CN101812607A - Magnesium alloy refiner and preparation method thereof - Google Patents
Magnesium alloy refiner and preparation method thereof Download PDFInfo
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- CN101812607A CN101812607A CN 201010152755 CN201010152755A CN101812607A CN 101812607 A CN101812607 A CN 101812607A CN 201010152755 CN201010152755 CN 201010152755 CN 201010152755 A CN201010152755 A CN 201010152755A CN 101812607 A CN101812607 A CN 101812607A
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Abstract
The invention discloses a magnesium alloy refiner and a preparation method thereof, and relates to a grain refiner and a preparation method thereof. The method solves the problems that an overheating treatment method of the existing magnesium alloy refining method has strict condition requirement, the oxidation burning loss of magnesium is serous, a carbon-containing material treatment method has high temperature and produces harmful gases such as Cl2, HCl and the like, a ferric chloride method reduces the corrosion resistance of the magnesium alloy, an alloying method has high cost, a granular graphite or aluminium carbide granule method is easy to produce segregation on the grain boundary and a Zr element method has narrow application range. The magnesium alloy refiner is prepared from a calcium metal and a primary magnesium ingot. The preparation method comprises the following steps: heating and melting the primary magnesium ingot under atmospheric protection, then adding the calcium metal into the melted primary magnesium ingot, dissolving the calcium metal and stirring the mixture uniformly, and casting the mixture to form the magnesium alloy refiner. The magnesium alloy refiner has no burning loss, does not produce the harmful gases, has no influence on the corrosion resistance of the magnesium alloy, has low cost, is uniformly distributed in the alloy, can improve the mechanical property of the alloy, and is used for refining the magnesium alloy.
Description
Technical field
The present invention relates to grain-refining agent and preparation method thereof.
Background technology
Therefore magnesium alloy can be widely used in the fields such as aerospace, automobile, machinery, electronics, computer owing to have high specific tenacity, specific rigidity, reaches the purpose that reduces construction weight.Use magnesium alloy refiner magnesium alloy fused mass is carried out the important means that thinning processing is raising magnesium alloy over-all properties and the Mg alloy formed property of improvement.The grain refining effect is mainly reflected in following several respects: 1. tiny crystal grain then helps to improve the mechanical property and the plastic deformation ability of alloy; 2. tiny crystal grain then helps to reduce hot tearing and casting flaw such as loose, thereby the performance of alloy is improved; In addition, tiny crystal grain also helps to improve the corrosion resistance nature and the processing characteristics of magnesium alloy.The Mg-Al alloy is the most frequently used commercial magnesium alloy, because therefore the existence of Aluminum in Alloy element is adopted to contain the effect that the Zr fining agent can't reach refinement.The refinement that contains aluminum magnesium alloy mainly contains on principle at present: (1) Overheating Treatment method: exactly alloy is heated to the above 150-260K of liquidus line, insulation for some time (the time length of insulation is relevant with types of alloys, melt purity and casting process), be cooled fast to pouring temperature then.This method soaking time is oversize, temperature exceeds or be lower than the temperature of superheat scope all will cause grain coarsening, the conditional request strictness, and the service temperature height of Overheating Treatment causes the oxidization burning loss of magnesium more serious; (2) carbonaceous material facture: this method is by add carbon or carbonaceous compound in magnesium alloy fused mass, as solid paraffin, hexachloroethane, carbonate or carbonaceous gas etc., thereby reach the purpose of crystal grain thinning, but this method need melting under the temperature that is higher than 150 ℃～200 ℃ of liquidus lines, and can produce Cl
2, obnoxious flavour such as HCI, cause environmental pollution; (3) chlorination iron processes:, can obtain the thinning effect similar to Overheating Treatment by in the magnesium alloy fused mass that contains aluminium and manganese, adding iron(ic) chloride.But, reduced the solidity to corrosion of magnesium alloy owing to the existence of impurity element Fe; (4) alloying: when the content of Ce in the magnesium alloy was 0.8%, grain-size can be refine to 25 μ m from 260 μ m, and still, this refinement makes the cost of alloy melting increase; (5) granular graphite or aluminium carbide particle method: granular graphite or aluminium carbide particle have the effect of thinning microstructure, but this particle is poly-partially in the generation of crystal boundary place easily, becomes formation of crack; (6) Zr element method: the Zr element is a kind of extraordinary fining agent of magnesium alloy, but since Zr easily with alloy in the Al element formation compound that reacts, thereby lose the effect of refinement, so can't be applied to contain in the magnesium alloy of Al, range of application is narrow.
