On August 28, 2021, the "Connector and Cable High-performance Copper Alloy Application Seminar" led by the Electrical Connector Components Branch of China Electronic Components Industry Association was grandly held. Experts in the sub-committee introduced and exchanged material application requirements and introduced and exchanged new material research and development results.
China's high-end connector technology company: ZHGD [a high-tech enterprise that provides high-end precision connector solutions for China's aviation and defense and high-end manufacturing], SXHD Precision Interconnect Technology Corporation, and representatives of many Chinese aerospace companies, respectively, on high-performance copper Issues such as alloy demand and development enter the communication link.
NBBW High Performance Alloy Technology Corporation, as the co-organizer and as the representative of the world's leading high-end connector alloy material enterprises, respectively brought keynote speeches on the research and development and application of high-performance copper alloy strips, wires and bars.
Create high-performance copper alloy strip solutions for 5G high-speed connectors
In response to "Research and Application of High-Performance Copper Alloy Strips", Dr. Zhang Min, CTO of NBBW Alloy Strips, delivered a keynote speech on "High-Performance Copper Alloys for 5G High-Speed Connectors". Taking the high-speed data transmission requirements of the Internet of Everything as the starting point, it shared the alloy material solutions for smart terminals, communication base stations, and cloud computing server connectors. Facing the current development trend of "miniaturization, high speed, high reliability, and high current" of high-speed connectors, high-performance copper alloys need to be comprehensively considered from the four dimensions of electrical conductivity & thermal conductivity, tensile strength, stress relaxation, and bending. .
In addition, the application of Press-fit technology is also worthy of attention. Press-Fit is a method to achieve reliable connection of electrical contacts through cold connection and solder-free methods. Elastic or solid pins are pressed into metalized PCB holes. The pins and metalized holes are used to form a reliable, Permanently tightly connected. One of the characteristics of Press-fit is that the pins do not need to be repeatedly inserted and removed (usually the minimum insertion force and retention force are defined). This technology is widely used in the manufacture of electrical systems in automobiles, consumer electronics and other markets.
Compared with traditional soldering, Press-fit has obvious advantages: When crimping, PCB and components will not generate thermal stress, and a tight connection can be formed in the contact area between press-fit and PCB, with no solder bridging and no flux Residual, no need to clean, recyclable, environmentally friendly and many other advantages. Boway 70250 PRESSFIT improves the insertion force and pull-out force of the PRESSFIT connection through a special process, which can improve the contact stability. The high-strength bending performance of Boway 70318 and the yield strength of Boway 19920 up to 950 MPa or more provide an effective guarantee for the application of 5G high-speed connectors.
In-depth study of the development and application of high-performance copper alloy wire
At the seminar, Dr. Shao Haiyang, CTO of NBBW alloy wire, delivered a keynote speech on "Research and application of high-performance copper alloy wire." Detailed analysis of the current development and future trends of alloy wires, and brings two NBBW high-performance copper alloy solutions. High-strength, high-conductivity, high-performance copper alloy wire is a typical solid solution + precipitation-strengthened alloy with superior electrical conductivity and strength. In high-end automotive connectors, it is especially reliable under high temperature conditions. The excellent electrical and thermal conductivity can achieve low temperature rise and meet the needs of large current transmission. High-conductivity and medium-strength alloys are ideal materials for automotive wiring harnesses. The IACS conductivity of the bare alloy conductor is 82%-96%, the strength is 1.5-2 times higher than that of copper, and it has higher resistance to high temperature softening. It is used in automobile signal lines, speaker wires, robot cables, 3C ultra-fine wires, etc. The field is widely used.
In-depth study of the development and application of high-performance copper alloy wire
Aiming at "Research and Application of High-Performance Copper Alloy Bars", Dr. Yongli Chen, CTO of NBBW Alloy Bars, delivered a keynote speech on "Research and Application of Copper Alloy Bars Products in the Field of Connectors". Focusing on important topics such as "Copper alloy bars for smart wearable PoGo Pins" and "High-performance copper alloys for connectors under special conditions", the lead-free free-cutting bismuth brass contract, free-cutting tellurium-copper alloy, high-strength free-cutting Copper alloys, beryllium-free high-elastic copper alloys, and wear-resistant and corrosion-resistant series of various alloy bar solutions, and detailed descriptions of material properties and applications are also used for alloy bars in new energy vehicle charging, oil drilling, engineering machinery, etc. The application of the field has opened up the space.