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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    788time 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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