CN103014581A - 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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- CN103014581A CN103014581A CN2012105673757A CN201210567375A CN103014581A CN 103014581 A CN103014581 A CN 103014581A CN 2012105673757 A CN2012105673757 A CN 2012105673757A CN 201210567375 A CN201210567375 A CN 201210567375A CN 103014581 A CN103014581 A CN 103014581A
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- 229910001093 Zr alloy Inorganic materials 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- -1 zinc-aluminum-magnesium-zirconium Chemical compound 0.000 title abstract description 12
- 239000011701 zinc Substances 0.000 claims abstract description 51
- 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
- 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
- 238000007670 refining Methods 0.000 claims abstract description 11
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000203 mixture Substances 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 15
- 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
- 238000005303 weighing Methods 0.000 claims description 6
- 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
- 239000000843 powder Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 240000003936 Plumbago auriculata Species 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 26
- 238000000576 coating method Methods 0.000 abstract description 26
- 229910000861 Mg alloy Inorganic materials 0.000 abstract description 10
- 238000005260 corrosion Methods 0.000 abstract description 10
- 230000007797 corrosion Effects 0.000 abstract description 9
- 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
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 14
- 239000011159 matrix material Substances 0.000 description 10
- 230000005496 eutectics Effects 0.000 description 9
- 238000005246 galvanizing Methods 0.000 description 7
- 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
- 229910000905 alloy phase Inorganic materials 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- 238000006243 chemical reaction 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
- 238000000034 method Methods 0.000 description 2
- 238000007747 plating Methods 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
- 238000009826 distribution 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
- 239000000155 melt Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 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 that is applied to the every profession and trade hardware.Pure zinc coating has good 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 the galvanic protection ability; Zinc aluminum alloy coating has then been taken into account the galvanic protection of zinc and the durable protectiveness 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 often is added among the zinc pond, such as aluminium, magnesium, nickel, silicon, rare earth etc.
Existing result of study shows, aluminium is a kind of the most effective alloying element that improves Corrosion Resistance of Zinc Coating; In the zinc pond, add a small amount of aluminium, because aluminium and iron-based body have extremely strong chemical affinity, aluminium can preferentially and iron-based reacts and give birth to the Fe-Al intermetallic compound on its surface in the coating forming process, suppress the growth of Fe-Zn reaction and fragility Fe-Zn phase, make the coating attenuate and have good adhesion property.
In the zinc pond, add magnesium can with silicon-containing active steel in silicon generate stable magnesium silicon compound, replace the formation of iron silicides and suppress the reaction of iron zinc, adding a small amount of magnesium in aluminium zinc can make the weave construction of coating change, suitably increase the content of magnesium, the gradually refinement of the crystal grain of coating, coating tissue become even; Magnesium mainly is distributed on the crystal boundary of zinc-aluminium in coating, plays the effect of strengthening crystal boundary, and the electrode reaction of coating is had strong restraining effect, makes coating show superior corrosion resistance.
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 the zinc-aluminum-magnesium alloy layer has remarkable corrosion resistance, carried out widely research abroad, develop multiple zinc-aluminum-magnesium alloy layer, and carried out patent protection.The Chinese patent result for retrieval shows: usually add the elements such as titanium, boron, zirconium, rare earth in the zinc-aluminum-magnesium alloy layer, but add-on is very little, generally all is trace, mass percent is 0.001-0.05%; When the add-on of zirconium greater than more than 0.05%, adopt separately zirconium to come the microstructure of refinement galvanized alloy to optimize structure of plating layer and improve the coating mechanical property as the alloying additive of dip galvanized aluminum magnesium coating, there is not yet report.
Therefore, utilizing zirconium to improve hot-dip aluminum zinc Mg Alloy Coating tissue and the expanded zinc aluminum magnesium alloy is the range of application of coating, formation is had the alloy layer of independent intellectual property right and satisfies better production application, is very necessary.
Summary of the invention
The objective of the invention is, a kind of hot-dip aluminum zinc Mg-Zr alloys is provided, the high-melting point alloy element zirconium is joined in the hot-dip aluminum zinc magnesium alloy, can significantly improve microstructure and the coating performance of alloy, the present invention also provides 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: be comprised of Zn, Al, Mg, Zr, by mass percentage, contain Al 4.5-6.5%, Mg 3.0-4.0%, Zr 0.25-0.75%, surplus is Zn.
