US3466170A - Process for improving grain structure of aluminum silicon alloys - Google Patents
Process for improving grain structure of aluminum silicon alloys Download PDFInfo
- Publication number
- US3466170A US3466170A US608754A US3466170DA US3466170A US 3466170 A US3466170 A US 3466170A US 608754 A US608754 A US 608754A US 3466170D A US3466170D A US 3466170DA US 3466170 A US3466170 A US 3466170A
- Authority
- US
- United States
- Prior art keywords
- alloys
- alloy
- percent
- addition
- modification
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title description 20
- 230000008569 process Effects 0.000 title description 18
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 title description 5
- 229910000676 Si alloy Inorganic materials 0.000 title description 4
- 229910021364 Al-Si alloy Inorganic materials 0.000 description 48
- 229910045601 alloy Inorganic materials 0.000 description 28
- 239000000956 alloy Substances 0.000 description 28
- 230000004048 modification Effects 0.000 description 21
- 238000012986 modification Methods 0.000 description 21
- 230000000694 effects Effects 0.000 description 20
- 239000011777 magnesium Substances 0.000 description 17
- 229910052712 strontium Inorganic materials 0.000 description 16
- 238000005266 casting Methods 0.000 description 15
- 239000000155 melt Substances 0.000 description 15
- 238000007792 addition Methods 0.000 description 14
- 239000011575 calcium Substances 0.000 description 13
- 229910052749 magnesium Inorganic materials 0.000 description 12
- 229910052791 calcium Inorganic materials 0.000 description 11
- 239000011734 sodium Substances 0.000 description 11
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 10
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 9
- 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 9
- 229910052708 sodium Inorganic materials 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 229910052790 beryllium Inorganic materials 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000011701 zinc Substances 0.000 description 7
- 229910052788 barium Inorganic materials 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052725 zinc Inorganic materials 0.000 description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 4
- 150000001342 alkaline earth metals Chemical class 0.000 description 4
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 230000005496 eutectics Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000005923 long-lasting effect Effects 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229910018125 Al-Si Inorganic materials 0.000 description 2
- 229910018520 Al—Si Inorganic materials 0.000 description 2
- 229910000600 Ba alloy Inorganic materials 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 241000282887 Suidae Species 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000012629 purifying agent Substances 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 102000020897 Formins Human genes 0.000 description 1
- 108091022623 Formins Proteins 0.000 description 1
- 229910008048 Si-S Inorganic materials 0.000 description 1
- 229910006336 Si—S Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910001278 Sr alloy Inorganic materials 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000003483 aging Methods 0.000 description 1
- 159000000009 barium salts Chemical class 0.000 description 1
- VQLYBLABXAHUDN-UHFFFAOYSA-N bis(4-fluorophenyl)-methyl-(1,2,4-triazol-1-ylmethyl)silane;methyl n-(1h-benzimidazol-2-yl)carbamate Chemical compound C1=CC=C2NC(NC(=O)OC)=NC2=C1.C=1C=C(F)C=CC=1[Si](C=1C=CC(F)=CC=1)(C)CN1C=NC=N1 VQLYBLABXAHUDN-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- NRUQNUIWEUZVLI-UHFFFAOYSA-O diethanolammonium nitrate Chemical compound [O-][N+]([O-])=O.OCC[NH2+]CCO NRUQNUIWEUZVLI-UHFFFAOYSA-O 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- -1 halogen salts Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011833 salt mixture Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- 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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
Definitions
- Al-Si alloys which have a small strontium content and good technological properties have become known as materials for the construction of highly stressed pistons and cylinder heads.
- Al-Si alloy melts which have been modified with calcium do exhibit a modification effect, which is less than that attained with sodium but of longer duration.
- Al-Si alloys which have been modified with calcium have very serious drawbacks.
- the calcium addition promotes the tendency of the eutectic Al-Si alloys to oxidize to a great degree and the alloys which have been treated with calcium have an unattractive appearance because of their dirty gray surface color (normally treated Al-Si alloys exhibit a metallic lustre) and in addition exhibit a most undesirable oxide skin formation near the gates of castings which in foundry practice is called elephant skin.
- the decisive disadvantage of calcium modified Al-Si alloys is to be seen in that only very rapidly solidified cast parts, for instance, in chill molded castings with a wall thickness of 3 mm. exhibit a pseudo modified structure whereas a lamellar structure occurs at locations of local overheating. The slower the solidification takes place the greater the occurrence of zones of lamellar structure which results in the increased occurrence of shrinkage faults which are typical for lamellar structures. These shrinkage faults are extremely disadvantageous and cannot be avoided by the usual supply measures.
