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      1. Product solutions /
        Powder metallurgy contact product description

        Application range

        Mainly used for circuit breakers, especially universal circuit breakers. And for motor protection switches, leakage circuit breakers, AC relays.

        main products

        AgC(3-5), AgW系列, AgWC系列, AgWC??C?, AgNi40,AgNiC系列, CuW系列,AgZnO , AgSnO2  . 


        product data Applications

        Silver zinc oxide(AgZnO)



        Overview: Silver zinc oxide has better resistance to soldering and burnout, and its contact resistance is higher than that of silver cadmium oxide. Silver zinc oxide can be produced by a pre-oxidation-sintering-extrusion, a mixing-molding-sintering process, and an internal oxidation process. Silver zinc oxide is an environmentally friendly material.

        Applications: Mainly used for circuit breakers, especially universal circuit breakers. And for motor protection switches, leakage circuit breakers, AC relays.


        Microstructure

        1.png 1.png 1.png

        2#AgZnO         200x  3#AgZnO      200x   6#AgZnO       200x

        Material properties

        Sheet

        1#AgZnO

        2#AgZnO

        3#AgZnO

        4#AgZnO

        5#AgZnO

        6#AgZnO

        ZnO content (wt.%)

        8±1

        10±1

        10±1

        8±1

        8±1

        10±1

        Density (g/cm3)

        ≥9.70

        ≥9.50

        ≥9.55

        ≥9.70

        ≥9.50

        ≥9.40

        Resistivity (μΩ·cm)

        ≤2.50

        ≤2.50

        ≤3.50

        ≤3.40

        ≤2.60

        ≤2.70

        Hardness

        ≥80

        ≥80

        ≥74

        ≥69

        ≥63

        ≥68

        Manufacturing process

        Pre-oxidation-sintering-extrusion

        Internal oxidation

        Mixed-molding-sintering


        Wire

        1#AgZnO

        2#AgZnO

        ZnO content (wt.%)

        8±1

        10±1

        Density(g/cm3)

        ≥9.65

        ≥9.60

          Resistivity (μΩ·cm)

        ≤2.25

        ≤2.35

        Hardness

        ≥80

        ≥85

        tensile strength (MPa)

        285~350

        285~350

        Extension rate%

        15-25

        12-20

          Manufacturing process

        Pre-oxidation-sintering-extrusion


        product type


        1#AgZnO

        2#AgZnO

        3#AgZnO

        4#AgZnO

        5#AgZnO

        6#AgZnO

         Wire          



             Strip          





        Touch piece    

         Composite sheet    





           Rivet    




        AgSnO2



        Overview: Silver tin oxide is an environmentally friendly electrical contact material with good resistance to burning and fusion welding. It has strong resistance to material transfer in DC switching circuits and is widely used. Mainly include: alloy internal oxidation method, pre-oxidation method, powder metallurgy method, chemical coating method and other manufacturing processes.

        Applications: Widely used in all types of contactors, relays, circuit breakers and switches.


        Microstructure

        1.png 1.png 1.png 1.png

        1#AgSnO2       200X   8#AgSnO2       200X    9#AgSnO2         200X  16#AgSnO2     200X 

        1.png 1.png 1.png 1.png

        16#AgSnO2    200X   37#AgSnO2      200X   40#AgSnO2       200X    88#AgSnO2     200X 

        Material properties

        Sheet

        1#AgSnO2

        8#AgSnO2

        12#AgSnO2

        37#AgSnO2

        40#AgSnO2

        SnO2 content(wt.%)

        10±1

        12±1

        12±1

        12±1

        14±1

        Density(g/cm3)

        ≥9.70

        ≥9.60

        ≥9.50

        ≥9.50

        ≥9.40

        Resistivity(μΩ·cm)

        ≤2.40

        ≤2.80

        ≤2.50

        ≤2.80

        ≤2.90

        Hardness

        ≥70

        ≥75

        ≥75

        ≥75

        ≥80

        Manufacturing process

        Pre-oxidation-sintering-extrusion

        Mixing powder-sintering-extruding



        Wire

        1#AgSnO2

        9#AgSnO2

        91#AgSnO2

        23#AgSnO2

        13#AgSnO2

        SnO2 content(wt.%)

        10±1

        10±1

        12±1

        12±1

        15±1

        Density (g/cm3)

        9.90

        9.95

        9.85

        ≥9.85

        9.5

        Resistivity (μΩ·cm)

        2.15

        2.30

        2.30

        ≤2.30

        2.18

        Hardness

        85

        95

        70

        ≥75

        85

        tensile strength(MPa)

        295-350

        290-385

        230-350

        230-285

        250-330

        Extension rate%

        15-25

        15-25

        15-25

        18-30

        15-25

        Manufacturing process

        Pre-oxidation-sintering-extrusion

        Chemical coating

        Mixing powder-sintering-extruding


         product type


        AgSnO2

        AgSnO2In2O3

        SnO2 content (wt.%)

        8±1

        10±1

        12±1

        15±1

        6±1

        8 ±1

        9±1

        Wire      


        Strip      


        Touch piece      

        Composite sheet     




              Rivet        




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