EP2705171A1 - Verfahren zur raffination und gefügemodifikation von almgsi- legierungen - Google Patents
Verfahren zur raffination und gefügemodifikation von almgsi- legierungenInfo
- Publication number
- EP2705171A1 EP2705171A1 EP12722272.7A EP12722272A EP2705171A1 EP 2705171 A1 EP2705171 A1 EP 2705171A1 EP 12722272 A EP12722272 A EP 12722272A EP 2705171 A1 EP2705171 A1 EP 2705171A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alloys
- less
- refining
- phosphorus
- alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000007670 refining Methods 0.000 title claims abstract description 9
- 230000004048 modification Effects 0.000 title claims abstract description 6
- 238000012986 modification Methods 0.000 title claims abstract description 6
- 229910021365 Al-Mg-Si alloy Inorganic materials 0.000 title abstract 3
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 39
- 239000000956 alloy Substances 0.000 claims abstract description 39
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 15
- 239000011574 phosphorus Substances 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 10
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 10
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 8
- 238000007528 sand casting Methods 0.000 claims abstract description 8
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 8
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 7
- 229910000676 Si alloy Inorganic materials 0.000 claims abstract description 3
- 230000000813 microbial effect Effects 0.000 claims description 3
- 239000011833 salt mixture Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 9
- 239000011777 magnesium Substances 0.000 description 8
- 239000013078 crystal Substances 0.000 description 7
- 238000004512 die casting Methods 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 238000005266 casting Methods 0.000 description 6
- 230000005496 eutectics Effects 0.000 description 6
- 239000011575 calcium Substances 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 239000000155 melt Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 229910019752 Mg2Si Inorganic materials 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910018125 Al-Si Inorganic materials 0.000 description 2
- 229910018520 Al—Si Inorganic materials 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002667 nucleating agent Substances 0.000 description 2
- 230000006911 nucleation Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 241001136782 Alca Species 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- -1 gCl2 Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000001616 ion spectroscopy Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 238000002076 thermal analysis method Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
Definitions
- the present invention relates to a process for refining and microbial modification of AlMgSi alloys.
- Alloys of the AlMgSi type are preferably used in die-casting processes, and they are particularly advantageous for producing thin-walled components.
- a significant deterioration of the elongation at break with increasing wall thickness recorded.
- AlMg-Si-type AlMg-Si type workpieces produced in mold or sand casting have poor mechanical properties, particularly with respect to elongation at break.
- an alloy having the general composition: 4.5-6.5 wt.% Mg, 1.5 wt.% Si, 0.45 wt.% Mn and Al is used as the remaining constituent in mold or sand casting
- the elongation at break [A5] is 3% for a workpiece with 20 mm wall thickness made by sand casting, and also 3% for a workpiece with 16 mm wall thickness made with chill casting. This results in comparable poor elongation at break values as in the die casting process.
- grain refining treatment is not required in die casting and may even be detrimental.
- the solidification conditions during die casting in particular the high cooling rate, already sufficiently counteract grain growth.
- a treatment with halogen-containing melting treatment salts, such as gCl2, or so-called active gases, such as chlorine gas with nitrogen or argon in various concentrations to achieve a fine microstructure and thus good mechanical properties known.
- active gases such as chlorine gas with nitrogen or argon
- Hypereutectic AlSiMg alloys are those having a Si content of slightly or considerably more than 12% Si. At a content of 12% Si is exclusively a eutectic in the form of a fine-grained Al-Si mixed crystal.
- coarse-grained Si crystals first form on cooling of the alloy melt, which are subsequently embedded in the fine-grained solid-solution structure. Worsen by the coarse Si crystals the mechanical properties. Addition of AIP causes these Si crystals to be refined because AIP acts as a nucleating agent for Si crystals and therefore they are present in the structure obtained with a significantly reduced dimension, which results in an improvement in the mechanical properties.
- the present invention provides a process for refining AlMgSi alloys for mold or sand casting, which AlMgSi alloys have the general composition 5.0-10.0 wt .-% Mg; 1.0-5.0 wt% Si; 0.001-1.0 wt% Mn, 0.01-0.2 wt% Ti, less than 0.001 wt% Ca, less than 0.001 wt% Na, and less than 0.001 wt% Sr and as the radical AI, and wherein the alloy melt is added to phosphorus in an amount range of from 0.01 to 0.06% by weight, based on the total mass of the alloy.
- These phases are germinal sites for the eutectic Mg2Si; if they are absent, the germinal sites are absent at the host level and the Mg2Si phase is formed by supercooling. Since nucleation is necessary for each particle, growth is extremely slow compared to unmodified alloys. The nucleation is self-sufficient or on the aluminum, which is also a poor nucleating agent and thereby minimizes the growth rate. In thermal analysis, the peak of the ternary eutectic disappears or decreases with increasing phosphorus content.
- the addition of the phosphor can take place in the form of a phosphor master alloy or phosphorus-releasing salt mixtures.
- Preferred phosphor master alloys which can be used in the present invention include CuP8, AICuP, AlFeP, and FeP master alloys.