- Al-Si alloy melts which have been modified with calciurn, the modification effects are retained with one remelting procedure, but here again the oxidic influences are increased.
- the invention therefore relates to a process achieving a long lasting modification effect in Al-Si alloys by the introduction of an alkaline earth metal in a small quantity into Al-Si alloy melts.
- this is effected by adding strontium and barium individually or in combination in a quantity of 0.001 to 2.0 wt. percent, preferably, 0.05 to 0.2 wt. percent, to Al-Si alloy melts with 5 to 14 wt. percent of Si and if desired contents of Mg and/or Zn/or Cu and the remainder Al and in addition may contain the usual impurities.
- the effect of the Sr and/or Ba addition according to the invention can be assisted by the addition of Be in a quantity of 0.001 to 2.0 wt. percent, preferably, 0.05 to 0.2 wt. percent.
- the beryllium addition can be simultaneous with or before or after the addition of the Sr and/ or Ba. Whereas beryllium by itself has no modification effect in Al-Si aloys nor has a noticeable or noteworthy effect on the oxidation of Sr and Ba free Al-Si alloys, the simultaneous presence of Be and Sr and/or Ba provides a synergistic effect. The oxidation of Sr is hindered by Be so that no Sr is lost in the melt and the modification effect is maintained for a still longer period of time.
- the process according to the invention has a number of advantages.
- the modification elfect achieved with Sr and/or Ba, if desired, in conjunction with Be, is retained over a long period of time.
- the effect for instance is retained for at least 2 hours and up to 10 hours and in some instances can be retained beyond this range depending upon the quantity of the addition and the temperature at which the molten Al-Si alloys are maintained. It is possible thereby to process large charges of Al-Si alloys either continuously or discontinuously without the necessity of interrupting the processing of the charge to permit further additions of modifying agents.
- Al-Si alloys which have been treated according to the invention can, with especial advantage, also be subjected to degasifying agents or other smelt purifying agents for the production of pore free castings, as such Al-Si alloy melts can be treated with inert or reactive gases for the purpose of eliminating a harmful gas content without the fine grained nature of the alloy being lost on casting.
- Al-Si alloys which have been treated according to the invention are especially well suited for use as construction materials for the production of highly stressed parts which require a high elongation, for example, parts which have an elongation over 10%, a tensile strength of over 19 kg./mm. and a yield point of over 9 kg./mm.
- Al-Si alloys treated according to the invention can also be used in the construction of parts requiring a high tensile strength and high yield point and must have a tensile strength of over 36 kg./mm. a yield point of 32 kg./mrn. with an elongation of 3%.
- Al-Si alloys such as, for example, one of 7 wt.
- the Al-Si alloys treated according to the invention especially when they have been subjected to age hardening, have good further processing properties. They therefore are suited for parts which must be subjected to a fine finishing operation involving a shaving removal action, such as, for example, valve housings and armature parts, the valve seats of which must exhibit a smooth surface.
- Tablets consisting of a mixture of 67% SrCO and 33% Mg powder were introduced into 8.5 kg. of a melt 5 of an Al-Si alloy containing 12% Si at 700 C.
- the strontium content of the mixture introduced was 0.3%.
- Samples cast at 720 C. after the treated melt had been held for 4 hours at 720 C. exhibited a very good modified structure.
- Example 3 In order to ascertain the flow qualities and Al-Si alloy with 9.7% Si and the usual impurities was prepared. Three samples of the same quantity were cast into a special mold according to Ph. Schneider at 720 C. and the length of the spiral of the alloy cast measured.
- the first sample which was given no modification treatment, resulted in a spiral casting 103 cm. long.
- the second sample which was treated with an A1 prealloy containing 5% of strontium to provide a 0.1% content in the melt resulted in a spiral casting 104 cm. long.
- the third sample which was treated with a usual commercial Na modification salt resulted in a spiral casting 81 cm. long.
- Example 4 Tensile Yield Brinell strength, point, Elongation, hardness, kg/mm. lrgJmm. percent kgJmmfl Sand mold 25. 8 24. 0.5 106 Chill mold 30.6 25.4 3.4 107
- Example 5 0.10% metallic strontium were alloyed with an alloy of the composition Percent Zn 9.7 Mg 0.36 Al Remainder at 760 C. The molten alloy was held at this temperature for 4 hours and was then cast in chill molds. After 12 days cold hardening the rods thus obtained had the following mechanical properties Tensile strength "kg/mm? 30.6
- Example 6 0.10% metallic strontium were alloyed with an alloy of the composition Percent Si 8.6
- the rods were free of oxide skins.
