Diffusion bonding agent for brazing of aluminum alloy honeycomb plate and diffusion brazing method
A technology of diffusion connection and brazing method, which is applied in the direction of welding medium, welding equipment, welding equipment, etc., can solve the problems of non-corrosive properties of materials, reduction of joint strength, intergranular corrosion of solder joints, etc., and achieve the suppression of penetration and diffusion depth , high density, good metallurgical bonding effect
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Embodiment 1
[0023] A diffusion bonding agent for aluminum alloy honeycomb plate brazing, the mass percentage of each component is: 10% of Si powder with a purity of 99% and a particle size range of 300-400 mesh, and 90% of Ga-In eutectic liquid alloy . Add Si powder into Ga-In eutectic liquid alloy and stir evenly to make a paste-like diffusion bonding agent.
[0024] The preparation method of Ga-In eutectic liquid alloy: prepare Ga and In according to the eutectic composition, slowly add In to Ga in the plastic cup, Ga and In react, and prepare Ga-In eutectic liquid alloy.
Embodiment 2
[0026] A diffusion bonding agent for aluminum alloy honeycomb plate brazing, the mass percentage of each component is: 12% of Si powder with a purity of 99% and a particle size range of 300-400 mesh, and 88% of Ga-In eutectic liquid alloy . Add Si powder into Ga-In eutectic liquid alloy and stir evenly to make a paste-like diffusion bonding agent.
Embodiment 3
[0028] A diffusion bonding agent for aluminum alloy honeycomb plate brazing, the mass percentage of each component is: 15% of Si powder with a purity of 99% and a particle size range of 300-400 mesh, and 85% of Ga-In eutectic liquid alloy . Add Si powder into Ga-In eutectic liquid alloy and stir evenly to make a paste-like diffusion bonding agent.
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