US2240202A - Copper alloy - Google Patents
Copper alloy Download PDFInfo
- Publication number
- US2240202A US2240202A US286377A US28637739A US2240202A US 2240202 A US2240202 A US 2240202A US 286377 A US286377 A US 286377A US 28637739 A US28637739 A US 28637739A US 2240202 A US2240202 A US 2240202A
- Authority
- US
- United States
- Prior art keywords
- alloy
- nickel
- iron
- aluminum
- copper 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.)
- Expired - Lifetime
Links
- 229910000881 Cu alloy Inorganic materials 0.000 title description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 20
- 229910045601 alloy Inorganic materials 0.000 description 15
- 239000000956 alloy Substances 0.000 description 15
- 229910052742 iron Inorganic materials 0.000 description 10
- 229910052759 nickel Inorganic materials 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003754 machining Methods 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
- 238000007670 refining Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/01—Alloys based on copper with aluminium as the next major constituent
Definitions
- Fig. 1 is a vertical section of a. fragment of an internal combustion engine i
- I Fig. 2 is a diametrical vertical section of the valve port and seat according to Fig. 1 on an enlarged scale; and
- I Fig. 3 is a. perspective of the valve seat member according to Figs. 1 and 2.
- valve seat member shown in the drawing. It may, for example, be made in the form of the ring I shown in the drawing, this ring having the tapered valve seating surface 3 for cooperation with the puppet valve 5.
- the ring so constructed may be secured in place by pressing it into the complementary annular recess 1 about the upper edge portion of the valve port 9.
- the alloy according to the invention is predominantly copper, and contains requisite amounts of aluminum, nickel and iron to give with the nickel and aluminum imparts toughness andimproves the grain structure and wear resisting properties, the iron in such combination imparting such hardness to the alloy as makes it suitable for use as a valve seat or for analogous use under high temperature conditions but without making the alloy brittle or deleteriously reducing its resistance to corrosion.
- the resulting alloy will have the properties mentioned, and further that it may be hot worked without fracture markedly to refine its grain and give it a structure which, as compared to the cast alloy and to other alloys, is very fineand dense, such structure rendering it susceptible of taking a high finish and particularly suitable for use in situations where it is to make a tight fit with another part asis the case with a. valve seating surface.
- a particularly useful alloy according to the invention consists of, approximately, 9 to 10% aluminum, 1% nickel, and 0.25% iron.
- the above' alloys after being cast may 7 be preliminarily hot worked by extrusion or other hot working, followed by hot pressing or forging, for refining their grain and securing a fine dense
- the hot forging or pressing operation may involve making the blank for the ring-shaped valve seatmember, which blank niay be finished by a machining operation to secure' a smooth surface suitable for a valve seat.
- the valve seat so constructed is highly resistant to the corrosive and pitting effects of the high temperature exhaust gases of an internal combustion engine, and markedly resists fracture and wear tended to be caused by the hammering of the valve on such seat.
- the alloy according-to the invention consists essentially of that combination within'the ranges and proportions above mentioned.
- an alloy consisting essentially of, approximately, aluminum 8 to 11%, nickel .0.5 to 1.5%, iron 0.1 to 0.7%, copper balance, the amount'of nickel being at leasttwice the amount of iron.
- An alloy consistingessentially of. approximately, aluminum 9 to 10%, nickel 1%. iron 0.25%. copper balance.
Description
April 29, 1941. Q ANSELM] Y 2,240,202
COPPER ALLOY Filed July 25, 1959 Even/$02 Oar'Zo dinselmi- I cHZIZgs Patented Apr. 29, 1941 UNITED STATES PATENT OFFICE COPPER. ALLOY Carlo Ansehni, New York, N. Y. Application July 25, 1939, Serial No. 286,377 3 Claims. (0675-159) I My invention relates to alloys particularly use- 111 in situations where the article made of the same is subjected to severe wear, corrosive action particularly pointed out in the appended claims.
In the drawing:
Fig. 1 is a vertical section of a. fragment of an internal combustion engine i I Fig. 2 is a diametrical vertical section of the valve port and seat according to Fig. 1 on an enlarged scale; and I Fig. 3 is a. perspective of the valve seat member according to Figs. 1 and 2.
No claim is made for the particular shape of the valve seat member shown in the drawing. It may, for example, be made in the form of the ring I shown in the drawing, this ring having the tapered valve seating surface 3 for cooperation with the puppet valve 5. The ring so constructed may be secured in place by pressing it into the complementary annular recess 1 about the upper edge portion of the valve port 9.