- a process for attaining a long lasting modification effect in aluminum silicon alloy-s comprising forming a melt containing aluminum and from 5 to 14 wt. percent silicon, and adding to said melt strontium or barium salts mixed with a finely divided reducing metal selected from the group consisting of aluminum and magnesium.
- strontium or barium comprising from 0.001 to 2.0 wt. percent.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM67990A DE1255928B (de) | 1966-01-13 | 1966-01-13 | Verfahren zur Erzielung eines langanhaltenden Veredelungseffektes in Aluminium-Silicium-Legierungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3466170A true US3466170A (en) | 1969-09-09 |
Family
ID=7312418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US608754A Expired - Lifetime US3466170A (en) | 1966-01-13 | 1967-01-12 | Process for improving grain structure of aluminum silicon alloys |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3466170A (en, 2012) |
| BE (1) | BE692488A (en, 2012) |
| DE (1) | DE1255928B (en, 2012) |
| FR (1) | FR1507664A (en, 2012) |
| GB (1) | GB1169104A (en, 2012) |
| LU (1) | LU52759A1 (en, 2012) |
| NL (1) | NL6618414A (en, 2012) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3811177A (en) * | 1969-12-15 | 1974-05-21 | Vaw Ver Aluminium Werke Ag | Process for brazing workpieces of aluminum containing material |
| US3853547A (en) * | 1973-05-25 | 1974-12-10 | Reynolds Metals Co | Brazing materials |
| DE2625939A1 (de) * | 1975-06-11 | 1976-12-23 | Kawecki Berylco Ind | Strontiumhaltige grundzusammensetzung zur beigabe in eutektische und untereutektische silizium-aluminium-gusslegierungen |
| DE2719129A1 (de) * | 1977-01-28 | 1978-08-10 | Kawecki Berylco Ind | Strontiumhaltige grundzusammensetzung zur beigabe in eutektische und untereutektische silizium-aluminium- gusslegierungen |
| US4185999A (en) * | 1978-05-31 | 1980-01-29 | Union Carbide Corporation | Barium-strontium-silicon-aluminum master alloy |
| US4211827A (en) * | 1979-03-15 | 1980-07-08 | Swiss Aluminium Ltd. | Al-Si-Sn Alloy clad composite |
| US4241148A (en) * | 1969-12-15 | 1980-12-23 | Vereinigte Aluminium-Werke Aktiengesellschaft | Composite aluminum-containing workpieces |
| US4394348A (en) * | 1979-10-15 | 1983-07-19 | Interox Chemicals Ltd. | Process for the preparation of aluminium alloys |
| JPS6263640A (ja) * | 1986-09-27 | 1987-03-20 | Japan Metals & Chem Co Ltd | Ａｌ−Ｓｉ系合金改質用Ｓｒ−Ａｌ母合金 |
| US4899800A (en) * | 1987-10-15 | 1990-02-13 | Alcan International Limited | Metal matrix composite with coated reinforcing preform |
| US5837070A (en) * | 1994-06-13 | 1998-11-17 | Pechiney Rhenalu | Aluminum-silicon alloy sheet for use in mechanical, aircraft and spacecraft construction |
| US5882443A (en) * | 1996-06-28 | 1999-03-16 | Timminco Limited | Strontium-aluminum intermetallic alloy granules |
| JP3112452B2 (ja) | 1998-06-08 | 2000-11-27 | ケイビー・アロイズ・インコーポレイテッド | 母合金、共晶及び亜共晶のアルミニウム−珪素鋳造合金の顕微鏡組織改質法及び母合金の製法 |
| US6210460B1 (en) | 1997-06-27 | 2001-04-03 | Timminco Limited | Strontium-aluminum intermetallic alloy granules |
| FR2808536A1 (fr) * | 2000-05-08 | 2001-11-09 | Kyusyu Mitsui Aluminum Co Ltd | Procede de production d'une billette semi-fondue en alliage d'aluminium pour une utilisation comme unite de transport |
| EP1645647A1 (de) * | 2004-10-08 | 2006-04-12 | Trimet Aluminium AG | Kaltaushärtende Aluminiumgusslegierung und Verfahren zur Herstellung eines Aluminiumgussteils |
| US20070243097A1 (en) * | 2004-06-25 | 2007-10-18 | Emmanuelle Sarrazin | Process for Fabrication of Products Made of an Aluminium Alloy With High Toughness and High Fatigue Resistance |
