Precious Clad Metal is a new technical material, based on different industry needs, formed by advanced indoor temperature composite technology or Hot Composite Technique; Silver Inlay and Precious Metal Clad is rolled with different characteristic material strips composite alloy material and base material strip. Their alloy and base material characteristic are well preserved, and the Mid Inlay Clad Metal compound characteristic are very good, esp. The Silver Copper Alloy 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.
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.
Silver Inlay and Precious Metal Clad Characteristics:
1-Offer flexibility of material design,being able to product the electrical contact with high mechanical and electrical contact characteristics ;
2-Save precious metal materials with low prices, as precious metal is only used at electrical contact spots;
3-Bimetallic Strip Metals is suitable for continuous automatically manufacture .It does not need other manufacture process ,such as welding or soldering after its formation .Composite Strip Stamping Parts simplifies manufacturing process of electrical parts with high productivity and low cost and raises the assembly precision credibility of electrical component;
4-Precious Metal Composite Strip Stamping is produced by sintering extrusion process, with a density of up to 99.9%. The second component of the silver base is fibrous, which greatly improves the mechanical strength of the wire and improves the Noble Metal Composite Strip resistance to welding, arc burn resistance and mechanical wear resistance;
5-The chemical coating method, co-deposition method and pre-oxidation process are used to make the material's grain refinement, uniform organization, and no segregation in the microstructure, eliminate oxide barren areas, and produce wires with excellent electrical properties.
Competitive advantages of Copper Silver Alloy Composite Strip:
Silver metal oxide/copper/iron & nickel (AgMeO/Cu/Fe&Ni) three-layer composite strip:
(1)Technical advantages: The project AG/Cu Clad Strip is based on the company’s invention patents for processing and production processes, using high-temperature solid-phase composite rolling production technology, heated to a temperature above the metal recrystallization temperature in a protective atmosphere, and completed under the effect of rolling deformation Rolling and compounding of different metals, with independent core technology, currently there are only a handful of manufacturers capable of producing three-layer metal composite strip, and our Copper/Brass Silver Overlay is a leading position in China;
(2) Product performance advantages: The project product Silver Alloy Strip uses silver metal oxide (AgMeO) instead of the traditional material silver metal cadmium oxide (AgCdO), which combines the excellent electrical properties and oxidation resistance of silver metal oxide and the good physical and mechanical properties of copper. Performance, as well as the excellent welding performance of iron, form a superior comprehensive performance (electrical contact performance and mechanical performance).All technical indicators have reached the company’s design requirements, with excellent performance, and comply with the EU RoHS Directive and my country’s "Administrative Measures for the Prevention and Control of Environmental Pollution by Electronic Wastes". All environmental indicators of the affected exhaust gas, waste water and waste residue meet the requirements of the environmental protection department;
(3) Leading industry level: the project product silver metal oxide/copper/iron & nickel (AgMeO/Cu/Fe&Ni), and break the technological monopoly of foreign counterparts in the production of such materials, and solve the high procurement cost of the majority of users. Long cycle and other issues, while filling the gaps in this domestic technology of Silver Copper Composite Sheet.
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 !