CN103131984A - High-performance low zinc hot dipping aluminium alloy plating material - Google Patents
High-performance low zinc hot dipping aluminium alloy plating material Download PDFInfo
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- CN103131984A CN103131984A CN2011103862478A CN201110386247A CN103131984A CN 103131984 A CN103131984 A CN 103131984A CN 2011103862478 A CN2011103862478 A CN 2011103862478A CN 201110386247 A CN201110386247 A CN 201110386247A CN 103131984 A CN103131984 A CN 103131984A
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Abstract
The invention discloses high-performance low zinc hot dipping aluminium alloy plating material, and is characterized in that the composition of alloy comprises, by element weight, 15%-25% of Zn, 0.001%-0.1% of Ag, 2.5%-6.0% of Cu, 0.1%-1.0% of Mn, 0.1%-0.5% of Pb, 0.01%-1.0% of grain refiner, 0.01%-1.0% of rare earth addition, and 0.1%-2.0% of Si, and the other compositions of the alloy are A1 and micro impurities which are unavoidable. The aluminium alloy plating material prepared by utilization of the technical scheme has the advantages that usage level of the Zn is little, and performance is high.
Description
Technical field
The present invention relates to a kind of aluminum alloy coating material, particularly the low zinc aluminum alloy plating material for hot-dip plating of a kind of high-performance.
Background technology
Galfan is the coating material of 5% Al-Zn system of Belgium's development, contain Fe, Si, Pb, Cd, the trace element such as Sn and rare earth, its fusing point is lower than pure zinc, solved the Galvalume plating solution problem poor to the wetting capacity of base steel, rely on the tiny eutectic structure of quick cooling generation of steel plate, therefore coating has higher than the solidity to corrosion of zinc and good coating performance, machine-shaping property and and weldability, but because of Pb, Cd, the low melting point metals such as Sn easily cause the intergranular corrosion (causing color change) of coating, the steel plate speed of cooling there is strict restriction, it is recessed that coating easily produces large-area hole, the problems such as high temperature oxidation resisting ability, use in the market that has affected Galfan, add that it still contains Zn more than 90%, having little significance aspect the saving zinc resource, can not solve the problem of hot dip process industry long-run development.
Summary of the invention
The technical problem that the present invention solves is: high, large to the dependency of the Zn problem of Zn content in the coating material of existing Al-Zn system the invention provides the low zinc aluminum alloy plating material for hot-dip plating of a kind of high-performance.
Technical scheme of the present invention:
A kind of high-performance is hanged down the zinc aluminum alloy plating material for hot-dip plating, and by element wt per-cent, this alloying constituent is Zn:15 ~ 25, Ag:10
-3～0.01, Cu:2.5～6.0, Mn:0.1～1.0, Pb:0.1～0.5, grain-refining agent 0.01～1.0, rare earth addition 0.01～1.0, Si:0.1～2.0, all the other are Al and inevitable trace impurity.
Grain-refining agent comprises one or more in Ti-B, Ti-C, Ti-N, Zr-B, Zr-C or Zr-N.
Rare earth addition is one or more in La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc, Y.
By conventional founding complete processing, make the Al-Zn alloy layer material again.
The beneficial effect that the present invention reaches:
(1) consumption of the Zn of the present invention's employing is only 15 ~ 25%,, the consumption of Al reaches 60%, makes the Zn of original use 90% be reduced to 15 ~ 25, makes the consumption 5% of Al bring up to 60%, for Zn, has significantly reduced the consumption of Zn with Al.
