Aluminum alloy welding wire for automobile fuel tank and preparation method of aluminum alloy welding wire
A technology of aluminum alloy welding wire and automobile fuel tank, which is applied in the direction of welding equipment, metal processing equipment, welding medium, etc., and can solve the problems of damage to the weld, impact resistance of the weld of the fuel tank, low fatigue resistance, oil leakage, etc.
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[0014] Example 1
[0015] An aluminum alloy welding wire for automobile fuel tanks. Its raw materials include Mg: 6.5%, Mn: 0.65%, Ti: 0.17%, Be: 0.003%, Fe: 0.3%, B: 0.045%, and Cr: 0.235% by weight. , Si: 0.35%, Zr: 0.2%, V: 0.175%, Sc: 0.25%, Cu≤0.1%, Zn≤0.2%, individual content of other impurity elements≤0.05%, total content of other impurity elements≤0.1%, remaining The amount is Al.
[0016] The method for preparing aluminum alloy welding wire for automobile fuel tanks includes the following steps: melting the aluminum ingot, adding the remaining raw materials, smelting, refining, and casting to obtain a round ingot meeting the above composition range; homogenizing, extruding, and Annealing and drawing treatments obtain aluminum alloy welding wire for automobile fuel tank.
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[0017] Example 2
[0018] An aluminum alloy welding wire for automobile fuel tanks. Its raw materials include Mg: 6.3%, Mn: 0.8%, Ti: 0.16%, Be: 0.005%, Fe: 0.2%, B: 0.08%, and Cr: 0.22% by weight. , Si: 0.4%, Zr: 0.16%, V: 0.2%, Sc: 0.2%, Cu≤0.1%, Zn≤0.2%, single content of other impurity elements≤0.05%, total content of other impurity elements≤0.1%, remaining The amount is Al.
[0019] The method for preparing aluminum alloy welding wire for automobile fuel tanks includes the following steps: melting the aluminum ingot, adding the remaining raw materials, smelting, refining, and casting to obtain a round ingot meeting the above composition range; homogenizing, extruding, and Annealing and drawing treatments obtain aluminum alloy welding wire for automobile fuel tank, wherein the homogenization temperature is 475℃, homogenization temperature is 24h, extrusion temperature is 440℃, extrusion ratio is 40, annealing temperature is 460℃, annealing time For 2h.
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[0020] Example 3
[0021] An aluminum alloy welding wire for automobile fuel tanks. Its raw materials include Mg: 6.7%, Mn: 0.5%, Ti: 0.18%, Be: 0.0001%, Fe: 0.4%, B: 0.01%, Cr: 0.25% by weight percentage. , Si: 0.3%, Zr: 0.25%, V: 0.15%, Sc: 0.3%, Cu≤0.1%, Zn≤0.2%, individual content of other impurity elements≤0.05%, total content of other impurity elements≤0.1%, remaining The amount is Al.
[0022] The method for preparing aluminum alloy welding wire for automobile fuel tanks includes the following steps: melting the aluminum ingot, adding the remaining raw materials, smelting, refining, and casting to obtain a round ingot meeting the above composition range; homogenizing, extruding, and Annealing and drawing treatments obtain aluminum alloy welding wire for automobile fuel tank. The homogenization temperature is 455℃, the homogenization temperature is 36h, the extrusion temperature is 430℃, the extrusion ratio is 45, the annealing temperature is 440℃, and the annealing time Fo...
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