GB439804A - Improvements in the heat treatment of aluminium alloys - Google Patents
Improvements in the heat treatment of aluminium alloysInfo
- Publication number
- GB439804A GB439804A GB1680934A GB1680934A GB439804A GB 439804 A GB439804 A GB 439804A GB 1680934 A GB1680934 A GB 1680934A GB 1680934 A GB1680934 A GB 1680934A GB 439804 A GB439804 A GB 439804A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- hour
- heating
- temperature
- heat treatment
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Conductive Materials (AREA)
Abstract
In the heat treatment of aluminium alloys, the alloys after a solution treatment are aged by heating them to 190-250 DEG C. and controlling the initial cooling down to a temperature not less than 90 DEG C. so that this cooling takes place gradually in a prearranged time. The temperature may fall in steps or stages, or continuously. In an example, an alloy containing 1,5 per cent of copper, 3 per cent of silicon, 0,25 per cent of magnesium, 1 per cent of nickel, 1,2 per cent of iron, 0,2 per cent of titanium and the remainder aluminium, was given a solution treatment by heating for 3 hours at 530 DEG C. and quenched and then aged by heating to 200 DEG C. and allowing the temperature to fall to 170 DEG C. in the first hour, 155 DEG C. in the second hour, and 140 DEG C. in the third hour. The subsequent cooling may be effected in any desired manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1680934A GB439804A (en) | 1934-06-06 | 1934-06-06 | Improvements in the heat treatment of aluminium alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1680934A GB439804A (en) | 1934-06-06 | 1934-06-06 | Improvements in the heat treatment of aluminium alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB439804A true GB439804A (en) | 1935-12-06 |
Family
ID=10084048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1680934A Expired GB439804A (en) | 1934-06-06 | 1934-06-06 | Improvements in the heat treatment of aluminium alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB439804A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3164497A (en) * | 1963-02-08 | 1965-01-05 | North American Aviation Inc | Progressive slope aging process |
-
1934
- 1934-06-06 GB GB1680934A patent/GB439804A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3164497A (en) * | 1963-02-08 | 1965-01-05 | North American Aviation Inc | Progressive slope aging process |
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