NO771788L - ALLOCATION AND PROCEDURE FOR ITS MANUFACTURE - Google Patents
ALLOCATION AND PROCEDURE FOR ITS MANUFACTUREInfo
- Publication number
- NO771788L NO771788L NO771788A NO771788A NO771788L NO 771788 L NO771788 L NO 771788L NO 771788 A NO771788 A NO 771788A NO 771788 A NO771788 A NO 771788A NO 771788 L NO771788 L NO 771788L
- Authority
- NO
- Norway
- Prior art keywords
- particles
- strontium
- prealloy
- silicon
- aluminum
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 23
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 229910052712 strontium Inorganic materials 0.000 claims description 42
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 42
- 239000002245 particle Substances 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 38
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 33
- 229910052782 aluminium Inorganic materials 0.000 claims description 30
- MIDOFQRPAXDZET-UHFFFAOYSA-N [Si].[Sr] Chemical compound [Si].[Sr] MIDOFQRPAXDZET-UHFFFAOYSA-N 0.000 claims description 21
- 229910045601 alloy Inorganic materials 0.000 claims description 20
- 239000000956 alloy Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 12
- 230000005496 eutectics Effects 0.000 claims description 11
- 238000005266 casting Methods 0.000 claims description 10
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000002210 silicon-based material Substances 0.000 claims description 8
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 6
- 229910000676 Si alloy Inorganic materials 0.000 claims description 6
- 229910052791 calcium Inorganic materials 0.000 claims description 6
- 239000011575 calcium Substances 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- FWGZLZNGAVBRPW-UHFFFAOYSA-N alumane;strontium Chemical compound [AlH3].[Sr] FWGZLZNGAVBRPW-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910021332 silicide Inorganic materials 0.000 description 2
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000789 Aluminium-silicon alloy Inorganic materials 0.000 description 1
- 239000004484 Briquette Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 239000011872 intimate mixture Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000006069 physical mixture Substances 0.000 description 1
- 238000009702 powder compression Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011856 silicon-based particle Substances 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 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
- C22C21/04—Modified aluminium-silicon alloys
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Details Of Indoor Wiring (AREA)
- Golf Clubs (AREA)
- Silicon Compounds (AREA)
Description
Forlegering.Pre-alloy.
Foreliggende oppfinnelse vedrører en forlegering til regulering av kornstrukturen i aluminium-silisiumlegeringer. Mer spesielt angår oppfinnelsen strontium-holdige forlegeringer for tilsetning til eutektiske og hypo-eutektiske silisium-aluminium-støpelegeringer. The present invention relates to a prealloy for regulating the grain structure in aluminium-silicon alloys. More particularly, the invention relates to strontium-containing prealloys for addition to eutectic and hypo-eutectic silicon-aluminium casting alloys.
Ønskeligheten med tilsetning av strontium til andre metaller for å forandre eller forbedre deres egenskaper har lenge vært forstått innen metallurgien. Den tidligere teknikk og problemene i denne forbindelse og formålet med foreliggende oppfinnelse er angitt i (U.S. søknad nr. 762,018). The desirability of adding strontium to other metals to change or improve their properties has long been understood in metallurgy. The prior art and the problems in this connection and the object of the present invention are set forth in (U.S. Application No. 762,018).
Formålene oppnås ifølge foreliggende oppfinnelse hvorved en strontium-holdig forlegering som er like effektiv som de kjente strontium-aluminium-forlegeringer på en per-enhet strontium-basis kai fremstilles ved å danne en intim blanding omfattende a) partikler av et strontium-holdig materiale av den nedenfor beskrevne type og b) partikler av et aluminium-holdig materiale som beskrevet i (U.S. søknad nr. 762,018). The objectives are achieved according to the present invention whereby a strontium-containing prealloy which is as effective as the known strontium-aluminum prealloys on a per-unit strontium-based dock is produced by forming an intimate mixture comprising a) particles of a strontium-containing material of the type described below and b) particles of an aluminum-containing material as described in (U.S. Application No. 762,018).
