1-Electrical conductivity
2-Good thermal conductivity
3-Oxidation resistance
4-High mechanical strength
5-Low price, saving precious metals
6-Layer Material:Ag,AgNi,AgSnO2,AgSnO2ln2O3,AgCdO,AgZnO,etc,thickness 0.01~1.0mm or as customers’ requires OEM
7-Base Material:Copper,Brass,Steel etc,thickness 1.0~8.0mm as customers’ requires OEM
8-Composite Style:Inlay, Double-sided inlay, Full back, Three-layer composite, Side composite
9-AG/Cu Clad Strip application: Touch Switches, Wall Switches, Relays, Circuit Breakers,Contact Bridges,Micromotor Commutators,IC Lead Frames,Thermostats,Sockets,Electronic Components,
Miniature Connectors,and other low-voltage electrical contacts.
Determination of the composite strength of silver-copper composite strips in China(GB/T 15159-2008/)
A.1 This appendix is applicable to the bonding firmness of the composite and mosaic composite materials of the testing surface and the matrix
A.2 Test of the firmness of the combination of the composite layer and the substrate
A.2.1 Sample preparation
According to the number of samples specified in the standard, randomly cut Electrical Contacts strip samples with a width greater than 4mm in the rolling direction from the finished product to make test samples.
A.2.2 Sample device
The test device should be able to effectively clamp one end of the sample, and the other end can be used for 90° bending, with a bending radius R≥2t (t is the thickness of the sample)
A.2.3 Test method
The fastness test method is shown in A.1.
A.2.4 Principle
The composite silver copper material undergoes back-and-forth bending and receives stress in the opposite direction, which promotes its delamination. If it is not delamination, it is strong enough.
A.2.5 Judgment
After the sample Silver Copper Alloy Strip has been bent 4 times, use a 7-fold magnifying glass to check the bent part. The two-layer bonding surface is qualified if there is no opening and delamination, otherwise it is unqualified.
A.3 Test of the firmness of the bond between the edge of the composite strip and the base of the Precious Clad Metal composite strip
A.3.1 Sample preparation
According to the number of samples specified in the standard, randomly cut Silver Clad Copper Strip samples with a width greater than 4mm from the finished product perpendicular to the rolling direction to prepare samples.
A.3.2 Test device
Same as A.2.2
A.3.3 Test method
The fastness test method is shown in Figure A.2 and Figure A.3.
A.3.4 Principle
After the Copper Silver Alloy Composite Strip material is bent back and forth, it is subjected to stresses in the opposite direction, which promotes its delamination. If AG/Cu Clad Strip is not delamination, it is strong enough.
A.3.5 Judgment
After the sample Silver Alloy Strip is bent at 90°, the edge of the strip and the matrix are split and layered as unqualified.
A.3.6 Apparatus and equipment
The test device can be manufactured according to the above-mentioned diagram.
Bimetal Strip Ag/Cu Technology evolution:
The surface material is changed from the original pure silver and silver nickel to silver cadmium oxide and silver tin oxide;
The inlay method of the surface material has been increased and improved from the initial full-back inlaying to partial inlaying;
The base material is improved from copper to copper-iron or copper-iron-copper;
The composite processing technology is improved from thermal composite to roll welding.
This series of changes can not only greatly increase the service life of materials and components, but also reduce the use of rare and precious metal silver under the condition of ensuring the performance. This fundamentally alleviates the problem of difficult and high-cost purchases for the majority of users,like Bimetallic Strip Thermostat,Bimetallic Strip Circuit Breaker,Side Composite Strip of Fuse etc. and at the same time has improved the level of domestic metal composite technology, promoted the development of my country's electrical and electronic products and other temperature control industries, and created obvious social and economic benefits for the country.
Silver Clad Brass Strip, Silver Clad Copper Strip and Silver Onlay Bronze Strip are kind of new functional composite material . It is based on the copper alloy . Precious Metal, silver alloy are cladded on the base metal as inlay or overlay through special bonding process.Copper Silver Alloy Composite Strip is a new technical material ,based on different industry needs, formed by advanced indoor temperature composite technology or Hot Composite Technique; It is rolled with different characteristic material strips composite alloy material characteristic are well preserved ,and the Brass Silver Overlay compound characteristic are very good ,est. AG/Cu Clad Strip electrical character and its wearability are much better than single precious metal contact material (such as gold and silver ). Beside ,it is a saving of precious metal ,keeping low cost and consistency of social development .
Contact Information:
Mr.Terry Young (Sales Manager)
Apollo Electronic Components (Xiamen) Co.,Ltd
Xiamen Apollo Stamping Welding Technology Co., Ltd
Add:225#,Jinshang Road,Huli District,Xiamen City,Fujian Province,China,361009
Tel&Fax: 0592-5765084, Mob/WhatsApp/WeChat: 0086-13859903038 ,QQ: 1260358661
Email: yfd@china-electronic-components.com
Web: www.china-electronic-components.com , www.stamping-welding.com
Since 1990,professional in Silver Contact Rivet&Core&Screw Terminal for Relay&Switch&Contactor ect Stamping&Welding solutions !