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POWDER METAL CONTACTS

Short Description:

Deliver punctually, quailty assurance ,Independent design of mould, timely feedback,Instead of customer testing,Analysis of priduct composition.


  • FOB Price: US $0.05 - 5.00/ Piece
  • Min.Order Quantity: 100 Piece/Pieces
  • Supply Ability: 10000 Piece/Pieces per Month
  • Product Detail

    Product Tags

    Application:
    Contactors, circuit breakers, thermostats, intelligent switches, etc
    The Material:
    AgC,AgW,AgWC,AgWCC,AgNiC,CuW

    AgC

    Microstructure

    1

    General Description

    AgC contact materials show a very high resistance against contact welding and low contact resistance. Resistance against welding increases with increasing graphite content. AgC materials have self-lubricating behavior when used as sliding contacts.

    Application Scope

    Mainly used in protective switches such as MCBs, MCCBs, residual current protective switches, or motor protective switches. Application is normally in asymmetric match with AgNi,AgW, AgWC or Cu.

    Material Properties

    AgC AgC AgC AgC AgC AgC
    C Content(wt.%) 3±0.5 4±0.5 5±0.5 3±0.5 3.8±0.5 4±0.5
    Density (g/cnre) ≥9.10 ≥8.9 ≥8.60 ≥9.10 ≥9.00 ≥8.9
    Elec.Resistivity (.10•cm) ≤2.10 ≤2.20 ≤2.30 ≤2.10 ≤2.20 ≤2.20
    Hardness HV ≥42 ≥42 ≥42 ≥42 ≥42 ≥42
    Manufacturing process

    Sintering-Extruding

    Product Types

    1600736807(1)

    AgW

    Microstructure

    1593741768(1)

    General Description

    Contacts made of AgW show a high anti-welding resistance and a high resistance to arc erosion due to high melting point and high hardness of W, they also have a good electrical and thermal conductivity.

    Application Scope

    AgW materials are mainly used in low voltage MCCB and ACB and protective switches.

    Material Properties

      AgW AgW AgW AgW AgW AgW
    Ag Content(wt.%) 50±2 45±2 40±2 35±2 30±2 25±2
    Density (g/cm3) ≥13.15 ≥13.55 ≥14.00 ≥14.50 ≥14.90 ≥15.40
    EIec.Resistivity (1.10•cm) ≤3.00 ≤3.20 ≤3.40 ≤3.60 ≤3.80 ≤4.20
    Hardness HV ≥100 ≥110 ≥120 ≥130 ≥145 ≥160
    Manufacturing process Infiltration

     

    Product Types

    1600747079(1)

    AgWC

    Microstructure

    1593742074(1)

    General Description

    The AgWC contact materials containing the refractory component WC have high hardness and resistance to mechanical wear, a low tendency towards contact welding, and a relatively stable contact resistance in service. AgWC contacts are produced by powder metallurgy infiltration.

    Application Scope

    Mainly used in heavy-duty switching devices, such as circuit breakers. residual current circuit breakers. In many cases they are used in asymmetric match with AgC

    Material Properties

      AgWC AgWC AgWC AgWC
    Ag Content(wt.%) 65±2 60±2 50±2 35±2
    Density (g/cm3) ≥11.50 ≥11.80 ≥12.20 ≥13.00
    Elec.Resistivity (1.10•cm) ≤3.30 .A.50 4.50 5.20
    Hardness HV ≥100 ≥125 ≥135 ≥155
    Manufacturing process Infiltration

     

    Product Types

    1600761493(1)

    AgWCC

    Microstructure

    1593742282(1)

    General Description

    Due to high Ag content , AgWCC contacts have low contact resistance. They have very high anti-welding properties due to containing tungsten carbide and graphite with high melting point. AgWCC contacts are manufactured by sintering.

    Application Scope

    Mainly used in heavy-duty switching devices, such as circuit breakers. residual current circuit breakers. In many cases they are used in asymmetric match with AgNi, AgW or AgWC.

    Material Properties

      AgWCC AgWCC AgWCC AgWCC
    Ag Content(wt.%) 85±1 75±1 79±1 74.5±1
    Density (g/cm3) ≥9.40 ≥10.25 ≥8.80 ≥10.50
    Elec.Resistivity (u0•cnn) ≤3.40 ≤3.40 ≤3.80 ≤3.45
    Hardness HV ≥50 ≥80 ≥60 ≥75
    Manufacturing process Mixing-Compacting-Sintering

    Product Types

    1600761891(1)

    AgNiC

    Microstructure

    1593741188(1)

    General Description

    AgNiC contacts combine the advantages ofAgNi and AgC contacts. They have good resistance to electrical erosion and anti-welding properties.

    Application Scope

    AgNiC contacts are mainly used in MCCB, ACB. 

    Material Properties

      AgNiC AgNiC 3AgNiC
    Ag Content(wt.%) 67±1 73±1 94±1
    Density (g/cm3) ≥8.70 ≥9.10 ≥8.50
    Elec.Resistivity (.10•cm) ≤4.50 ≤3.50 ≤3.50
    Hardness HV ≥50 ≥60 ≥30
    Manufacturing process   Mixing-Compacting-Sintering

    Product Types

    1600745478(1)

    CuW

    Microstructure

    1593742492(1)

    General Description

    CuW contact materials have excellent resistsnce against arc erosion and anti-welding properties up to very high curret. CuW contacts are produced in a great variety of shapes by means of powder metallurgy (pressing / sintering or infiltration). The tungsten content is 50%-80%.

    Application Scope

    CuW contacts are mainly used in medium and high voltage switchgears. Typical applications are in high voltage circuit breakers, load switches, transformer switches tap changers and low voltage arcing contacts.
    In addition, CuW materials are widely used as electrodes, primarily for welding.

    Material Properties

      CuW CuW CuW
    Cu Content (wt.%) 50±2 40±2 30±2
    Density (g/cm3) ≥11.85 ≥12.75 ≥13.80
    EIec.Resistivity (p0 cm) ≤3.20 ≤3.70 ≤4.10
    Hardness HV ≥115 ≥140 ≥175
    Manufacturing process Infiltration

     

    Product Types

    1600762141(1)

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