(2)Utilize Ag to the atomic polarization reducing effect of solvent element al and Al+Zn, effectively adjust the structure of atomic size and short-range order under microstate, make melt even structure on macroscopic view, reduce surface tension, and improve the affinity of melt and plating piece matrix, reach and improve coating and matrix tack; Can also keep beautiful surface attractive in appearance; Rare your element of minute quantity can produce unusual effect; Utilize Cu, generate strengthening phase, farthest improve the intensity of coating; Actual strength can surpass steel matrix; Utilize Ti-B, Ti-C, Ti-N, Zr-B, Zr-C, Zr-N grain refining element and fining agent, when high temperature by dissolving, diffusion and disperse, become nano level and even more tiny foreign atom cluster and stable molecular cluster, tiny " crystal seed ", gap phase and the interstitial compound that are evenly distributed in a large number are provided when the melt cooling crystallization, the grain size number of efficient refinement matrix, improve intensity, toughness, hardness, wear resistance and the high-temperature behavior of coating material, and then improved processibility and the weldability of plating piece; Utilize the comprehensive action of rare earth element additive, have the multiple booster action of atomic polarization, alloy strengthening, grain refining, surface-beautifying, dehydrogenation and enhancing erosion resistance.
Embodiment
Embodiment 1:
(1) by the selected group element of formula, according to weight percent be: Zn:15, Ag:10
-3, Cu:2.5, Mn:0.1, Pb:0.1, grain-refining agent Ti-B:0.01, rare earth addition Sm:0.01, Si:0.1, surplus is Al; The alloy total amount of preparation is 1000kg, and the weight of extrapolating every kind of required material is: Zn:150kg, Ag:0.01 kg, Cu:25 kg, Mn:1 kg, Pb:1 kg, grain-refining agent Ti-B:0. 1 kg, rare earth addition Sm:0.1 kg, Si:1 kg, Al:827.79kg.
(2) first add aluminium ingot or molten aluminum liquid in smelting furnace, heating makes it to melt fully and insulation under 700～800 ℃;
(3) add Ag, Cu, Mn, Pb by formula again, grain-refining agent, rare earth addition and Si add zinc at last again, stir; On-site sampling is analyzed, and according to analytical results and formula range, adjusts addition; Then continue melting and stirring, sampling analysis again is until each element ratio meets the formula requirement fully.
(4) then above-mentioned alloy melt is carried out furnace refining; Add refining agent in alloy melt, and stir, the melt refining is completed in enclosed environment.
(5) slagging-off after refining, degasification, standing, temperature adjustment to 660～720 ℃, aluminium alloy are toppled over and are come out of the stove, and filter simultaneously; In the mild impouring casting of filtrate ingot mould, by the sequential crystallization mode, melt is condensed in ingot mould from bottom to top, form the silvery white ingot shape.
Embodiment 2:
(1) by the selected group element of formula, according to weight percent be: Zn:25, Ag:0.01, Cu:6.0, Mn:1.0, Pb:0.5, grain-refining agent Zr-B:1.0, rare earth addition Sm:1.0, Si:2.0, surplus is Al; The alloy total amount of preparation is 1000kg, and the weight of extrapolating every kind of required material is: Zn:250kg, Ag:0. 1 kg, Cu:60 kg, Mn:10kg, Pb:5 kg, grain-refining agent Zr-B:10 kg, rare earth addition Sm:10 kg, Si:20 kg, Al:634.9kg.
All the other steps are with embodiment 1.
Embodiment 3:
(1) by the selected group element of formula, according to weight percent be: Zn:20, Ag:0.005, Cu:4.0, Mn:0.5, Pb:0.3, grain-refining agent: Ti-C+Zr-N:0.5, rare earth addition Y+ Pr:0.5, Si:1.0, surplus is Al; The alloy total amount of preparation is 1000kg, the weight of extrapolating every kind of required material is: Zn:200kg, Ag:0. 05 kg, Cu:40 kg, Mn:5kg, Pb:3 kg, grain-refining agent Ti-C:2.5 kg, Zr-N:2.5 kg, rare earth addition Y:3 kg, Pr: 2kg, Si:10 kg, Al:731.95kg.
All the other steps are with embodiment 1.