Summary of the invention
The present invention is the high and generation Cl of the oxidization burning loss of and magnesium strict for the Overheating Treatment method condition that solves existing magnesium alloy refining method temperature serious, the carbonaceous material facture
2, harmful gas, chlorination iron processes such as the HCI solidity to corrosion, alloying cost height, granular graphite or the aluminium carbide particle method that have reduced magnesium alloy easily produce at the crystal boundary place and gather partially and the narrow problem of Zr element method range of application, and provides a kind of magnesium alloy refiner and preparation method thereof.
A kind of magnesium alloy refiner of the present invention is to be made by 1%～30% calcium metal and 70%～99% primary magnesium ingot by mass percentage.
The preparation method of above-mentioned a kind of magnesium alloy refiner carries out according to the following steps: one, take by weighing 1%～30% calcium metal and 70%～99% primary magnesium ingot by mass percentage; Two, will join by the primary magnesium ingot that step 1 takes by weighing in the smelting furnace, keep 40min～90min after under atmosphere protection, being heated to 730 ℃～750 ℃; Three, will join through the calcium metal that step 1 takes by weighing in the smelting furnace, and stir 15min～30min down at 730 ℃～750 ℃, casting promptly gets magnesium alloy refiner then.
The purity of the described calcium metal of step 1 is 〉=99.5% (quality), and the purity of primary magnesium ingot is 〉=99.95% (quality).
Protection gas described in the step 2 is SF
6: CO
2Volume ratio be 1: 99 SF
6And CO
2Gas mixture or SF
6: N
2Volume ratio be 1: 99 SF
6And N
2Gas mixture.
The allowed band of single impurity element is≤0.1% in the magnesium alloy refiner of the present invention, and the allowed band of all dirt element is≤0.4%, and the impurity in this scope is to the not influence of performance of magnesium alloy refiner.
After joining magnesium alloy refiner of the present invention in the magnesium alloy fused mass, Ca element in the magnesium alloy refiner can be dissolved in the alloy melt fully, after stirring, the Ca element is distributed in the melt equably, in solidifying subsequently, because the solubleness of Ca in α-Mg is very low, therefore, the Ca element mainly is distributed in the solid-liquid interface of solidified front, produces enrichment.The Ca element will reach constitutional supercooling in that the enrichment of the solid-liquid interface of solidifying is poly-, so accelerated the forming core speed of magnesium alloy, on the other hand, the enrichment of Ca element has also hindered the translational speed at solidified front interface, so, reached the purpose of refinement magnesium alloy just because of the enrichment of this Ca element in process of setting.
The adding temperature of magnesium alloy refiner of the present invention is consistent with the smelting temperature of conventional magnesium alloy, does not need Overheating Treatment, has avoided the oxidization burning loss of magnesium.In the use, the element in the magnesium alloy refiner is added in the magnesium alloy fused mass fully, does not produce impurity, gas; Utilize calcium constituent to come the tissue of magnesium alloy is carried out refinement, solidity to corrosion to magnesium alloy does not have influence, raw material in this magnesium alloy refiner is calcium metal and primary magnesium ingot, compare with alloyage, the raw materials cost of calcium metal reduces greatly than cerium, make cost of the present invention relatively low, and magnesium alloy refiner is evenly distributed segregation-free in magnesium alloy; Magnesium alloy refiner of the present invention goes for comprising all magnesium alloy that contain the Al element, has wide range of applications; Calcium constituent in the fining agent can not produce precipitation in fusion process, thinning effect does not exist ageing, and the Ca element not only plays the effect of refinement, and can play the purpose of alloying, improved the mechanical property of magnesium alloy, make to close carefully and improved 9%～27% in refinement back draft intensity, yield strength has improved 25%～32%, and elongation has improved 40%～92%.
