Brass brazing alloy
A brass brazing filler metal and alloy technology, applied in metal processing equipment, welding/cutting media/materials, welding media, etc., can solve the problems of lower strength index, copper annealing, lower reliability of brazing joints, etc., so as to improve reliability performance, low cost
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Embodiment 1
[0027] A brass solder alloy, its alloy formula is Cu: 60%, Sn: 1.5%, Ag: 5%, In: 1.0%, Ge: 0.05%, Zn: balance.
[0028] The preparation steps of above-mentioned brass solder alloy are as follows:
[0029] 1) Prepare a total of 5000 grams of each material according to the above formula;
[0030] 2) Put Cu into an induction furnace and heat it to above 1100°C and melt it;
[0031] 3) Add Zn and stir fully, while rapidly reducing the temperature of the molten metal to 920°C;
[0032] 4) After the molten metal is uniform, add Ag and stir thoroughly;
[0033] 5) Add Sn, In and Ge and stir evenly, then cast;
[0034] 6) The brazing alloy is obtained by extruding and wire drawing according to the conventional brazing filler metal processing method.
Embodiment 2
[0036] The difference between this embodiment and Example 1 is to adopt the following formula:
[0037] Cu: 58%, Sn: 1.0%, Ag: 2%, Ge: 0.1%, Zn: balance.
Embodiment 3
[0039] The difference between this embodiment and Example 1 is to adopt the following formula:
[0040] Cu: 58%, Sn: 2.0%, Ag: 4%, In: 3%, Ge: 0.1%, Zn: balance.
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