- the production according to the invention of an alloy having improved mechanical properties for mold or sand casting takes place according to the following scheme: Melting of pure aluminum or suitable secondary aluminum in sufficient quality (eg of AlMg sheets) Alloying of silicon, magnesium, titanium by adding pure metals (silicon, magnesium, titanium) or so-called master alloys of eg 90% aluminum and 10% titanium
- cleaning salts e.g., MgCl 2
- active gas mixtures e.g., Ar: Cl 2 98: 2
- inert gases e.g., N 2 or Ar
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Continuous Casting (AREA)
- Mold Materials And Core Materials (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA615/2011A AT511397B1 (de) | 2011-05-03 | 2011-05-03 | Verfahren zur raffination und gefügemodifikation von aimgsi-legierungen |
| PCT/AT2012/000124 WO2012149589A1 (de) | 2011-05-03 | 2012-05-03 | Verfahren zur raffination und gefügemodifikation von almgsi- legierungen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2705171A1 true EP2705171A1 (de) | 2014-03-12 |
| EP2705171B1 EP2705171B1 (de) | 2015-08-26 |
Family
ID=46146481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12722272.7A Revoked EP2705171B1 (de) | 2011-05-03 | 2012-05-03 | Verfahren zur raffination und gefügemodifikation von almgsi- legierungen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9279170B2 (de) |
| EP (1) | EP2705171B1 (de) |
| AT (1) | AT511397B1 (de) |
| CA (1) | CA2866094A1 (de) |
| MX (1) | MX2013012681A (de) |
| WO (1) | WO2012149589A1 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101565025B1 (ko) * | 2013-11-27 | 2015-11-02 | 현대자동차주식회사 | 고내열성 저밀도 알루미늄 합금 |
| PL3247812T3 (pl) | 2015-03-10 | 2019-08-30 | Cms Jant Ve Makine Sanayi Anonim Sirketi | Sposób rozdrabniania ziarna dla stopów aluminium |
| CN104988346B (zh) * | 2015-07-08 | 2017-03-29 | 龙口市丛林铝材有限公司 | 一种轨道车辆车体用铝合金的制备方法 |
| JP2017210653A (ja) * | 2016-05-26 | 2017-11-30 | 日本軽金属株式会社 | アルミニウム合金および鋳物 |
| MX2020011679A (es) * | 2018-05-07 | 2020-12-10 | Alcoa Usa Corp | Aleaciones de colada de al-mg-si-mn-fe. |
| CN115323228A (zh) * | 2022-08-19 | 2022-11-11 | 光智科技股份有限公司 | 一种划片刀铝飞盘用新型铝合金的制造方法 |
| CN117025988B (zh) * | 2023-08-16 | 2025-11-21 | 广西平果博导铝镁线缆有限公司 | 一种改进镁铝合金线材高导电性的处理方法 |
| CN119663076A (zh) * | 2024-12-19 | 2025-03-21 | 上海交通大学 | 一种高强韧耐磨过共晶Al-Mg2Si合金及其制备方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1608165C2 (de) * | 1967-12-01 | 1981-10-22 | Honsel-Werke Ag, 5778 Meschede | Verwendung von AlMgSi-Guß-Legierungen für thermisch wechselbeanspruchte Zylinderköpfe |
| NZ234849A (en) * | 1989-08-09 | 1991-10-25 | Comalco Ltd | Hypereutectic aluminium alloys containing silicon and minor amounts of other alloying elements |
| DE4015741A1 (de) | 1990-05-16 | 1991-11-21 | Metallgesellschaft Ag | Verfahren zur herstellung von mg(pfeil abwaerts)2(pfeil abwaerts)si enthaltenden legierungen |
| ATE201457T1 (de) | 1994-11-15 | 2001-06-15 | Rheinfelden Aluminium Gmbh | Verwendung einer aluminiumlegierung zum druckgiessen |
| US6669792B2 (en) * | 1998-09-08 | 2003-12-30 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Process for producing a cast article from a hypereutectic aluminum-silicon alloy |
| ATE437972T1 (de) * | 2003-01-23 | 2009-08-15 | Rheinfelden Aluminium Gmbh | Druckgusslegierung aus aluminiumlegierung |
| ATE516379T1 (de) * | 2004-06-29 | 2011-07-15 | Rheinfelden Aluminium Gmbh | Aluminium-druckgusslegierung |
| AT501867B1 (de) * | 2005-05-19 | 2009-07-15 | Aluminium Lend Gmbh & Co Kg | Aluminiumlegierung |
| DE502006000145D1 (de) * | 2005-08-22 | 2007-11-29 | Rheinfelden Aluminium Gmbh | Warmfeste Aluminiumlegierung |
| KR101534864B1 (ko) * | 2009-06-30 | 2015-07-08 | 현대자동차주식회사 | 차량용 실린더라이너의 제조방법 |
-
2011
- 2011-05-03 AT ATA615/2011A patent/AT511397B1/de not_active IP Right Cessation
-
2012
- 2012-05-03 CA CA2866094A patent/CA2866094A1/en not_active Abandoned
- 2012-05-03 WO PCT/AT2012/000124 patent/WO2012149589A1/de not_active Ceased
- 2012-05-03 US US14/114,989 patent/US9279170B2/en not_active Expired - Fee Related
- 2012-05-03 EP EP12722272.7A patent/EP2705171B1/de not_active Revoked
- 2012-05-03 MX MX2013012681A patent/MX2013012681A/es not_active Application Discontinuation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012149589A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| MX2013012681A (es) | 2014-10-17 |
| AT511397A1 (de) | 2012-11-15 |
| WO2012149589A1 (de) | 2012-11-08 |
| AT511397B1 (de) | 2013-02-15 |
| US9279170B2 (en) | 2016-03-08 |
| US20140290437A1 (en) | 2014-10-02 |
| CA2866094A1 (en) | 2012-11-08 |
| EP2705171B1 (de) | 2015-08-26 |
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