Description of drawings
Fig. 1 is the metallographic structure opticmicroscope figure without the AZ31 alloy of refinement of embodiment 13; Fig. 2 is the metallographic structure opticmicroscope figure with the AZ31 alloy after the magnesium alloy refiner refinement of embodiment 13; Fig. 3 is the metallographic structure opticmicroscope figure without the ZK60 magnesium alloy of refinement of embodiment 14; Fig. 4 is the metallographic structure opticmicroscope figure with the ZK60 magnesium alloy after the magnesium alloy refiner refinement of embodiment 14; Fig. 5 is the metallographic structure opticmicroscope figure with the ZK60 magnesium alloy after the magnesium alloy refiner refinement of embodiment 15.
Embodiment
Embodiment one: a kind of magnesium alloy refiner of present embodiment is to be made by 1%～30% calcium metal and 70%～99% primary magnesium ingot by mass percentage.
The adding temperature of the magnesium alloy refiner of present embodiment is consistent with the smelting temperature of conventional magnesium alloy, does not need Overheating Treatment, has avoided the oxidization burning loss of magnesium.In the use, the element in the magnesium alloy refiner is added in the magnesium alloy fused mass fully, does not produce impurity, gas; Utilize calcium constituent to come the tissue of magnesium alloy is carried out refinement, solidity to corrosion to magnesium alloy does not have influence, raw material in this magnesium alloy refiner is calcium metal and primary magnesium ingot, compare with alloyage, the raw materials cost of calcium metal reduces greatly than cerium, make cost of the present invention relatively low, and magnesium alloy refiner is evenly distributed segregation-free in magnesium alloy; Magnesium alloy refiner of the present invention goes for comprising all magnesium alloy that contain the Al element, has wide range of applications; Calcium constituent in the fining agent can not produce precipitation in fusion process, thinning effect does not exist ageing, and the Ca element not only plays the effect of refinement, and can play the purpose of alloying, improved the mechanical property of magnesium alloy, make to close carefully and improved 9%～27% in refinement back draft intensity, yield strength has improved 25%～32%, and elongation has improved 40%～92%.
Embodiment two: what present embodiment and embodiment one were different is: a kind of magnesium alloy refiner is to be made by 5%～25% calcium metal and 75%～95% primary magnesium ingot by mass percentage.
Embodiment three: what present embodiment was different with embodiment one or two is: a kind of magnesium alloy refiner is to be made by 15% calcium metal and 85% primary magnesium ingot by mass percentage.
Embodiment four: the preparation method of a kind of magnesium alloy refiner of present embodiment carries out according to the following steps: one, take by weighing 1%～30% calcium metal and 70%～99% primary magnesium ingot by mass percentage; Two, will join by the primary magnesium ingot that step 1 takes by weighing in the smelting furnace, keep 40min～90min after under atmosphere protection, being heated to 730 ℃～750 ℃; Three, will join through the calcium metal that step 1 takes by weighing in the smelting furnace, and stir 15min～30min down at 730 ℃～750 ℃, casting promptly gets magnesium alloy refiner then.
The magnesium alloy refiner of present embodiment can be made into shapes such as bulk, little ingot shape or wire rod.
The allowed band of single impurity element is≤0.1% in the described magnesium alloy refiner of present embodiment, and the allowed band of all dirt element is≤0.4%, and the impurity in this scope is to the not influence of performance of magnesium alloy refiner.
