CN103014581B - Hot-dip plated zinc-aluminum-magnesium-zirconium alloy and preparation method thereof - Google Patents
Hot-dip plated zinc-aluminum-magnesium-zirconium alloy and preparation method thereof Download PDFInfo
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- 229910001093 Zr alloy Inorganic materials 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- -1 zinc-aluminum-magnesium-zirconium Chemical compound 0.000 title claims abstract description 13
- 239000011701 zinc Substances 0.000 claims abstract description 53
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 46
- 239000000956 alloy Substances 0.000 claims abstract description 46
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 31
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000011777 magnesium Substances 0.000 claims abstract description 29
- 239000011248 coating agent Substances 0.000 claims abstract description 28
- 238000000576 coating method Methods 0.000 claims abstract description 28
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 20
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 20
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 claims abstract description 17
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 150000003839 salts Chemical class 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 229910000861 Mg alloy Inorganic materials 0.000 claims abstract description 11
- 238000005260 corrosion Methods 0.000 claims abstract description 11
- 238000007670 refining Methods 0.000 claims abstract description 11
- 230000007797 corrosion Effects 0.000 claims abstract description 10
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002893 slag Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000004411 aluminium Substances 0.000 claims description 26
- 229910052726 zirconium Inorganic materials 0.000 claims description 21
- FJMNNXLGOUYVHO-UHFFFAOYSA-N aluminum zinc Chemical compound [Al].[Zn] FJMNNXLGOUYVHO-UHFFFAOYSA-N 0.000 claims description 17
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 14
- 239000000155 melt Substances 0.000 claims description 12
- 230000005496 eutectics Effects 0.000 claims description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910000635 Spelter Inorganic materials 0.000 claims description 6
- 239000002223 garnet Substances 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 229910000905 alloy phase Inorganic materials 0.000 claims description 5
- DNXNYEBMOSARMM-UHFFFAOYSA-N alumane;zirconium Chemical compound [AlH3].[Zr] DNXNYEBMOSARMM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000004848 polyfunctional curative Substances 0.000 claims description 4
- 239000011780 sodium chloride Substances 0.000 claims description 4
- 229910016952 AlZr Inorganic materials 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910004261 CaF 2 Inorganic materials 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 240000003936 Plumbago auriculata Species 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 6
- 229910000611 Zinc aluminium Inorganic materials 0.000 abstract description 4
- 229910001297 Zn alloy Inorganic materials 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 2
- ZGUQGPFMMTZGBQ-UHFFFAOYSA-N [Al].[Al].[Zr] Chemical compound [Al].[Al].[Zr] ZGUQGPFMMTZGBQ-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910017706 MgZn Inorganic materials 0.000 description 5
- 241000209456 Plumbago Species 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- 238000005246 galvanizing Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 241000555268 Dendroides Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- MKPXGEVFQSIKGE-UHFFFAOYSA-N [Mg].[Si] Chemical compound [Mg].[Si] MKPXGEVFQSIKGE-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention relates to a zinc alloy coating material and a preparation method thereof, in particular to a hot-dip plated zinc-aluminum-magnesium-zirconium alloy and a preparation method thereof. The hot-dip plated zinc-aluminum-magnesium-zirconium alloy comprises the following components in mass percentage: 4.5-6.5% of Al, 3.0-4.0% of Mg, 0.25-0.75% of Zr and the balance of Zn. The preparation method comprises the following steps: putting aluminum blocks into an induction furnace, heating to 700-720 DEG C to obtain aluminum liquid; spreading a salt covering agent on the surface of the aluminum liquid, adding zinc, melting, stirring uniformly to obtain zinc-aluminum alloy liquid; pressing an magnesium block and aluminum-zirconium intermediate alloy into the zinc-aluminum alloy liquid, stirring and mixing uniformly, cooling the mixture to 650 DEG C along with the furnace, and refining and deslagging; and further cooling the mixture to 450 DEG C along with the furnace, and fishing out slag and pouring. Through reasonable proportioning of elements in the zinc-aluminum-magnesium-zirconium alloy, the microstructure and the structure of zinc-plated alloy are thinned; and after adoption of the hot-dip zinc-plated alloy, the corrosion resistance of a hot-dip plated zinc-aluminum-magnesium alloy coating can be improved easily, and the microstructure and mechanical properties of the hot-dip plated zinc-aluminum-magnesium alloy coating are improved.
Description
Technical field
The present invention relates to a kind of zn alloy coating material and preparation method thereof, particularly a kind of hot-dip aluminum zinc Mg-Zr alloys and preparation method thereof.