Det "aluminium-holdige materiale" egnet for bruk i foreliggende oppfinnelse omfatter partikler av aluminium (eller aluminium-pulver), partikler av aluminium-legeringer som er forenlige med foreliggende forlegering (f.eks. aluminium-silisium-legeringer), og blandinger av partikler av aluminium og andre forenlige materialer. Aluminium-silisium-legeringer som kan utgjøre det "aluminium-holdige materiale", innbefatter hypo-eutektiske, eutektiske og hyper-eutektiske aluminium-silisium-legeringer. Formålene ved foreliggende oppfinnelse kan også oppnås, om ønsket, ved å sløyfe komponent b) og bare anvende partikler av det strontium-holdige materiale. The "aluminium-containing material" suitable for use in the present invention includes particles of aluminum (or aluminum powder), particles of aluminum alloys compatible with the present prealloy (e.g. aluminum-silicon alloys), and mixtures of particles of aluminum and other compatible materials. Aluminum-silicon alloys which may constitute the "aluminum-containing material" include hypo-eutectic, eutectic and hyper-eutectic aluminum-silicon alloys. The purposes of the present invention can also be achieved, if desired, by omitting component b) and only using particles of the strontium-containing material.
Forlegeringen ifølge oppfinnelsen inneholder minst ca. 3 vektprosent, hensiktsmessig mellom ca. 3°£ca« 37 vektprosent og fortrinnsvis mellom ca. 10 og 30 vektprosent strontium-holdig materiale (uttrykt som vektprosent strontium), idet resten utgjøres av aluminium-holdig materiale (komponent b)). Med at resten utgjøres av aluminium-holdig materiale menes aluminium-holdig materiale og mindre mengder av andre elementer som kan være tilstede, slik som de som nevnes i The prealloy according to the invention contains at least approx. 3 percent by weight, suitably between approx. 3°£ca« 37 percent by weight and preferably between approx. 10 and 30 percent by weight of strontium-containing material (expressed as percent by weight of strontium), the rest being made up of aluminum-containing material (component b)). By the rest being aluminum-containing material is meant aluminum-containing material and smaller amounts of other elements that may be present, such as those mentioned in
(U.S. søknad nr. 762."018) og også titan. Disse elementer befin-ner seg i alminnelighet i forlegeringen _ som "tilfeldige urenheter" i det strontium-holdige materiale. Med betegnelsen "mindre mengder" menes mengder som ikke har skadelig innvirkning (U.S. Application No. 762.018) and also titanium. These elements are generally found in the prealloy as "incidental impurities" in the strontium-containing material. By the term "minor amounts" is meant amounts that do not have a harmful effect
på egenskapene til den resulterende forlegering, som nærmere om-talt i (U.S. søknad nr. 762.OI8). on the properties of the resulting alloy, as further discussed in (U.S. Application No. 762.OI8).
En form av forlegeringen ifølge oppfinnelsen fremstilles ved intim sammenblanding av partikkelformet strontium-holdig materiale med partikkelformet aluminium-holdig materiale, enten med eller uten etterfølgende sammenpressing ved konven-sjonelle metallpulver-sammenpresningstrykk, for dannelse av hensiktsmessig formede pressede emner for tilsetning til smeltede silisium-aluminium-støpelegeringer som nærmere beskrevet i One form of the prealloy according to the invention is produced by intimate mixing of particulate strontium-containing material with particulate aluminum-containing material, either with or without subsequent compression by conventional metal powder compression pressure, to form appropriately shaped pressed blanks for addition to molten silicon aluminum casting alloys as further described in
(U.S. søknad rir. 762.018).(U.S. application rir. 762,018).
