GB512244A - Improvements relating to alloy cast irons and to articles manufactured therefrom - Google Patents
Improvements relating to alloy cast irons and to articles manufactured therefromInfo
- Publication number
- GB512244A GB512244A GB616238A GB616238A GB512244A GB 512244 A GB512244 A GB 512244A GB 616238 A GB616238 A GB 616238A GB 616238 A GB616238 A GB 616238A GB 512244 A GB512244 A GB 512244A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- cooled
- improvements relating
- alloy cast
- stokes
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D5/00—Heat treatments of cast-iron
Abstract
512,244. Alloys ; annealing. SHEEPBRIDGE STOKES CENTRIFUGAL CASTINGS CO., Ltd., and STOKES, A. J. Feb. 26, 1938, No. 6162. [Classes 72 and 82 (i)] Machined castings such as cylinder liners, piston rings, and valve seat inserts for internal combustion engines are made from cast iron alloys containing 1.8-2.5 per cent. each of carbon and silicon, up to 1 per cent. of aluminium, and 15.5-20.5 per cent. of chromium with or without up to 1.5 per cent. of manganese and up to 1 per cent. of phosphorus. Sulphur may be present up to 0.12 per cent. as an impurity, and up to a total of 3 per cent. of molybdenum, nickel, zirconium, copper, tungsten, titanium, and vanadium, not exceeding 1 per cent. of each, may also be added. The casting is cooled, reheated to 950-990‹C., cooled to atmospheric temperature, machined, reheated for say 1 hour to 950-990‹C. and cooled quickly, and finally tempered by further heating to 570-700‹C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB616238A GB512244A (en) | 1938-02-26 | 1938-02-26 | Improvements relating to alloy cast irons and to articles manufactured therefrom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB616238A GB512244A (en) | 1938-02-26 | 1938-02-26 | Improvements relating to alloy cast irons and to articles manufactured therefrom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB512244A true GB512244A (en) | 1939-08-31 |
Family
ID=9809545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB616238A Expired GB512244A (en) | 1938-02-26 | 1938-02-26 | Improvements relating to alloy cast irons and to articles manufactured therefrom |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB512244A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2818359A (en) * | 1954-03-01 | 1957-12-31 | Gen Motors Corp | Method of making flanged cylinder liners |
| US4222793A (en) * | 1979-03-06 | 1980-09-16 | General Motors Corporation | High stress nodular iron gears and method of making same |
| GB2119816A (en) * | 1982-02-27 | 1983-11-23 | Kyowa Chuzosho Yk | Cast iron alloy and method for producing same |
| WO2012170332A3 (en) * | 2011-06-10 | 2013-01-31 | Caterpillar Inc. | Machine component with a cavitation resistant covering |
-
1938
- 1938-02-26 GB GB616238A patent/GB512244A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2818359A (en) * | 1954-03-01 | 1957-12-31 | Gen Motors Corp | Method of making flanged cylinder liners |
| US4222793A (en) * | 1979-03-06 | 1980-09-16 | General Motors Corporation | High stress nodular iron gears and method of making same |
| GB2119816A (en) * | 1982-02-27 | 1983-11-23 | Kyowa Chuzosho Yk | Cast iron alloy and method for producing same |
| WO2012170332A3 (en) * | 2011-06-10 | 2013-01-31 | Caterpillar Inc. | Machine component with a cavitation resistant covering |
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