Copper based multi-element alloy manual electrodes with low content silver
A multi-element alloy and brazing material technology, applied in the direction of welding/cutting media/materials, welding media, welding equipment, etc., can solve the problems of low wettability, high silver content, low mechanical strength, etc., to improve wettability, The effect of low cost and high mechanical strength
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Embodiment 1
[0013] According to the alloy composition according to the nominal composition, the medium frequency induction furnace is used to melt into an ingot. The weight percentage of the alloy is: Mn: 11%, Ni: 8%, Ag: 3%, Si: 0.3%, B: 0.06%, and the balance For copper and unavoidable impurities. The prepared alloy is processed into a strip with a thickness of 0.1mm, and the stainless steel base metal is brazed with a conventional method. It has good wettability, good flow, and a spreading area of 300mm on the base metal. 2 , the maximum filling gap of brazing material is 0.2mm, σ b Up to 240MPa.
Embodiment 2
[0015] According to the alloy composition according to the nominal composition, the medium frequency induction furnace is used to melt into an ingot. The weight percentage of the alloy is: Mn: 15%, Ni: 12%, Ag: 7%, Si: 1%, B: 0.3%, and the balance For copper and unavoidable impurities. The obtained alloy is processed into a wire material with a thickness of Φ1mm, and the stainless steel base material is brazed with conventional methods. It has good wettability, good flowability, and a spreading area of 310mm on the base material. 2 , the brazing filler gap is 0.2mm, σ b Up to 238MPa.
Embodiment 3
[0017] According to the alloy composition according to the nominal composition, the medium frequency induction furnace is used to melt into an ingot. The weight percentage of the alloy is: Mn: 21%, Ni: 18%, Ag: 9%, Si: 1.8%, B: 0.7%, and the balance For copper and unavoidable impurities. The prepared alloy is processed into a narrow strip with a specification of 2mm×0.2mm, and the stainless steel base metal is brazed with conventional methods. It has good wettability, good flow, and a spreading area of 305mm on the base metal. 2 , the brazing filler gap is 0.2mm, σ b Up to 242MPa.
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