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A production method and hot-dip plating technology, which are used in the field of alloys for hot-dip plating and production
Inactive Publication Date: 2013-03-27
HULUDAO ZINC IND CO LTD
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Problems solved by technology
This method solves the technical problem of hot-dip alloy uniformity by fusing raw materials step by step
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specific Embodiment 1
[0014] Put 69.5Kg of 1# zinc ingot, 0.98Kg of aluminum strip, and 0.064Kg of nickel plate into the furnace, and the temperature rises to 700°C. After the zinc, aluminum and nickel are melted, add 0.045Kg of powder block antimony, 0.076Kg of rare earth, and stir with a carbon rod for detection The melting of the antimony blocks in the furnace. After confirming that all the metals in the furnace are completely melted, the furnace temperature drops to about 450°C. Stir with a carbon rod to take samples for laboratory analysis. After 40 minutes of constant temperature, the furnace is cast into ingots.
[0015] Laboratory analysis results: aluminum 1.41%, nickel 0.10%, antimony 0.062%, La 0.033%, Ce 0.069%.
specific Embodiment 2
[0016] Put 73.8Kg of 1# zinc ingot, 1.05Kg of aluminum strip, and 0.061Kg of nickel plate into the furnace, and the temperature rises to 680°C. After the zinc, aluminum and nickel are melted, add 0.049Kg of powder block antimony, 0.075Kg of rare earth, and stir with a carbon rod for detection The melting of the antimony blocks in the furnace. After confirming that all the metals in the furnace are completely melted, the furnace temperature drops to about 500°C. Stir with a carbon rod to take samples for laboratory analysis. After constant temperature for 30 minutes, cast ingots out of the furnace.
[0017] Laboratory analysis results: aluminum 1.40%, nickel 0.08%, antimony 0.065%, La 0.033%, Ce 0.069%.
[0018] The alloy advantage that the inventive method makes is:
[0019] The method is simple in process, easy to operate, short in furnace time and low in production cost. Adopting the hot-dip alloy of the present invention can improve the corrosion resistance and oxidation re...
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Abstract
The invention provides an alloy for hot dip plating and a production method. The alloy comprises: 1.35-1.45% of Al, 0.08-0.1% of Ni, 0.05-0.07% of Sb, 0.1% of rare earth, and the balance of Zn. The production method comprises the following steps: putting 1# zinc ingots, an aluminium plate and a nickel plate into a medium frequency furnace, including the aluminium plate and the nickel plate between the zinc ingots, melting in a heating furnace till the temperature of the zinc aluminium alloy reaches 650-750 DEG C, adding prepared antimony and rare earth into the alloy liquid in the medium frequency furnace, melting, allowing the temperature to be between 450 and 550 DEG C, stirring at a constant temperature for 30-50 min, taking the alloy liquid out of the furnace, and performing ingot casting to obtain the hot-dip alloy. The hot-dip alloy of the invention can increase the corrosion resistant performance and the anti-oxidation performance of a plating layer, improve the surface layer texture performance of precision thin plate steel and precision elements, allow the plating layer to be uniform, prolong the life of a plating member, and make the plating layer surface be beautiful. The invention is applicable to hot-dip alloy production and hot-dip zinc plating.
Description
technical field [0001] The invention belongs to the field of nonferrous metal metallurgy, and in particular relates to an alloy for hot-dip plating and a production method. Background technique [0002] Corrosion of steel has caused huge losses to enterprises. The direct economic loss caused by metal corrosion accounts for about 1-4% of the total output value of the national economy. Hot-dip galvanizing is one of the most effective methods for preventing atmospheric corrosion of steel. At present, domestic hot-dip galvanizing The main coating materials are zinc or zinc-aluminum, zinc-nickel alloys, most of which are used for hot-dip plating of large plates. not meet the quality requirements. The existing practice of hot-dip galvanizing has proved that the addition of aluminum element makes the specific gravity of zinc and aluminum too high, resulting in serious segregation, which affects the performance of the coating. The zinc-nickel alloy with nickel element is an ideal...
Claims
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