CuNiSiMg alloy material and preparation method thereof as well as method for preparing strip using alloy material

A technology of alloy materials and strips, which is applied in the preparation of strips from the alloy materials, CuNiSiMg alloy materials and its preparation fields, can solve problems such as dependence on imports, restricting the development of the electronic information industry, and unrealized industrialized production, so as to improve production efficiency , good shape and surface quality, and the effect of reducing production costs

Active Publication Date: 2012-10-10
TONGLING JINVI COPPER CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the failure of breakthroughs in key technologies such as melting and casting of large-scale ingots, on-line solid solution and quenching, the industrial production of Cu-Ni-Si alloy strips has not yet been realized. Almost all such alloy strips rely on imports, which seriously restricts my country. The development of electronic information industry

Method used

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  • CuNiSiMg alloy material and preparation method thereof as well as method for preparing strip using alloy material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Put 95.58 parts by weight of copper and 1.40 parts by weight of nickel into a melting furnace, heat to 1250 ° C ~ 1300 ° C to melt, spray charcoal carbon powder on the surface of the metal during the melting process to prevent the metal from being oxidized, and the furnace temperature drops to After 1150°C to 1200°C, add 2.54 parts by weight of copper-silicon alloy with 13% silicon content, 0.50 parts by weight of zinc, 0.45 parts by weight of copper-magnesium alloy with 18% magnesium content, and 0.36 parts by weight of copper-phosphorus with 10% phosphorus content. The alloy is stirred and melted evenly and cast into a 220×620×Lmm alloy ingot in a semi-continuous casting machine, and then the alloy ingot is heated and kept in a walking heating furnace, and the temperature of the heating furnace is controlled at 900°C to 920°C. The holding time is 3-4 hours to ensure that the dendrite segregation of the ingot is completely eliminated, the temperature difference of the i...

Embodiment 2

[0037] The cast ingot alloy in Example 1 is directly put into the two-roller reversible hot rolling mill for multi-pass back and forth hot rolling, the final rolling temperature is guaranteed to be above 650°C, and the final rolling is directly rolled to After 15mm, directly spray water on the hot rolling track to cool to about 60°C for coiling. After the hot-rolled coil is uncoiled, the upper and lower surfaces and two sides of the hot-rolled strip are simultaneously milled on a double-sided milling machine. The surface milling amount is 1 mm per side, and the side milling amount is 2 mm per side. Then roll. The milled coil is uncoiled, roughed in multiple passes on a reversing roughing mill, the thickness is rolled from 13.0mm to 4.8mm, and then coiled. Put the rough-rolled strip coil into a bell-type annealing furnace with a protective atmosphere for an aging treatment, keep it at 500°C for 6 hours, and then cool it naturally. Roll the strip after the primary aging treatm...

Embodiment 3

[0040] Put 95.09 parts by weight of copper and 1.80 parts by weight of nickel into a melting furnace, heat to 1250°C-1300°C to melt, spray charcoal carbon powder on the surface of the metal during the melting process to prevent the metal from being oxidized, and the furnace temperature drops to After 1150°C to 1200°C, add 2.53 parts by weight of copper-silicon alloy with 17% silicon content, 0.10 parts by weight of zinc, 0.28 parts by weight of copper-magnesium alloy with 22% magnesium content, and 0.20 parts by weight of copper-phosphorus with 14% phosphorus content. The alloy is stirred and melted evenly and cast into a 220×620×Lmm alloy ingot in a semi-continuous casting machine, and then the alloy ingot is heated and kept in a walking heating furnace, and the temperature of the heating furnace is controlled at 900°C to 920°C. The holding time is 3-4 hours to ensure that the dendrite segregation of the ingot is completely eliminated, the temperature difference of the ingot o...

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Abstract

The invention discloses a CuNiSiMg alloy material which comprises the following components in percentage by weight: 1.40-1.80% of nickel, 0.33-0.43% of silicon, 0.05-0.10% of magnesium, 0.02-0.05% of phosphorus, 0.10-0.50% of zinc, and the balance of copper and inevitable impurities. The CuNiSiMg alloy material disclosed by the invention and the strip formed by the alloy material have the strength not less than 650 MPa, conductivity not less than 55%IACS, and softening temperature not less than 400 DEG C, and have the performances of high strength, high conductivity and high temperature resistance.

Description

technical field [0001] The invention belongs to the field of materials for integrated circuits, and in particular relates to a CuNiSiMg alloy material, a preparation method thereof, and a method for preparing strips from the alloy material. Background technique [0002] Integrated circuits are the core of modern electronic information technology and the basis for the development of electronics, computers and information technology. Lead frame is one of the key components of integrated circuits, which plays an important role in supporting integrated circuit chips, protecting internal components, connecting external circuits and dissipating working heat. Large-scale integrated circuit lead frames need to be manufactured with high-precision ultra-thin copper alloy strips to meet the requirements of integrated circuit miniaturization, precision manufacturing and efficient heat dissipation. [0003] At present, the copper alloys for lead frames used in the market are mainly Cu-F...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/06C22F1/08
Inventor 汪明朴贾延琳陈明勇刘建设刘敦伟易志辉夏承东陈畅侯文武刘清兰詹飞孟繁伟徐斌陈卫国杨志龙王之平吕杰王兴壮骆启荣马义兵
Owner TONGLING JINVI COPPER CORP
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