The technical scheme that the preparation method of above-mentioned hot-dip aluminum zinc Mg-Zr alloys adopts is as follows: (1) is the good Zn piece of weighing, Al piece, Mg piece, AlZr master alloy in proportion, by mass percentage, the Al piece accounts for that 1.0-6.5%, Mg piece account for 3.0-4.0%, the AlZr master alloy accounts for 2.5-7.5 %; (2) the preheating plumbago crucible is to garnet, and load weighted aluminium block places crucible in proportion, and sprinkles the salt insulating covering agent on the aluminium block surface, then is warming up to 700 ℃-720 ℃; (3) melt rear adding spelter fully until aluminium block, stirring after the zinc fusing forms aluminium zinc liquid; (4) MAG block is pressed in the aluminium zinc liquid, and sprinkles an amount of salt insulating covering agent at molten surface, be as the criterion to cover molten surface; (5) melt rear adding aluminium zirconium hardener fully until MAG block, melt and stir; (6) aluminium alloy is cooled to 650 ℃ with stove and carries out refining and slagging-off; (7) cool to 450 ℃ with the furnace and drag for slag and cast.
Zn piece in the described step (1), Al piece, Mg piece 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 the described step (2) is the mixed uniformly solid state powder of 40-60%KCl and 40-60%NaCl for the massfraction through processed.
The material that refining and slagging-off are adopted in the described step (6) for the quality percentage composition through processed is: MgCl
218-28%, KCl 35-45%, NaCl 30-40%, BaCl
22-4%, CaCl
22-4%, CaF
22-4%.
The temperature of refining and slagging-off is 650 ℃ in the described step (6).
The temperature of refining and slagging-off can not be lower than 630 ℃ in the described step (6).
The matrix of hot-dip aluminum zinc Mg-Zr alloys of the present invention is Zn/Al/MgZn
2The ternary eutectic tissue, the rich Zn phase that distributing on the matrix of alloy, or distributing rich Zn phase and rich Al mixed phase mutually, or the rich Zn phase that distributing, rich Al phase and AlZnZr master alloy mixed phase mutually.
The invention has the beneficial effects as follows: by in existing hot-dip aluminum zinc magnesium alloy, adding the zirconium of proper content, improve microstructure and the structure of galvanized alloy, make primary phase change mutually tiny rich Zn phase, rich Al phase and ZnAlZr master alloy phase into by original thick rich Zn, the distribution of primary phase is more even, it is more tiny and fine and close that eutectic structure also becomes, use this galvanized alloy will be conducive to improve the corrosion resistance nature of hot-dip aluminum zinc Mg Alloy Coating, improve microstructure and the mechanical property of hot-dip aluminum zinc Mg Alloy Coating.
Description of drawings
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
The invention will be further described below in conjunction with drawings and Examples.
Embodiment 1
(1) the in proportion good Zn piece of weighing, Al piece, Mg piece, by mass percentage, the composition of alloy is: Al 5.5%, Mg 3.5%, Zn surplus;
(2) the preheating plumbago crucible is to garnet, and load weighted aluminium block places crucible in proportion, and sprinkles the salt insulating covering agent on the aluminium block surface, then is warming up to 720 ℃;
(3) melt rear adding spelter fully until aluminium block, stirring after the zinc fusing forms aluminium zinc liquid;
(4) MAG block is pressed in the aluminium zinc liquid, and sprinkles the salt insulating covering agent at molten surface, be as the criterion to cover molten surface;
(5) after MAG block melts fully, alloy molten solution is stirred;
(6) alloy molten solution is cooled to 650 ℃ with stove and carries out refining and slagging-off;
(7) cool to 450 ℃ with the furnace and drag for slag and cast.
The stereoscan photograph of the hot dip galvanizing that obtains by above-mentioned steps-5.5%Al-3.5%Mg alloy can find out as shown in Figure 1, and the matrix of this alloy is Zn/Al/MgZn
2The ternary eutectic tissue, at the matrix dendritic rich Zn primary phase that distributing, crystal grain is thicker.
