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Copper-nickel-tin alloy and preparation method for wires thereof

A copper-nickel-tin and alloy technology, applied in the field of metallurgical industry, can solve the problems of low yield, long production process, high production cost, etc., and achieve the effect of simple processing equipment, high production efficiency and small investment

Inactive Publication Date: 2012-06-06
厦门火炬特种金属材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the production process of copper-nickel-tin alloy wire widely used at home and abroad is: using vacuum melting technology to prepare alloy ingots, pressure processing to rods by large-scale processing equipment, and then using drawing technology to produce alloy wires. The entire production process is long. The finished product rate is not high, and the production cost is high

Method used

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  • Copper-nickel-tin alloy and preparation method for wires thereof
  • Copper-nickel-tin alloy and preparation method for wires thereof
  • Copper-nickel-tin alloy and preparation method for wires thereof

Examples

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Effect test

Embodiment 1

[0025] 1. Ingredients, smelting, and pre-furnace analysis: 425KG of copper, 47.5KG of nickel, and 27.5KG of tin are used as raw materials to make furnace materials that meet the composition requirements. After approval, they are added to a self-made power frequency holding furnace for melting. After the charge is melted, it is carefully stirred and samples are taken for chemical analysis before the furnace. The weight percentage of the alloy composition obtained after the charge is melted by the above formula is: copper 84.96%, nickel 9.5%, tin 5.46%, and impurities 0.08%.

[0026] 2. Refining: heat the solution to 1200-1250°C, remove slag and add covering agent, and then deoxidize and degas the molten metal. 0.03% rare earth cerium is added by weight percentage as a grain refiner.

[0027] 3. Horizontal continuous casting: Start the tractor for horizontal continuous casting, adopt the pull-stop-retreat-stop traction process, and the continuous casting products are taken up an...

Embodiment 2

[0037] The basic principles and processes of Examples 2-4 are the same as those of Example 1, the difference lies in the chemical composition of the alloy. Table 2 is the chemical composition of the alloy of each embodiment and the corresponding mechanical property parameters (in the table, example 2 corresponds to the product of embodiment 2, example 3 corresponds to the product of embodiment 3, and example 4 corresponds to the product of embodiment 4) .

[0038] Table 2 Examples 2-4 Mechanical Properties of High Elastic Copper Alloy Wire Products

[0039]

[0040] As can be seen from Table 2, the wire rod product prepared by a kind of high elastic copper alloy production process provided by the present invention is compared with the copper-nickel-tin alloy wire rod prepared by vacuum smelting technology and the high elastic beryllium copper wire rod (shown in table 1) , with comparable mechanical properties.

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Abstract

The invention discloses copper-nickel-tin alloy and a preparation method for wires thereof. The copper-nickel-tin alloy comprises, by weight, 7 to 11% of nickel, 4 to 8% of tin and 0.02 to 0.04% of cerium, with the balance being copper and unavoidable impurities; the alloy has same performance as beryllium-copper alloy does. Horizontal continuous casting is used in the preparation method for wires of the copper-nickel-tin alloy; compared to vacuum melting commonly used at home and abroad, the method provided in the invention has the advantages of high rolling yield, simple processing equipment, small investment, short process flow and capacity of obtaining wire products with same excellent performance.

Description

technical field [0001] The invention belongs to the field of metallurgical industry, and in particular relates to a method for preparing a copper-nickel-tin alloy and a wire rod thereof. Background technique [0002] Among the highly elastic copper alloys, beryllium bronze is the most commonly used elastic alloy. However, the dust in the production process is poisonous and the cost is extremely high. It is not suitable for working at high temperature for a long time, and its application is limited in many occasions. [0003] Copper-nickel-tin alloy is a copper-based elastic alloy that does not contain beryllium. Compared with beryllium copper, its production process is non-toxic, low in cost, and has high thermal stability and high temperature strength. It is easy to process by cold and hot pressure. It is easy to solder and is recognized as a good substitute for beryllium copper. After cold working and aging, this kind of alloy can obtain high strength, hardness and excell...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/06B22D11/00C22F1/08
Inventor 卢晓军黄文辉秦如德李祥刘永红
Owner 厦门火炬特种金属材料有限公司
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