| WO2009081157A1 (en) * | 2007-12-24 | 2009-07-02 | Foseco International Limited | Improved modifying flux for molten aluminium |
| CN107815560A (zh) * | 2017-10-11 | 2018-03-20 | 徐长勇 | 一种高质量合金铝棒制备工艺 |
| CN109722555A (zh) * | 2019-01-09 | 2019-05-07 | 北京科技大学广州新材料研究院 | 一种铸造铝合金晶粒细化变质方法 |
| CN114096690A (zh) * | 2019-07-08 | 2022-02-25 | Lkr轻金属能力中心兰斯霍芬有限责任公司 | 具有精细尺度共晶结构，特别是纳米共晶结构的合金以及这种合金的生产 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0039153B1 (en) * | 1980-04-29 | 1984-10-24 | Marston Palmer Ltd. | A sheet of foil, clad sheet of aluminium and method of brazing using a strontium containing brazing alloy |
| SE8107535L (sv) * | 1980-12-23 | 1982-06-24 | Aluminum Co Of America | Aluminiumlegering samt forfarande for dess framstellning |
| JPS6274043A (ja) * | 1985-09-27 | 1987-04-04 | Ube Ind Ltd | 加圧鋳造用高力アルミニウム合金 |
| EP0312294A1 (en) * | 1987-10-14 | 1989-04-19 | Alcan International Limited | Modification of aluminium-silicon alloys in metal matrix composites |
| EP0365365B1 (en) * | 1988-10-21 | 1995-05-10 | Honda Giken Kogyo Kabushiki Kaisha | Silicon carbide-reinforced light alloy composite material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1657389A (en) * | 1928-01-24 | Alfbed geobge coopeb gwyeb and henby wilfbed lewis phillips | ||
| US2013926A (en) * | 1930-08-23 | 1935-09-10 | Pacz Aladar | Modification of aluminum, aluminum alloys, and alloys containing aluminum |
| US3128176A (en) * | 1961-06-14 | 1964-04-07 | Martin Wayne | Aluminum silicon casting alloys |
| US3199979A (en) * | 1961-10-27 | 1965-08-10 | William F Jobbins Inc | Aluminum base casting alloys and method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19324C (de) * | ch. schröder in Frankfurt a. M | Zeichenapparat | ||
| DE459408C (de) * | 1921-01-29 | 1928-05-03 | Aladar Pacz | Verfahren zur Veredelung von Aluminium-Silicium-Legierungen |
| DE496856C (de) * | 1928-03-17 | 1930-04-29 | Metallgesellschaft Ag | Aluminumlegierungen |
| FR723418A (fr) * | 1930-10-03 | 1932-04-08 | Anciens Ets Skoda | Alliages d'aluminium pour pistons |
| AT136265B (de) * | 1930-10-03 | 1934-01-25 | Vormals Skodawerke Ag | Aluminium-Silizium-Legierungen für Kolben und Zylinder von Motoren. |
| AT197586B (de) * | 1956-06-04 | 1958-05-10 | Metallgesellschaft Ag | Verfahren zur Verbesserung der Natriumveredelung von eutektischen oder schwach untereutektischen Aluminium-Silizium-Gußlegierungen |
-
1966
- 1966-01-13 DE DEM67990A patent/DE1255928B/de active Pending
- 1966-12-30 NL NL6618414A patent/NL6618414A/xx unknown
-
1967
- 1967-01-06 LU LU52759D patent/LU52759A1/xx unknown
- 1967-01-09 FR FR90404A patent/FR1507664A/fr not_active Expired
- 1967-01-11 BE BE692488D patent/BE692488A/xx unknown
- 1967-01-11 GB GB0644/67A patent/GB1169104A/en not_active Expired
- 1967-01-12 US US608754A patent/US3466170A/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1657389A (en) * | 1928-01-24 | Alfbed geobge coopeb gwyeb and henby wilfbed lewis phillips | ||
| US2013926A (en) * | 1930-08-23 | 1935-09-10 | Pacz Aladar | Modification of aluminum, aluminum alloys, and alloys containing aluminum |
| US3128176A (en) * | 1961-06-14 | 1964-04-07 | Martin Wayne | Aluminum silicon casting alloys |
| US3199979A (en) * | 1961-10-27 | 1965-08-10 | William F Jobbins Inc | Aluminum base casting alloys and method |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3811177A (en) * | 1969-12-15 | 1974-05-21 | Vaw Ver Aluminium Werke Ag | Process for brazing workpieces of aluminum containing material |
