B-and-Mn-containing zinc alloy with zinc-pot corrosion resistance for hot-dip galvanizing
A hot-dip galvanizing and corrosion-resistant technology, which is applied in the field of alloys, can solve problems such as high hot-dipping temperature, long hot-dipping time, and zinc pot deformation, and achieve short hot-dipping time, improved corrosion resistance, and improved corrosion resistance Effect
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Embodiment 1
[0018] A zinc alloy containing B and Mn for hot-dip galvanizing that exhibits corrosion resistance to zinc pots when used at 360-450 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 0.3wt.%, Co: 0.2wt.%, Bi: 1.5wt.%, Mn: 0.8wt.%, Sn: 2.0wt.%, B: 0.4wt .%, the balance is zinc. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heating to 500-600 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy The liquid is kept at 500-600 degrees for 10 minutes and then cast into the equipment at the same level as the hot top for semi-continuous casting into the required round ingot. The ingot moves down at a speed of 5-8m / min. The ingot can be used as hot-dip galvanizing raw material for subsequent hot-dip galvanizing treatment to protect steel wires. The work...
Embodiment 2
[0021] A zinc alloy containing B and Mn for hot-dip galvanizing that exhibits corrosion resistance to zinc pots when used at 360-450 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 0.4wt.%, Co: 0.2wt.%, Bi: 1.8wt.%, Mn: 0.8wt.%, Sn: 2.4wt.%, B: 0.4wt .%, the balance is zinc. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heating to 500-600 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy The liquid is kept at 500-600 degrees for 10 minutes and then cast into the equipment at the same level as the hot top for semi-continuous casting into the required round ingot. The ingot moves down at a speed of 5-8m / min. The ingot can be used as hot-dip galvanizing raw material for subsequent hot-dip galvanizing treatment to protect steel wires. The work...
Embodiment 3
[0024] A zinc alloy containing B and Mn for hot-dip galvanizing that exhibits corrosion resistance to zinc pots when used at 360-450 degrees. In terms of weight percentage, the chemical composition of the alloy is: Ca: 0.8wt.%, Co: 0.3wt.%, Bi: 2.5wt.%, Mn: 1.0wt.%, Sn: 2.6wt.%, B: 0.5wt .%, the balance is zinc. The preparation method of the alloy: add the above-mentioned raw materials into the atmosphere-protected induction furnace, and use a silicon carbide crucible; induction heating to 500-600 degrees to form an alloy solution, and use the electromagnetic stirring effect to fully stir for about 10 minutes; put the alloy The liquid is kept at 500-600 degrees for 10 minutes and then cast into the equipment at the same level as the hot top for semi-continuous casting into the required round ingot. The ingot moves down at a speed of 5-8m / min. The ingot can be used as hot-dip galvanizing raw material for subsequent hot-dip galvanizing treatment to protect steel wires. The work...
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