US1631930A - Method of improving aluminum alloys - Google Patents
Method of improving aluminum alloys Download PDFInfo
- Publication number
- US1631930A US1631930A US717170A US71717024A US1631930A US 1631930 A US1631930 A US 1631930A US 717170 A US717170 A US 717170A US 71717024 A US71717024 A US 71717024A US 1631930 A US1631930 A US 1631930A
- Authority
- US
- United States
- Prior art keywords
- aluminum alloys
- alloy
- same
- temperature
- improving
- 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 9
- 238000000034 method Methods 0.000 title description 9
- 229910045601 alloy Inorganic materials 0.000 description 10
- 239000000956 alloy Substances 0.000 description 10
- 238000011282 treatment Methods 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000737 Duralumin Inorganic materials 0.000 description 1
- 101710185409 Fusarin C synthetase Proteins 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000003756 stirring Methods 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
- VINGENZ FUSS OF LAUTAWEBK, GERKANY,ASSIGNOB 1'0 VEBEIHIG'I'E ALUIIHIU H- WEBKE A. 6., OI LAUTAWEBK, GERMANY.
- My invention relates to the art of improving or perfecting aluminum alloys, that 15 to say, to bring the alloy into a state of reater perfection especially as regards the p yslcal properties thereof.
- the ingot which preferably contains about 4% Cu and 12% Si, is heated to a temperature of about 500 C. and reduced out in a single operation to the final sectional dimensions by pressing, rolling or the like, so that the reduction as regards the crosssectiona'l area of the work will preferably amount to at least 90 p. c.
- the reduced bar is then heated for about three hours to about 500 C. or a little higher just as required by the solidus-point of the alloy, whereupon it is cooled either by chilling the same in oil, water or the like or by allowing it to cool down slowly.
- the cooled alloy then is hardened without subjecting the same to an further stretching operation and the har ening operation may be carried out at a temperature
- the thus rolled alloy is then subjectedto an annealing process for three hours and at a temperature of 500 C. or still more, justzrs required by the solidus-point of the alloy under treatment whereupon it is cooled by chilling the same in oil or water or by allowing it to cool down slowl
- the metal-sheets obtained this way are su jected for 48 hours to a temperature of 90 to 100 0.
- What I claim is The process of treating aluminum alloys consisting in producing an ingot of aluminum alloys with substantially four percent of copper and two percent of silicon, subfor the period of about three hours, cooling the same, and then maintaining the same at 15 a temperature of about 90 to 100 degrees C. for the period of about 48 hours.
Description
Patented June 7, 1927.
. UNITED STATES- PATENT orrlca,
VINGENZ FUSS, OF LAUTAWEBK, GERKANY,ASSIGNOB 1'0 VEBEIHIG'I'E ALUIIHIU H- WEBKE A. 6., OI LAUTAWEBK, GERMANY.
,METEQD OI IMPROVING ALUHINUE ALLOYS.
. no Drawing, Application fled Iay'Sl, 1924, Serial No. 717,170, and in German, Annie 18, 1m.
' My invention relates to the art of improving or perfecting aluminum alloys, that 15 to say, to bring the alloy into a state of reater perfection especially as regards the p yslcal properties thereof.
"In the methods hitherto applied for the purpose, a lengthy and complicated operation is necessary which is objectionable and detrimental mainly for the reason that the stretching out of the ingots is: to be interrupted by treating the same with heat and that the final stage of the operation is a repeated treatment with heat.
Furthermore, the hitherto known perfecting methods are applicable to the treatment of aluminum alloys only, which contain mag- Il-SllllIl.
In consequence thereof irregularities in the operation occur which prevent the final products to be obtained in accordance w th the hitherto practised methods from being uniform, so that the same fail to answer the desired purpose as regards both the obtainable properties and the final composition of the alloy.
The object ofmy invention these defects. 7
With this aim in view I stretch out the alloys or ingots, without interruption by treatments with heat or by cooling, to the desired is to remedy final dimensions by way of a continuous or uninterrupted reducing process, then I heat the stretched alloy to a temperature of about 500 C. and thereafter I cool the same as much as necessary and harden the same at a low temperature.
In practice my method may be carried out as follows:
The ingot which preferably contains about 4% Cu and 12% Si, is heated to a temperature of about 500 C. and reduced out in a single operation to the final sectional dimensions by pressing, rolling or the like, so that the reduction as regards the crosssectiona'l area of the work will preferably amount to at least 90 p. c.
The reduced bar is then heated for about three hours to about 500 C. or a little higher just as required by the solidus-point of the alloy, whereupon it is cooled either by chilling the same in oil, water or the like or by allowing it to cool down slowly. Y
I am aware that the operation of chilling an aluminum alloy for the purpose of improving the properties thereof is known in the art.
The cooled alloy then is hardened without subjecting the same to an further stretching operation and the har ening operation may be carried out at a temperature,
which is far below the temp ratures that are I usually employed hitherto f r the purpose.
E'wwmple.An ingot of an aluminum alloy containing in hundred parts about 4 parts of copper and 1 to 2 parts of silicon is heated to a temperature of about 500 C. and rolled by a rolling mill in tr continuous operation down to the final cross-section, which is about of the ori inal cross-sectional area. The thus rolled alloy is then subjectedto an annealing process for three hours and at a temperature of 500 C. or still more, justzrs required by the solidus-point of the alloy under treatment whereupon it is cooled by chilling the same in oil or water or by allowing it to cool down slowl The metal-sheets obtained this way are su jected for 48 hours to a temperature of 90 to 100 0.
As already intimated m method is particularly adapted and suita le for use in erfecting or improving aluminum alloys, w ich do not contaln magnesium and it is possible. to produce thereby, notwithstanding the simplified mode of operation, an equivalent or substitute for the known magnesium aluminum alloys like duraluminum which have the'great disadvantage, that the composition desirable in the final product scarcely or only with diflicultynca'n be obtained, since an incalculable portion or percentage of'the magnesium employed is consumed for'the deoxydation of the alloy and a further percent-age thereof is lost by burning during the mixing and stirring operation.
From the foregoing it is believed that the advantages and novel features of my invention will be readily understood and therefore further detail description is deemed unnecessarv.
It will be evident that my invention,
whilst still being adhered to in its main essentials may be varied and adapted in many ways, according to the particular requirements desired or most suitable under different circumstances.
What I claim is The process of treating aluminum alloys consisting in producing an ingot of aluminum alloys with substantially four percent of copper and two percent of silicon, subfor the period of about three hours, cooling the same, and then maintaining the same at 15 a temperature of about 90 to 100 degrees C. for the period of about 48 hours.
In Witness whereof I affix my signature.
DB. Inc. VINGENZ FUSS.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1631930X | 1923-08-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1631930A true US1631930A (en) | 1927-06-07 |
Family
ID=7737672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US717170A Expired - Lifetime US1631930A (en) | 1923-08-16 | 1924-05-31 | Method of improving aluminum alloys |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1631930A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3212941A (en) * | 1960-10-26 | 1965-10-19 | Reynolds Metals Co | Method of producing a bumper |
-
1924
- 1924-05-31 US US717170A patent/US1631930A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3212941A (en) * | 1960-10-26 | 1965-10-19 | Reynolds Metals Co | Method of producing a bumper |
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