Embodiment 2
(1) the in proportion good Zn piece of weighing, Al piece, Mg piece, AlZr10 master alloy, 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 piece 3.25%, Mg piece 3.5%, AlZr10 master alloy 2.5%, Zn piece surplus;
(2) the preheating plumbago crucible is to garnet, and load weighted aluminium block places crucible in proportion, and sprinkles the salt insulating covering agent on the aluminium block surface, then is warming up to 720 ℃;
(3) melt rear adding spelter fully until aluminium block, stirring after the zinc fusing forms aluminium zinc liquid;
(4) MAG block is pressed in the aluminium zinc liquid, and sprinkles the salt insulating covering agent at molten surface, be as the criterion to cover molten surface;
(5) melt rear adding AlZr10 master alloy fully until MAG block, melt and stir;
(6) alloy molten solution is cooled to 650 ℃ with stove and carries out refining and slagging-off;
(7) cool to 450 ℃ with the furnace and drag for slag and cast.
The stereoscan photograph of the hot dip galvanizing that obtains by above-mentioned steps-5.5%Al-3.5%Mg-0.25%Zr alloy can find out as shown in Figure 2, and the matrix of this alloy is Zn/Al/MgZn
2The ternary eutectic tissue, eutectic structure is finer and close than the alloy structure that does not contain zirconium; At matrix distributing dendritic rich Zn primary phase and rich Al primary phase, the alloy that crystal grain does not more contain zirconium becomes tiny.
Embodiment 3
(1) the in proportion good Zn piece of weighing, Al piece, Mg piece, AlZr10 master alloy, 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 piece 1%, Mg piece 3.5%, AlZr10 master alloy 5%, Zn piece surplus;
(2) the preheating plumbago crucible is to garnet, and load weighted aluminium block places crucible in proportion, and sprinkles the salt insulating covering agent on the aluminium block surface, then is warming up to 710 ℃;
(3) melt rear adding spelter fully until aluminium block, stirring after the zinc fusing forms aluminium zinc liquid;
(4) MAG block is pressed in the aluminium zinc liquid, and sprinkles the salt insulating covering agent at molten surface, be as the criterion to cover molten surface;
(5) melt rear adding AlZr10 master alloy fully until MAG block, melt and stir;
(6) alloy molten solution is cooled to 650 ℃ with stove and carries out refining and slagging-off;
(7) cool to 450 ℃ with the furnace and drag for slag and cast.
The stereoscan photograph of the hot dip galvanizing that obtains by above-mentioned steps-5.5%Al-3.5%Mg-0.5%Zr alloy as shown in Figure 3, the matrix of this alloy is Zn/Al/MgZn
2The ternary eutectic tissue, in matrix distributing dendritic rich Zn primary phase, rich Al primary phase and a small amount of ZnAlZr master alloy phase, wherein, the ZnAlZr master alloy mainly is distributed in the rich Zn phase of dendroid and rich Al center mutually mutually, can find out, along with the increase of zirconium content, it is finer and close that eutectic structure becomes, and it is more tiny that primary phase also becomes.
Embodiment 4
(1) the in proportion good Zn piece of weighing, Al piece, Mg piece, AlZr15 master alloy, 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 piece 1.25%, Mg piece 3.5%, AlZr15 master alloy 5%, Zn piece surplus;
(2) the preheating plumbago crucible is to garnet, and load weighted aluminium block places crucible in proportion, and sprinkles the salt insulating covering agent on the aluminium block surface, then is warming up to 700 ℃;
(3) melt rear adding spelter fully until aluminium block, stirring after the zinc fusing forms aluminium zinc liquid;
(4) MAG block is pressed in the aluminium zinc liquid, and sprinkles the salt insulating covering agent at molten surface, be as the criterion to cover molten surface;
(5) melt rear adding AlZr15 master alloy fully until MAG block, melt and stir;
(6) alloy molten solution is cooled to 650 ℃ with stove and carries out refining and slagging-off;
(7) cool to 450 ℃ with the furnace and drag for slag and cast.
