Aluminium based interlayer alloy for liquid phase diffusion weld
A liquid phase diffusion and interlayer technology, which is applied in the field of aluminum-based interlayer alloys in liquid phase diffusion welding of aluminum and aluminum alloys, can solve the problem of incomplete interaction between solder and base metal, difficulty in ensuring uniform solder wetting, low welding strength, etc. Problems, achieve the effect of reducing discontinuity, enhancing bonding force, and low welding cost
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[0011] Specific examples of the present invention are given below.
[0012] An aluminum-based intermediate layer alloy for liquid phase diffusion welding, the weight percentage of each component is 8% of silicon, 2.5% of copper, 2% of magnesium, 0.03% of gallium, 0.02% of cerium, and the balance is Al.
[0013] The aluminum-based interlayer alloy was prepared as a thin film with a thickness of 0.05 mm.
[0014] The aluminum-based intermediate layer of this composition is used in the liquid phase diffusion welding of φ60×8 aluminum-silicon alloy pipe (LF2), and the result is: when stretched, it breaks on the base material, and the tensile strength is σ b =215MPa, reaching the tensile strength of base metal (σ b ≥170MPa); bending 90° without breaking.
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