The adding temperature of the magnesium alloy refiner of present embodiment is consistent with the smelting temperature of conventional magnesium alloy, does not need Overheating Treatment, has avoided the oxidization burning loss of magnesium.In the use, the element in the magnesium alloy refiner is added in the magnesium alloy fused mass fully, does not produce impurity, gas; Utilize calcium constituent to come the tissue of magnesium alloy is carried out refinement, solidity to corrosion to magnesium alloy does not have influence, raw material in this magnesium alloy refiner is calcium metal and primary magnesium ingot, compare with alloyage, the raw materials cost of calcium metal reduces greatly than cerium, make cost of the present invention relatively low, and magnesium alloy refiner is evenly distributed segregation-free in magnesium alloy; Magnesium alloy refiner of the present invention goes for comprising all magnesium alloy that contain the Al element, has wide range of applications; Calcium constituent in the fining agent can not produce precipitation in fusion process, thinning effect does not exist ageing, and the Ca element not only plays the effect of refinement, and can play the purpose of alloying, improved the mechanical property of magnesium alloy, make to close carefully and improved 9%～27% in refinement back draft intensity, yield strength has improved 25%～32%, and elongation has improved 40%～92%.
Embodiment five: what present embodiment and embodiment four were different is: the purity of the described calcium metal of step 1 is 〉=99.5% (quality), and the purity of primary magnesium ingot is 〉=99.95% (quality).Other is identical with embodiment four.
Embodiment six: what present embodiment was different with embodiment four or five is: the protection gas described in the step 2 is SF
6: CO
2Volume ratio be 1: 99 SF
6And CO
2Gas mixture or SF
6: N
2Volume ratio be 1: 99 SF
6And N
2Gas mixture.Other is identical with embodiment four or five.
Embodiment seven: what present embodiment was different with one of embodiment four to six is: take by weighing 5%～25% calcium metal and 75%～95% primary magnesium ingot in the step 1 by mass percentage.Other is identical with one of embodiment four to six.
Embodiment eight: what present embodiment was different with one of embodiment four to seven is: take by weighing 15% calcium metal and 85% primary magnesium ingot in the step 1 by mass percentage.Other is identical with one of embodiment four to seven.
Embodiment nine: what present embodiment was different with one of embodiment four to eight is: keep 50min～80min after being heated to 735 ℃～745 ℃ in the step 2.Other is identical with one of embodiment four to eight.
Embodiment ten: what present embodiment was different with one of embodiment four to nine is: keep 60min after being heated to 740 ℃ in the step 2.Other is identical with one of embodiment four to nine.
Embodiment 11: what present embodiment was different with one of embodiment four to ten is: stir 18min～28min down at 735 ℃～745 ℃ in the step 3.Other is identical with one of embodiment four to ten.
Embodiment 12: what present embodiment was different with one of embodiment four to 11 is: stir 22min down at 740 ℃ in the step 3.Other is identical with one of embodiment four to 11.
Embodiment 13: a kind of magnesium alloy refiner of present embodiment is to be made by 5% calcium metal and 95% primary magnesium ingot by mass percentage.
The preparation method of a kind of magnesium alloy refiner of present embodiment carries out according to the following steps: one, taking by weighing 5% purity by mass percentage is that the calcium metal of 99.9% (quality) and 95% purity are the primary magnesium ingot of 99.95% (quality); Two, will join by the primary magnesium ingot that step 1 takes by weighing in the smelting furnace, keep 60min after under atmosphere protection, being heated to 750 ℃; Three, will join through the calcium metal that step 1 takes by weighing in the smelting furnace, stir 15min down, pour into bulk then, promptly get magnesium alloy refiner at 750 ℃; Protection gas described in the step 2 is SF
6: CO
2Volume ratio be 1: 99 SF
6And CO
2Gas mixture.
The magnesium alloy refiner of the preparation of present embodiment is used for refinement AZ31 magnesium alloy, and the melting of AZ31 magnesium alloy is at 99.5% (volume) CO
2With 0.5% (volume) SF
6Carry out under the hybrid protection atmosphere of forming, melting is carried out on resistance furnace, when smelting temperature is 730 ℃, adds 4% the magnesium alloy refiner that accounts for the melt gross weight, and the gravity metal mold casting is pressed in the qualified back of molten refining, obtains the AZ31 alloy after the refinement.