Det strontium-holdige materiale, slik uttrykket er benyttet, er strontium-silisium. Strontium-silisium som hverken er en enkel legering eller en virkelig ionisk eller kovalent forbindelse, anses for å være en blanding som inneholder en "inter-metallisk forbindelse" av strontium og silisium kjent som "strontium-silicid". En type strontium-silisium som er egnet for bruk i foreliggende oppfinnelse er et kommersielt tilgjengelig strontium-silisium inneholdende omtrent mellom ca. 15 og 60 vektprosent strontium, mellom ca. 4-0 og 75 vektprosent silisiumbg opp til 10 vektprosent tilfeldige urenheter slik som kalsium, jern, barium, karbon, mangan, titan og zirkon. Strontium-silicid (SrSig), en kjent forbindelse, inneholder f.eks. 6l vektprosent strontium og 39 vektprosent silisium. Et studium av strukturen for kommersiell strontium-silisium ved røntgen-diffraksjon, viser' at strontiumet er tilstede hovedsakelig i form av SrSig. Strontium-silisium inneholdende mindre enn 6l vektprosent strontium er derfor kjennetegnet ved et strontiuminnhold i form av SrSig sammen med overskudd Si. En typisk metode for fremstilling av et strontium-silisium-materiale inneholdende opp til 55 vektprosent strontium er beskrevet i U.S. patent nr. 3»374«086. Et'eksempel på et egnet strontium-silisium-materiale omfatter ca. 42-47 vektprosent silisium, ca. 4 vektprosent jern og ca. 1 til 3 vektprosent kalsium. The strontium-containing material, as the term is used, is strontium-silicon. Neither a simple alloy nor a truly ionic or covalent compound, strontium-silicon is considered to be a mixture containing an "inter-metallic compound" of strontium and silicon known as "strontium silicide". One type of strontium silicon which is suitable for use in the present invention is a commercially available strontium silicon containing approximately between approx. 15 and 60 percent by weight strontium, between approx. 4-0 and 75 percent by weight siliconbg up to 10 percent by weight random impurities such as calcium, iron, barium, carbon, manganese, titanium and zircon. Strontium silicide (SrSig), a known compound, contains e.g. 6l weight percent strontium and 39 weight percent silicon. A study of the structure of commercial strontium silicon by X-ray diffraction shows that the strontium is present mainly in the form of SrSig. Strontium-silicon containing less than 6l weight percent strontium is therefore characterized by a strontium content in the form of SrSig together with excess Si. A typical method for making a strontium-silicon material containing up to 55 weight percent strontium is described in U.S. Pat. patent No. 3»374«086. An example of a suitable strontium-silicon material includes approx. 42-47 weight percent silicon, approx. 4 weight percent iron and approx. 1 to 3 weight percent calcium.
Det aluminium-holdige materiale som anvendes ved utførelsen av foreliggende oppfinnelse er fortrinnsvis aluminium-pulver. Ifølge en foretrukken utførelse av oppfinnelsen blir kommersielt rent aluminium-pulver blandet med strontium-silisium-pulver for dannelse av forlegeringen. Når den bland- The aluminum-containing material used in the execution of the present invention is preferably aluminum powder. According to a preferred embodiment of the invention, commercially pure aluminum powder is mixed with strontium-silicon powder to form the prealloy. When the mix-
ede fysiske blanding av strontium-holdig materiale og aluminium-holdig materiale skal sammenpresses til brikette-form eller lignende, utgjør den aluminium-holdige komponent i blandingen hensiktsmessig et minimum på ca. 10 vektprosent av den totale sammensetning for a gi et erinet bindemiddel for sammenpressing. If a physical mixture of strontium-containing material and aluminum-containing material is to be compressed into briquette form or the like, the aluminum-containing component in the mixture appropriately constitutes a minimum of approx. 10% by weight of the total composition to provide a suitable binder for compression.
Mengden av aluminium-holdig materiale som anven-The amount of aluminum-containing material used
des kan imidlertid være så lav som ønskelig eller den kan sløyfes helt, fordi strontium-silisium-partikler kan sammen*-presses uten hjelp av nevnte materiale, spesielt ved trykk på minst ca. 700 kg/cm og med partikkelstørrelser på minus 100 des can, however, be as low as desired or it can be completely omitted, because strontium-silicon particles can be pressed together* without the aid of said material, especially at pressures of at least approx. 700 kg/cm and with particle sizes of minus 100
mesh.mesh.
Ved modifisering av strukturen til eutektiske og hypo-eutektiske aluminium-silisium-støpelegeringer ifølge foreliggende oppfinnelse, blir nevnte forlegering tilsatt til legeringen som skal modifiseres mens den sistnevnte er i smeltet tilstand, slik som beskrevet i (U.S.søknad nr. 762.OI8). When modifying the structure of eutectic and hypo-eutectic aluminum-silicon casting alloys according to the present invention, said prealloy is added to the alloy to be modified while the latter is in a molten state, as described in (U.S. application no. 762.OI8).
I tillegg til at det ovenfor beskrevne strontium-silisium-materiale varierer fra halvparten til en førtiendedel av prisen på strontium-metall,(for.fremstilling av en strontium-aluminium-forlegering), gjennomgår strontium-silisium-materialet som anvendes ved dannelse av foreliggende forleger- In addition to the fact that the above-described strontium-silicon material varies from half to one-fortieth of the price of strontium metal (for the production of a strontium-aluminum prealloy), the strontium-silicon material used in the formation of the present publishers-
ing ingen betydelig oksydasjon eller brenning når sammenset-ningen tilsettes i enten løs eller sammenpresset form til de smeltede silisium-aluminium-støpelegeringer. ing no significant oxidation or burning when the composition is added in either loose or compressed form to the molten silicon-aluminum casting alloys.
