Novel elastic conductive alloy and its preparing method

An elastic conductive and alloy technology, applied in the field of metal materials, can solve the problems of increasing process cost, influence of material application, influence of material performance, etc., and achieve the effect of high strength, excellent process performance and good conductivity stability.

Inactive Publication Date: 2005-03-02
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, beryllium is a highly toxic element, which has a certain impact on the application of materials.
Subsequent development of vacuum smelting Cu-Ni-Sn alloy, because the Sn content in the alloy is too high, will cause serious composition segregation, it needs a long time solid solution treatment to make the composition uniform, which increases the process cost and also affects the quality of the material. performance

Method used

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  • Novel elastic conductive alloy and its preparing method

Examples

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Effect test

Embodiment 1

[0013] Example 1: Preparation of spray-formed Cu-6Ni-4Sn-0.05Y alloy and its spring sheet. The preparation process of Cu-6Ni-4Sn-0.05Y alloy is as described above. The superheat of the melt is about 150°C, and the inner diameter of the catheter is φ4mm; the atomizing gas is nitrogen, and the initial set pressure is 1.8MPa; the alloy liquid flow is atomized into fine droplets, and the droplets are then deposited on a distance from the atomizer On a rotating copper substrate with a diameter of about 360mm, the rotation speed of the substrate is 8rpm, and the gas / solution flow ratio is about 0.5m 3 / kg. The deposited blank is quenched in solution water at 800°C for 3min, cold-rolled with 90% deformation, aged at 350°C for 1h, and then pressed into a spring sheet.

Embodiment 2

[0014] Example 2: Preparation of spray-formed Cu-9Ni-6Sn-0.5Y alloy and its spring sheet. The preparation process of Cu-9Ni-6Sn-0.5Y alloy is as described above. The superheating degree of the melt is about 140°C, and the inner diameter of the catheter is φ4mm; the atomizing gas is nitrogen, and the initial setting pressure is 1.8MPa; the alloy liquid flow is atomized into fine droplets, and the droplets are then deposited on a distance from the atomizer On a rotating copper substrate with a diameter of about 350mm, the rotation speed of the substrate is 8rpm, and the gas / solution flow ratio is about 0.4m 3 / kg. The deposited blank is quenched in solution water at 850°C for 3min, cold-rolled with 90% deformation, aged at 400°C for 1h, and pressed into a spring sheet.

Embodiment 3

[0015] Example 3: Preparation of spray-formed Cu-15Ni-8Sn-3.5Y alloy and its spring sheet. The preparation process of Cu-15Ni-8Sn-3.5Y alloy is as described above. The superheat of the melt is about 150°C, and the inner diameter of the catheter is φ4mm; the atomizing gas is nitrogen, and the initial set pressure is 1.8MPa; the alloy liquid flow is atomized into fine droplets, and the droplets are then deposited on a distance from the atomizer On a rotating copper substrate with a diameter of about 370mm, the rotation speed of the substrate is 8rpm, and the gas / solution flow ratio is about 0.6m 3 / kg. The deposited blank is quenched in solution water at 900°C for 3 minutes, cold-rolled with 90% deformation, aged at 450°C for 1 hour, and pressed into a spring sheet.

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Abstract

The present invention relates to one kind of elastic conductive alloy and its preparation process. The alloy consists of Cu, Ni, Sn and rare earth element Y in certain proportion, and its preparation process includes smelting mother alloy, spraying deposited blank, rolling to deform, ageing and other steps. The alloy of the present invention has not only high strength, high hardness, high elasticity, good weldability, good platability and other advantages, but also excellent heat stress relaxation resistance, good conducting stability and excellent technological performance. It may be used in electronic industry to replace beryllium bronze in making various precise instrument elements.

Description

technical field [0001] The invention belongs to the technical field of metal materials, in particular to a novel elastic conductive alloy Cu-Ni-Sn-Y alloy and a preparation method thereof. Background technique [0002] The traditional elastic conductive alloy is beryllium bronze, and the commonly used production process is vacuum smelting, supplemented by follow-up processes such as solid solution, deformation and aging, and finally a product with better performance is obtained. However, beryllium is a highly toxic element, which has a certain impact on the application of materials. Subsequent development of vacuum smelting Cu-Ni-Sn alloy, because the Sn content in the alloy is too high, will cause serious composition segregation, it needs a long time solid solution treatment to make the composition uniform, which increases the process cost and also affects the quality of the material. performance. Contents of the invention [0003] The object of the present invention is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/06
Inventor 严彪王军唐人剑毛彭龄章靖国殷俊林尤富强
Owner TONGJI UNIV
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