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Production technology for bimetal coating copper strip

A production process and bimetal technology, which is applied to the production process field of copper strips for bimetallic cladding, can solve the problems of low product yield, large equipment investment and high production cost, and achieve high purity, low oxygen content and short process flow. Effect

Active Publication Date: 2013-04-03
NANTONG JIUWUBA TECH ENTERPRISE INCUBATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This production process mainly has the following disadvantages: 1. The production cycle is long and the labor efficiency is low; 2. The hot rolling process is adopted, and the energy consumption is large; 3. The production cost is high, the equipment investment is large, and the product yield is low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) Oxygen-free copper rod for up-leading: the high-purity cathodic electrolytic copper with no defects such as "copper beans" and acid marks on the surface is used as the raw material, and it is preheated and dried and then melted in the smelting device (the smelting device includes smelting Furnace and holding furnace, there is a compartment between the melting furnace and the holding furnace. The compartment is composed of the first compartment, the second compartment, and the third compartment arranged in sequence. It is connected by flow groove, the flow groove is 200mm higher than the bottom of the furnace, which can promote the uniformity of copper liquid flow and also have the effect of slag removal), the temperature of the melting furnace is 1155 ° C, the copper liquid in the melting furnace is covered with charcoal, The particle size is 40mm, and the covering thickness is 125mm, which ensures the reducing atmosphere of the melting furnace; the molten copper melt...

Embodiment 2

[0025] 1) Smelting and casting: the high-purity cathodic electrolytic copper with no defects such as "copper beans" and acid traces on the surface is used as the raw material, which is preheated and dried and then melted in the smelting device (the smelting device includes a smelting furnace and a holding furnace , There is a compartment between the melting furnace and the holding furnace. The compartment is composed of the first compartment, the second compartment and the third compartment arranged in sequence. The melting furnace, the compartment and the holding furnace are connected by a flow ditch , the flow groove is 100mm higher than the bottom of the furnace, which can promote the uniformity of copper liquid flow, and can also play the role of slag removal), the temperature of the melting furnace is 1150 ° C, the copper liquid in the melting furnace is covered with charcoal, and the particle size of the charcoal is 30mm , the covering thickness is 100mm to ensure the red...

Embodiment 3

[0032] 1) Oxygen-free copper rod for up-leading: the high-purity cathodic electrolytic copper with no defects such as "copper beans" and acid marks on the surface is used as the raw material, and it is preheated and dried and then melted in the smelting device (the smelting device includes smelting Furnace and holding furnace, there is a compartment between the melting furnace and the holding furnace. The compartment is composed of the first compartment, the second compartment, and the third compartment arranged in sequence. It is connected by flow groove, the flow groove is 400mm higher than the bottom of the furnace, which can promote the uniformity of copper liquid flow, and can also play a role in removing slag), the temperature of the melting furnace is 1160 ° C, the copper liquid in the melting furnace is covered with charcoal, The particle size is 50mm, and the covering thickness is 150mm to ensure the reducing atmosphere of the melting furnace; the molten copper melted ...

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PUM

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Abstract

The invention discloses a production technology for a bimetal coating copper strip, which comprises the following steps: 1, smelting casting: preheating and drying electrolytic copper and placing in a smelting device for melting, adopting wood coal and graphite flakes to cover the surface of copper liquid, and after performing degasification and deoxidation on line by a degasification device, using a traction machine set to guide a copper rod upwards in a vacuum clutch type way to enable the copper rod to enter a wire taking-up device; 2, continuous extruding: enabling the oxygen-free copper rod obtained in step 1 to pass through a continuous extrusion machine set to produce a copper strip plate, and quickly using a cooling medium to cool to 20-30 DEG C to obtain the fine grain structured copper strip plate with the grain size of 0.005 mm to 0.010 mm; 3, rolling; 4, intermediate annealing; 5, fine rolling; 6, annealing; 7, cleaning and inactivating; 8, cutting; and 9, packaging and storing into a warehouse. According to the invention, the production technology has the advantages of excellent welding performance, high plastic processing performance, high electric conductivity, high surface quality and the like, and the technological process is short, and the technology is efficient and energy-saving.

Description

technical field [0001] The invention relates to a production process of a copper strip for bimetal cladding, and belongs to the technical field of nonferrous metal processing. Background technique [0002] Copper tape for double metal cladding is the main raw material for making copper-clad aluminum cables. Copper-clad aluminum cables are coated with a layer of equal-thick copper tape concentrically on the aluminum rod, and are processed through multiple processes such as cladding, welding, and stretching. , so that the copper-aluminum boundary forms a strong metal combination into a whole, forming a double-metal clad wire. Copper-clad aluminum-clad cables made of double-metal clad copper strips are substitutes for new pure copper core cables that are vigorously promoted by the state, and are widely used in cables with high frequency transmission signals for TV and network. Since high-frequency signal transmission has the characteristics of skin effect, that is, the transmi...

Claims

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Application Information

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IPC IPC(8): B21C37/00
Inventor 徐高磊
Owner NANTONG JIUWUBA TECH ENTERPRISE INCUBATOR CO LTD
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