US1813850A - Aluminum alloy - Google Patents
Aluminum alloy Download PDFInfo
- Publication number
- US1813850A US1813850A US485548A US48554830A US1813850A US 1813850 A US1813850 A US 1813850A US 485548 A US485548 A US 485548A US 48554830 A US48554830 A US 48554830A US 1813850 A US1813850 A US 1813850A
- Authority
- US
- United States
- Prior art keywords
- alloy
- aluminum alloy
- application
- per cent
- exceeding
- 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
- 229910000838 Al alloy Inorganic materials 0.000 title description 2
- 229910045601 alloy Inorganic materials 0.000 description 16
- 239000000956 alloy Substances 0.000 description 16
- 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
- 239000011734 sodium Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium 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
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
Definitions
- This invention is a modification of the invention described in application for Letters Patent Serial No. 401,970, now Letters Patent No. 1,782,300, of November 30, 1930, and the 51 modification thereof described in our concurrentapplication'serial No. 485,547 of the date of this application.
- thesaid application forLetters Patent we have described an alloy compounded of the elements in the rela- Per cent of the whole Copper 0.5 to 5.0 Magnesium 0.1 to 1.7 Nickel; 0.2 to 1.5 Iron; 0.6 to 1.5 Silicon exceeding 0.55 to 2.8 Titanium up to 0.3 Manganese; up to 0.3 Aluminium the remainder Only traces'of other elements.
- dium is as follows: We take a small quantity of metallic sodium (not exceeding the aforesaid limit) and in order to'delay the oxidization of the sodium as long as possible wrap it ina piece of sheet aluminium or aluminium foil, and so wrapped plunge it into the molten alloy, and hold it below the surface thereof until it is diffused. The bulk ofthe sodium so added is lost. through burning at the moment of immersion, and through the fluxing The preferred method of applying the soand deoxidizing effect 'on the alloy, and only traces of 1t are left in the castings.
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)
- Continuous Casting (AREA)
Description
tive quantities as follows Patented 1.1, 7-, 1931 UNITED STATES PATENT OFFICE HORACE CAMPBELL HALL, 01E LITTLEOVER, DERBY, AND TENNYSON FRASER BRAD- BURY,. OF DERBY, ENGLAND, ASSIG-NORS TO ROLLS ROYCE LIMITED, OF DERBY,
ENGLAND ALUMI U ALLOY No Drawing. Application filed September 30, 1930, Serial No. 485,548, and in Great Britain October 1, 1920.
This invention is a modification of the invention described in application for Letters Patent Serial No. 401,970, now Letters Patent No. 1,782,300, of November 30, 1930, and the 51 modification thereof described in our concurrentapplication'serial No. 485,547 of the date of this application. In thesaid application forLetters Patent we have described an alloy compounded of the elements in the rela- Per cent of the whole Copper 0.5 to 5.0 Magnesium 0.1 to 1.7 Nickel; 0.2 to 1.5 Iron; 0.6 to 1.5 Silicon exceeding 0.55 to 2.8 Titanium up to 0.3 Manganese; up to 0.3 Aluminium the remainder Only traces'of other elements.
In our concurrent application of the date of this application Serial No. 485,547 we have described a modification of the said alloy in which the magnesium content exceeds 0.03 per cent but does not exceed 0.10 per cent. Alloys falling within the saidranges are herei'nafter called the said alloys. 1
Since the date of our said application we have discovered that the castings of the said alloys are more free from scum and pin holes, particularly on the upper surface, if a small quantity -of metallic sodium not exceeding 0.01 per cent of the alloy to be treated is plunged into the alloy when in a molten condition, and preferably immediately before the latter is poured into the mould. This process has the effect of cleaning and de-oxidizing the alloy.
dium is as follows: We take a small quantity of metallic sodium (not exceeding the aforesaid limit) and in order to'delay the oxidization of the sodium as long as possible wrap it ina piece of sheet aluminium or aluminium foil, and so wrapped plunge it into the molten alloy, and hold it below the surface thereof until it is diffused. The bulk ofthe sodium so added is lost. through burning at the moment of immersion, and through the fluxing The preferred method of applying the soand deoxidizing effect 'on the alloy, and only traces of 1t are left in the castings. We are aware that it has previously been proposed to modify the structure of aluminium alloys by the addition thereto of metallic sodium, but the proposals have been to add the sodium in quantities considerably larger than that which we use (namely not exceeding 0.01 per cent of the alloy to be treated) which is insufficient to affect the structure of the alloy but yet is suflicient to eifect the advantages before described.
What we claim is 1. As a process in making a casting of the following metals, to wit:
Only traces of other elements.
before pouring the molten alloy into the mould, plunging into it a small quantity of metallic sodium not exceeding 0.01 per cent of the alloy to be treated.
2. A process as claimedv in claim 1 the metallic sodium being plunged into the molten alloy immediately prior to the latter bein poured into the mould.
3. A process as claimed in claim 1 the metallic sodium being held under the surface of the molten alloy until diffused. i
In testimony whereof we have hereunto aflixed our signatures. I
HORACE CAMPBELL HALL.
TENNYSON FRASER BRADBURY. J
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1813850X | 1929-10-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1813850A true US1813850A (en) | 1931-07-07 |
Family
ID=10891190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US485548A Expired - Lifetime US1813850A (en) | 1929-10-01 | 1930-09-30 | Aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1813850A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2781263A (en) * | 1949-07-18 | 1957-02-12 | Rolls Royce | Aluminium base alloy |
-
1930
- 1930-09-30 US US485548A patent/US1813850A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2781263A (en) * | 1949-07-18 | 1957-02-12 | Rolls Royce | Aluminium base alloy |
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