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Method for efficiently forming copper-nickel-silicon alloy strip through continuous casting and rolling

A continuous casting and rolling, copper-nickel-silicon technology, applied in metal rolling and other directions, can solve the problems of high energy consumption, long process flow and high cost, and achieve the effect of simplifying the process, reducing costs, and excellent plasticity

Inactive Publication Date: 2017-11-07
GUANGDONG INST OF MATERIALS & PROCESSING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the purpose of the present invention is to provide a method for continuously casting and rolling high-efficiency forming copper-nickel-silicon alloy strips, which solves the problems of long process flow, large energy consumption and high cost of traditional copper-nickel-silicon alloy strip production methods, and develops A preparation method for continuous casting and rolling high-efficiency forming copper-nickel-silicon alloy strip

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Preparation method of copper-nickel-silicon alloy strip with a thickness of 50 μm.

[0042]Cathode copper, copper-nickel and copper-silicon intermediate alloys are used as raw materials, wherein the content of nickel is 1.2wt.%, the content of silicon is 0.3wt.%, and the rest is copper. First, the raw material is melted at 1350°C by heating the mold, and cooled by spraying water near the outlet of the mold. The temperature of the water is 30°C and the flow rate is 200ml / min. A copper-nickel-silicon alloy slab with a width of 10 mm and a thickness of 1 mm; then the alloy slab is rolled at room temperature for 15 passes at a pass reduction rate of 5 to 50 percent; and the rolled copper-nickel-silicon alloy The slab is subjected to aging treatment in an argon atmosphere, the aging treatment temperature is 500°C, the time is 1h, and the cooling method is cooling with the furnace; the final cooling is carried out for 5 passes of cold finish rolling with a pass reduction rate...

Embodiment 2

[0045] Preparation method of copper-nickel-silicon alloy strip with a thickness of 150 μm.

[0046] Cathode copper, copper-nickel and copper-silicon intermediate alloys are used as raw materials, wherein the content of nickel is 1.2wt.%, the content of silicon is 0.3wt.%, and the rest is copper. First, the raw material is melted at 1400°C by heating the mold, and cooled by spraying water near the outlet of the mold. The temperature of the water is 20°C, and the flow rate is 50ml / min. A copper-nickel-silicon alloy slab with a width of 650mm and a thickness of 30mm; then the alloy slab is rolled at room temperature for 10 passes at a pass reduction rate of 5 to 50%; and the rolled copper-nickel-silicon alloy The slab is subjected to aging treatment in an argon atmosphere. The aging treatment temperature is 500°C and the time is 1 hour. The cooling method is cooling with the furnace; the final cooling is 3 passes of cold finish rolling with a pass reduction rate of about 5 to 40%...

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Abstract

The invention provides a method for continuously casting and rolling high-efficiency forming copper-nickel-silicon alloy strips, comprising the following steps: taking copper source, nickel source and silicon source as raw materials, successively melting, continuous casting, cooling and casting to obtain copper The nickel-silicon alloy slab and the copper-nickel-silicon alloy slab are sequentially rolled, aged, cooled and finished cold rolled to obtain a copper-nickel-silicon alloy strip. The examples show that the copper-nickel-silicon alloy slab with high surface quality and dense columnar grain structure obtained by the present invention has an elongation rate greater than 45% at room temperature and has excellent plasticity; Continuous casting and rapid solidification can effectively improve the solid solution strengthening and precipitation strengthening effects of alloy elements; the invention has a simple process, can effectively reduce energy consumption, reduce costs, and improve production efficiency and product yield.

Description

technical field [0001] The invention relates to the technical field of preparation of non-ferrous metal strips, in particular to a preparation method of copper-nickel-silicon alloy strips. Background technique [0002] Copper-nickel-silicon alloy has excellent properties such as high strength, high electrical conductivity, good weldability, high temperature softening resistance and no magnetism, and is widely used in the fields of electronic information industry, aviation and electromechanical manufacturing. The production of traditional copper-nickel-silicon alloy strips has to go through multiple processes such as melting and casting, hot rolling, face milling, initial rolling, intermediate annealing, and finishing rolling (see "Research on the Production Process of C7025 Copper Alloy Strips", Yi Zhihui, Shanghai Nonferrous Metals, 2012,33(4):158~161), the production method of copper-nickel-silicon alloy strip has the advantages of relatively mature production technology a...

Claims

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Application Information

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IPC IPC(8): C22C9/06C22C1/02C22F1/08C22F1/02B21B1/46
CPCC22C9/06B21B1/463C22C1/02C22F1/02C22F1/08
Inventor 甘春雷郑开宏黎小辉王顺成农登黄正华
Owner GUANGDONG INST OF MATERIALS & PROCESSING
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