Copper-steel-copper composite material for thin gauge electrical connector terminal and preparation method thereof

A technology for electrical connectors and composite materials, which is applied in chemical instruments and methods, lamination devices, lamination auxiliary operations, etc. Problems such as inability to produce independently, to achieve the effect of solving the inability to produce independently, reducing processes, and breaking through the lower limit of thickness

Inactive Publication Date: 2018-06-15
NORTHEASTERN UNIV
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the copper alloy materials used in electrical connector terminals are not a good balance between high conductivity and high strength
At the same time, the domestic term

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Copper-steel-copper composite material for thin gauge electrical connector terminal and preparation method thereof
  • Copper-steel-copper composite material for thin gauge electrical connector terminal and preparation method thereof
  • Copper-steel-copper composite material for thin gauge electrical connector terminal and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036] Example 1:

[0037] The T3 pure copper strip with a thickness of 0.6mm and the Q235 steel strip with a thickness of 0.3mm are cold-rolled and composited to prepare a copper-steel-copper composite ultra-thin strip. The main steps are as follows:

[0038] (1) Put the coils of copper strip, steel strip, and copper strip to be compounded on three reels in sequence, and the ends of the three-layer metal strip are wound on the other side of the reel through the work roll gap of the rolling mill;

[0039] (2) Start the on-line surface treatment device of the rolling mill to polish the surface of the copper strip and the steel strip to be combined with a steel brush. At the same time, start the air knife to blow the polished metal surface. The online surface treatment device includes two parts: steel brush polishing and air knife cleaning. The steel brush polishing part includes four steel brushes 6. During the metal compounding process, the rotating direction of the steel brush 6 is...

Example Embodiment

[0046] Example 2:

[0047] The T3 pure copper strip with a thickness of 0.5mm and the Q345 steel strip with a thickness of 0.5mm are cold-rolled and compounded to prepare a copper-steel-copper composite ultra-thin strip. The main steps are as follows:

[0048] (1) Put the coils of copper strip, steel strip, and copper strip to be compounded on three reels in sequence, and the ends of the three-layer metal strip are wound on the other side of the reel through the work roll gap of the rolling mill;

[0049] (2) Start the on-line surface treatment device of the rolling mill to polish the surface of the copper strip and the steel strip to be combined with a steel brush. At the same time, start the air knife to blow the polished metal surface. The surface treatment equipment includes two parts: a steel brush grinding part and an air knife cleaning part. The steel brush grinding part includes four steel brushes 6. During the metal compounding process, the rotation direction of the steel br...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Surface roughness valueaaaaaaaaaa
Login to view more

Abstract

The invention relates to the field of electronic device materials and discloses a copper-steel-copper composite material for a thin gauge electrical connector terminal and a preparation method of thecopper-steel-copper composite material for the thin gauge electrical connector terminal. The preparation method comprises the following steps: using a steel strip of Q195, Q235, Q345 or stainless steel and the like as a substrate and pure copper T3 as a coating material, utilizing a cold-rolling composite process, performing surface treatment-cold rolling compounding-diffusion annealing-cold rolling thinning to compound three layers of metal strips of copper, steel and copper, thus preparing the copper-steel-copper composite material of which the finished product thickness is 0.01 to 0.3mm, wherein the thickness ratio of various layers of the metal strips, namely copper to steel to copper is equal to (30% to 45%): (10% to 40%): (30% to 45%). The steel layer in the composite material mainlybears external loads, and the copper layer plays a role of conduction. The material prepared by the invention has good bonding strength and excellent mechanical properties and conductivity, thereby providing a feasible solution to solve the problem that copper alloy is difficult to take account of the conductivity and high strength.

Description

technical field [0001] The invention belongs to the field of composite materials for thin-gauge electrical connector terminals, and in particular relates to a copper-steel-copper composite material used for thin-gauge electrical connector terminals and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of the electronic information industry, my country has also made a series of major technological breakthroughs in the fields of communications, high-performance computers, and digital television. At present, my country has become the world's largest manufacturing base of electronic information products. As the equipment for information exchange becomes more and more intelligent, the complexity of the circuits in electronic equipment has increased significantly, and the internal electronic components are developing towards high performance and miniaturization. For example, the performance of electrical connector terminals fo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B32B37/10B32B37/08B32B38/00B32B38/16
CPCB32B37/10B32B37/0053B32B37/08B32B38/0012B32B38/162B32B2307/202B32B2307/50
Inventor 刘相华陈敬琪闫述宋孟孙祥坤赵启林
Owner NORTHEASTERN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap