A kind of aluminum brazing flux for aluminum alloy honeycomb plate brazing and preparation method thereof
A honeycomb panel and aluminum alloy technology, which is applied in welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of poor brazing performance of aluminum alloy honeycomb panels and the reduction of flux activity temperature, so as to improve flux activity and reduce Flux viscosity, low cost effect
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Embodiment 1
[0028] An aluminum flux for aluminum alloy honeycomb plate brazing, made of 83.5% by mass percentage of binary flux matrix and 16.5% by mass of active material, said binary flux matrix is KBe 2 f 5 -KAIF 4 , and the molar ratio of the two is KBe 2 f 5 :KAlF 4 =50:50; the active substance is KHF 2 .
[0029] The preparation method of aluminum flux for aluminum alloy honeycomb plate brazing comprises the following steps:
[0030] 1) Weigh KBe according to the above ratio 2 f 5 and KAlF 4 Binary flux matrix, mixed evenly and placed in a platinum crucible, then placed the platinum crucible in a muffle furnace to raise the temperature to 480°C and keep it warm for 30 minutes to form a molten flux liquid;
[0031] 2) Weigh the active material according to the above ratio and pour it into the molten flux solution in step 1), keep the temperature at 480°C and stir it thoroughly, then stand still for 10 minutes, and then cool naturally to form a flux glass body;
[0032]3) ...
Embodiment 2
[0035] An aluminum flux for aluminum alloy honeycomb plate brazing, made of 89.5% by mass percentage of binary flux matrix and 10.5% by mass of active material, said binary flux matrix is KBe 2 f 5 -KAIF 4 , and the molar ratio of the two is KBe 2 f 5 :KAlF 4 =70:30; the active substance is KHF 2 .
[0036] The preparation method of the aluminum flux for aluminum alloy honeycomb plate brazing comprises the following steps:
[0037] 1) Weigh KBe according to the above ratio 2 f 5 and KAlF 4 Binary flux matrix, mixed evenly and placed in a platinum crucible, then put the platinum crucible in a muffle furnace to raise the temperature to 500°C and keep it warm for 30 minutes to form a molten flux liquid;
[0038] 2) Weigh the active material according to the above ratio and pour it into the molten flux solution in step 1), keep the temperature at 500°C and stir it fully, then stand still for 15 minutes, and then cool naturally to form a flux glass body;
[0039] 3) Cru...
Embodiment 3
[0042] An aluminum flux for aluminum alloy honeycomb plate brazing, made of 86.5% by mass percentage of binary flux matrix and 13.5% by mass of active material, said binary flux matrix is KBe 2 f 5 -KAIF 4 , and the molar ratio of the two is KBe 2 f 5 :KAlF 4 =60:40; the active substance is KHF 2 .
[0043] The preparation method of the aluminum flux for aluminum alloy honeycomb plate brazing comprises the following steps:
[0044] 1) Weigh KBe according to the above ratio 2 f 5 and KAlF 4 Binary flux matrix, mixed evenly and placed in a platinum crucible, then placed the platinum crucible in a muffle furnace to raise the temperature to 490°C and keep it warm for 30 minutes to form a molten flux liquid;
[0045] 2) Weigh the active material according to the above ratio and pour it into the molten flux solution in step 1), keep the temperature at 490°C and stir it fully, then stand still for 13 minutes, and then cool naturally to form a flux glass body;
[0046] 3) ...
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