Background technology
Galvanizing is a kind of economic, convenient and effective anti-corrosion method being applied to every profession and trade hardware.Pure zinc coating has excellent sacrifice protective effect, but the coating durability period is short; Hot dip alumin(i)um coating is fine and close, and the durability period is long, but galvanic protection ability; Zinc aluminum alloy coating has then taken into account the galvanic protection of zinc and the durable protective of aluminium; the superior performance of the more single metal plating of various performances of its coating; Corrosion Protection is more high than the pure zinc coating of condition of equivalent thickness especially; for improving corrosion resistance and the galvanizing production quality of galvanizing production; alloying elements is often added among zinc pond, as aluminium, magnesium, nickel, silicon, rare earth etc.
Existing result of study shows, aluminium is a kind of the most effective alloying element improving Corrosion Resistance of Zinc Coating; A small amount of aluminium is added in zinc pond, because aluminium and iron-based body have extremely strong chemical affinity, in coating forming process, aluminium can preferential react with iron-based and surperficially give birth to Fe-Al intermetallic compound at it, suppress the growth of Fe-Zn reaction and fragility Fe-Zn phase, make coating thinning and there is good adhesion property.
In zinc pond, add magnesium can generate stable magnesium silicon compound with the silicon in silicon-containing active steel, replace the formation of iron silicides and suppress iron zinc to react, in aluminium zinc, add a small amount of magnesium can make the weave construction of coating change, suitably increase the content of magnesium, the crystal grain refinement gradually of coating, coating microstructure becomes even; Magnesium is mainly distributed on the crystal boundary of zinc-aluminium in coating, plays the effect of strengthening crystal boundary, has strong restraining effect, make coating show superior corrosion resistance to the electrode reaction of coating.
Zirconium is a kind of refractory metal element, and Chang Zuowei strengthening element or alterant add in other metal or alloy; Zirconium has high fusing point and excellent corrosion resistance, and the fusing point of zirconium is higher than titanium, and the corrosion resistance of zirconium is better than titanium alloy, is widely used in the fields such as space flight, military project, nuclear reaction, nuclear power.
Because zinc-aluminum-magnesium alloy layer has remarkable corrosion resistance, abroad carry out and studied widely, developed multiple zinc-aluminum-magnesium alloy layer, and carried out patent protection.Chinese patent result for retrieval shows: in zinc-aluminum-magnesium alloy layer, usually add the elements such as titanium, boron, zirconium, rare earth, but add-on is very little, and be all generally trace, mass percent is 0.001-0.05%; When the add-on of zirconium is greater than more than 0.05%, adopt separately zirconium carry out the microstructure optimization structure of plating layer of refinement galvanized alloy as the alloying additive of dip galvanized aluminum magnesium coating and improve coating mechanical property, there is not yet report.
Therefore, utilize zirconium to improve the range of application of hot-dip aluminum zinc Mg Alloy Coating tissue and expanded zinc aluminum magnesium alloy system coating, having the alloy layer of independent intellectual property right to formation and meet production application better, is very necessary.
Summary of the invention
The object of the invention is, provide a kind of hot-dip aluminum zinc Mg-Zr alloys, high-melting point alloy element zirconium is joined in hot-dip aluminum zinc magnesium alloy, significantly can improve microstructure and the coating performance of alloy, present invention also offers the preparation method of this hot-dip aluminum zinc Mg-Zr alloys.
The technical scheme that hot-dip aluminum zinc Mg-Zr alloys of the present invention adopts is: being made up of Zn, Al, Mg, Zr, by mass percentage, is Zn containing Al 4.5-6.5%, Mg 3.0-4.0%, Zr 0.25-0.75%, surplus.
The technical scheme that the preparation method of above-mentioned hot-dip aluminum zinc Mg-Zr alloys adopts is as follows: (1) has weighed Zn block, Al block, Mg block, AlZr master alloy in proportion, by mass percentage, Al block accounts for 1.0-6.5%, Mg block and accounts for 3.0-4.0%, AlZr master alloy and account for 2.5-7.5 %; (2) preheating plumbago crucible is to garnet, will be placed in crucible by load weighted aluminium block in proportion, and sprinkle salt insulating covering agent on aluminium block surface, and then be warming up to 700 DEG C-720 DEG C; (3) after aluminium block melts completely, add spelter, stirring after zinc fusing forms aluminium zinc liquid; (4) MAG block is pressed in aluminium zinc liquid, and sprinkles appropriate salt insulating covering agent at molten surface, be as the criterion to cover molten surface; (5) after MAG block melts completely, add aluminium zirconium hardener, melt and stir; (6) aluminium alloy is cooled to 650 DEG C with stove and carries out refining and slagging-off; (7) cool to 450 DEG C with the furnace to carry out dragging for slag and cast.
