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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    1535time 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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