Aluminum solder has good wettability and joint filling properties, low melting point, and corrosion resistance. Among them, aluminum-silicon solder and zinc-aluminum solder are more commonly used. Zn-Al solder is usually combined with CsAlF4 eutectic solder to make flux core solder, which is widely used in aluminum-copper joints of transformers and aluminum-copper joints in the refrigeration industry. Al Si eutectic-based brazing filler metal is mainly used for brazing aluminum and aluminum alloys. When brazing copper, nickel is usually plated on the copper surface to reduce the influence of brittle compounds between aluminum and copper. Flame brazing, induction brazing, furnace brazing, vacuum brazing and other methods are used for brazing to obtain corrosion resistance. Better joints.

 

 ：Aluminum alloy　　：Aluminum alloy

Note: All product specifications, dimensions and ingredients support customization

 

 




Grade
performance
Base material
Preform
introduce




Element /wt.%





FirmKim





4047








Al







Si




A


Mainly used for brazing between aluminum and aluminum alloy,
Can use flame brazing, induction brazing, furnace
Brazing is performed by brazing, vacuum brazing and other methods.






GB/T 13815






BAl88Si


Remain



11~13




A





AWS A5.8



BAlSi-4





Melting temperature/℃



 




ISO 17672



Al112






575~585




 
 



FirmKim





ZnAl22








Al







Zn




A


Brazing between copper alloy and aluminum alloy, suitable for
Used in transformers, refrigeration industry and other fields.






GB/T 13815





-





22







78




A






AWS A5.8



-



Melting temperature/℃



 





ISO 17672


-





410~485




 
 



FirmKim





ZnAl2








Al







Zn




A


Brazing and brazing between copper alloys and aluminum alloys
Low temperature, especially suitable for refrigeration industry chain, etc.
field.




GB/T 13815




-






2







98




A





AWS A5.8



-




Melting temperature℃


 




ISO 17672



-





385~405