Zn block in described step (1), Al block, Mg block all adopt commercial aluminium ingot, zinc ingot metal, magnesium ingot, and aluminium zirconium hardener is AlZr10 or AlZr15 master alloy.
Salt insulating covering agent in described step (2) is be the mixed uniformly solid state powder of 40-60%KCl and 40-60%NaCl through the massfraction of processed.
The material that refining and slagging-off adopt in described step (6) is: MgCl
218-28%, KCl 35-45%, NaCl 30-40%, BaCl
22-4%, CaCl
22-4%, CaF
22-4%.
In described step (6), the temperature of refining and slagging-off is 650 DEG C.
In described step (6), the temperature of refining and slagging-off can not lower than 630 DEG C.
The matrix of hot-dip aluminum zinc Mg-Zr alloys of the present invention is Zn/Al/MgZn
2ternary eutectic tissue, the matrix of alloy is dispersed with rich Zn phase, or is dispersed with the mixed phase of rich Zn phase and rich Al phase, or is dispersed with the mixed phase of rich Zn phase, rich Al phase and AlZnZr master alloy phase.
The invention has the beneficial effects as follows: by adding the zirconium of proper content in existing hot-dip aluminum zinc magnesium alloy, improve microstructure and the structure of galvanized alloy, primary phase is made to be tiny rich Zn phase, rich Al phase and ZnAlZr master alloy phase by original thick rich Zn phase in version, the distribution of primary phase is more even, eutectic structure also becomes more tiny and fine and close, using this galvanized alloy by being conducive to improving the corrosion resistance nature of hot-dip aluminum zinc Mg Alloy Coating, improving microstructure and the mechanical property of hot-dip aluminum zinc Mg Alloy Coating.
Accompanying drawing explanation
Fig. 1 is the stereoscan photograph of hot dip galvanizing-5.5%Al-3.5%Mg alloy;
Fig. 2 is the stereoscan photograph of hot dip galvanizing-5.5%Al-3.5%Mg-0.25%Zr alloy;
Fig. 3 is the stereoscan photograph of hot dip galvanizing-5.5%Al-3.5%Mg-0.5%Zr alloy;
Fig. 4 is the stereoscan photograph of hot dip galvanizing-5.5%Al-3.5%Mg-0.75%Zr alloy;
Above-mentioned content is mass percentage content.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
embodiment 1
(1) weighed Zn block, Al block, Mg block in proportion, by mass percentage, the composition of alloy is: Al 5.5%, Mg 3.5%, Zn surplus;
(2) preheating plumbago crucible is to garnet, will be placed in crucible by load weighted aluminium block in proportion, and sprinkle salt insulating covering agent on aluminium block surface, and then be warming up to 720 DEG C;
(3) after aluminium block melts completely, add spelter, stirring after zinc fusing forms aluminium zinc liquid;
(4) MAG block is pressed in aluminium zinc liquid, and sprinkles salt insulating covering agent at molten surface, be as the criterion to cover molten surface;
(5) after MAG block melts completely, alloy molten solution is stirred;
(6) alloy molten solution is cooled to 650 DEG C with stove and carries out refining and slagging-off;
(7) cool to 450 DEG C with the furnace to carry out dragging for slag and cast.
The stereoscan photograph of the hot dip galvanizing-5.5%Al-3.5%Mg alloy obtained by above-mentioned steps as shown in Figure 1, can be found out, the matrix of this alloy is Zn/Al/MgZn
2ternary eutectic tissue, matrix is dispersed with dendritic rich Zn primary phase, and crystal grain is thicker.
embodiment 2
(1) Zn block, Al block, Mg block, AlZr10 master alloy has been weighed in proportion, by mass percentage, the composition of alloy is: Al 5.5%, Mg 3.5%, Zr 0.25%, surplus is Zn, and corresponding raw-material mass percent is: Al block 3.25%, Mg block 3.5%, AlZr10 master alloy 2.5%, Zn block surplus;
(2) preheating plumbago crucible is to garnet, will be placed in crucible by load weighted aluminium block in proportion, and sprinkle salt insulating covering agent on aluminium block surface, and then be warming up to 720 DEG C;
(3) after aluminium block melts completely, add spelter, stirring after zinc fusing forms aluminium zinc liquid;
(4) MAG block is pressed in aluminium zinc liquid, and sprinkles salt insulating covering agent at molten surface, be as the criterion to cover molten surface;
(5) after MAG block melts completely, add AlZr10 master alloy, melt and stir;
(6) alloy molten solution is cooled to 650 DEG C with stove and carries out refining and slagging-off;
(7) cool to 450 DEG C with the furnace to carry out dragging for slag and cast.
