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Introduction to sterling silver contacts

Categories:Industry News
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Time of issue:2021-07-30 11:11
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(Summary description)Silver (Ag) can be ranked first among materials used as electrical contacts. It has the highest conductivity among metal materials, with a value of 106% IACS. The disadvantage of silver is that it is easy to vulcanize to form a black (AgS) vulcanized film, and has low hardness and is easy to wear. However, due to its excellent physical properties, silver is widely used as a low-energy circuit electrical contact. It is mainly used in the fields of small current electrical appliances such as radio, communication micro-switches, automatic control switches, thermostats, relays, calculators, and computers.

Introduction to sterling silver contacts

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Introduction to sterling silver contacts

Categories:Industry News
Author:
Origin:
Time of issue:2021-07-30 11:11
Views:

Information

Silver (Ag) can be ranked first among materials used as electrical contacts. It has the highest conductivity among metal materials, with a value of 106% IACS. The disadvantage of silver is that it is easy to vulcanize to form a black (AgS) vulcanized film, and has low hardness and is easy to wear. However, due to its excellent physical properties, silver is widely used as a low-energy circuit electrical contact. It is mainly used in the fields of small current electrical appliances such as radio, communication micro-switches, automatic control switches, thermostats, relays, calculators, and computers.

The main varieties are pure silver contacts, Ag/Cu-silver/copper composite electrical contacts, and silver/copper-nickel alloy-Ag/CuNi (8-10) composite electrical contacts.

Note: Some electrical contact connectors (such as bimetals, elastic copper alloys, etc.) cannot be fastened by riveting due to the characteristics of the material, and need to use a pulse welding method. In order to improve the welding performance, the copper-based composite material is often changed. It is a copper-nickel alloy.

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Next: Interpretation of the development trend of the low-voltage electrical appliance industry, market concentration is expected to increase

Previous: The meaning of quoting silver contacts

Next: Interpretation of the development trend of the low-voltage electrical appliance industry, market concentration is expected to increase

More information

What are the functions of silver contacts? [ 2022-04-12 ]

Are the silver contacts pure silver? [ 2021-07-30 ]

The first step is to prepare the silver extraction solution (acid). The silver withdrawal liquid specifically dissolves the silver dots. The brass matrix and the copper matrix are not damaged, and the copper is sold directly after cleaning.

How to know the quality of silver contacts is good or bad? [ 2021-07-30 ]

The silver contacts used in our switches can be judged as good or bad. The closing of the switch is achieved by the opening and closing of the silver contacts on the copper sheet to achieve the energized state. The thickness of the silver contacts directly affects the electrical conductivity. The thickness of silver coating of ordinary switches is 0.2-0.3mm, and the higher the thickness of silver coating, it can effectively reduce the generation of sparks during switch closing and prolong the service life of the switch.

The resistance of the silver contact [ 2021-07-30 ]

Silver contacts have high electrical and thermal conductivity, low and stable touch resistance, good welding and processing functions. Fine-grained silver contains a small amount of silver in the silver, which greatly refines the material arrangement grains. In the case of almost the same touch resistance, its mechanical strength and temperature resistance are higher than that of silver. Therefore, the solder resistance and arc burn resistance are better than silver.

What are the areas of silver contacts? [ 2021-07-30 ]

In the field of silver contacts, it is generally divided into pure silver contacts, silver-nickel alloy contacts, silver tin oxide contacts, silver cadmium oxide contacts, etc. However, in the switch industry, manufacturers and application companies generally know how to Choose the switch silver contact to ensure the quality and life of the switch, and many small and medium-sized enterprises have a lack of awareness of silver contacts. In the switch industry, silver cadmium oxide and silver nickel alloy contacts are more widely used. , But how much do you know about the ratio and production process?

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