Preparation sheet sample, the gauge length of test piece is 20mm, and the thickness of test piece is 2mm, and width is 6mm.By standard GB/T228-2002 " metallic substance tensile test at room temperature method " tested for tensile strength, adopting gauge length is the unit elongation of the extensometer mensuration material of 10mm, adopts straight line intercepting method to carry out the mensuration of grain-size by ASTM E112-G6.
Without the metallographic structure opticmicroscope figure of the AZ31 alloy of refinement as shown in Figure 1, as can be seen from Figure 1, the grain-size of AZ31 alloy is 125 μ m before the refinement, and the AZ31 tensile strength of alloys is 172MPa before the refinement, elongation 6%, with the metallographic structure opticmicroscope figure of the AZ31 alloy after the magnesium alloy refiner refinement of present embodiment as shown in Figure 2, as can be seen from Figure 2, grain-size is 84 μ m after the refinement, than having reduced 32.8% before the refinement, and tensile strength of alloys is 188MPa after the refinement, elongation 8.5% is respectively than having increased by 9.3% and 42% before the refinement.
The adding temperature of the magnesium alloy refiner of present embodiment is consistent with the smelting temperature of conventional magnesium alloy, does not need Overheating Treatment, has avoided the oxidization burning loss of magnesium.In the use, the element in the magnesium alloy refiner is added in the magnesium alloy fused mass fully, does not produce impurity, gas; Utilize calcium constituent to come the tissue of magnesium alloy is carried out refinement, solidity to corrosion to magnesium alloy does not have influence, raw material in this magnesium alloy refiner is calcium metal and primary magnesium ingot, compare with alloyage, the raw materials cost of calcium metal reduces greatly than cerium, makes cost of the present invention relatively low, calcium constituent in the fining agent can not produce precipitation in fusion process, thinning effect does not exist ageing, and the Ca element not only plays the effect of refinement, but also can play the mechanical property that improves magnesium alloy.
Embodiment 14: a kind of magnesium alloy refiner of present embodiment is to be made by 10% calcium metal and 90% primary magnesium ingot by mass percentage.
The preparation method of a kind of magnesium alloy refiner of present embodiment carries out according to the following steps: one, taking by weighing 10% purity by mass percentage is that the calcium metal of 99.9% (quality) and 90% purity are the primary magnesium ingot of 99.98% (quality); Two, will join by the primary magnesium ingot that step 1 takes by weighing in the smelting furnace, keep 45min after under atmosphere protection, being heated to 750 ℃; Three, will join through the calcium metal that step 1 takes by weighing in the smelting furnace, stir 20min down, pour into bulk then, promptly get magnesium alloy refiner at 750 ℃; Protection gas described in the step 2 is SF
6: N
2Volume ratio be 1: 99 SF
6And N
2Gas mixture.
The magnesium alloy refiner of the preparation of present embodiment is used for refinement ZK60 magnesium alloy, and the melting of ZK60 magnesium alloy is at 99% (volume) CO
2With 1% (volume) SF
6Carry out under the hybrid protection atmosphere of forming, melting is carried out on resistance furnace, when smelting temperature is 740 ℃, adds 1% the magnesium alloy refiner that accounts for the melt gross weight, and the gravity metal mold casting is pressed in the qualified back of molten refining, and the ZK60 magnesium that obtains after the refinement closes.
Preparation sheet sample, the gauge length of test piece is 20mm, and the thickness of test piece is 2mm, and width is 6mm.By standard GB/T228-2002 " metallic substance tensile test at room temperature method " tested for tensile strength, adopting gauge length is the unit elongation of the extensometer mensuration material of 10mm, adopts straight line intercepting method to carry out the mensuration of grain-size by ASTM E112-G6.