Fordelene med foreliggende forlegering i forholdThe advantages of the present prealloy in relation
til tidligere kjente strontium-holdige forlegeringer er mer detaljert beskrevet i (U.S.søknad nr. 7^2.018). to previously known strontium-containing master alloys is described in more detail in (U.S. Application No. 7^2,018).
Claims (30)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/763,553 US4108646A (en) | 1975-06-11 | 1977-01-28 | Strontium-bearing master composition for addition to eutectic and hypo-eutectic silicon-aluminum casting alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO771788L true NO771788L (en) | 1978-07-31 |
Family
ID=25068149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO771788A NO771788L (en) | 1977-01-28 | 1977-05-23 | ALLOCATION AND PROCEDURE FOR ITS MANUFACTURE |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5394211A (en) |
| AU (1) | AU512023B2 (en) |
| DE (1) | DE2719129A1 (en) |
| FR (1) | FR2378870A2 (en) |
| GB (1) | GB1583083A (en) |
| IT (1) | IT1116633B (en) |
| NL (1) | NL7705438A (en) |
| NO (1) | NO771788L (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2569804Y2 (en) * | 1991-01-23 | 1998-04-28 | 株式会社タダノ | Work vehicle drive |
| US5882443A (en) * | 1996-06-28 | 1999-03-16 | Timminco Limited | Strontium-aluminum intermetallic alloy granules |
| US6210460B1 (en) | 1997-06-27 | 2001-04-03 | Timminco Limited | Strontium-aluminum intermetallic alloy granules |
| US20050189083A1 (en) * | 2004-03-01 | 2005-09-01 | Stahl Kenneth G.Jr. | Casting mold and method for casting achieving in-mold modification of a casting metal |
| JP7003734B2 (en) * | 2018-02-28 | 2022-01-21 | 東ソー株式会社 | Bulk body containing strontium and its manufacturing method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE187414C (en) * | ||||
| DE1255928B (en) * | 1966-01-13 | 1967-12-07 | Metallgesellschaft Ag | Process to achieve a long-lasting refining effect in aluminum-silicon alloys |
| DE1608245B2 (en) * | 1967-09-21 | 1975-10-02 | Metallgesellschaft Ag, 6000 Frankfurt | Process for the production of master alloys containing strontium |
| CH502440A (en) * | 1967-09-21 | 1971-01-31 | Metallgesellschaft Ag | Process for the production of strontium- and / or barium-containing master alloys for the refinement of aluminum alloys |
| DE2423080A1 (en) * | 1974-05-13 | 1975-11-27 | Graenz Karl | Barium and-or strontium-contg. alloys - prepd. by reacting lithium- contg. aluminium, silicon or magnesium melts with barium and-or strontium cpds. |
| CA1064736A (en) * | 1975-06-11 | 1979-10-23 | Robert D. Sturdevant | Strontium-bearing master composition for aluminum casting alloys |
-
1977
- 1977-04-29 DE DE19772719129 patent/DE2719129A1/en active Granted
- 1977-05-06 AU AU24958/77A patent/AU512023B2/en not_active Expired
- 1977-05-13 JP JP5446877A patent/JPS5394211A/en active Pending
- 1977-05-17 NL NL7705438A patent/NL7705438A/en not_active Application Discontinuation
- 1977-05-18 IT IT68134/77A patent/IT1116633B/en active
- 1977-05-23 NO NO771788A patent/NO771788L/en unknown
- 1977-05-23 FR FR7715803A patent/FR2378870A2/en active Granted
- 1977-05-24 GB GB21749/77A patent/GB1583083A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5394211A (en) | 1978-08-18 |
| FR2378870A2 (en) | 1978-08-25 |
| DE2719129C2 (en) | 1990-07-12 |
| AU2495877A (en) | 1978-11-09 |
| GB1583083A (en) | 1981-01-21 |
| IT1116633B (en) | 1986-02-10 |
| AU512023B2 (en) | 1980-09-18 |
| DE2719129A1 (en) | 1978-08-10 |
| NL7705438A (en) | 1978-08-01 |
| FR2378870B2 (en) | 1981-06-12 |
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