AgNi10 is a silver alloy made by adding nickel to silver.By adding a certain proportion of nickel into silver, the material has the advantages of good arc transfer property, low contact resistance, stability and excellent machining performance.A small amount of rare earth elements can be added to silver-nickel alloy to improve its properties.Silver - nickel alloys are commonly used in low - voltage electrical appliances.AgNi10 is mostly used for ac contactors below 20A.Silver nickel alloy in the small and medium-sized electric flow has good fusion welding resistance and arc erosion resistance of the dc resistance of materials under the condition of transfer capability is strong, as low silver based contact alloy type, the main applied materials, widely used in the thermostat, circuit breaker, protector, relay, ac contactor, etc, used for various kind of composite rivets, composite rivets, composite strip, the contact surface of composite profiled strip or layer.
At present, there are more than 600 enterprises engaged in the production of low-voltage contact products in China, among which only 25 enterprises have the production capacity of contact alloy raw materials, accounting for only 8%.Low voltage electric contact material is mainly used in industrial electrical appliances, household appliances and automobile appliances three applications, driven by the three major industries, as China's 2025 national policy implementation, and home appliances, automobile an increasing demand in recent years, low voltage electrical contact materials market will continue to usher in a new growth point, so the market for AgNi10 (silver and nickel alloy material demand is also increasing.
Silver nickel composite materials (AgNi) low and stable contact resistance, easy processing, silver has good conductive and heat conduction performance, nickel has good erosion resistance, nickel and silver control in small capacity (AgNi) alloy material can be widely used in electrical appliances, is the most commonly used contactor, relay electrical contact materials, but the material down in the big electric welding resistance is poor, in order to improve the penetration resistance of the material, the researchers usually add rare earth materials, Ni grain refinement of the material at the same time, a lot of research and practical application show that:In the alloy material, the finer Ni particles are more conducive to improving the anti-fusion welding performance, and the addition of rare earth is also conducive to improving the anti-fusion welding performance.CN 10113966A discloses "a method for the preparation of Silver-Nickel composite material". The dispersed silver-nickel composite powder is obtained by the decomposition and reduction of Ag2NiO2, and then the micron grade silver-nickel alloy is obtained through sintering, which improves the material performance. However, Na ions are inevitably introduced in the preparation process.
The rated heating current of JZ14 intermediate relay of Silver-Nickel 10 contact material is 5 amps. The contact system is of bridge double-break structure, the static contact is of plane rivet type, and the moving contact is of spherical rivet type. Riveting process is adopted.
the technology of silver and nickel spraying powder and mechanical alloying has been developed.A small amount of rare earth elements can be added to silver-nickel alloy to improve its properties.Silver - nickel alloys are commonly used in low - voltage electrical appliances.AgNi10 is mainly used for ac contactor below 20A;AgNi(15 ~ 40) can withstand greater loads.As a contact material, silver-nickel alloy is widely used in all kinds of switches, controllers, voltage regulators, circuit breakers, automotive electrical appliances, magnetic starters and so on.
The addition of a small amount of nickel can refine the grain, improve the hardness, wear resistance and burn resistance of silver, and slightly increase the contact resistance.Because silver and nickel are not mutually soluble, it is prepared by powder metallurgy, and the general nickel content is 5% ~ 40%.Silver-nickel alloy electric contact material has good electrical and thermal conductivity, strong resistance to metal transfer, arc burning, electrical erosion and other capabilities, good wear resistance, high strength, and good ductility and cutting ability, contact resistance is higher than silver, the physical properties of silver-nickel alloy are shown in the table.In the past, silver and nickel powders were prepared by chemical co-deposition method, and then silver and nickel coated powders were prepared by chemical method.Chemical powder production process is generally more complex, the cost is high, with the development of powder production technology, in recent years, the use of mechanical atomization method to get very fine powder, remix, pressing, sintering, extrusion, the same reliable performance of silver-nickel alloy.
Silver-nickel contacts are better than pure silver.It retains the advantages of low resistivity, good electrical conductivity and no arc, and has the advantages of high temperature resistance, no wear and oxidation resistance of the alloy.
The silver-Nickel alloy electric contact material is made by advanced sintering and extrusion technology, and the nickel particles are uniformly distributed as fibers.The contact resistance of the silver-Nickel alloy electric contact is low and stable, with good conductivity and thermal conductivity, small burning loss and small but uniform electrical wear. When the electric contact is on and off under DC, the material transfer of the electric contact is less than that of pure silver contact, which is especially suitable for on and off use in narrow shell.However, due to oxides, the contact resistance of ag-Ni alloy contact increases when it is on and off, and it is sensitive to sulfur, and the anti-fusion welding performance of large current is poor.Silver - nickel contacts are usually paired with silver - graphite contacts.Silver - Nickel alloy material contains trace of special additives, which obviously improve the welding resistance and electrical wear resistance.It is mainly used for high-load contacts in narrow housing and contact parts for DIRECT current.Low voltage, low current level contactor, instrument switch, light switch, relay, temperature controller and washing machine timer, etc
Hot Tags: environment-friendly materials silver-nickel alloys, China environment-friendly materials silver-nickel alloys manufacturers, suppliers, Electrical Contact Material, Magnetic Latching Relay Contacts, Rivet Compound Contacts