Without the metallographic structure opticmicroscope figure of the ZK60 magnesium alloy of refinement as shown in Figure 3, as can be seen from Figure 3, the grain-size of ZK60 magnesium alloy is 98 μ m before the refinement, and the tensile strength of ZK60 magnesium alloy is 193MPa before the refinement, elongation 6%, with the metallographic structure opticmicroscope figure of the ZK60 magnesium alloy after the magnesium alloy refiner refinement of present embodiment as shown in Figure 4, as can be seen from Figure 4, grain-size is 75 μ m after the refinement, than having reduced 23.4% before the refinement, and tensile strength of alloys is 210MPa after the refinement, elongation 9.5% is respectively than having increased by 8.8% and 58% before the refinement.
The adding temperature of the magnesium alloy refiner of present embodiment is consistent with the smelting temperature of conventional magnesium alloy, does not need Overheating Treatment, has avoided the oxidization burning loss of magnesium.In the use, the element in the magnesium alloy refiner is added in the magnesium alloy fused mass fully, does not produce impurity, gas; Utilize calcium constituent to come the tissue of magnesium alloy is carried out refinement, solidity to corrosion to magnesium alloy does not have influence, raw material in this magnesium alloy refiner is calcium metal and primary magnesium ingot, compare with alloyage, the raw materials cost of calcium metal reduces greatly than cerium, makes cost of the present invention relatively low, calcium constituent in the fining agent can not produce precipitation in fusion process, thinning effect does not exist ageing, and the Ca element not only plays the effect of refinement, but also can play the mechanical property that improves magnesium alloy.
Embodiment 15: a kind of magnesium alloy refiner of present embodiment is to be made by 20% calcium metal and 80% primary magnesium ingot by mass percentage.
The preparation method of a kind of magnesium alloy refiner of present embodiment carries out according to the following steps: one, taking by weighing 20% purity by mass percentage is that the calcium metal of 99.9% (quality) and 80% purity are the primary magnesium ingot of 99.98% (quality); Two, will join by the primary magnesium ingot that step 1 takes by weighing in the smelting furnace, keep 75min after under atmosphere protection, being heated to 750 ℃; Three, will join through the calcium metal that step 1 takes by weighing in the smelting furnace, stir 25min down, pour into bulk then, promptly get magnesium alloy refiner at 750 ℃; Protection gas described in the step 2 is SF
6: CO
2Volume ratio be 1: 99 SF
6And CO
2Gas mixture.
The magnesium alloy refiner of the preparation of present embodiment is used for refinement ZK60 magnesium alloy, and the melting of ZK60 magnesium alloy is at 99% (volume) CO
2With 1% (volume) SF
6Carry out under the hybrid protection atmosphere of forming, melting is carried out on resistance furnace, when smelting temperature is 740 ℃, adds 1% the magnesium alloy refiner that accounts for the melt gross weight, and the gravity metal mold casting is pressed in the qualified back of molten refining, obtains the ZK60 magnesium alloy after the refinement.
Preparation sheet sample, the gauge length of test piece is 20mm, and the thickness of test piece is 2mm, and width is 6mm.By standard GB/T228-2002 " metallic substance tensile test at room temperature method " tested for tensile strength, adopting gauge length is the unit elongation of the extensometer mensuration material of 10mm, adopts straight line intercepting method to carry out the mensuration of grain-size by ASTM E112-G6.
The tensile strength of the ZK60 magnesium alloy of refinement is not 193MPa, elongation 5.8%, with the metallographic structure opticmicroscope figure of the ZK60 magnesium alloy after the magnesium alloy refiner refinement of present embodiment as shown in Figure 5, as can be seen from Figure 5, grain-size is 42 μ m after the refinement, and the grain-size of refinement is not 98 μ m, after the refinement than having reduced 57.1% before the refinement, and the tensile strength of the magnesium alloy after the refinement is 244MPa, elongation 10.6%, the magnesium alloy than not refinement has increased by 26.4% and 82.3% respectively.