The stereoscan photograph of the hot dip galvanizing-5.5%Al-3.5%Mg-0.25%Zr alloy obtained by above-mentioned steps as shown in Figure 2, can be found out, the matrix of this alloy is Zn/Al/MgZn
2ternary eutectic tissue, eutectic structure is finer and close than the alloy structure not containing zirconium; Matrix is dispersed with dendritic rich Zn primary phase and rich Al primary phase, and crystal grain does not become tiny containing the alloy of zirconium.
embodiment 3
(1) Zn block, Al block, Mg block, AlZr10 master alloy has been weighed in proportion, by mass percentage, the composition of alloy is: Al 5.5%, Mg 3.5%, Zr 0.5%, surplus is Zn, and corresponding raw-material mass percent is: Al block 1%, Mg block 3.5%, AlZr10 master alloy 5%, Zn block surplus;
(2) preheating plumbago crucible is to garnet, will be placed in crucible by load weighted aluminium block in proportion, and sprinkle salt insulating covering agent on aluminium block surface, and then be warming up to 710 DEG C;
(3) after aluminium block melts completely, add spelter, stirring after zinc fusing forms aluminium zinc liquid;
(4) MAG block is pressed in aluminium zinc liquid, and sprinkles salt insulating covering agent at molten surface, be as the criterion to cover molten surface;
(5) after MAG block melts completely, add AlZr10 master alloy, melt and stir;
(6) alloy molten solution is cooled to 650 DEG C with stove and carries out refining and slagging-off;
(7) cool to 450 DEG C with the furnace to carry out dragging for slag and cast.
As shown in Figure 3, the matrix of this alloy is Zn/Al/MgZn to the stereoscan photograph of the hot dip galvanizing-5.5%Al-3.5%Mg-0.5%Zr alloy obtained by above-mentioned steps
2ternary eutectic tissue, matrix is dispersed with dendritic rich Zn primary phase, rich Al primary phase and a small amount of ZnAlZr master alloy phase, wherein, ZnAlZr master alloy is mainly distributed in the center of the rich Zn phase of dendroid and rich Al phase mutually, can find out, along with the increase of zirconium content, eutectic structure becomes finer and close, and primary phase also becomes more tiny.
embodiment 4
(1) Zn block, Al block, Mg block, AlZr15 master alloy has been weighed in proportion, by mass percentage, the composition of alloy is: Al 5.5%, Mg 3.5%, Zr 0.75%, surplus is Zn, and corresponding raw-material mass percent is: Al block 1.25%, Mg block 3.5%, AlZr15 master alloy 5%, Zn block surplus;
(2) preheating plumbago crucible is to garnet, will be placed in crucible by load weighted aluminium block in proportion, and sprinkle salt insulating covering agent on aluminium block surface, and then be warming up to 700 DEG C;
(3) after aluminium block melts completely, add spelter, stirring after zinc fusing forms aluminium zinc liquid;
(4) MAG block is pressed in aluminium zinc liquid, and sprinkles salt insulating covering agent at molten surface, be as the criterion to cover molten surface;
(5) after MAG block melts completely, add AlZr15 master alloy, melt and stir;
(6) alloy molten solution is cooled to 650 DEG C with stove and carries out refining and slagging-off;
(7) cool to 450 DEG C with the furnace to carry out dragging for slag and cast.
As shown in Figure 4, the matrix of this alloy is Zn/Al/MgZn to the stereoscan photograph of the hot dip galvanizing-5.5%Al-3.5%Mg-0.75%Zr alloy obtained by above-mentioned steps
2ternary eutectic tissue, matrix is dispersed with dendritic rich Zn primary phase, rich Al primary phase and ZnAlZr master alloy phase, can finds out, along with the increase of zirconium content, eutectic structure is finer and close than organizing of embodiment 3, and primary phase is more tiny.
