., to reduce loose ingots, Effect of increasing ingot density and reducing cracks

Active Publication Date: 2021-06-22
JIANGXI GUANGXIN COPPER IND +2
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a production process for copper rods for battery positive and negative terminals, which can effectively solve the problem of copper rods existing in the battery positive and negative terminals. The casting structure is not dense, the product toughness is poor, the subsequent stamping process is prone to cracks, and the product yield is low.

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
  • A production process of copper rods for battery positive and negative terminals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A copper bar material for battery positive and negative lead-out terminals. The copper raw materials are No. 1 cathode copper and No. 1 metal tin as raw materials. The specific preparation method includes the following steps:

[0046] (1) Melt and homogenize the cathode copper and tin in the melting chamber of the submerged power frequency induction furnace to ensure that the composition range of tin is 50-80ppm, and pass carbon monoxide and The mixed gas of nitrogen is deoxidized and degassed to ensure that the oxygen content is within 10ppm, and the temperature of the heat preservation chamber of the submerged flow type power frequency induction furnace is controlled at 1140-1180°C.

[0047] (2) The molten copper prepared in step (1) was subjected to horizontal continuous casting to produce an oxygen-free copper ingot with a diameter of 180 mm.

[0048](3) Cut the copper ingot blank prepared in step (2) into 500mm long ingots, put them into an oil and gas heating furn...

Embodiment 2

[0057] A copper bar material for battery positive and negative lead-out terminals, the copper raw materials are standard cathode copper and No. 1 metal tin as raw materials, and the specific preparation method includes the following steps:

[0058] (1) Melt and homogenize the cathode copper and tin in the melting chamber of the submerged power frequency induction furnace to ensure that the composition range of tin is 50-80ppm, and pass carbon monoxide and The mixed gas of nitrogen is deoxidized and degassed to ensure that the oxygen content is within 10ppm, and the temperature of the heat preservation chamber of the submerged flow type power frequency induction furnace is controlled at 1140-1180°C.

[0059] (2) The molten copper prepared in step (1) was subjected to horizontal continuous casting to produce an oxygen-free copper ingot with a diameter of 180 mm.

[0060] (3) Cut the copper ingot blank prepared in step (2) into 500mm long ingots, put them into an oil and gas heat...

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
densityaaaaaaaaaa
crystal sizeaaaaaaaaaa
crystal sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a production process of copper rods for positive and negative battery lead-out terminals, which includes the following steps: (1) copper smelting: copper metal smelting is carried out in an underflow type power frequency induction furnace to form a qualified melt; (2) ) Horizontal continuous ingot casting: use a horizontal continuous casting machine to cast copper ingots of the required size; (3) Horizontal extrusion: use a horizontal extrusion machine to hot-extrude copper ingots; (4) Coil; (5) ) Cold rolling of copper rods: use continuous cold rolling mills to cold-roll copper rods; (6) intermediate drawing: use drawing machines to draw cold-rolled copper rods to achieve the required size; (7) softening Annealing: softening and annealing the drawn copper rod; (8) high-precision drawing. The copper rod produced through the above steps has fine grains, dense structure, good plasticity, and is not easy to be broken after subsequent drawing. The high-temperature welding of copper does not produce air bubbles, the stamping performance is outstanding, and almost no waste products are produced. Terminal performance is excellent.

Description

technical field [0001] The invention relates to the technology in the field of copper material production, in particular to a production process of copper rods for battery positive and negative lead-out terminals. Background technique [0002] With the rapid development of the new energy field, more and more occasions, several batteries are combined to form a battery pack to form a larger output power to meet the needs of power vehicles and the like. The positive and negative lead-out terminals of the battery pack are required to have good electrical conductivity and formability, and are generally made of high-conductivity red copper rods (specification range: Φ4.0-Φ16mm) by direct punching. However, due to the complex shape of the terminal, in addition to requiring sufficient electrical conductivity and hardness, higher requirements are placed on the stamping performance of the terminal material, and ordinary copper materials cannot meet the needs of comprehensive performan...

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 Patents(China)
IPC IPC(8): B21C37/04B22D11/045C22B15/00C22F1/08
CPCB21C37/045B22D11/045C22B15/0039C22F1/08
Inventor 黄四龙李明茂旷军平
Owner JIANGXI GUANGXIN COPPER IND