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On-line solid solution treatment method for copper alloy used for lead frame

A solid solution treatment and lead frame technology, applied in the field of alloy materials, can solve problems such as difficulty in achieving results, increasing investment, and difficult processing, and achieve low cost, energy saving, and good results

Inactive Publication Date: 2010-08-11
GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual production, especially when the horizontal continuous casting method is used to produce copper alloy slabs, the use of special solution treatment equipment not only increases the investment, but also makes it difficult to handle because of the relatively large coil weight. to great effect

Method used

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  • On-line solid solution treatment method for copper alloy used for lead frame
  • On-line solid solution treatment method for copper alloy used for lead frame
  • On-line solid solution treatment method for copper alloy used for lead frame

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] According to the method shown in the invention, the precipitation strengthening type Cu-Fe-P alloy in actual production was tested, and the alloy composition is shown in Table 1 below. Embodiment Considering the heat loss between the heat insulation layers, the method that the temperature of the strong heating zone is slightly higher than the temperature of the heat preservation zone (in practice, the temperature can be adjusted as required), the temperature of the strong heating zone is 860 ° C, and the length of this zone is 0.8 m; the temperature of the heat preservation area is 850°C, and the length of this area is 4.2m; the temperature of the temperature compensation area is 900°C, and the length of this area is 0.2m.

[0029] Table 1 Composition of Cu-Fe-P alloy used in test

[0030] alloy(%)

Fe

P

Zn

Impurities

Cu

Component range

2.1～2.4

0.01～0.035

0.1～0.15

≤0.01

margin

[0031] In the test, the ...

Embodiment 2

[0036] According to the method shown in the invention, the precipitation strengthening type Cu-Ni-Si alloy in actual production was tested, and the alloy composition is shown in Table 1 below. Embodiment Considering the heat loss between the heat insulation layers, the method that the temperature of the strong heating zone is slightly higher than the temperature of the heat preservation zone (in practice, the temperature can be adjusted as required), the temperature of the strong heating zone is 920 ° C, and the length of this zone is 0.72 m; the temperature of the heat preservation area is 900°C, and the length of this area is 7.2m; the temperature of the temperature compensation area is 1020°C, and the length of this area is 0.36m.

[0037] Table 1 Composition of Cu-Fe-P alloy used in test

[0038] alloy(%)

Ni

Si

Mg

Impurities

Cu

Component range

2.8～3.4

0.3～0.65

0.01～0.05

≤0.01

margin

[0039] In the test, the...

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Abstract

The invention provides an on-line solid solution treatment method for a copper alloy used for a lead frame, which comprises the following steps: (1) carrying out horizontal continuous casting on casing blanks, firstly passing a heating region, and controlling the temperature between 750 and 950 DEG C and the region length between 0.5 and 1.5 m; (2) entering a heat insulation region, and controlling the temperature between 750 and 950 DEG C and the region length between 2 and 10 m; (3) subsequently, entering a temperature compensation region which compensates the temperature loss at an outlet caused in the final water cooling stage because of the heat transfer, and controlling the temperature between 800 and 1200 DEG C and the region length between 0.1 and 1 m; and (4) finally, entering a water cooling region for solid solution treatment to reach the goal of solid solution treatment, and controlling the water cooling intensity between the cooling water pressure of 50 and 150 KPa. The production method is simple, has low cost, and can realize the industrialization easily. The alloy treated by the on-line solid solution treatment method developed by the invention has sufficient solid solution, and is particularly suitable for producing sediment reinforced copper alloy lead frame materials by adopting a horizontal continuous casting method in the actual production.

Description

technical field [0001] The invention belongs to the technical field of alloy materials, and mainly relates to an online solid solution treatment method for copper alloys used in lead frames. It is especially suitable for producing precipitation-strengthened lead frame materials by horizontal continuous casting. Background technique [0002] Integrated circuits are the core of modern electronic information technology and the basis for the development of electronics, computers and information industries. As the main material for manufacturing integrated circuits, the lead frame plays the role of supporting chips, protecting internal components, connecting external circuits and dissipating heat from components, so it occupies an extremely important position in the manufacture of integrated circuit devices. With the development of the integrated circuit industry, the demand for lead frame materials is increasing day by day. Although the development and development of lead fram...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/08
Inventor 黄国杰程镇康谢水生胡长源陈建华米绪军马万军王建立郑国辉马吉苗方奶云汪德强
Owner GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG
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