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    Copper solder paste Home > Product > Copper base welding materials > Copper solder paste

    Copper solder paste

    The author:    Release time : 2017-01-04 15:25:15    1453time to browse

    Cemented carbide tools used solder variety, dosage is one of the largest copper metallurgical and silver based solder. Pure copper brazing alloy and copper base filler metals is the most commonly used solder when brazing carbide. Pure copper solder joint high plasticity, but in working temperature higher than 320 ℃, the joint strength rapidly reduced, therefore, not suitable for working under high temperature. Melting temperature is lower than the purity of copper base filler metals are mostly base copper zinc alloy, adding manganese nickel elements such as improve the weld strength, at 320 ℃, has higher strength.

    Silver based solder, comprehensive performance is better than that of copper base filler metals are also often join manganese nickel improve the wettability of solder, improve the weld strength and joint working temperature. Silver based solder brazing temperature is usually lower than copper base filler metals.

    In operating temperature above 500, carbide brazing joint strength to demand higher, can use cobalt nickel metallurgical and metallurgical.

    Solder composition

    The melting range(℃)

    Recommend the brazing temperature(℃)

    EBN110

    CDA110

    BCu-1a

    Cu>99.7

    1083

    1093-1149

    CuZn40

    Cu60 Zn40

    888-899

    910-954

    Cu48ZnNi

    Cu48 Zn42 Ni10

    921-935

    938-982

    CuMn10Co3

    Cu87 Mn10 Co3

    960-1030

    1010-1093

    CuMn12Ni2

    Cu86 Mn12 Ni2

    970-990

    1000-1093

    CuZnMn4Co

    Cu60 Zn34.8 Mn4 Co1.2

    890-930

    935-1040

    CuZnMn4Ni6

    Cu55 Zn35 Mn4 Ni6

    880-920

    925-1040

    EBN495

    Ag49 Cu16 Zn23 Mn7.5 Ni4.5

    680-699

    699-830

    BNi2

    Ni82.9 Cr7 Fe3 Si4.1 B3.1

    971-999

    1010-1177

    BCo-1

    Ni17 Cr19 Co51 Fe1 Si8 W4

    1120-1149

    1149-1232


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