Claims (3)
1. a high-performance is hanged down the zinc aluminum alloy plating material for hot-dip plating, and it is characterized in that: by element wt per-cent, this alloying constituent is Zn:15 ~ 25, Ag:10
-3～0.01, Cu:2.5～6.0, Mn:0.1～1.0, Pb:0.1～0.5, grain-refining agent 0.01～1.0, rare earth addition 0.01～1.0, Si:0.1～2.0, all the other are Al and inevitable trace impurity.
2. high-performance according to claim 1 is hanged down the zinc aluminum alloy plating material for hot-dip plating, and it is characterized in that: grain-refining agent comprises one or more in Ti-B, Ti-C, Ti-N, Zr-B, Zr-C or Zr-N.
3. high-performance according to claim 1 is hanged down the zinc aluminum alloy plating material for hot-dip plating, and it is characterized in that: rare earth addition is one or more in La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc, Y.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103862478A CN103131984A (en) | 2011-11-29 | 2011-11-29 | High-performance low zinc hot dipping aluminium alloy plating material |
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| CN2011103862478A CN103131984A (en) | 2011-11-29 | 2011-11-29 | High-performance low zinc hot dipping aluminium alloy plating material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108004493A (en) * | 2017-12-07 | 2018-05-08 | 济南大学 | A kind of aluminium zinc silicon zirconium alloy for hot-dip and its immersion plating technology |
| CN115354325A (en) * | 2022-04-08 | 2022-11-18 | 贵州大学 | Method for improving corrosion resistance of as-cast Zn-5Al coating material by adding Gd |
| CN117344181A (en) * | 2023-10-10 | 2024-01-05 | 鞍钢股份有限公司 | Aluminum alloy coated steel plate with good high-temperature service performance and preparation method thereof |
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| JP2003049239A (en) * | 2001-02-26 | 2003-02-21 | Nippon Steel Corp | High strength galvanized steel sheet having excellent workability and production method therefor |
| CN101736248A (en) * | 2009-12-28 | 2010-06-16 | 无锡麟龙铝业有限公司 | Aluminum-silicon-zinc-rare earth-magnesium-ferrum-copper-manganese-chromium-zirconium-containing hot dip coating alloy and method for preparing same |
| CN101880800A (en) * | 2010-05-26 | 2010-11-10 | 上海大学 | High Al system Al-Zn-Si-Ti hot dip plating alloy with small crystal particles and high corrosion resistance |
| CN102181811A (en) * | 2011-04-28 | 2011-09-14 | 天津市恒兴钢业有限公司 | Process method for hot-dipping aluminized and galvanized silicon plate |
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2011
- 2011-11-29 CN CN2011103862478A patent/CN103131984A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003049239A (en) * | 2001-02-26 | 2003-02-21 | Nippon Steel Corp | High strength galvanized steel sheet having excellent workability and production method therefor |
| CN101736248A (en) * | 2009-12-28 | 2010-06-16 | 无锡麟龙铝业有限公司 | Aluminum-silicon-zinc-rare earth-magnesium-ferrum-copper-manganese-chromium-zirconium-containing hot dip coating alloy and method for preparing same |
| CN101880800A (en) * | 2010-05-26 | 2010-11-10 | 上海大学 | High Al system Al-Zn-Si-Ti hot dip plating alloy with small crystal particles and high corrosion resistance |
| CN102181811A (en) * | 2011-04-28 | 2011-09-14 | 天津市恒兴钢业有限公司 | Process method for hot-dipping aluminized and galvanized silicon plate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108004493A (en) * | 2017-12-07 | 2018-05-08 | 济南大学 | A kind of aluminium zinc silicon zirconium alloy for hot-dip and its immersion plating technology |
| CN115354325A (en) * | 2022-04-08 | 2022-11-18 | 贵州大学 | Method for improving corrosion resistance of as-cast Zn-5Al coating material by adding Gd |
| CN117344181A (en) * | 2023-10-10 | 2024-01-05 | 鞍钢股份有限公司 | Aluminum alloy coated steel plate with good high-temperature service performance and preparation method thereof |
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Application publication date: 20130605 |