High-strength high-elasticity zinc-copper-nickel alloy and processing method thereof

A processing method and technology of zinc-white copper, applied in the field of high-strength and high-elastic zinc-white copper alloy and its processing, can solve problems such as harm to human body, and achieve the effects of high fatigue resistance, good corrosion resistance and good electrical conductivity

Active Publication Date: 2012-10-31
NINGBO XINGYE SHENGTAI GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, beryllium bronze has a natural disadvantage, that is, beryllium is harmful to the human body.

Method used

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  • High-strength high-elasticity zinc-copper-nickel alloy and processing method thereof
  • High-strength high-elasticity zinc-copper-nickel alloy and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The alloy of the invention is smelted using the following raw materials: electrolytic copper, pure nickel, pure cobalt, zinc, pure tin and copper-silver master alloy. The composition of the alloy is shown in Example 1 of Table 1.

[0031] 1. Melting: use non-vacuum induction furnace for melting. The order of adding the alloy is: first add Cu, after melting, then add Ni, add covering agent (charcoal) and keep warm for 5-10min, after fully degassing and removing impurities, then cover with burning charcoal about 10mm thick. Finally, add cobalt (covered with copper foil), pure tin, copper-silver intermediate alloy, add Zn when pouring into the holding furnace, the melting temperature is 1250°C, keep it for 10 minutes, let it stand for 5-10 minutes, and then come out of the furnace for drawing and casting. The temperature was 1180°C and the strip exit temperature was 350°C.

[0032] 2. Face milling: face milling of the alloy (1mm milling on the upper and lower surfaces, 1...

Embodiment 2

[0043] The alloy of the invention is smelted using the following raw materials: electrolytic copper, pure nickel, cobalt, zinc, copper-silver master alloy and copper-chromium master alloy. The composition of the alloy is shown in Example 2 of Table 1.

[0044] 1. Melting: use non-vacuum induction furnace for melting. The order of adding the alloy is: first add Cu, after melting, then add Ni, add covering agent (charcoal) and keep warm for 5-10min, after fully degassing and removing impurities, then cover with burning charcoal about 10mm thick. Then add cobalt (covered with copper foil), copper-chromium master alloy, copper-silver master alloy, add Zn when pouring into the holding furnace, the melting temperature is 1280°C, keep it for 10 minutes, let it stand for 5 to 10 minutes, and then take it out of the furnace for drawing and casting , The casting temperature is 1170°C, and the strip outlet temperature is 330°C.

[0045] 2. Face milling: face milling of the alloy (1mm m...

Embodiment 3

[0056] The alloy of the invention is smelted using the following raw materials: electrolytic copper, pure nickel, cobalt, pure tin, zinc, copper-phosphorus intermediate alloy. The composition of the alloy is shown in Example 3 of Table 1.

[0057] 1. Melting: use non-vacuum induction furnace for melting. The order of adding the alloy is: first add Cu, after melting, then add Ni, add covering agent (charcoal) and keep warm for 5-10min, after fully degassing and removing impurities, then cover with burning charcoal about 10mm thick. Finally, add cobalt (covered with copper foil), pure tin, copper-phosphorus intermediate alloy, add Zn when pouring into the holding furnace, the melting temperature is 1290°C, keep it for 10 minutes, let it stand for 5-10 minutes, and then come out of the furnace for drawing and casting. The temperature was 1160°C and the strip exit temperature was 365°C.

[0058] 2. Face milling: face milling of the alloy (1mm milling on the upper and lower surfa...

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Abstract

The invention relates to a high-strength high-elasticity zinc-copper-nickel alloy and a processing method thereof, belonging to the field of nonferrous metal processing. The high-strength high-elasticity zinc-copper-nickel alloy comprises the following components in percentage by weight: 13-18% of Ni, 15-20% of Zn, 1-2% of Co, 0.01-1% of at least one of Ag, Sn, Cr, P and Zr, and the balance of Cu, wherein (a) 15%<=Ni+Co<=20%, and (b) 6.5<=Ni/Co<=15. The high-strength high-elasticity zinc-copper-nickel alloy is subjected to draw casting by a horizontal continuous casting technique. The tensile strength sigma b of the copper alloy is 790-850 MPa, the plastic elongation percentage delta is 4-15%, the electric conductivity is 12-25% IACS, the corrosion resistance is good, and thus, the copper alloy can be widely used for manufacturing precision components and the like in the fields of instruments, meters, medical appliances, daily necessities, communications and the like.

Description

technical field [0001] The invention relates to a high-strength and high-elastic zinc-nickel-nickel alloy and a processing method thereof. The copper alloy is suitable for manufacturing precision parts in the fields of instruments, meters, medical equipment, daily necessities, communications, etc., and belongs to the field of non-ferrous metal processing. Background technique [0002] With the improvement of people's living standards, the development of modern industry and the needs of national defense construction, the application range of high-strength and high-elasticity copper alloy materials is becoming wider and wider, and the demand continues to increase. High-strength and high-elasticity copper alloy materials have excellent characteristics such as high strength, good elasticity, fatigue resistance, small elastic hysteresis, and corrosion resistance. They are widely used in electronics, aerospace, instruments, meters and automatic control industries to manufacture var...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/04C22C9/06C22C1/03C22F1/08
Inventor 马吉苗马万军王建立史久华苑和锋杨群央肖翔鹏黄国杰
Owner NINGBO XINGYE SHENGTAI GROUP
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