The stereoscan photograph of the hot dip galvanizing that obtains by above-mentioned steps-5.5%Al-3.5%Mg-0.75%Zr alloy as shown in Figure 4, the matrix of this alloy is Zn/Al/MgZn
2The ternary eutectic tissue, can find out that along with the increase of zirconium content, eutectic structure is finer and close than organizing of embodiment 3 in matrix distributing dendritic rich Zn primary phase, rich Al primary phase and ZnAlZr master alloy phase, and primary phase is more tiny.
Claims (5)
1. hot-dip aluminum zinc Mg-Zr alloys, it is characterized in that: described alloy is comprised of Zn, Al, Mg, Zr, by mass percentage, contains Al 4.5-6.5%, Mg 3.0-4.0%, Zr 0.25-0.75%, surplus is Zn.
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) the in proportion good Zn piece of weighing, Al piece, Mg piece, AlZr master alloy;
(2) the preheating plumbago crucible is to garnet, and load weighted aluminium block places crucible in proportion, and sprinkles the salt insulating covering agent on the aluminium block surface, then is warming up to 700 ℃-720 ℃;
(3) melt rear adding spelter fully until aluminium block, stirring after the zinc fusing forms aluminium zinc liquid;
(4) MAG block is pressed in the aluminium zinc liquid, and sprinkles the salt insulating covering agent at molten surface, be as the criterion to cover molten surface;
(5) melt rear adding aluminium zirconium hardener fully until MAG block, melt and stir;
(6) aluminium alloy is cooled to 650 ℃ with stove and carries out refining and slagging-off;
(7) cool to 450 ℃ with the furnace and drag 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 piece in the described step (1), Al piece, Mg piece all adopt commercial aluminium ingot, zinc ingot metal, magnesium ingot, and 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 the step (4) is the mixed uniformly solid state powder of 40-60%KCl and 40-60%NaCl for the massfraction through 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: the component of the material that refining and slagging-off are adopted in the described step (6) is through processed, and component is calculated as according to the quality percentage composition: MgCl
218-28%, KCl 35-45%, NaCl 30-40%, BaCl
22-4%, CaCl
22-4%, CaF
22-4%.
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| CN103498122A (en) * | 2013-09-11 | 2014-01-08 | 常州大学 | Zn-Al-Zr-B alloy for hot dipping and preparation method thereof |
| CN106480337A (en) * | 2015-08-31 | 2017-03-08 | 鞍钢股份有限公司 | A kind of hot dip zinc-aluminium magnesium alloy and its manufacture method |
| CN106480338A (en) * | 2015-08-31 | 2017-03-08 | 鞍钢股份有限公司 | For adjusting zinc-aluminium magnesium alloy and its direct melting method of hot dipping solution composition |
| CN108118218A (en) * | 2016-11-30 | 2018-06-05 | 宝山钢铁股份有限公司 | A kind of excellent hot-dip coated steel sheet of anti-cut mouth corrosive nature and its manufacturing method |
| CN109266889A (en) * | 2018-12-05 | 2019-01-25 | 四川大学 | A kind of composite refining method of the magnesium alloy containing zirconium |
| 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 |
| 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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| CN103498122A (en) * | 2013-09-11 | 2014-01-08 | 常州大学 | Zn-Al-Zr-B alloy for hot dipping and preparation method thereof |
| 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 |
| CN106480337A (en) * | 2015-08-31 | 2017-03-08 | 鞍钢股份有限公司 | A kind of hot dip zinc-aluminium magnesium alloy and its manufacture method |
| CN106480338A (en) * | 2015-08-31 | 2017-03-08 | 鞍钢股份有限公司 | For adjusting zinc-aluminium magnesium alloy and its direct melting method of hot dipping solution composition |
| CN108118218A (en) * | 2016-11-30 | 2018-06-05 | 宝山钢铁股份有限公司 | A kind of excellent hot-dip coated steel sheet of anti-cut mouth corrosive nature and its manufacturing method |
| CN108118218B (en) * | 2016-11-30 | 2019-07-23 | 宝山钢铁股份有限公司 | A kind of hot-dip coated steel sheet and its manufacturing method that anti-cut mouth corrosive nature is excellent |
| 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 |
| CN109266889A (en) * | 2018-12-05 | 2019-01-25 | 四川大学 | A kind of composite refining method of the magnesium alloy containing zirconium |
| 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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