| US4241148A (en) * | 1969-12-15 | 1980-12-23 | Vereinigte Aluminium-Werke Aktiengesellschaft | Composite aluminum-containing workpieces |
| US3853547A (en) * | 1973-05-25 | 1974-12-10 | Reynolds Metals Co | Brazing materials |
| DE2625939A1 (de) * | 1975-06-11 | 1976-12-23 | Kawecki Berylco Ind | Strontiumhaltige grundzusammensetzung zur beigabe in eutektische und untereutektische silizium-aluminium-gusslegierungen |
| FR2314261A1 (fr) * | 1975-06-11 | 1977-01-07 | Kawecki Berylco Ind | Procede et composition mere destines a modifier la composition eutectique d'alliages d'aluminium et de silicium |
| US4108646A (en) * | 1975-06-11 | 1978-08-22 | Kawecki Berylco Industries, Inc. | Strontium-bearing master composition for addition to eutectic and hypo-eutectic silicon-aluminum casting alloys |
| DE2719129A1 (de) * | 1977-01-28 | 1978-08-10 | Kawecki Berylco Ind | Strontiumhaltige grundzusammensetzung zur beigabe in eutektische und untereutektische silizium-aluminium- gusslegierungen |
| US4185999A (en) * | 1978-05-31 | 1980-01-29 | Union Carbide Corporation | Barium-strontium-silicon-aluminum master alloy |
| US4211827A (en) * | 1979-03-15 | 1980-07-08 | Swiss Aluminium Ltd. | Al-Si-Sn Alloy clad composite |
| US4394348A (en) * | 1979-10-15 | 1983-07-19 | Interox Chemicals Ltd. | Process for the preparation of aluminium alloys |
| JPS6263640A (ja) * | 1986-09-27 | 1987-03-20 | Japan Metals & Chem Co Ltd | Ａｌ−Ｓｉ系合金改質用Ｓｒ−Ａｌ母合金 |
| US4899800A (en) * | 1987-10-15 | 1990-02-13 | Alcan International Limited | Metal matrix composite with coated reinforcing preform |
| US5837070A (en) * | 1994-06-13 | 1998-11-17 | Pechiney Rhenalu | Aluminum-silicon alloy sheet for use in mechanical, aircraft and spacecraft construction |
| US5882443A (en) * | 1996-06-28 | 1999-03-16 | Timminco Limited | Strontium-aluminum intermetallic alloy granules |
| US6132530A (en) * | 1996-06-28 | 2000-10-17 | Timminco Limited | Strontium-aluminum intermetallic alloy granules |
| US6210460B1 (en) | 1997-06-27 | 2001-04-03 | Timminco Limited | Strontium-aluminum intermetallic alloy granules |
| JP3112452B2 (ja) | 1998-06-08 | 2000-11-27 | ケイビー・アロイズ・インコーポレイテッド | 母合金、共晶及び亜共晶のアルミニウム−珪素鋳造合金の顕微鏡組織改質法及び母合金の製法 |
| FR2808536A1 (fr) * | 2000-05-08 | 2001-11-09 | Kyusyu Mitsui Aluminum Co Ltd | Procede de production d'une billette semi-fondue en alliage d'aluminium pour une utilisation comme unite de transport |
| US20070243097A1 (en) * | 2004-06-25 | 2007-10-18 | Emmanuelle Sarrazin | Process for Fabrication of Products Made of an Aluminium Alloy With High Toughness and High Fatigue Resistance |
| EP1645647A1 (de) * | 2004-10-08 | 2006-04-12 | Trimet Aluminium AG | Kaltaushärtende Aluminiumgusslegierung und Verfahren zur Herstellung eines Aluminiumgussteils |
| WO2009081157A1 (en) * | 2007-12-24 | 2009-07-02 | Foseco International Limited | Improved modifying flux for molten aluminium |
| US8603214B2 (en) | 2007-12-24 | 2013-12-10 | Foseco International Limited | Modifying flux for molten aluminium |
| CN107815560A (zh) * | 2017-10-11 | 2018-03-20 | 徐长勇 | 一种高质量合金铝棒制备工艺 |
| CN109722555A (zh) * | 2019-01-09 | 2019-05-07 | 北京科技大学广州新材料研究院 | 一种铸造铝合金晶粒细化变质方法 |
| CN114096690A (zh) * | 2019-07-08 | 2022-02-25 | Lkr轻金属能力中心兰斯霍芬有限责任公司 | 具有精细尺度共晶结构，特别是纳米共晶结构的合金以及这种合金的生产 |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1169104A (en) | 1969-10-29 |
| LU52759A1 (en, 2012) | 1967-03-06 |
| DE1255928B (de) | 1967-12-07 |
| BE692488A (en, 2012) | 1967-06-16 |
| FR1507664A (fr) | 1967-12-29 |
| NL6618414A (en, 2012) | 1967-07-14 |
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