CH227385A - Special brass. - Google Patents
Special brass.Info
- Publication number
- CH227385A CH227385A CH227385DA CH227385A CH 227385 A CH227385 A CH 227385A CH 227385D A CH227385D A CH 227385DA CH 227385 A CH227385 A CH 227385A
- Authority
- CH
- Switzerland
- Prior art keywords
- special brass
- brass
- special
- zinc
- manganese
- Prior art date
Links
- 229910001369 Brass Inorganic materials 0.000 title claims description 10
- 239000010951 brass Substances 0.000 title claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 7
- 239000011701 zinc Substances 0.000 claims description 7
- 229910052725 zinc Inorganic materials 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 239000010949 copper Substances 0.000 description 5
- 229910052748 manganese Inorganic materials 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
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
- C22C9/04—Alloys based on copper with zinc as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/80—Other features with arrangements for preheating the blast or the water vapour
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Sliding-Contact Bearings (AREA)
Description
Sondermessing. Bei den bisher genormten Sondermessingen nach Klasse A und B, DIN 1709, ist dem Hersteller ein verhältnismässig weiter Spiel raum in der Wahl der Legierungskomponenten, s die gegenüber normalem Messing erhöhte me chanische Werte ergeben, gelassen. Die Ele mente Fe, Al, Mn und Sn dürfen bis zu 7,5 0/0 einzeln oder zu mehreren nach Wahl des Her stellers zulegiert werden.
r Um ein Sondermessing mit besonders guten mechanischen Werten zu erhalten, war man bisher in Fachkreisen der Ansicht, dass ausser Al und Fe auch Mangan in gewissen Gren zen zulegiert werden müsse. Beispielsweise ist in der Fliegnorm für die dort festgelegte Sondermessingsorte ausser A1 und Fe auch ein Mangangehalt vorgeschrieben.
Entgegen dieser herrschenden Fachmei nung haben nun Versuche überraschenderweise ergeben, dass man ohne das teure, aus dem Ausland bezogene Mangan ein Sondermessing mit gleichen, teilweise sogar noch günstigeren Eigenschaften erhalten kann, und zwar bei folgender Zusammensetzung: Cu 55 - 58 0% Al 0,5 - 3 0/0 Fe 1 - 2 % Rest Zink.
Beispielsweise sind mit der Legierung: Cu 56 % 1 1 0/0 Fe 2 0/10 Rest Zink folgende Werte erreicht worden Zugfestigkeit 60 kg/mm2 Dehnung 15 % Brinellhärte 150 - 200 kg!mmz Streckgrenze 25 kg/mm2 Weitere Versuche haben gezeigt, dass mit diesen manganfreien Legierungen sogar die hohen Werte der Aluminiumbronze erreicht werden,
wenn bei gleichbleibendem Cu- und Fe-Gehalt der Aluminiumgehalt auf Kosten des Zinkzusatzes auf 2 - 3 % erhöht wird. Xit der Legierung Cu 56 % Al 2 "/0 Fe 2 /o Rest Zink sind beispielsweise folgende Werte erreicht worden Zerreissfestigkeit 70 kg/mml Dehnung 5 0/0 Brinellhärte 170 - 230 kg,
mm Streckgrenze 40 Hierdurch ist nun ausser der geschilderten vollständigen Ersparnis von 1Vlangan auch eine bedeutende Einsparung von Kupfer gegenüber den Aluminiumbronzen erreicht.
Diese Legierungen können vorteilhaft im Flugzeugbau, sowohl in Motoren als auch für Zellenbau Verwendung finden. Auch für die gleitende Beanspruchung sind diese Legie rungen. geeignet.
Special brass. With the previously standardized special brass according to Class A and B, DIN 1709, the manufacturer has a relatively large amount of leeway in the choice of alloy components, which result in higher mechanical values compared to normal brass. The elements Fe, Al, Mn and Sn can be alloyed up to 7.5% individually or in groups of the manufacturer's choice.
In order to obtain a special brass with particularly good mechanical properties, experts have previously been of the opinion that apart from Al and Fe, manganese must also be alloyed within certain limits. For example, apart from A1 and Fe, the flying standard also stipulates a manganese content for the special brass type specified there.
Contrary to this prevailing professional opinion, experiments have now surprisingly shown that, without the expensive manganese obtained from abroad, a special brass with the same, sometimes even more favorable properties can be obtained, with the following composition: Cu 55 - 58 0% Al 0, 5 - 3 0/0 Fe 1 - 2% balance zinc.
For example, with the alloy: Cu 56% 1 1 0/0 Fe 2 0/10 the remainder zinc, the following values have been achieved Tensile strength 60 kg / mm2 Elongation 15% Brinell hardness 150 - 200 kg! Mmz Yield strength 25 kg / mm2 Further tests have shown that even the high values of aluminum bronze can be achieved with these manganese-free alloys,
if, with the same Cu and Fe content, the aluminum content is increased to 2-3% at the expense of the addition of zinc. With the alloy Cu 56% Al 2 "/ 0 Fe 2 / o remainder zinc, the following values have been achieved, for example, tensile strength 70 kg / mml elongation 5 0/0 Brinell hardness 170 - 230 kg,
mm yield strength 40 As a result, in addition to the complete saving of 1Vlangan described, a significant saving in copper compared to aluminum bronzes is now achieved.
These alloys can be used advantageously in aircraft construction, both in engines and for cell construction. These alloys are also suitable for sliding loads. suitable.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE190142X | 1942-01-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH227385A true CH227385A (en) | 1943-06-15 |
Family
ID=5722245
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH190142D CH190142A (en) | 1942-01-19 | 1936-06-19 | Centrifugal drum for discharging the centrifugal liquid by means of peeling bodies. |
| CH227385D CH227385A (en) | 1942-01-19 | 1942-10-29 | Special brass. |
| CH226886D CH226886A (en) | 1942-01-19 | 1942-12-14 | Gas generator for operation with wood, charcoal or the like. |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH190142D CH190142A (en) | 1942-01-19 | 1936-06-19 | Centrifugal drum for discharging the centrifugal liquid by means of peeling bodies. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH226886D CH226886A (en) | 1942-01-19 | 1942-12-14 | Gas generator for operation with wood, charcoal or the like. |
Country Status (1)
| Country | Link |
|---|---|
| CH (3) | CH190142A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011020468A1 (en) * | 2009-08-18 | 2011-02-24 | Aurubis Stolberg Gmbh & Co. Kg | Brass alloy |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2737463C2 (en) * | 1977-08-19 | 1982-09-09 | Westfalia Separator Ag, 4740 Oelde | Continuously working centrifuge |
-
1936
- 1936-06-19 CH CH190142D patent/CH190142A/en unknown
-
1942
- 1942-10-29 CH CH227385D patent/CH227385A/en unknown
- 1942-12-14 CH CH226886D patent/CH226886A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011020468A1 (en) * | 2009-08-18 | 2011-02-24 | Aurubis Stolberg Gmbh & Co. Kg | Brass alloy |
Also Published As
| Publication number | Publication date |
|---|---|
| CH190142A (en) | 1937-04-15 |
| CH226886A (en) | 1943-05-15 |
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