Claims (5)
1. a hot-dip aluminum zinc Mg-Zr alloys, is characterized in that: described alloy is made up of Zn, Al, Mg, Zr, by mass percentage, is Zn containing Al 4.5-6.5%, Mg 3.0-4.0%, Zr 0.25-0.75%, surplus; By adding the zirconium of proper content in existing hot-dip aluminum zinc magnesium alloy, improve microstructure and the structure of galvanized alloy, primary phase is made to be tiny rich Zn phase, rich Al phase and ZnAlZr master alloy phase by original thick rich Zn phase in version, the distribution of primary phase is more even, eutectic structure also becomes more tiny and fine and close, using this galvanized alloy by being conducive to improving the corrosion resistance nature of hot-dip aluminum zinc Mg Alloy Coating, improving microstructure and the mechanical property of hot-dip aluminum zinc Mg Alloy Coating.
2. the preparation method of a kind of hot-dip aluminum zinc Mg-Zr alloys as claimed in claim 1, is characterized in that comprising the steps:
(1) Zn block, Al block, Mg block, AlZr master alloy has been weighed in proportion;
(2) preheating plumbago crucible is to garnet, will be placed in crucible by load weighted aluminium block in proportion, and sprinkle salt insulating covering agent on aluminium block surface, and then be warming up to 700 DEG C-720 DEG C;
(3) after aluminium block melts completely, add spelter, stirring after zinc fusing forms aluminium zinc liquid;
(4) MAG block is pressed in aluminium zinc liquid, and sprinkles salt insulating covering agent at molten surface, be as the criterion to cover molten surface;
(5) after MAG block melts completely, add aluminium zirconium hardener, melt and stir;
(6) aluminium alloy is cooled to 650 DEG C with stove and carries out refining and slagging-off;
(7) cool to 450 DEG C with the furnace to carry out dragging for slag and cast.
3. the preparation method of a kind of hot-dip aluminum zinc Mg-Zr alloys as claimed in claim 2, it is characterized in that: the Zn block in described step (1), Al block, Mg block all adopt commercial aluminium ingot, zinc ingot metal, magnesium ingot, aluminium zirconium hardener is AlZr10 or AlZr15 master alloy.
4. the preparation method of a kind of hot-dip aluminum zinc Mg-Zr alloys as claimed in claim 2, is characterized in that: the salt insulating covering agent in described step (2) and step (4) is be the mixed uniformly solid state powder of 40-60%KCl and 40-60%NaCl through the massfraction of processed.
5. the preparation method of a kind of hot-dip aluminum zinc Mg-Zr alloys as claimed in claim 2, is characterized in that: in described step (6), the component of the material that refining and slagging-off adopt is through processed, and component is calculated as according to mass percentage: MgCl
218-28%, KCl 35-45%, NaCl 30-40%, BaCl
22-4%, CaCl
22-4%, CaF
22-4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210567375.7A CN103014581B (en) | 2012-12-25 | 2012-12-25 | Hot-dip plated zinc-aluminum-magnesium-zirconium alloy and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210567375.7A CN103014581B (en) | 2012-12-25 | 2012-12-25 | Hot-dip plated zinc-aluminum-magnesium-zirconium alloy and preparation method thereof |
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| CN103014581B true CN103014581B (en) | 2014-12-31 |
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| CN103498122B (en) * | 2013-09-11 | 2016-01-27 | 常州大学 | A kind of preparation method of Zn-Al-Zr-B alloy used for hot dip galvanizing |
| CN106480337B (en) * | 2015-08-31 | 2018-04-03 | 鞍钢股份有限公司 | Zinc-aluminum-magnesium alloy for hot dipping and manufacturing method thereof |
| CN106480338B (en) * | 2015-08-31 | 2018-04-03 | 鞍钢股份有限公司 | Zinc-aluminum-magnesium alloy for adjusting components of hot-dip plating solution and direct smelting method thereof |
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| CN109402450A (en) * | 2018-09-28 | 2019-03-01 | 济南大学 | A kind of zinc-aluminium magnesium alloy and preparation method thereof of the hot dip containing zr element |
| CN109266889B (en) * | 2018-12-05 | 2020-10-02 | 四川大学 | Composite refining method of zirconium-containing magnesium alloy |
| CN109763030A (en) * | 2019-03-14 | 2019-05-17 | 常州大学 | A kind of zinc-aluminum-magnesium intermediate alloy and its method supplementing magnesium elements loss in zinc pond |
| CN114134444A (en) * | 2021-11-30 | 2022-03-04 | 攀钢集团攀枝花钢铁研究院有限公司 | Zinc-aluminum-magnesium alloy coated steel plate and preparation method thereof |
| CN115354192A (en) * | 2022-08-23 | 2022-11-18 | 辛集市澳森金属制品有限公司 | High-strength and high-toughness zinc-aluminum alloy galvanized wire and preparation method thereof |
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