The adding temperature of the magnesium alloy refiner of present embodiment is consistent with the smelting temperature of conventional magnesium alloy, does not need Overheating Treatment, has avoided the oxidization burning loss of magnesium.In the use, the element in the magnesium alloy refiner is added in the magnesium alloy fused mass fully, does not produce impurity, gas; Utilize calcium constituent to come the tissue of magnesium alloy is carried out refinement, solidity to corrosion to magnesium alloy does not have influence, raw material in this magnesium alloy refiner is calcium metal and primary magnesium ingot, compare with alloyage, the raw materials cost of calcium metal reduces greatly than cerium, makes cost of the present invention relatively low, calcium constituent in the fining agent can not produce precipitation in fusion process, thinning effect does not exist ageing, and the Ca element not only plays the effect of refinement, but also can play the mechanical property that improves magnesium alloy.
Claims (10)
1. magnesium alloy refiner is characterized in that a kind of magnesium alloy refiner is to be made by 1%～30% calcium metal and 70%～99% primary magnesium ingot by mass percentage.
2. a kind of magnesium alloy refiner according to claim 1 is characterized in that a kind of magnesium alloy refiner is to be made by 5%～25% calcium metal and 75%～95% primary magnesium ingot by mass percentage.
3. a kind of magnesium alloy refiner according to claim 1 is characterized in that a kind of magnesium alloy refiner is to be made by 15% calcium metal and 85% primary magnesium ingot by mass percentage.
4. the preparation method of a kind of magnesium alloy refiner as claimed in claim 1 is characterized in that a kind of preparation method of magnesium alloy refiner carries out according to the following steps: one, take by weighing 1%～30% calcium metal and 70%～99% primary magnesium ingot by mass percentage; Two, will join by the primary magnesium ingot that step 1 takes by weighing in the smelting furnace, keep 40min～90min after under atmosphere protection, being heated to 730 ℃～750 ℃; Three, will join through the calcium metal that step 1 takes by weighing in the smelting furnace, and stir 15min～30min down at 730 ℃～750 ℃, casting promptly gets magnesium alloy refiner then.
5. the preparation method of a kind of magnesium alloy refiner according to claim 4, the purity that it is characterized in that the described calcium metal of step 1 is 〉=99.5% (quality), the purity of primary magnesium ingot is 〉=99.95% (quality).
6. according to the preparation method of claim 4 or 5 described a kind of magnesium alloy refiners, it is characterized in that the protection gas described in the step 2 is SF
6: CO
2Volume ratio be 1: 99 SF
6And CO
2Gas mixture or SF
6: N
2Volume ratio be 1: 99 SF
6And N
2Gas mixture.
7. the preparation method of a kind of magnesium alloy refiner according to claim 6 is characterized in that taking by weighing by mass percentage in the step 1 5%～25% calcium metal and 75%～95% primary magnesium ingot.
8. according to the preparation method of claim 4 or 5 described a kind of magnesium alloy refiners, keep 50min～80min after it is characterized in that being heated in the step 2 735 ℃～745 ℃.
9. the preparation method of a kind of magnesium alloy refiner according to claim 8 is characterized in that stirring 18min～28min down at 735 ℃～745 ℃ in the step 3.
10. the preparation method of a kind of magnesium alloy refiner according to claim 8 is characterized in that stirring 22min down at 740 ℃ in the step 3.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146529A (en) * | 2011-03-15 | 2011-08-10 | 新星化工冶金材料(深圳)有限公司 | Method for preparing aluminum-zirconium-carbon intermediate alloy |
| WO2012027990A1 (en) * | 2011-03-15 | 2012-03-08 | 新星化工冶金材料(深圳)有限公司 | Grain refiner for magnesium and magnesium alloy and preparation method thereof |
