Unlock instant, AI-driven research and patent intelligence for your innovation.

cu-zn-sn-ca alloys for electrical and electronic equipment

A kind of electronic equipment and electrical technology, applied in the direction of electrical components, circuits, conductive materials, etc., can solve the problems of difficult pressure accuracy and achieve the effect of excellent strength

Inactive Publication Date: 2015-11-11
JX NIPPON MINING & METALS CORP
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the conventional Cu-Zn-Sn-based alloys disclosed in Patent Documents 1 to 4, the alloy design was not carried out in consideration of the pressure blanking property, and it became difficult to meet the pressure accuracy required recently.

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
  • cu-zn-sn-ca alloys for electrical and electronic equipment
  • cu-zn-sn-ca alloys for electrical and electronic equipment
  • cu-zn-sn-ca alloys for electrical and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0056] Hereinafter, examples of the present invention will be shown, but they are provided for better understanding of the present invention and are not meant to limit the present invention.

[0057] Using a high-frequency induction heating electric furnace, 2 kg of electrolytic copper was melted in a graphite crucible with an inner diameter of 60 mm and a depth of 200 mm. After covering the surface of copper water with charcoal sheets, add Zn and Sn, add 5% Ca-Cu master alloy, then add 50% Mg-Cu master alloy, Ni, Fe, Mn, Co, Ti, Cr, Zr, Al, P, Si, etc. In addition, CuS is added as necessary for the adjustment of the S concentration, and CuO is added as necessary for the adjustment of the O concentration. Adjust the temperature of the copper water to 1250°C, cast it into a mold after 10 minutes from the addition of various elements, and manufacture an ingot with a width of 60 mm and a thickness of 30 mm. The following steps are taken as standard steps to process it to a thick...

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
diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to Cu-Zn-Sn-Ca alloy used for electric and electronic equipment. By employing the Cu-Zn-Sn-Ca alloy as materials for preparing the electric and electronic equipment, the machining process of pressing and blanking is improved. The Cu-Zn-Sn-Ca alloy comprises 1-15% by mass of Zn, 0.1-0.6% by mass of Sn, and 0.05-0.1% by mass of Ca. Residues contains Cu and Cu alloy which are inventible impurity. The average grain diameter of a particle of a compound observed in parallel with a rolling plane is 0.3-0.8 and frequentness of the compound particles with diameter greater than 5[mu]mm is 10 / mm<2>.

Description

[technical field] [0001] The present invention relates to a Cu-Zn-Sn-Ca alloy suitable as a material for electronic components such as terminals, connectors, relays, and switches used in electrical and electronic equipment. Suitable Cu-Zn-Sn-Ca alloy for press blanking applications. [Background technique] [0002] Inexpensive brass is used for various terminals, connectors, relays, switches, etc. of electrical and electronic equipment in applications where manufacturing costs are important. In addition, phosphor bronze is used for applications that place emphasis on elasticity, and zinc-nickel copper is used for applications that place emphasis on elasticity and corrosion resistance. These copper alloys are solid-solution-strengthened copper alloys. Due to the action of alloy elements, the strength and elasticity will increase, but the electrical conductivity and thermal conductivity will decrease. [0003] In recent years, instead of solid solution strengthening copper al...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/04
CPCC22C9/04H01B1/026
Inventor 卫藤雅俊
Owner JX NIPPON MINING & METALS CORP