Copper aluminum flux cored wire is a composite brazing material composed of zinc-aluminum alloy on the outer skin and white fluoride flux on the inner layer. The white flux is non-hygroscopic, non-corrosive, and does not need to be cleaned after welding. It is a high-performance environmentally friendly welding material designed and produced for the electrical refrigeration industry. It can be welded between copper and aluminum, between copper bus and aluminum foil, and between aluminum and aluminum....
1.The Introduction of Copper aluminum flux cored wire
Copper aluminum flux cored wire is a composite brazing material composed of zinc-aluminum alloy on the outer skin and white fluoride flux on the inner layer. The white flux is non-hygroscopic, non-corrosive, and does not need to be cleaned after welding. It is a high-performance environmentally friendly welding material designed and produced for the electrical refrigeration industry. It can be welded between copper and aluminum, between copper bus and aluminum foil, and between aluminum and aluminum.
Because the center of the welding wire contains flux, it is called flux-cored welding wire, which eliminates the need to dip solder powder during welding and improves production efficiency.
2 The Specifications of Copper aluminum flux cored wire
1) Model: CH-FC0215
A, chemical composition: metal: Zn, Al, others; flux: Cs-Al-F
B, the amount of solder powder (wt%): 10～20
C, wire diameter (mm): φ1.6 φ1.8 φ2.0 φ2.2
D, the inner diameter of the welding ring ID (mm): 6.0～20.0
E, brazing temperature (℃): 420～480
F, Remarks: Standard type, used for brazing of copper and aluminum, aluminum and aluminum
2) Model: CH-FC0215A
A, chemical composition: metal: Zn, Al, others; flux: Cs-Al-F
B, the amount of solder powder (wt%): 10～20
C, wire diameter (mm): φ1.6 φ1.8 φ2.0 φ2.2
D, the inner diameter of the welding ring ID (mm): 6.0～20.0
E, brazing temperature (℃): 420～480
F, Remarks: The temperature of the flux is lower than FC0215, which has higher activity and fluidity.
3) Model: CH-FC22B
A, chemical composition: metal: Zn, Al, others; flux: Cs-Al-F
B, the amount of solder powder (wt%): 10～20
C, wire diameter (mm): φ1.6 φ1.8 φ2.0 φ2.2
D, the inner diameter of the welding ring ID (mm): 6.0～20.0
E, brazing temperature (℃): 420～480
F, Remarks: It can be applied to brazing copper and aluminum, aluminum and aluminum, with higher strength and conductivity.
4) Model: CH-FC20B
A, chemical composition: metal: Zn, Al, others; flux: Cs-Al-F
B, the amount of solder powder (wt%): 10～20
C, wire diameter (mm): φ1.6 φ1.8 φ2.0 φ2.2
D, the inner diameter of the welding ring ID (mm): 6.0～20.0
E, brazing temperature (℃): 420～480
F, Remarks: The fluidity is lower than FC22B, suitable for brazing welds with larger gaps.
5): The Special specifications can be customized according to customer requirements
3.The Product form and packaging method of Copper aluminum flux cored wire
There are three main types of Copper aluminum flux cored wire: disc, strip and ring.
1) Product form
Coiled wire, welding ring, straight bar,
2) Packing method
Reel wire: 0.5kg/reel 1kg/reel 2kg/reel 5kg/reel
Straight bar: 1kg/bundle, length 500mm 2kg/box
Welding ring: 0.5kg/pack 1kg/pack 1000 pcs/pack 2000 pcs/pack
4.The Performance advantages of Copper aluminum flux cored wire:
a,The fluidity of Copper aluminum flux cored wire solder is moderate, and it has good welding strength and electrical conductivity. It is an ideal material for copper-aluminum welding.
b,The solder composition of this product complies with EU RoHS green standards. The powder in the center of the welding wire is a flux that affects the fluidity of the solder in the copper-aluminum base metal. It is a eutectic molecular molten salt composed of a variety of fluorides. It is a non-corrosive flux with stable properties and does not absorb water and oxidize in the air. Can be stored for a long time.
c,The feature of this product is that it does not require high technical requirements to achieve the purpose of welding, does not require solder powder (which has been made into the welding wire), and easily solves the technical problems of repairing copper-aluminum brazing and aluminum-aluminum brazing.
d,This product can also be used for welding aluminum and aluminum. Before welding, please clean the base material, remove oil and rust on the surface, and then you can weld. It is very convenient and the strength can meet the requirements of transformers, refrigerators, air conditioners and other industries.
5.The Usage of Copper aluminum flux cored wire
Copper aluminum flux cored wire is mainly used for flame brazing, high frequency induction brazing and furnace brazing of copper and aluminum alloys, brass and aluminum alloys, aluminum alloys and aluminum alloys. Specifically used in the welding of copper and aluminum tubes, copper bars and aluminum bars, copper bars and aluminum foils, copper wires and aluminum wires in transformers, reactors, radiators, condenser tubes, evaporators, motors, batteries and other products.