| WO2012027989A1 (en) * | 2011-03-15 | 2012-03-08 | 新星化工冶金材料(深圳)有限公司 | Application of aluminium-zirconium-carbon master alloy in deforming process of magnesium or magnesium alloy |
| CN102676898A (en) * | 2012-05-18 | 2012-09-19 | 东莞宜安科技股份有限公司 | Magnesium alloy modifier and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101135013A (en) * | 2007-10-11 | 2008-03-05 | 武汉理工大学 | Magnesium and magnesium alloy composite grain refiner and method for making same |
| CN101230433A (en) * | 2008-02-22 | 2008-07-30 | 南京信息工程大学 | Metal refiner for magnesium alloy and preparation method thereof |
-
2010
- 2010-04-22 CN CN2010101527555A patent/CN101812607B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101135013A (en) * | 2007-10-11 | 2008-03-05 | 武汉理工大学 | Magnesium and magnesium alloy composite grain refiner and method for making same |
| CN101230433A (en) * | 2008-02-22 | 2008-07-30 | 南京信息工程大学 | Metal refiner for magnesium alloy and preparation method thereof |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012027990A1 (en) * | 2011-03-15 | 2012-03-08 | 新星化工冶金材料(深圳)有限公司 | Grain refiner for magnesium and magnesium alloy and preparation method thereof |
| WO2012027989A1 (en) * | 2011-03-15 | 2012-03-08 | 新星化工冶金材料(深圳)有限公司 | Application of aluminium-zirconium-carbon master alloy in deforming process of magnesium or magnesium alloy |
| WO2012027992A1 (en) * | 2011-03-15 | 2012-03-08 | 新星化工冶金材料(深圳)有限公司 | Preparation method of al-zr-c master alloy |
| CN102146529A (en) * | 2011-03-15 | 2011-08-10 | 新星化工冶金材料(深圳)有限公司 | Method for preparing aluminum-zirconium-carbon intermediate alloy |
| GB2494354A (en) * | 2011-03-15 | 2013-03-06 | Shenzhen Sunxing Light Alloys Materials Co Ltd | Preparation method of Al-Zr-C master alloy |
| GB2494352A (en) * | 2011-03-15 | 2013-03-06 | Shenzhen Sunxing Light Alloys Materials Co Ltd | Grain refiner for magnesium and magnesium alloy and preparation method thereof |
| GB2494593A (en) * | 2011-03-15 | 2013-03-13 | Shenzhen Sunxing Light Alloys Materials Co Ltd | Application of aluminium-zirconium-carbon master alloy in deforming process of magnesium or magnesium alloy |
| GB2494354B (en) * | 2011-03-15 | 2013-05-15 | Shenzhen Sunxing Light Alloys Materials Co Ltd | Method for producing aluminium-zirconium-carbon intermediate alloy |
| GB2494352B (en) * | 2011-03-15 | 2013-10-30 | Shenzhen Sunxing Light Alloys Materials Co Ltd | Grain refiner for magnesium and magnesium alloys and method for producing the same |
| GB2494593B (en) * | 2011-03-15 | 2013-10-30 | Shenzhen Sunxing Light Alloys Materials Co Ltd | Use of aluminium-zirconium-carbon intermediate alloy in wrought processing of magnesium or magnesium alloys |
| CN103502494A (en) * | 2011-03-30 | 2014-01-08 | 韩国生产技术研究院 | Mg-al-ca-based master alloy for mg alloys, and a production method therefor |
| CN102676898A (en) * | 2012-05-18 | 2012-09-19 | 东莞宜安科技股份有限公司 | Magnesium alloy modifier and preparation method thereof |
| CN106756180B (en) * | 2016-12-01 | 2018-06-08 | 安徽工业大学 | A kind of calcium/magnesia grain refiner and its preparation method and application |
| CN107398548A (en) * | 2017-07-28 | 2017-11-28 | 河南明镁镁业科技有限公司 | A kind of grain refiner and its preparation and application method of significantly Refining Mg Alloy tissue |
| CN109332679A (en) * | 2018-11-29 | 2019-02-15 | 西安建筑科技大学 | A kind of 3D printing metal powder of crystal grain refinement and preparation method thereof |
| CN109332679B (en) * | 2018-11-29 | 2020-11-06 | 西安建筑科技大学 | Grain-refined metal powder for 3D printing and preparation method thereof |
| CN109623120A (en) * | 2019-01-25 | 2019-04-16 | 上海盼研机器人科技有限公司 | A kind of resistance spot welding of magnesium alloy method |
| CN113500174A (en) * | 2021-06-25 | 2021-10-15 | 新程汽车工业有限公司 | Ultra-high strength lightweight fixed support |
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