The alloy according to the invention is predominantly copper, and contains requisite amounts of aluminum, nickel and iron to give with the nickel and aluminum imparts toughness andimproves the grain structure and wear resisting properties, the iron in such combination imparting such hardness to the alloy as makes it suitable for use as a valve seat or for analogous use under high temperature conditions but without making the alloy brittle or deleteriously reducing its resistance to corrosion. It has been found that by adding to copper these three metals within rather fairly critical ranges the resulting alloy will have the properties mentioned, and further that it may be hot worked without fracture markedly to refine its grain and give it a structure which, as compared to the cast alloy and to other alloys, is very fineand dense, such structure rendering it susceptible of taking a high finish and particularly suitable for use in situations where it is to make a tight fit with another part asis the case with a. valve seating surface.
The above properties adapting the alloy for structure.
use in the situations mentioned will be secured with, approximately, 8 to 11% aluminum, 0.5 to 1.5% nickel, and 0.1 to 0.7% iron provided the amount of nickel is at least twice the amount of iron. A particularly useful alloy according to the invention consists of, approximately, 9 to 10% aluminum, 1% nickel, and 0.25% iron.
The above' alloys after being cast may 7 be preliminarily hot worked by extrusion or other hot working, followed by hot pressing or forging, for refining their grain and securing a fine dense The hot forging or pressing operation may involve making the blank for the ring-shaped valve seatmember, which blank niay be finished by a machining operation to secure' a smooth surface suitable for a valve seat. The valve seat so constructed is highly resistant to the corrosive and pitting effects of the high temperature exhaust gases of an internal combustion engine, and markedly resists fracture and wear tended to be caused by the hammering of the valve on such seat.
Small amounts of manganese, say up to 1%,
,but preferably not over 0.5%, may be added to of sulphur, which is particularly objectionable with an alloy containing nickel. Small amounts of other metals also may be added for imparting additional properties to the alloy or for modifying those hereinbefore mentioned, or may exist as impurities, so long as they do not materially eliminate the valuable properties obtained by the combination of copper, aluminum, nickel and iron, and in this sense' the alloy according-to the invention consists essentially of that combination within'the ranges and proportions above mentioned.
Iclaim:
- 1. an alloy consisting essentially of, approximately, aluminum 8 to 11%, nickel .0.5 to 1.5%, iron 0.1 to 0.7%, copper balance, the amount'of nickel being at leasttwice the amount of iron.
2. An alloy consistingessentially of. approximately, aluminum 9 to 10%, nickel 1%. iron 0.25%. copper balance.
of iron.
' CARLO ANSELMI.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US286377A US2240202A (en) | 1939-07-25 | 1939-07-25 | Copper alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US286377A US2240202A (en) | 1939-07-25 | 1939-07-25 | Copper alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2240202A true US2240202A (en) | 1941-04-29 |
Family
ID=23098341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US286377A Expired - Lifetime US2240202A (en) | 1939-07-25 | 1939-07-25 | Copper alloy |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2240202A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2949901A (en) * | 1959-01-21 | 1960-08-23 | Charles O Spencer | Internal combustion engines |
| US3028850A (en) * | 1959-04-22 | 1962-04-10 | Thompson Ramo Wooldridge Inc | Valve seat insert |
| US4378332A (en) * | 1981-06-15 | 1983-03-29 | Ford Motor Company | Aluminum hardened copper alloy |
| EP0228282A2 (en) * | 1985-12-25 | 1987-07-08 | Toyota Jidosha Kabushiki Kaisha | Aluminium alloy cylinder head with a valve seat formed integrally by copper alloy cladding layer and underlying alloy layer |
| US5295461A (en) * | 1992-04-13 | 1994-03-22 | Ford Motor Company | Oil-starved valve assembly |
-
1939
- 1939-07-25 US US286377A patent/US2240202A/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2949901A (en) * | 1959-01-21 | 1960-08-23 | Charles O Spencer | Internal combustion engines |
| US3028850A (en) * | 1959-04-22 | 1962-04-10 | Thompson Ramo Wooldridge Inc | Valve seat insert |
| US4378332A (en) * | 1981-06-15 | 1983-03-29 | Ford Motor Company | Aluminum hardened copper alloy |
| EP0228282A2 (en) * | 1985-12-25 | 1987-07-08 | Toyota Jidosha Kabushiki Kaisha | Aluminium alloy cylinder head with a valve seat formed integrally by copper alloy cladding layer and underlying alloy layer |
| US4723518A (en) * | 1985-12-25 | 1988-02-09 | Toyota Jidosha Kabushiki Kaisha | Aluminum alloy cylinder head with valve seat formed integrally by copper alloy cladding layer and underlying alloy layer |
| EP0228282A3 (en) * | 1985-12-25 | 1988-09-21 | Toyota Jidosha Kabushiki Kaisha | Valve seat |
| US5295461A (en) * | 1992-04-13 | 1994-03-22 | Ford Motor Company | Oil-starved valve assembly |
| US5406917A (en) * | 1992-04-13 | 1995-04-18 | Ford Motor Company | Oil-starved valve assembly |
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