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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