US1854953A - Light metal alloy - Google Patents
Light metal alloy Download PDFInfo
- Publication number
- US1854953A US1854953A US512745A US51274531A US1854953A US 1854953 A US1854953 A US 1854953A US 512745 A US512745 A US 512745A US 51274531 A US51274531 A US 51274531A US 1854953 A US1854953 A US 1854953A
- Authority
- US
- United States
- Prior art keywords
- alloy
- light metal
- metal alloy
- silicon
- aluminium
- 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
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
- the object of the present invention is to provide an aluminium and silicon alloy having improved physical and casting properties.
- our improved alloy consists of an aluminium silicon alloy in which the silicon content is from 8 to 13% to which is added nickel in an amount equal to A, to 3%% of the total content. These percentages are by weight.
- the preferred proportions are three per cent nickel, eleven per cent silicon and the remainder aluminium.
- I claim 1 An improved light metal alloy containing by weight 86% of aluminium, 11% of silicon and 3% of nickel.- 2. An alloy consisting of 0.5 to 3.5 per 1 cent of nickel, 8.0 to 13.0 per cent of silicon,
Description
lotented Apr. 19, 1932 All UNITED PATENT OFFICE PERCY PRITGHARD, OI SME'EHWICK, NEAR BIRMINGHAM, ENGLAND, ASSIGNOR, BY
MEQNE ASSIGNMENTS, T0 ALUMINUM. COMPANY 0]! AMERICA, OF PITTSBURGH,
PENNSYLVANIA, .A. CORPORATION OF PENNSYLVANIA LIGHT METAL ALLOY No Drawing. Application filed January 31, 1931, Serial No. 512,745, and in Great Britain ljebruai'y 7, 1930.
The object of the present invention is to provide an aluminium and silicon alloy having improved physical and casting properties.
Accordingly our improved alloy consists of an aluminium silicon alloy in which the silicon content is from 8 to 13% to which is added nickel in an amount equal to A, to 3%% of the total content. These percentages are by weight.
The preferred proportions are three per cent nickel, eleven per cent silicon and the remainder aluminium.
In a convenient manufacture we first make an aluminium silicon alloy with a 13% silicon content and make an alloy of aluminium and nickel with a 20% nickel content.
We take 85 pounds of the former and 15 pounds of the latter which when melted together gives the preferred proportions inicated above.
We find the tensile strength of this alloy is considerably greater than that of ordinary aluminium silicon alloy, whilst its ductilit is eminently satisfactory. Further, its yield oint is raised; its hardness is increased and its machining properties which are usually poor in silicon alloys are remarkably improved.
The casting properties of the alloy are also much better; chilling, generally speakmg5 being entirely eliminated. he alloy lends itself very well to the well .known modification process by means of metallic sodium or sodium of salts whereby a coarse structure can be converted to a fine grain silky one. Y
I claim 1. An improved light metal alloy containing by weight 86% of aluminium, 11% of silicon and 3% of nickel.- 2. An alloy consisting of 0.5 to 3.5 per 1 cent of nickel, 8.0 to 13.0 per cent of silicon,
' the balance being aluminium.
.- Intestimony whereof I afiix my signature. PERCY PRITCHARD.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1854953X | 1930-02-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1854953A true US1854953A (en) | 1932-04-19 |
Family
ID=10892055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US512745A Expired - Lifetime US1854953A (en) | 1930-02-07 | 1931-01-31 | Light metal alloy |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1854953A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2525130A (en) * | 1944-03-10 | 1950-10-10 | Rolls Royce | Aluminium alloy having low coefficient of expansion |
| US2763546A (en) * | 1951-10-06 | 1956-09-18 | Gen Motors Corp | Aluminum base bearing |
-
1931
- 1931-01-31 US US512745A patent/US1854953A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2525130A (en) * | 1944-03-10 | 1950-10-10 | Rolls Royce | Aluminium alloy having low coefficient of expansion |
| US2763546A (en) * | 1951-10-06 | 1956-09-18 | Gen Motors Corp | Aluminum base bearing |
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